示例#1
0
        /// <summary>
        /// Calculates the distance data for the current frame.
        /// </summary>
        /// <returns>Distance map with dimensions Width and Height.</returns>
        protected virtual FloatCameraImage CalcDistances()
        {
            CalcDistanceMap();

            FloatCameraImage img = new FloatCameraImage(depthWidth, depthHeight);

            lock (this.depthFrameData)
            {
                lock (cameraLock)
                {
                    for (int y = 0; y < depthHeight; y++)
                    {
                        for (int x = 0; x < depthWidth; x++)
                        {
                            // mirror image
                            int idx = y * depthWidth + depthWidthMinusOne - x;
                            img[y, x] = depthFrameData[idx] * distanceMap[y, depthWidthMinusOne - x] * 0.001f;
                        }
                    }
                }

                img.TimeStamp = timestampDepth;
            }
            return(img);
        }
示例#2
0
        private FloatCameraImage CalcChannelFloat(int channelNr)
        {
            FloatCameraImage result = new FloatCameraImage((int)Width, (int)Height);

            result.FrameNumber = FrameNumber;

            float scale = 1.0f / 255.0f;

            unsafe
            {
                byte *dataPtr = (byte *)imagePtr;
                dataPtr += channelNr;

                for (int y = 0; y < Height; y++)
                {
                    for (int x = 0; x < Width; x++)
                    {
                        result[y, x] = (float)(*dataPtr) * scale;
                        dataPtr     += 4;
                    }
                }
            }

            return(result);
        }
示例#3
0
        /// <summary>Computes (image) data for the fake Noise channel.</summary>
        /// <returns>Noisy image data.</returns>
        /// <seealso cref="Camera.CalcChannel"/>
        private FloatCameraImage CalcDummyNoiseChannel()
        {
            FloatCameraImage dummyNoiseImage = new FloatCameraImage(__noiseImageWidth, __noiseImageHeight);

            // TODO: Add channel data (here: noise)
            return(dummyNoiseImage);
        }
示例#4
0
文件: F200.cs 项目: btlorch/MetriCam2
        /// <summary>
        /// Device-specific implementation of Update.
        /// Updates data buffers of all active channels with data of current frame.
        /// </summary>
        /// <remarks>This method is implicitely called by <see cref="Camera.Update"/> inside a camera lock.</remarks>
        /// <seealso cref="Camera.Update"/>
        protected override unsafe void UpdateImpl()
        {
            bool synced = true;
            /* Wait until a frame is ready: Synchronized or Asynchronous */
            pxcmStatus status;

            status = pp.AcquireFrame(synced);
            if (status < pxcmStatus.PXCM_STATUS_NO_ERROR)
            {
                log.Error(Name + ": error" + status.ToString());
            }

            /* Display images */
            sample = pp.QuerySample();

            PXCMImage.ImageData depthData;
            sample.depth.AcquireAccess(PXCMImage.Access.ACCESS_READ, PXCMImage.PixelFormat.PIXEL_FORMAT_DEPTH_F32, out depthData);
            depthImage = new FloatCameraImage(sample.depth.info.width, sample.depth.info.height);
            memcpy(new IntPtr(depthImage.Data), depthData.planes[0], new UIntPtr((uint)sample.depth.info.width * (uint)sample.depth.info.height * (uint)sizeof(float)));
            sample.depth.ReleaseAccess(depthData);

            PXCMImage.ImageData irData;
            sample.ir.AcquireAccess(PXCMImage.Access.ACCESS_READ, PXCMImage.PixelFormat.PIXEL_FORMAT_Y8, out irData);
            irImage = new ByteCameraImage(sample.ir.info.width, sample.ir.info.height);
            memcpy(new IntPtr(irImage.Data), irData.planes[0], new UIntPtr((uint)sample.ir.info.width * (uint)sample.ir.info.height * (uint)sizeof(byte)));
            sample.ir.ReleaseAccess(irData);

            pp.ReleaseFrame();
        }
示例#5
0
        static void Main(string[] args)
        {
            Console.WriteLine("------------------------------------------");
            Console.WriteLine("MetriCam 2 Minimal Sample.");
            Console.WriteLine("Get MetriCam 2 at http://www.metricam.net/");
            Console.WriteLine("------------------------------------------");

