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    • 1. 发明授权
    • Digital 3D/stereoscopic video compression technique utilizing disparity
and motion compensated predictions
    • 数字3D /立体视频压缩技术利用视差和运动补偿预测
    • US5619256A
    • 1997-04-08
    • US452463
    • 1995-05-26
    • Barin G. HaskellRichard V. KollaritsAtul Puri
    • Barin G. HaskellRichard V. KollaritsAtul Puri
    • G06T9/00H04N7/26H04N7/50H04N13/00
    • H04N13/0048H04N13/0059H04N19/597H04N19/61H04N13/0055H04N13/0239H04N13/0402H04N13/0434H04N13/0438H04N13/0445H04N13/0456H04N13/0459H04N13/0497H04N19/30H04N2013/0081H04N2013/0085
    • Efficient digital compression of 3D/stereoscopic video is achieved by a novel technique in which various views forming 3D/stereoscopic video are coded by utilizing the redundancies among the views. Coding is performed in a manner compatible with existing equipment to allowing decoding of one layer of video for display on normal (i.e., monoscopic) displays. The motion compensated discrete cosine transform ("DCT") coding framework of existing standards such as the Motion Pictures Expert Group-Phase 2 ("MPEG-2") video standard is exploited, and when necessary extended, to result in highly efficient, yet practical, coding schemes. In constrast with known techniques of encoding the two views forming stereoscopic video which rely on the use of a disparity estimate between the two views (where one of the views is the reference, coded by itself and the other is disparity compensated predicted and coded with respect to the reference view), the present techniques invention utilize one disparity estimate and one motion compensated estimate. Two novel methods for combining these estimates for prediction are provided. The first method provides an average between the two estimates; the second method allows choice between various combinations resulting from prespecified weightings applied to the estimates. Such a technique, advantageously, represents a significant improvement over known techniques in achieving high-efficiency digital compression of 3D/Stereoscopic video, and advantageously is fully compatible with existing video compression standards. Furthermore, although digital broadcast service for 3D/stereoscopic television can be realized by the practice of the invention immediately, full compatibility with normal video displays is provided, allowing gradual introduction of high quality stereoscopic displays in future.
    • 3D /立体视频的高效数字压缩是通过利用视图中的冗余来编码形成3D /立体视频的各种视图的新技术实现的。 以与现有设备兼容的方式执行编码以允许对一层视频进行解码以在正常(即单视场)显示器上显示。 利用现有标准的运动补偿离散余弦变换(“DCT”)编码框架,如运动图像专家组 - 第2阶段(“MPEG-2”)视频标准,并在必要时进行扩展,以达到高效率 实用,编码方案。 与已知的技术相比,编码立体视频的两个视图依赖于两视图之间的视差估计(其中一个视图是参考,其自身编码而另一个是视差补偿预测和编码) 参考视图),本技术发明利用一个视差估计和一个运动补偿估计。 提供了两种用于组合这些预测估计的新方法。 第一种方法提供两种估计之间的平均值; 第二种方法允许在预测的加权产生的各种组合之间进行选择,这些加权应用于估计。 这种技术有利地代表了对于实现3D /立体视频的高效数字压缩的已知技术的显着改进,并且有利地与现有的视频压缩标准完全兼容。 此外,虽然可以立即通过本发明的实践来实现用于3D /立体电视的数字广播服务,但是提供了与普通视频显示器的完全兼容性,允许将来逐渐引入高质量立体显示器。
    • 2. 发明授权
    • Digital 3D/stereoscopic video compression technique utilizing two
disparity estimates
    • 使用两个视差估计的数字3D /立体视频压缩技术
    • US5612735A
    • 1997-03-18
    • US452464
    • 1995-05-26
    • Barin G. HaskellRichard V. KollaritsAtul Puri
    • Barin G. HaskellRichard V. KollaritsAtul Puri
    • G06T9/00H04N7/26H04N7/50H04N13/00
    • H04N13/0059H04N13/0048H04N19/597H04N19/61H04N13/0055H04N13/0239H04N13/0402H04N13/0434H04N13/0438H04N13/0445H04N13/0459H04N13/0497H04N19/30H04N2013/0081H04N2013/0085
    • Efficient digital compression of 3D/stereoscopic video is achieved by a novel technique in which various views forming 3D/stereoscopic video are coded by utilizing the redundancies among the views. Coding is performed in a manner compatible with existing equipment to allowing decoding of one layer of video for display on normal (i.e., monoscopic) displays. The motion compensated discrete cosine transform ("DCT") coding framework of existing standards such as the Motion Pictures Expert Group-Phase 2 ("MPEG-2") video standard is exploited, and when necessary extended, to result in highly efficient, yet practical, coding schemes. In constrast with known techniques of encoding the two views forming stereoscopic video which rely on the use of a disparity estimate between the two views (where one of the views is the reference, coded by itself and the other is disparity compensated predicted and coded with respect to the reference view), the present techniques utilize two disparity estimates: one disparity estimate which allows forward prediction and other disparity estimate allowing backward prediction with respect to the reference view.
    • 3D /立体视频的高效数字压缩是通过利用视图中的冗余来编码形成3D /立体视频的各种视图的新技术实现的。 以与现有设备兼容的方式执行编码以允许对一层视频进行解码以在正常(即单视场)显示器上显示。 利用现有标准的运动补偿离散余弦变换(“DCT”)编码框架,如运动图像专家组 - 第2阶段(“MPEG-2”)视频标准,并在必要时进行扩展,以达到高效率 实用,编码方案。 与已知的技术相比,编码立体视频的两个视图依赖于两视图之间的视差估计(其中一个视图是参考,其自身编码而另一个是视差补偿预测和编码) 参考视图),本技术利用两个视差估计:一个视差估计,其允许前向预测和其他视差估计,允许相对于参考视图的反向预测。