公开(公告)号：WO2007038722A3

公开(公告)日：2007-07-12

申请号：PCT/US2006037991

申请日：2006-09-27

Applicant: QUALCOMM INC ,  TIAN TAO ,  RAVEENDRAN VIJAYALAKSHMI R

Inventor： TIAN TAO ,  RAVEENDRAN VIJAYALAKSHMI R

IPC: H04N19/109 ,  H04N19/147 ,  H04N19/176 ,  H04N19/192 ,  H04N19/196 ,  H04N19/61

CPC classification number: H04N19/192 ,  H04N19/109 ,  H04N19/147 ,  H04N19/176 ,  H04N19/196 ,  H04N19/61

Abstract: This disclosure describes techniques for improving mode selection decisions during the encoding of macroblocks (or other blocks) of multimedia frames of a multimedia sequence. During motion estimation, the encoding modes for macroblocks can be determined so that a desirable encoding rate and acceptable levels of distortion (i.e., acceptable rate distortion) can be achieved. The techniques may include selecting a set of multimedia coding modes between at least two sets of possible multimedia coding modes for a macroblock of a multimedia frame based on a detail metric associated with the macroblock and mode information associated with neighboring blocks to the macroblock.

Abstract translation: 本发明描述用于在编码多媒体序列的多媒体帧的宏块（或其他块）期间改进模式选择决定的技术。 在运动估计期间，可以确定宏块的编码模式，以便可以实现期望的编码速率和可接受的失真水平（即可接受的速率失真）。 这些技术可以包括基于与宏块相关联的细节度量和与宏块的相邻块相关联的模式信息，在多媒体帧的宏块的至少两组可能的多媒体编码模式之间选择一组多媒体编码模式。

公开(公告)号：WO2006124850A3

公开(公告)日：2007-04-26

申请号：PCT/US2006018849

申请日：2006-05-15

Applicant: QUALCOMM INC ,  RAVEENDRAN VIJAYALAKSHMI R ,  CHEN PEISONG ,  TIAN TAO

Inventor： RAVEENDRAN VIJAYALAKSHMI R ,  CHEN PEISONG ,  TIAN TAO

IPC: H03M7/40

CPC classification number: H03M7/425 ,  H03M7/40

Abstract: Embodiments include systems and methods of improving processing in a decoder in a multimedia transmission system. Multimedia data may include one or more of motion video, audio, still images, or any other suitable type of audio-visual data. One embodiment includes a system and method of parsing fixed and variable length codes from a bit-wise stream of multi-media data by maintaining and reading the data in a processor aligned (e.g., word aligned) way. Another embodiment includes a system and method of decoding variable length codes, particular as received from such a variable length code using multiple levels of decoding tables to speed up decoder table lookup.

Abstract translation: 实施例包括改进多媒体传输系统中的解码器中的处理的系统和方法。 多媒体数据可以包括运动视频，音频，静止图像或任何其它合适类型的视听数据中的一个或多个。 一个实施例包括通过以处理器对齐（例如，字对准）的方式维持和读取数据来解码来自多媒体数据的逐位流的固定和可变长度代码的系统和方法。 另一实施例包括对可变长度码进行解码的系统和方法，特别是从使用多级解码表的这种可变长度码接收到的，以加速解码器表查找。

公开(公告)号：WO2007038698A2

公开(公告)日：2007-04-05

申请号：PCT/US2006037945

申请日：2006-09-27

Applicant: QUALCOMM INC ,  RAVEENDRAN VIJAYALAKSHMI R ,  BHAMIDIPATI PHANIKUMAR ,  TIAN TAO

Inventor： RAVEENDRAN VIJAYALAKSHMI R ,  BHAMIDIPATI PHANIKUMAR ,  TIAN TAO

IPC: H04N7/26 ,  H04N7/173 ,  H04N7/50

CPC classification number: H04N7/17336 ,  H04N19/107 ,  H04N19/114 ,  H04N19/132 ,  H04N19/147 ,  H04N19/17 ,  H04N19/174 ,  H04N19/176 ,  H04N19/194 ,  H04N19/577 ,  H04N19/61 ,  H04N21/23424 ,  H04N21/2343 ,  H04N21/4383 ,  H04N21/44016

Abstract: A method of processing a sequence of frames of multimedia data is presented. The method provides for progressively refreshing the image data. The method includes dynamically selecting portions of frames of the sequence with progressively increasing area to refresh, and excluding non-refreshed areas as potential reference data for other frames.

Abstract translation: 提出了一种处理多媒体数据帧序列的方法。 该方法提供逐渐刷新图像数据。 该方法包括动态地选择具有逐渐增加的区域来刷新的序列的帧的部分，并且将非刷新区域排除为其他帧的潜在参考数据。