            // Create camera object
            Camera camera;

            try
            {
                camera = new Kinect2();
            }
            catch (Exception e)
            {
                Console.WriteLine(Environment.NewLine + "Error: Could not create a PrimeSense camera object.");
                Console.WriteLine((e.InnerException == null) ? e.Message : e.InnerException.Message);
                Console.WriteLine("Press any key to exit.");
                Console.ReadKey();
                return;
            }

            // Connect, get one frame, disconnect
            Console.WriteLine("Connecting camera");
            camera.Connect();

            Console.WriteLine("Fetching one frame");
            camera.Update();

            try
            {
                Console.WriteLine("Accessing color data");
                ColorCameraImage img           = (ColorCameraImage)camera.CalcChannel(ChannelNames.Color);
                Bitmap           rgbBitmapData = img.ToBitmap();
            }
            catch (ArgumentException ex)
            {
                Console.WriteLine(String.Format("Error getting channel {0}: {1}.", ChannelNames.Color, ex.Message));
            }

            try
            {
                Console.WriteLine("Accessing distance data");
                FloatCameraImage distancesData = (FloatCameraImage)camera.CalcChannel(ChannelNames.Distance);
            }
            catch (ArgumentException ex)
            {
                Console.WriteLine(String.Format("Error getting channel {0}: {1}.", ChannelNames.Distance, ex.Message));
            }

            Console.WriteLine("Disconnecting camera");
            camera.Disconnect();

            Console.WriteLine("Finished. Press any key to exit.");
            Console.ReadKey();
        }
示例#6
0
        /// <summary>
        /// Calculates the 3D point cloud from received data.
        /// </summary>
        /// <returns>point cloud</returns>
        private Point3fCameraImage Calc3D()
        {
            Point3fCameraImage result;

            lock (cameraLock)
            {
                result           = new Point3fCameraImage(imageData.Width, imageData.Height);
                result.TimeStamp = (long)imageData.TimeStamp;

                float cx   = imageData.CX;
                float cy   = imageData.CY;
                float fx   = imageData.FX;
                float fy   = imageData.FY;
                float k1   = imageData.K1;
                float k2   = imageData.K2;
                float f2rc = imageData.F2RC;

                FloatCameraImage distances = CalcDistance();

                for (int i = 0; i < imageData.Height; ++i)
                {
                    for (int j = 0; j < imageData.Width; ++j)
                    {
                        int depth = (int)(distances[i, j] * 1000);

                        // we map from image coordinates with origin top left and x horizontal (right) and y vertical
                        // (downwards) to camera coordinates with origin in center and x to the left and y upwards (seen
                        // from the sensor position)
                        double xp = (cx - j) / fx;
                        double yp = (cy - i) / fy;

                        // correct the camera distortion
                        double r2 = xp * xp + yp * yp;
                        double r4 = r2 * r2;
                        double k  = 1 + k1 * r2 + k2 * r4;
                        double xd = xp * k;
                        double yd = yp * k;

                        double s0 = Math.Sqrt(xd * xd + yd * yd + 1.0);
                        double x  = xd * depth / s0;
                        double y  = yd * depth / s0;
                        double z  = depth / s0 - f2rc;

                        x /= 1000;
                        y /= 1000;
                        z /= 1000;

                        // create point and save it
                        Point3f point = new Point3f((float)-x, (float)-y, (float)z);
                        result[i, j] = point;
                    }
                }
            }
            return(result);
        }
示例#7
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        private static FloatImage ConvertToFloatImage(FloatCameraImage fcImg)
        {
            FloatImage outImg;
            long       timestamp   = fcImg.TimeStamp;
            int        frameNumber = fcImg.FrameNumber;

            unsafe
            {
                outImg = new FloatImage(fcImg.Width, fcImg.Height, fcImg.AbandonDataBuffer());
            }
            outImg.TimeStamp   = timestamp;
            outImg.FrameNumber = frameNumber;
            return(outImg);
        }
示例#8
0
        /// <summary>
        /// Device-specific implementation of Update.
        /// Updates data buffers of all active channels with data of current frame.
        /// </summary>
        /// <remarks>This method is implicitely called by <see cref="Camera.Update"/> inside a camera lock.</remarks>
        /// <seealso cref="Camera.Update"/>
        protected override unsafe void UpdateImpl()
        {
            bool synced = true;
            // Wait until a frame is ready: Synchronized or Asynchronous
            pxcmStatus status;

            status = pp.AcquireFrame(synced);
            if (status < pxcmStatus.PXCM_STATUS_NO_ERROR)
            {
                log.Error(Name + ": " + status.ToString());
                return;
            }

