Fully Automatic Timing for a Personal Device

This paper presents a method for implementing fully automatic timing on a personal electronic device. An initial firstpass is done through all of the video frames, finding the subtracted image between the video frames and the initial image of finish line to determine an estimated frame where the object first crosses the finish line. After this frame has been found, the SIFT and RANSAC algorithms are performed on a small window of frames around the estimated finish frame and correct for any camera translation or rotation that may have taken place. The subtraction algorithm is then repeated on this small window of corrected frames to find the final finish frame. Experimental results show the proposed method performs well in a variety of conditions.