公开(公告)号：US20130329782A1

公开(公告)日：2013-12-12

申请号：US13910995

申请日：2013-06-05

Applicant: QUALCOMM Incorporated

Inventor： Vadim SEREGIN ,  Chengjie TU ,  Jianle CHEN ,  Marta KARCZEWICZ

IPC: H04N7/26

CPC classification number: H04N19/117 ,  H04N19/159 ,  H04N19/172 ,  H04N19/187 ,  H04N19/33

Abstract: In one embodiment, a video coder for coding video data includes a processor and a memory. The processor selects a filter set from a multiple filter sets for upsampling reference layer video data based at least on a prediction operation mode for enhanced layer video data and upsamples the reference layer video data using the selected filter set. Some of the multiple filter sets have some different filter characteristics from one another, and the upsampled reference layer video data has the same spatial resolution as the enhanced layer video data. The processor further codes the enhanced layer video data based at least on the upsampled reference layer video data and the prediction operation mode. The memory stores the upsampled reference layer video data.

Abstract translation: 在一个实施例中，用于编码视频数据的视频编码器包括处理器和存储器。 处理器至少基于用于增强层视频数据的预测操作模式从多个滤波器组中选择用于上采样参考层视频数据的滤波器组，并使用所选择的滤波器组对参考层视频数据进行上采样。 多个滤波器组中的一些具有彼此具有一些不同的滤波器特性，并且上采样的参考层视频数据具有与增强层视频数据相同的空间分辨率。 处理器至少基于上采样的参考层视频数据和预测操作模式来对增强层视频数据进行编码。 存储器存储上采样的参考层视频数据。

公开(公告)号：US20130294524A1

公开(公告)日：2013-11-07

申请号：US13886210

申请日：2013-05-02

Applicant: QUALCOMM INCORPORATED

Inventor： Geert VAN DER AUWERA ,  Marta KARCZEWICZ ,  Rajan Laxman JOSHI ,  Vadim SEREGIN

IPC: H04N7/30

CPC classification number: H04N19/176 ,  H04N19/60 ,  H04N19/70

Abstract: An example method includes determining whether an encoded block of residual video data was encoded losslessly in accordance with a lossless coding mode, based on whether transform operations were skipped during encoding of the block of residual video data, and if the block of residual video data was encoded losslessly, then decoding the encoded block of residual video data according to the lossless coding mode to form a reconstructed block of residual video data, where decoding the encoded block of residual data comprises bypassing quantization and sign hiding while decoding the encoded block of residual video data, and bypassing all loop filters with respect to the reconstructed block of residual video data.

Abstract translation: 一种示例性方法包括：基于在编码残差视频数据块期间是否跳过了变换操作，确定剩余视频数据的编码块是否根据无损编码模式无损编码，并且如果剩余视频数据块是 无损地编码，然后根据无损编码模式解码残余视频数据的编码块，以形成残余视频数据的重建块，其中对编码的残留数据块进行解码包括绕过量化和符号隐藏，同时对编码的残留视频块进行解码 数据和绕过所有环路滤波器相对于重构的残留视频数据块。