基于视差变化连续性调节的3D视频舒适度增强

为解决3D 视频因视差变化不连续而引起的视觉疲劳, 提出一种非舒适帧视差调节方法。该方法根据舒适度评价模型, 利用JMVC(Joint Multi-view Video Coding)多视点编码系统中的当前帧运动矢量和视差矢量信息, 找到影响舒适度的视频帧。通过非舒适帧的视差调节方法, 对影响舒适度的视频帧进行视差调节, 得到提高人眼观视舒适度的新视频。观视者根据自身生理症状和疲劳反应进行主观打分。通过多组实验前后对比的结果表明, 通过非舒适帧的视差调节后得到的立体视频观看舒适度比处理前提高5. 13%, 而且在保证视频质量的基础上, 提高了立体视频观视舒适度。

Visual Comfort Improvement of 3D Video Based on Parallax Change Continuity Adjustment

In order to solve the problem of visual fatigue induced by parallax change discontinuity, a method of adjusting uncomfortable frame is proposed. Based on the comfort evaluation model, the motion and disparity vectors of the current frame derived from the JMVC(Joint Multi-view Video Coding) multi-viewing coding system are applied to find the video frame which can cause visual fatigue, and such frame is further adjusted using disparity adjustment of a uncomfortable frame to get a new frame which can enhance the visual comfort for eyes. Viewers make subjective scores according to their physical symptoms and fatigue response. According to comparisons before and after adjustment, the results show that the comfort level using the proposed method increases by 5.13% than prior through parallax adjustment for uncomfortable frames. The proposed method improves the comfort of viewing stereoscopic video, guaranteeing the quality of video.