            // get image
            sample = pp.QuerySample();

            long imgTS = sample.color.timeStamp;

            if (imgTS <= lastTimeStamp)
            {
                throw new TimeoutException("THIS IS NOT A TIMEOUT!");
            }
            lastTimeStamp = imgTS;

            // color image
            PXCMImage.ImageData colorData;
            if (sample.color != null)
            {
                sample.color.AcquireAccess(PXCMImage.Access.ACCESS_READ, PXCMImage.PixelFormat.PIXEL_FORMAT_RGB24, out colorData);
                Bitmap bmp     = new Bitmap(sample.color.info.width, sample.color.info.height, System.Drawing.Imaging.PixelFormat.Format24bppRgb);
                var    bmpData = bmp.LockBits(new Rectangle(0, 0, sample.color.info.width, sample.color.info.height), System.Drawing.Imaging.ImageLockMode.WriteOnly, System.Drawing.Imaging.PixelFormat.Format24bppRgb);
                memcpy(bmpData.Scan0, colorData.planes[0], new UIntPtr(3 * (uint)sample.color.info.width * (uint)sample.color.info.height));
                bmp.UnlockBits(bmpData);
                Bitmap bmp32 = bmp.Clone(new Rectangle(0, 0, widthColor, heightColor), System.Drawing.Imaging.PixelFormat.Format32bppPArgb);
                colorImage = new ColorCameraImage(bmp32);
                sample.color.ReleaseAccess(colorData);
            }
            // depth
            PXCMImage.ImageData depthData;
            if (sample.depth != null)
            {
                sample.depth.AcquireAccess(PXCMImage.Access.ACCESS_READ, PXCMImage.PixelFormat.PIXEL_FORMAT_DEPTH_F32, out depthData);
                depthImage = new FloatCameraImage(sample.depth.info.width, sample.depth.info.height);
                CopyImageWithStride(sample.depth.info.width, sample.depth.info.height, 4, depthData, new IntPtr(depthImage.Data));
                sample.depth.ReleaseAccess(depthData);
            }

            pp.ReleaseFrame();
        }
示例#9
0
        /// <summary>
        /// Converts raw confidence image to [0, 1] range.
        /// According to sensor operating instructions, the highest bits indicates whether a pixel is valid or not.
        /// More information about invalid bits would be encoded in the remaining bits.
        /// </summary>
        /// <param name="rawConfidenceMap">Raw confidence image as provided by camera</param>
        /// <returns>Confidence image as float image in range [0, 1]</returns>
        private FloatCameraImage CalcConfidenceMap(ByteCameraImage rawConfidenceMap)
        {
            int width  = rawConfidenceMap.Width;
            int height = rawConfidenceMap.Height;

            FloatCameraImage confidenceMap = new FloatCameraImage(width, height);

            for (int y = 0; y < height; y++)
            {
                for (int x = 0; x < width; x++)
                {
                    bool invalid = (rawConfidenceMap[y, x] & 0x80) > 0;
                    confidenceMap[y, x] = invalid ? 0.0f : 1.0f;
                }
            }
            return(confidenceMap);
        }
示例#10
0
        /// <summary>
        /// According to the xml records being sent by the camera as initial sequence, a confidence image comes with 16 bits per pixel such that the lowest possible value is 0 and the highest possible value is 65535.
        /// Scale this range to [0, 1].
        /// </summary>
        /// <param name="rawConfidenceMap">Confidence map as provided by the camera</param>
        /// <returns>Confidence map as float image scaled to [0, 1] range</returns>
        private FloatCameraImage CalcConfidenceMap(UShortCameraImage rawConfidenceMap)
        {
            int   width   = rawConfidenceMap.Width;
            int   height  = rawConfidenceMap.Height;
            float scaling = 1.0f / (float)ushort.MaxValue;

