双目竞争-立体视频错误隐藏的心理视觉挑战
Binocular Rivalry - Psychovisual Challenge in Stereoscopic Video Error Concealment
摘要：
在立体3D（S3 D）视频传输期间，一个或两个视图可能受到由不利信道条件、延迟或抖动引起的比特错误和分组丢失的影响。通常，如果一个视图受到由压缩、传输和渲染引起的伪影的影响，则人类视觉系统（HVS）不能对准和融合立体内容，其中失真的图案被感知为原始图像的改变，这呈现了被称为双目竞争的闪烁效果，并且对用户的体验质量（QoE）有害。本研究试图量化立体视频的双眼竞争的影响。现有的方法，其中一个或多个帧丢失在一个或两个视图经历错误隐藏，实现。然后，对错误隐藏的3D视频序列进行主观测试。然后将这些受试者提供的评价合并，并使用标准Student t检验进行分析，从而量化双眼竞争的影响，并将其与单眼观看的影响进行比较。主要的焦点是实现容错视频通信，避免双目竞争的不利影响，提高观众的整体QoE。
英文摘要：
During Stereoscopic 3D (S3D) video transmission, one or both views can be affected by bit errors and packet losses caused by adverse channel conditions, delay or jitter. Typically, the Human Visual System (HVS) is incapable of aligning and fusing stereoscopic content if one view is affected by artefacts caused by compression, transmission and rendering with distorted patterns being perceived as alterations of the original which presents a shimmering effect known as binocular rivalry and is detrimental to a user's Quality of Experience (QoE). This study attempts to quantify the effects of binocular rivalry for stereoscopic videos. Existing approaches, in which one or more frames are lost in one or both views undergo error concealment, are implemented. Then, subjective testing is carried out on the error concealed 3D video sequences. The evaluations provided by these subjects were then combined and analysed using a standard Student t-test thus quantifying the impact of binocular rivalry and allowing the impact to be compared with that of monocular viewing. The main focus is implementing error-resilient video communication, avoiding the detrimental effects of binocular rivalry and improving the overall QoE of viewers.
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