Primary research for voice-activated camera tracking
Zhihai Xu · Optical Technique · 2006
Camera can track a sound source by imitating the creature's phonotaxis when the sound source stands outside its field of view.Also,camera can track the sound source exactly using the image processing techniques when the sound source stands in its field of view.An experiment system integrating these two technologies was set up and kept communication with the PC.When sound signals phonated by a sound source,they were received at two sound detectors which arranged apart.The PC identified the position of the sound source primary by computing the interaural time differences(ITD) of the two signals,and located the position by rotate the system.After taking several pictures,the PC identifies and locates the sound source exactly using the image processing techniques.The camera rotates and aims at the sound source finally.The voice-activated camera tracking works.