            FloatCameraImage confidenceMap = new FloatCameraImage(width, height);

            for (int y = 0; y < height; y++)
            {
                for (int x = 0; x < width; x++)
                {
                    confidenceMap[y, x] = scaling * rawConfidenceMap[y, x];
                }
            }

            return(confidenceMap);
        }
示例#11
0
        //private void TestBltCLI()
        //{
        //    // ip: 192.168.1.146
        //    BluetechnixCLI cam = new BluetechnixCLI();
        //    cam.IPAddress = "192.168.1.146";
        //    cam.Connect();
        //    Console.WriteLine("Got camera: {0}", cam.SerialNumber);
        //    cam.MedianFilter = true;
        //    cam.FrameAverageFilter = true;
        //    cam.BilateralFilter = true;
        //    cameras.Add(cam);
        //    cam.ActivateChannel(ChannelNames.Color);
        //    cam.SelectChannel(ChannelNames.Color);
        //    bgWorkerGetFrames.RunWorkerAsync();
        //}

        private void TestV3S()
        {
            VisionaryT cam = new VisionaryT();

            cam.IPAddress = "192.168.1.137"; // DHCP
            cam.Connect();


            // get distance frame
            {
                cam.ActivateChannel(ChannelNames.Distance);
                cam.SelectChannel(ChannelNames.Distance);
                cam.Update();
                FloatCameraImage distances = (FloatCameraImage)cam.CalcSelectedChannel();
                float            min       = distances[0];
                float            max       = distances[0];
                float            mean      = 0F;
                float            mid       = distances[(int)(cam.Width * (cam.Height / 2) + cam.Width / 2)];
                for (int i = 0; i < cam.Height; ++i)
                {
                    for (int j = 0; j < cam.Width; ++j)
                    {
                        float val = distances[i, j];
                        if (val < min)
                        {
                            min = val;
                        }
                        if (val > max)
                        {
                            max = val;
                        }
                        mean += val;
                    }
                }
                mean /= cam.Height * cam.Width;
                Console.WriteLine("Distances: Min: {0}m  Max: {1}m Mean: {2}m Mid: {3}m", min, max, mean, mid);
            }
            cam.ActivateChannel(ChannelNames.Intensity);
            cam.SelectChannel(ChannelNames.Intensity);
            cameras.Add(cam);
            bgWorkerGetFrames.RunWorkerAsync();
            //cam.Disconnect();
        }
示例#12
0
        private FloatCameraImage CalcLongExposureIR()
        {
            FloatCameraImage result = new FloatCameraImage(depthWidth, depthHeight);

            lock (cameraLock)
            {
                for (int y = 0; y < this.depthHeight; y++)
                {
                    for (int x = 0; x < this.depthWidth; x++)
                    {
                        // mirror image
                        int idx = y * depthWidth + depthWidthMinusOne - x;
                        result[y, x] = (float)this.longExposureIRData[idx];
                    }
                }
            }

            return(result);
        }
示例#13
0
 /// <summary>
 /// Device-specific implementation of Update.
 /// Updates data buffers of all active channels with data of current frame.
 /// </summary>
 /// <remarks>This method is implicitely called by <see cref="Camera.Update"/> inside a camera lock.</remarks>
 /// <seealso cref="Camera.Update"/>
 protected override void UpdateImpl()
 {
     if (!IsConnected)
     {
         return;
     }
     lock (updateLock)
     {
         if (!frameAvailable || latestAmplitudeImage == null || latestDistanceImage == null || latestPoint3fImage == null || latestZImage == null || latestRawConfidenceImage == null)
         {
             return;
         }
         amplitudeImage     = latestAmplitudeImage;
         distanceImage      = latestDistanceImage;
         point3fImage       = latestPoint3fImage;
         zImage             = latestZImage;
         rawConfidenceImage = latestRawConfidenceImage;
         frameAvailable     = false;
     }
 }
示例#14
0
        private static void Capture(TriggeredStereoCamera cam, out FloatImage left, out FloatImage right, ref int cnt)
        {
            cam.Update();
            cnt++;
            FloatCameraImage leftCamImg  = cam.CalcChannel(ChannelNames.Left).ToFloatCameraImage();
            FloatCameraImage rightCamImg = cam.CalcChannel(ChannelNames.Right).ToFloatCameraImage();
            long             ts_l        = leftCamImg.TimeStamp;
            long             ts_r        = rightCamImg.TimeStamp;
            int fn_l = leftCamImg.FrameNumber;
            int fn_r = rightCamImg.FrameNumber;

