But VisionWorks also uses the FAST algorithm. Does the VPI tracker uses this? I see no mention of it, so I am wondering if VisionWorks is better/faster in this example. From the VisionWorks documentation:
Tracker uses the FAST algorithm to find corners and passes them through the Optical Flow to the next frame. Corners it finds are filtered by motion distance, direction and Optical Flow precision to remove outliers. With the rest corners, named “key points” below, the algorithm tries to map each key point with key points tracked from the previous frames to set the weights of the new key points. Then using these key points for each object, the bounding box center is found, and then the bounding box scale is estimated.
Features from accelerated segment test (FAST) is a corner detection method originally developed by Edward Rosten and Tom Drummond. For more information, see: