Stereo image quality assessment is important to the stereo video technologies. Traditional PSNR does not reflect the characteristics of human visual perception and can not be directly apply to the stereo image quality assessment. According to the human visual system of depth perception and focusing on regions of interest (ROI)to stereo image

a new assessing method based on the ROI of texture and depth map is proposed. First

extracting the ROI of texture image and the corresponding depth map. Then

allocating the weighting factors according to the degree of interesting. Finally

assessing the stereo image by applying the weighting factors to the various regions. Experimental results show that this method is consistent with the subjective judgments and can effectively reflect human visual perception characteristics.