            unsafe
            {
                left  = new FloatImage(leftCamImg.Width, leftCamImg.Height, leftCamImg.AbandonDataBuffer());
                right = new FloatImage(rightCamImg.Width, rightCamImg.Height, rightCamImg.AbandonDataBuffer());
            }
            left.TimeStamp    = ts_l;
            right.TimeStamp   = ts_r;
            left.FrameNumber  = fn_l;
            right.FrameNumber = fn_r;
        }
示例#15
0
        /// <summary>
        /// Calculates the intensity channel.
        /// </summary>
        /// <returns>Intensity image</returns>
        private FloatCameraImage CalcIntensity()
        {
            FloatCameraImage result;

            lock (cameraLock)
            {
                result           = new FloatCameraImage(imageData.Width, imageData.Height);
                result.TimeStamp = (long)imageData.TimeStamp;
                int start = imageData.IntensityStartOffset;
                for (int i = 0; i < imageData.Height; ++i)
                {
                    for (int j = 0; j < imageData.Width; ++j)
                    {
                        // take two bytes and create integer (little endian)
                        uint value = (uint)imageBuffer[start + 1] << 8 | (uint)imageBuffer[start + 0];
                        result[i, j] = (float)value;
                        start       += 2;
                    }
                }
            }
            return(result);
        }
示例#16
0
        /// <summary>
        /// Extracts a bitmap representation from the current raw-data.
        /// </summary>
        /// <returns>Bitmap representation of the current frame.</returns>
        private ColorCameraImage CalcColor()
        {
            ColorCameraImage result = new ColorCameraImage((int)Width, (int)Height);

            result.FrameNumber = FrameNumber;

            if (IsMonochrome)
            {
                FloatCameraImage img    = CalcChannelFloat(0);
                float            factor = (32 == bitsPerPixel) ? 255.0f : 1.0f;

                BitmapData bData = result.Data.LockBits(new Rectangle(0, 0, imageWidth, imageHeight), System.Drawing.Imaging.ImageLockMode.WriteOnly, System.Drawing.Imaging.PixelFormat.Format24bppRgb);
                for (int y = 0; y < result.Data.Height; y++)
                {
                    byte *linePtr = (byte *)bData.Scan0 + y * bData.Stride;
                    for (int x = 0; x < result.Data.Width; x++)
                    {
                        byte d         = (byte)(img[y, x] * factor);
                        *    linePtr++ = d;
                        *    linePtr++ = d;
                        *    linePtr++ = d;
                    }
                }
                result.Data.UnlockBits(bData);
            }
            else
            {
                BitmapData bData = result.Data.LockBits(new Rectangle(0, 0, imageWidth, imageHeight), System.Drawing.Imaging.ImageLockMode.WriteOnly, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
                if (bData.Stride != stride)
                {
                    result.Data.UnlockBits(bData);
                    throw new InvalidOperationException("Stride is incompatible.");
                }
                CopyMemory((byte *)bData.Scan0, imagePtr, (uint)(stride * imageHeight));
                result.Data.UnlockBits(bData);
            }

            return(result);
        }
示例#17
0
        private FloatCameraImage CalcChannelShort()
        {
            FloatCameraImage result = new FloatCameraImage((int)Width, (int)Height);

            result.FrameNumber = FrameNumber;

            unsafe
            {
                short *dataPtr = (short *)imagePtr;

                for (int y = 0; y < Height; y++)
                {
                    for (int x = 0; x < Width; x++)
                    {
                        result[y, x] = (float)(*dataPtr);
                        dataPtr++;
                    }
                }
            }

            return(result);
        }
示例#18
0
        private FloatCameraImage CalcAmplitudes()
        {
            FloatCameraImage img = new FloatCameraImage(depthWidth, depthHeight);

            lock (this.irFrameData)
            {
                lock (cameraLock)
                {
                    for (int y = 0; y < this.depthHeight; y++)
                    {
                        for (int x = 0; x < this.depthWidth; x++)
                        {
                            // mirror image
                            int idx = y * depthWidth + depthWidthMinusOne - x;
                            img[y, x] = (float)this.irFrameData[idx];
                        }
                    }
                }

