If you think about it a capacitive touch sensor provides a noisy Grayscale image and the goal is to detect and classify blobs as touch gestures as quickly and a

If you think about it a capacitive touch sensor provides a noisy Grayscale image and the goal is to detect and classify blobs as touch gestures as quickly and accurately as possible. Since it is running at all times and latency really burns the UX. Consequences this has always been done on a HW accelerator.