The approach is like this: firstly enhance chromatic video image, then segment enhanced gray images with thresholds, and finally obtain lip shapes.
英
美
- 首先针对彩色视频图像进行唇色增强,对增强后的灰度图像进行阈值分割,获取唇部包围框,并根据口型发音的视觉特征进行初分类;