基于人眼视觉特征的立体图像质量客观评价方法

Objective Quality Evaluation Method of Stereo Image Based on Human Visual Characteristics

在充分利用人类视觉特性的基础上,模拟人眼感知立体图像的方式,提出了一种立体图像质量客观评价方法。该方法考虑了对比度敏感度、多通道结构和掩盖特性等多种人眼视觉特性.在处理HVS模型的多通道中,将图像的空间频率按视觉系统的掩盖效应特点分成5个带分别进行滤波,以改变原始图像的空间频率.实验结果表明,所提出的方法与主观评价结果基本一致,能够反映图像质量以及立体感的优劣.

Through analyzing the characteristics of human visual system and simulating human visual perception of stereo image ,an objective quality evaluation method of stereo image was proposed in this paper. The method took into consideration the contrast sensitivity function,multi-channel structure ,masking effect and so on,the main properties of human visual system. During the processing of the multi-channel in the HVS model,the spatial frequency of image is divided into five bands to vary spatial frequency of the initial image according to the characteristic of masking effect. The experimental results show that the proposed method is in accordance with subjective evaluation and can reflect the image quality and les stereoscopic.