                img.TimeStamp = timestampIR;
            }
            return(img);
        }
示例#19
0
    unsafe public void FloatImage()
    {
        float min = 1;
        float max = 0;

        if (camera.IsConnected)
        {
            camera.Update();
            FloatCameraImage img       = (FloatCameraImage)camera.CalcChannel(MetriCam2.ChannelNames.ZImage);
            float *          img_float = img.Data;

            for (int i = 0; i < img.Width * img.Height; i++)
            {
                if (img_float[i] > max)
                {
                    max = img_float[i];
                }
                else if (img_float[i] < min)
                {
                    min = img_float[i];
                }
            }


            Texture2D tex = new Texture2D(img.Width, img.Height);

            Color[] depthColor = new Color[img.Width * img.Height];

            float temp = max - min;

            int fool = 30;
            int tmp  = 5;

            for (int i = 0; i < img.Width * img.Height; i++)
            {
                if (img_float[i] > 800 && img_float[i] < 1200)
                {
                    depthColor[i] = BlackToWhite.Evaluate((img_float[i] - 800) / 400);
                }
                else
                {
                    depthColor[i] = Color.black;
                }

                //if (img_float[i] % 100 <50)
                //{
                //    depthColor[i] = Color.black;
                //}
                //else
                //{
                //    depthColor[i] = Color.white;
                //}

                //depthColor[i] = BlackToWhite.Evaluate(img_float[i] / temp);
            }

            tex.SetPixels(depthColor);
            tex.Apply();
            DepthImg.texture = tex;

            img.Dispose();
        }
    }
示例#20
0
        private void backgroundWorkerGetFrames_DoWork(object sender, DoWorkEventArgs e)
        {
            while (!backgroundWorkerGetFrames.CancellationPending)
            {
                // capture a new frame
                try
                {
                    //cam.Invoke("StartStreams", null);
                    cam.Update();
                    //cam.Invoke("StopStreams", null);
                }
                catch (Exception ex)
                {
                    GC.KeepAlive(ex);
                    cam = new CameraClient("192.168.1.72", 8081, 8082, "MetriCam2.Cameras.Kinect2", "MetriCam2.Cameras.Kinect2");
                    cam.Connect();
                    //cam.Invoke("StopStreams", null);
                }

                Point3fImage p3Image = null;
                if (channel3DName == ChannelNames.Point3DImage)
                {
                    Point3fCameraImage image3D = (Point3fCameraImage)cam.CalcChannel(ChannelNames.Point3DImage);
                    p3Image = new Point3fImage(ref image3D);
                }
                else if (channel3DName == ChannelNames.Distance || channel3DName == ChannelNames.ZImage)
                {
                    FloatCameraImage image3D = (FloatCameraImage)cam.CalcChannel(channel3DName);
                    p3Image = new Point3fImage(new FloatImage(ref image3D), projectiveTransformation, channel3DName == ChannelNames.ZImage);
                }

                FloatImage ir     = ConvertToFloatImage(cam.CalcChannel(channel2DName).ToFloatCameraImage());
                Bitmap     bitmap = ir.ToBitmap();
                //secondBitmap = zImage.ToBitmap();
                // set the picturebox-bitmap in the main thread to avoid concurrency issues (a few helper methods required, easier/nicer solutions welcome).
                this.InvokeSetBmp(bitmap);

                MaskImage mask = new MaskImage(p3Image.Width, p3Image.Height);
                ir = ir.Normalize();
                for (int y = 0; y < mask.Height; y++)
                {
                    for (int x = 0; x < mask.Width; x++)
                    {
                        Point3f p = p3Image[y, x];
                        if (p.X > -99f && p.X < 99f && p.Y > -99f & p.Y < 99f && p.Z > 0 && p.Z < 99f)
                        {
                            mask[y, x] = 0xff;
                        }
                    }
                }

                p3Image.EliminateFlyingPixels(5, 0.005f, 0.2f);
                p3Image.Mask = mask;

