private void RunModel(Texture source, LandmarkModelType modelType, float poseThreshold = 0.75f, float iouThreshold = 0.3f)
{
// letterboxing scale factor
var scale = new Vector2(Mathf.Max((float)source.height / source.width, 1),
Mathf.Max((float)source.width / source.height, 1));
var cs = resource.process;
// Letter box Image
cs.SetInt("_LetterBoxWidth", DETECTION_INPUT_IMAGE_SIZE);
cs.SetVector("_LetterBoxScale", scale);
cs.SetTexture(0, "_LetterBoxInput", source);
cs.SetTexture(0, "_LetterBoxOutput", letterboxTexture);
cs.DispatchThreads(0, DETECTION_INPUT_IMAGE_SIZE, DETECTION_INPUT_IMAGE_SIZE, 1);
// Predict pose
detector.ProcessImage(letterboxTexture, poseThreshold, iouThreshold);
// Update pose region from detected image
cs.SetFloat("_DeltaTime", Time.deltaTime);
cs.SetInt("_UpperBodyOnly", 0);
cs.SetBuffer(1, "_Poses", detector.OutputBuffer);
cs.SetBuffer(1, "_PoseCount", detector.CountBuffer);
cs.SetBuffer(1, "_PoseRegions", poseRegionBuffer);
cs.DispatchThreads(1, 1, 1, 1);
// Scale and pad to letter-box image and crop pose region from source texture
cs.SetTexture(2, "_SourceTexture", source);
cs.SetBuffer(2, "_CropRegions", poseRegionBuffer);
cs.SetTexture(2, "_CroppedTexture", croppedTexture);
cs.DispatchThreads(2, LANDMARK_INPUT_IMAGE_SIZE, LANDMARK_INPUT_IMAGE_SIZE, 1);
landmarker.ProcessImage(croppedTexture, modelType);
// map cordinates from croped letterbox image to source image
cs.SetInt("_KeyPointCount", landmarker.KeypointCount);
cs.SetFloat("_PostDeltaTime", Time.deltaTime);
cs.SetBuffer(3, "_PostInput", landmarker.OutputLandmarkBuffer);
cs.SetBuffer(3, "_PostInputWorld", landmarker.OutputLandmarkWorldBuffer);
cs.SetBuffer(3, "_PostRegions", poseRegionBuffer);
cs.SetBuffer(3, "_PostDeltaOutput", deltaOutputBuffer);
cs.SetBuffer(3, "_PostDeltaOutputWorld", deltaOutputWorldBuffer);
cs.SetBuffer(3, "_PostOutput", outputBuffer);
cs.SetBuffer(3, "_PostOutputWorld", outputWorldBuffer);
cs.DispatchThreads(3, 1, 1, 1);
}
private void LateUpdate()
{
detector.ProcessImage(source.Texture, poseThreshold, iouThreshold);
previewUI.texture = source.Texture;
}