Identification and annotation of erotic film based on content analysis
Donghui Wang, Miaoliang Zhu, Xin Yuan, Hui Qian · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2005
The paper brings forward a new method for identifying and annotating erotic films based on content analysis. First, the film is decomposed to video and audio stream. Then, the video stream is segmented into shots and key frames are extracted from each shot. We filter the shots that include potential erotic content by finding the nude human body in key frames. A Gaussian model in YCbCr color space for detecting skin region is presented. An external polygon that covered the skin regions is used for the approximation of the human body. Last, we give the degree of the nudity by calculating the ratio of skin area to whole body area with weighted parameters. The result of the experiment shows the effectiveness of our method.