摘要
图象质量的正确评价是图象信息工程领域内一项很有意义的研究课题 ,但现有的图象客观评价方法并不完全符合人眼视觉特性 .合理地评价图象质量应充分遵循人眼的视觉特性 ,但由于受到人的心理、文化背景、周围环境、不同的应用场合等多种因素的影响 ,人眼对同一幅图象中的不同区域往往具有不同的感兴趣程度 ,即人眼具有视觉兴趣性特性 .该文在充分利用视觉兴趣性特性的基础上 ,针对只存在一个感兴趣区的图象 ,提出了一种简化的图象质量评价方法 .该方法近似地认为人眼对感兴趣区的兴趣程度与其面积成反比 ,当图象中感兴趣区的面积为零时 ,该文方法将退化为客观质量评价方法 ,也就是说客观质量评价方法是该方法的特例 .实验结果证明 ,该方法能够较好地符合人眼的主观视觉特性 .
Research on right quality assessment of image is very meaningful in the image information project, but the objective quality assessment of image cannot always be in accordance with human vision. Any reasonable quality assessment method of image should abide fully by human subjective vision. Due to many factors such as visual psychology, culture background, surrounding environment, different applications and so on, an image can be divided into different regions of interest (ROI) by vision interests. To best advantage of human visual interests, a simplified method for subjective assessment of image is presented to an image with only one ROI in this paper. The degree of visual interest to the ROI of the image is regarded approximately to be an inverse measure of the acreage of the ROI. As the acreage of the ROI is zero, the method will become the objective quality assessment of image, that is to say, the objective quality assessment of image is a specific case of the method in this paper. The experimental results have shown the effectiveness of the proposal scheme. It is in better accordance with human subjective vision.
出处
《中国图象图形学报（A辑）》
CSCD
2000年第4期300-303,共4页
Journal of Image and Graphics
基金
国家 8 63计划资助项目!( 863 -3 0 6-ZT0 3 -0 9)