                TriangleIndexList til = new TriangleIndexList(p3Image, false, true);
                if (renderTil == null)
                {
                    renderTil = new Metri3D.Objects.RenderTriangleIndexList(til, Color.White);
                    panel3D.AddRenderObject(renderTil);
                }
                else
                {
                    renderTil.UpdateData(til, Color.White);
                }
                panel3D.Invalidate();
            }
        }
示例#21
0
        private void UpdateWorker_DoWork(object sender, DoWorkEventArgs e)
        {
            while (!updateWorker.CancellationPending)
            {
                lock (updateLock)
                {
                    byte[] buffer = new byte[16];
                    Receive(clientSocket, buffer, 0, 16, 300000);

                    var str = Encoding.Default.GetString(buffer, 5, 9);

                    int frameSize;
                    Int32.TryParse(str, out frameSize);
                    byte[] frameBuffer = new byte[frameSize];
                    Receive(clientSocket, frameBuffer, 0, frameSize, 300000);

                    FloatCameraImage   localAmplitudeImage     = new FloatCameraImage(width, height);
                    FloatCameraImage   localDistanceImage      = new FloatCameraImage(width, height);
                    FloatCameraImage   localXImage             = new FloatCameraImage(width, height);
                    FloatCameraImage   localYImage             = new FloatCameraImage(width, height);
                    FloatCameraImage   localZImage             = new FloatCameraImage(width, height);
                    Point3fCameraImage localPoint3fImage       = new Point3fCameraImage(width, height);
                    ByteCameraImage    localRawConfidenceImage = new ByteCameraImage(width, height);

                    // All units in mm, thus we need to divide by 1000 to obtain meters
                    float factor = 1 / 1000.0f;
                    // Response shall start with ASCII string "0000star"
                    using (MemoryStream stream = new MemoryStream(frameBuffer))
                    {
                        using (BinaryReader reader = new BinaryReader(stream))
                        {
                            // After the start sequence of 8 bytes, the images follow in chunks
                            // Each image chunk contains 36 bytes header including information such as image dimensions and pixel format.
                            // We do not need to parse the header of each chunk as it is should be the same for every frame (except for a timestamp)
                            reader.BaseStream.Position = 44;
                            for (int y = 0; y < height; y++)
                            {
                                for (int x = 0; x < width; x++)
                                {
                                    localAmplitudeImage[y, x] = (float)reader.ReadUInt16();
                                }
                            }
                            reader.BaseStream.Position += 36;
                            for (int y = 0; y < height; y++)
                            {
                                for (int x = 0; x < width; x++)
                                {
                                    localDistanceImage[y, x]  = (float)reader.ReadUInt16();
                                    localDistanceImage[y, x] *= factor;
                                }
                            }
                            reader.BaseStream.Position += 36;
                            for (int y = 0; y < height; y++)
                            {
                                for (int x = 0; x < width; x++)
                                {
                                    localXImage[y, x]  = (float)reader.ReadInt16();
                                    localXImage[y, x] *= factor;
                                }
                            }
                            reader.BaseStream.Position += 36;
                            for (int y = 0; y < height; y++)
                            {
                                for (int x = 0; x < width; x++)
                                {
                                    localYImage[y, x]  = (float)reader.ReadInt16();
                                    localYImage[y, x] *= factor;
                                }
                            }
                            reader.BaseStream.Position += 36;
                            for (int y = 0; y < height; y++)
                            {
                                for (int x = 0; x < width; x++)
                                {
                                    localZImage[y, x]  = (float)reader.ReadInt16();
                                    localZImage[y, x] *= factor;
                                }
                            }
                            reader.BaseStream.Position += 36;
                            for (int y = 0; y < height; y++)
                            {
                                for (int x = 0; x < width; x++)
                                {
                                    localRawConfidenceImage[y, x] = reader.ReadByte();
                                }
                            }
                        }
                        for (int y = 0; y < height; y++)
                        {
                            for (int x = 0; x < width; x++)
                            {
                                localPoint3fImage[y, x] = new Point3f(localXImage[y, x], localYImage[y, x], localZImage[y, x]);
                            }
                        }
                    }
                    latestAmplitudeImage     = localAmplitudeImage;
                    latestDistanceImage      = localDistanceImage;
                    latestPoint3fImage       = localPoint3fImage;
                    latestZImage             = localZImage;
                    latestRawConfidenceImage = localRawConfidenceImage;
                    frameAvailable           = true;
                }
            }
        }