1. The starting point and ending point for each behavior descriptor seems to be manually selected in this experiment. In other words, the whole video(7.5mins) is first segmented into several shots with manually labeled behavior. But in real life application, the data is always continuous. Would this algorithm works well on indefinite or inaccurate boundary? Or we can simply use a window to go through the video stream?

2. If the illumination is fluorecent light, there will be a 60hz blinking. Are there any false edges in time domain due to this blinking?