The Tensor Voting Framework is a powerful technique for perceptual grouping, manifold learning, etc. It has proved to be a useful tool in the ComputerVision community. OpenTVF is an open source implementation of TVF.
CVSharp (aka ComputerVision in C#) is a ComputerVision project. Until the present day just one part of the whole project was actually developed. It's called CVSharp Lab, an Image Processing Tool.