Transcoded images for improved trick play
    6.
    发明授权
    Transcoded images for improved trick play 有权
    经转码的图像用于改进特技播放

    公开(公告)号:US08712169B2

    公开(公告)日:2014-04-29

    申请号:US11989515

    申请日:2005-08-26

    IPC分类号: G06K9/36 G06K9/46 H04N7/14

    摘要: A method and apparatus are provided for facilitating processing of images contained in an encoded video stream wherein a plurality of non-intra coded images are transcoded into intra-coded images (I-images). The transcoded I-images are then used to facilitate trick mode playback, such as reverse playback, fast reverse playback or fast forward playback. In addition, an image sequence window is defined and transcoded I-images which fall outside of the image sequence window are deleted from a memory.

    摘要翻译: 提供了一种方法和装置,用于便于处理包含在编码视频流中的图像,其中多个非帧内编码图像被转码成帧内编码图像(I图像)。 然后,经过代码转换的I图像用于促进特技模式播放,例如反向播放,快速反向播放或快进播放。 此外,定义了图像序列窗口,并且从存储器中删除落在图像序列窗口之外的代码转换的I图像。

    Method and apparatus for reusing available motion information as a motion estimation predictor for video encoding
    7.
    发明授权
    Method and apparatus for reusing available motion information as a motion estimation predictor for video encoding 有权
    用于将可用的运动信息重新用作用于视频编码的运动估计预测器的方法和装置

    公开(公告)号:US08634469B2

    公开(公告)日:2014-01-21

    申请号:US12087915

    申请日:2007-02-01

    摘要: There are provided a method and apparatus for reusing available motion information as a motion estimation predictor for video encoding. The apparatus includes an encoder for encoding an image block by determining a motion estimation predictor for the image block using motion information previously generated from an element other than the encoder, and using the motion estimation predictor in a motion estimation process to generate a motion vector for the image block. The motion estimation predictor is used in place of at least one predictor otherwise used in the motion estimation process. The at least one predictor is any of a search window predictor, a temporal predictor, and a block type predictor.

    摘要翻译: 提供了一种用于将可用的运动信息重新用作用于视频编码的运动估计预测器的方法和装置。 该装置包括编码器,用于通过使用先前从编码器之外的元素生成的运动信息确定图像块的运动估计预测器,并且在运动估计处理中使用运动估计预测器来生成运动矢量 图像块。 使用运动估计预测器代替否则在运动估计过程中使用的至少一个预测器。 所述至少一个预测器是搜索窗口预测器,时间预测器和块类型预测器中的任何一个。

    Method and apparatus for complexity scalable video encoding and decoding
    9.
    发明授权
    Method and apparatus for complexity scalable video encoding and decoding 有权
    用于复杂可伸缩视频编码和解码的方法和装置

    公开(公告)号:US08467459B2

    公开(公告)日:2013-06-18

    申请号:US11665302

    申请日:2005-10-12

    摘要: There are provided scalable complexity video decoder and encoders for respectively decoding and encoding a video bitstream. A scalable complexity video decoder includes a first combiner, a second combiner, and a deblocking filter. The first combiner is for combining full resolution motion compensated predictions and decoded upsampled base layer residuals to form reconstructed upsampled base layer pictures for display without any deblocking operations applied thereto. The second combiner, in signal communication with the first combiner, is for combining the reconstructed upsampled base layer pictures with decoded enhancement layer residuals to form reconstructed full resolution enhancement layer pictures. The deblocking filter, in signal communication with the second combiner, is for performing deblocking operations on only the reconstructed full resolution enhancement layer pictures to output filtered reconstructed full resolution enhancement layer pictures for display.

    摘要翻译: 提供了用于分别解码和编码视频比特流的可扩展复杂度视频解码器和编码器。 可扩展复杂度视频解码器包括第一组合器,第二组合器和去块滤波器。 第一组合器用于组合全分辨率运动补偿预测和解码的上采样基层残差,以形成用于显示的重建的上采样基层图像,而不施加任何去块操作。 与第一组合器进行信号通信的第二组合器用于将重构的上采样的基本层图像与解码的增强层残差组合以形成重建的全分辨率增强层图像。 与第二组合器进行信号通信的去块滤波器用于仅对重建的全分辨率增强层图像执行解块操作,以输出用于显示的滤波的重建全分辨率增强层图像。

    Method and apparatus for detection and concealment of reference and non-reference video frames
    10.
    发明授权
    Method and apparatus for detection and concealment of reference and non-reference video frames 有权
    用于检测和隐藏参考和非参考视频帧的方法和装置

    公开(公告)号:US08428147B2

    公开(公告)日:2013-04-23

    申请号:US11988073

    申请日:2006-06-06

    IPC分类号: H04N7/12

    摘要: There are provided method and apparatus for detecting and concealing reference and non-reference video frames. A video decoder includes an entropy decoder, an error detector, and an error concealer. The entropy decoder is for decompressing a video bitstream intended to have a fixed frame rate and parsing the decompressed video bitstream to find picture order counts for frames of the decompressed video bitstream. The error detector is for determining that a particular frame of the decompressed video bitstream is missing based upon the picture order counts. The error concealer is for concealing the particular frame. The method is accomplished by decompressing and parsing the video bitstream to find picture order counts for frames of the decompressed video bitstream and then determining that a particular frame of the decompressed video bitstream is missing based upon comparison of their associated picture order counts, and then concealing that particular frame.

    摘要翻译: 提供了用于检测和隐藏参考和非参考视频帧的方法和装置。 视频解码器包括熵解码器,误差检测器和错误遮蔽器。 熵解码器用于解压缩旨在具有固定帧速率的视频比特流,并解析解压缩的视频比特流以找到解压缩的视频比特流的帧的图像顺序计数。 误差检测器用于基于图像顺序计数来确定解压缩的视频比特流的特定帧丢失。 错误遮盖器用于隐藏特定的框架。 该方法是通过解压缩和解析视频比特流来找到解压缩的视频比特流的帧的图像顺序计数,然后基于它们相关联的图像顺序计数的比较来确定解压缩的视频比特流的特定帧丢失,然后隐藏 那个特定的框架。