Mixed resolution coding of stereoscopic video for Mobile devices

2009 3DTV Conference: The True Vision - Capture, Transmission and Display of 3D Video Pub Date : 2009-05-04 DOI:10.1109/3DTV.2009.5069629

H. Brust, A. Smolic, K. Mueller, G. Tech, T. Wiegand

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引用次数: 76

Abstract

This paper presents results for full and mixed resolution stereo video coding including subjective and objective evaluation for 3DTV on Mobile devices. For this, objective as well as subjective tests have been carried out with different sequences at different image sizes and evaluated on two different stereoscopic displays. The subjective tests showed, that for uncoded sequences full resolution was rated better, however for coded sequences at low bit rates mixed resolution was rated better. An unsharp masking algorithm for up-sampling the lower resolution view only partially improved the overall quality because coding artifacts were strengthened as well. Objective tests showed that the optimum bit rate distribution for mixed resolution stereo video coding is 30% to 35% of the total bit rate for the lower resolution view (half horizontal and half vertical). Finally, tests showed that mixed resolution stereo video decoding with up-sampling is less complex than decoding full resolution stereo video which is important for implementation on mobile devices.

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移动设备立体视频的混合分辨率编码

本文介绍了移动设备上3DTV的全分辨率和混合分辨率立体视频编码结果，包括主观和客观评价。为此，在不同的图像尺寸下使用不同的序列进行了客观和主观测试，并在两种不同的立体显示器上进行了评估。主观测试表明，对于未编码序列，全分辨率被评为更好，而对于低比特率的编码序列，混合分辨率被评为更好。对低分辨率视图进行上采样的非锐利掩蔽算法仅部分提高了整体质量，因为编码伪影也得到了加强。客观测试表明，混合分辨率立体视频编码的最佳码率分布为低分辨率视图(半水平半垂直)总码率的30% ~ 35%。最后，测试表明，上采样混合分辨率立体视频解码比全分辨率立体视频解码更简单，这对于在移动设备上实现至关重要。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2009 3DTV Conference: The True Vision - Capture, Transmission and Display of 3D Video

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