公开(公告)号：US20160277766A1

公开(公告)日：2016-09-22

申请号：US15165577

申请日：2016-05-26

Applicant: GOOGLE INC.

Inventor： Yaowu Xu ,  Paul Wilkins ,  James Bankoski

IPC: H04N19/61 ,  H04N19/51 ,  H04N19/436 ,  H04N19/176 ,  H04N19/82

CPC classification number: H04N19/61 ,  H04N19/174 ,  H04N19/176 ,  H04N19/436 ,  H04N19/44 ,  H04N19/51 ,  H04N19/593 ,  H04N19/82 ,  H04N19/91

Abstract: An apparatus for decoding frames of a compressed video data stream having at least one frame divided into partitions, includes a memory and a processor configured to execute instructions stored in the memory to read partition data information indicative of a partition location for at least one of the partitions, decode a first partition of the partitions that includes a first sequence of blocks, decode a second partition of the partitions that includes a second sequence of blocks identified from the partition data information using decoded information of the first partition.

Abstract translation: 一种用于对具有划分成分区的至少一个帧的压缩视频数据流的帧进行解码的装置，包括存储器和处理器，该存储器和处理器被配置为执行存储在存储器中的指令，以读取表示至少一个的分区位置的分区数据信息 分割，解码包括第一序列块的分区的第一分区，使用第一分区的解码信息对包括从分区数据信息识别的第二序列块的分区的第二分区进行解码。

公开(公告)号：US09392280B1

公开(公告)日：2016-07-12

申请号：US14158958

申请日：2014-01-20

Applicant: Google Inc.

Inventor： James Bankoski ,  Adrian Grange ,  Paul Wilkins

IPC: H04N7/12 ,  H04N19/51

CPC classification number: H04N19/00715 ,  H04N19/105 ,  H04N19/137 ,  H04N19/176 ,  H04N19/573 ,  H04N19/80

Abstract: A current block and a reference frame used to compress the current block are selected from a bitstream. The reference frame has an alternate reference block created by obtaining a preliminary alternate reference block for the current block, obtaining a predictor block that is generated based on a frame other than the current frame, and creating the alternate reference block when the difference between the two predictors is less than a threshold. The alternate reference block is created by using certain blocks from the sequence of frames that are more different from the preliminary alternate reference block than other non-selected blocks. The current block is decoded using the alternate reference block. In this way, a predictor block that is different from a golden frame predictor is made available when an existing alternate reference block is too similar to the golden frame predictor to be useful.

Abstract translation: 从比特流中选择用于压缩当前块的当前块和参考帧。 参考帧具有通过获得当前块的初步备用参考块而获得的替代参考块，获得基于除了当前帧之外的帧生成的预测块，并且当两者之间的差异 预测指标小于阈值。 通过使用与其他未选择的块更加不同于初始替代参考块的帧序列中的某些块来创建替代参考块。 使用备用参考块对当前块进行解码。 以这种方式，当现有的替代参考块与黄金帧预测器太相似时，使得与黄金帧预测器不同的预测块可用。