Improving Chinese lip-reading recognizing rate by unsymmetrical lip contour model
Ling Lin · Optics and Precision Engineering · 2006
Based on analyzing the side-face image and full-face image,a new model was presented to extract the degree of pouting from a lip contour.At the same time,the differential coefficient of some parameters to describe dynamic characteristic of the lip contour were calculated.Experimental results based on a small database of Chinese words show that the parameters from unsymmetrical lip contour model improve the recognizing rate in more than 25%,which is superior to those of the traditional symmetrical lip contour model.