public async Task <(IEnumerable <Violation> Violations, IEnumerable <Human> Humans)> Detect(Mat image)
{
return(await Task.Run(delegate
{
lock (detectorLockLink)
{
var humans = new List <Human>();
var violations = new List <Violation>();
try
{
var items = detector.Detect(image);
foreach (var(Confidence, CenterX, CenterY, Width, Height) in items)
{
var human = new Human(CenterX - (Width / 2), CenterY - (Height / 2), Width, Height, image.Width, image.Height);
var pers = session.GridProjection.Perspective(human.BottomCenter);
if (pers.HasValue)
{
human.PerspectivePoint = pers.Value;
humans.Add(human);
}
}
foreach (var i in humans)
{
foreach (var j in humans)
{
if (i == j)
{
continue;
}
if (violations.Any(v =>
(i.BottomCenter == v.Line.A && j.BottomCenter == v.Line.B) ||
(i.BottomCenter == v.Line.B && j.BottomCenter == v.Line.A) ||
(j.BottomCenter == v.Line.A && i.BottomCenter == v.Line.B) ||
(j.BottomCenter == v.Line.B && i.BottomCenter == v.Line.A)))
{
continue;
}
if (session.GridProjection.IsProjectionReady)
{
double dis = GeometryHelpers.GetDistance(i.PerspectivePoint, j.PerspectivePoint);
if (dis < ViolationThreshold)
{
i.IsViolation = true;
j.IsViolation = true;
violations.Add(new Violation(new RelativeLine(i.BottomCenter, j.BottomCenter), dis));
}
}
}
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
return (violations, humans);
}
}));
