Vision Processing - Target Recognition

[nathan_hui]

What are some approaches to target recognition that FRC uses? That is, what is the algorithm teams use to recognize the vision target in the image?

CHS Robotics used a jury-rigged system with the NI Vision Library to look at rectangles and sizes to identify targets in 2012. I later personally wrote another algorithm that did pattern recognition on the corners of the targets. At UCSD, I'm now working with a project that uses a biologically inspired discriminant saliency algorithm for target acquisition and recognition. Are the approaches just as varied and complex in FRC?