关键词: 手势分割, 帧间差分, 运动分割, 运动历史图像, 椭圆拟合

Abstract: For general gesture segmentation method is more difficult to adapt to the complex light environment, this paper proposes a new method. Firstly, the method obtains Motion History Images（MHI） from a video sequence and segment motion regions from MHIs. Then it chooses the hand gesture region from these regions. In order to overcome the problem of excessive segmentation, it uses the outline of the current movement of the region to do ellipse fitting, so that it can obtain a more accurate hand gesture segmentation result. Experimental results show that the proposed method can segment hand gesture effectively and have a greater ability to adapt to different light environment compared with general method.

Key words: hand gesture segmentation, inter frame difference, motion segmentation, motion history image, ellipse fitting