CAJ | 학술논문

针对立体图像的客观质量评价问题,提出了一种适合于立体压缩图像的质量评价方法.该方法基于平面图像的人类视觉系统评价模型,考虑了人类视觉系统的多通道特性和对比度敏感度特性,使用Contourlet变换实现多通道分解,将立体图像对的差值信号进行评价.实验结果表明,该方法得到的质量评价结果符合人眼视觉特性,与主观质量评价方法的一致性较好,能够客观反映压缩立体图像的质量.
침대입체도상적객관질량평개문제,제출료일충괄합우입체압축도상적질량평개방법.해방법기우평면도상적인류시각계통평개모형,고필료인류시각계통적다통도특성화대비도민감도특성,사용Contourlet변환실현다통도분해,장입체도상대적차치신호진행평개.실험결과표명,해방법득도적질량평개결과부합인안시각특성,여주관질량평개방법적일치성교호,능구객관반영압축입체도상적질량.
For the objective measurement of stereo images,a method was proposed which was suitable for compressed im-ages. The method was based on human vision system models of planar images for objective quality measurements,taking the characteristics of multi-channel and contrast sensitivity of human visual system into consideration. Contourlet transform was applied to realize multi-channel decomposition. The absolute differences of stereo images were used for quality measure-ment. Experimental results show that the method basically accords with human vision characteristics,and can reflect the quality of stereo compressed images objectively. It is also consistent with subjective evaluation preferably.