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Content classification for multimedia processing

A multimedia and multimedia data technology, applied in the direction of selective content distribution, TV, pulse modulation TV signal transmission, etc., can solve problems such as performance changes

Active Publication Date: 2008-04-30
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The characteristics of these algorithms change significantly, resulting in wide variations in their performance (such as compression efficiency and bit rate)
The characteristics of multimedia processing using compression algorithms can vary significantly based on content, which can lead to wide variations in their performance (such as compression efficiency and bit rate)

Method used

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  • Content classification for multimedia processing
  • Content classification for multimedia processing
  • Content classification for multimedia processing

Examples

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example -M

[0044] Encoding example - MPEG

[0045] In a typical MPEG decoder, a block of pixels (e.g., a block including one or more motion vectors and a residual error component) is predictively coded with reference to a reference frame (where an intra frame or another predicted frame can serve as a reference frame) Implement decoding. FIG. 2 is a diagram illustrating a conventional MPEG-4 Simple Specification data flow, depicting frame dependencies of groups of pictures (GOPs). A GOP 10 consists of an initial I-frame 12 followed by several forward-predicted P-frames 14 . Due to the P-frame's dependency on the previous I or P-frame, the loss of any P-frame 14 may result in the loss of information that may be critical to decoding other P-frames. Loss or elimination of P-frames may result in, for example, video jitter or the decoder not being able to continue decoding until the next I-frame 16 marking the start of the next GOP.

[0046] A P-frame (or any intermediate coded segment) m...

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Abstract

An apparatus and method for processing multimedia data, such as, for example, video data, audio data, or both video and audio data for encoding utilizing a determined content classification is claimed. Processing the multimedia data includes determining complexity of multimedia data, classifying the multimedia data based on the determined complexity, and, determining a bit rate for encoding the multimedia data based on its classification. The complexity can include a spatial complexity component and a temporal complexity component of the multimedia data. The multimedia data is classified using content classifications, which are based on a visual quality value for viewing multimedia data, using the spatial complexity, the temporal complexity, or both the spatial complexity and temporal complexity.

Description

[0001] Claim of priority under 35 U.S.C § 119 [0002] This patent application claims priority under 35 U.S.C. §119(e) over Provisional Application No. 60 / 660,677, filed March 10, 2005, assigned to the assignee of this application, and is expressly incorporated herein by reference. technical field [0003] The field of the invention relates to multimedia data processing for analyzing, classifying, quantifying and representing multimedia data based on their content by means of compression algorithms. Background technique [0004] The widespread use of the Internet and wireless communications has expanded the need for multimedia services that stream media over the Internet and mobile / wireless channels. In an Internet Protocol (IP) network, multimedia data may be provided by a server and streamed by one or more wired or wireless clients. Wired connections include: dial-up, Integrated Services Digital Network (ISDN), cable, Digital Subscriber Line Protocol (collectively xDSL)...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/26H04N7/50H04N21/2343
CPCH04N19/00151H04N19/00278H04N19/00157H04N7/26053H04N7/26132H04N19/00921H04N19/00145H04N7/26154H04N21/4347H04N19/00018H04N21/2365H04N7/26031H04N19/00163H04N7/26335H04N19/00678H04N7/26138H04N7/26021H04N19/00381H04N19/00369H04N19/00781H04N19/00181H04N7/26196H04N7/26244H04N7/26143H04N19/0006H04N19/0003H04N19/002H04N7/26127H04N7/50H04N7/26898H04N7/26074H04N19/00533H04N7/2626H04N19/00284H04N19/00266H04N7/2617H04N19/00175H04N7/26271H04N7/26856H04N19/139H04N19/176H04N19/147H04N19/172H04N19/196H04N19/149H04N19/115H04N19/61H04N19/103H04N19/107H04N19/14H04N19/137H04N19/142H04N19/154H04N19/177H04N19/44H04N19/57H04N19/87H04N19/198H04N21/266H04N21/2662
Inventor 维贾雅拉克希米·R·拉韦恩德拉恩帕尼库马尔·巴米迪帕蒂戈登·肯特·沃克
Owner QUALCOMM INC
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