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DescriptorMatcherKnnMatchAsync Method (IInputArray, IOutputArray, Int32, VectorOfGpuMat, Stream)
Finds the k best matches for each descriptor from a query set (asynchronous version).

Namespace:  Emgu.CV.Cuda
Assembly:  Emgu.CV.World (in Emgu.CV.World.dll) Version: (
public void KnnMatchAsync(
	IInputArray queryDescriptors,
	IOutputArray matches,
	int k,
	VectorOfGpuMat masks = null,
	Stream stream = null


Type: Emgu.CVIInputArray
Query set of descriptors.
Type: Emgu.CVIOutputArray
Matches array stored in GPU memory. Internal representation is not defined. Use DescriptorMatcher::knnMatchConvert method to retrieve results in standard representation.
Type: SystemInt32
Count of best matches found per each query descriptor or less if a query descriptor has less than k possible matches in total.
masks (Optional)
Type: Emgu.CV.CudaVectorOfGpuMat
Mask specifying permissible matches between an input query and train matrices of descriptors.
stream (Optional)
Type: Emgu.CV.CudaStream
CUDA stream.
See Also