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Image complexity based signal source real-time coding method and system

A technology of image complexity and encoding method, which is applied in the field of real-time encoding method and system based on image complexity, and can solve problems such as inability to realize real-time encoding

Active Publication Date: 2016-06-08
SPACE STAR TECH CO LTD
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  • Abstract
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  • Application Information

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Problems solved by technology

[0006] The embodiment of the present invention provides a real-time encoding method and system based on image complexity to solve the problem that the image encoding algorithm in the prior art cannot realize real-time encoding

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  • Image complexity based signal source real-time coding method and system
  • Image complexity based signal source real-time coding method and system
  • Image complexity based signal source real-time coding method and system

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Embodiment Construction

[0049]An embodiment of the present invention provides a real-time encoding method of information source of image complexity. The method includes: acquiring the encoding mode and encoding parameters of the image; Statistics, based on statistical results combined with quantization parameters and algorithm margins to set the threshold; compare the intra-frame prediction level segmentation according to the mean square error of the pixel block and the threshold for preliminary screening; in the screened frame, according to the reference frame sample in the time domain Adapt to the offset direction information and the motion vector, transformation unit, coding flag bit and other information of the current coding unit in the spatial domain to perform early termination or jumping out in inter prediction; perform texture for the coding unit determined in the intra prediction mode and the inter prediction mode Direction analysis; adjust the encoding mode and encoding parameters according...

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Abstract

The present invention discloses an image complexity based signal source real-time coding method and system. The method comprises the steps of acquiring a coding mode and coding parameters of an image; collecting statistics about coded units of all frames of image according to the coding mode and the coding parameters, and setting a threshold according to a statistic result and quantification parameters and algorithm margin; comparing intra-frame forecasted hierarchy segmentation according to mean square of a pixel block and the threshold so as to perform preliminary screening; performing advance termination or exiting in inter-frame prediction according to adaptive offset direction information of a reference frame sample in a time domain and information like a movement vector, a transform unit, a code signaling bit and so on of a current coding unit of a space domain; analyzing pattern direction of the coding unit determined in an intra-frame prediction mode and an inter-frame prediction mode; and monitoring a comparison result according to code rate and rate of the coded image so as to adjust the coding mode and the coding parameters.

Description

technical field [0001] The present application relates to the technical field of image processing, in particular to a method and system for real-time encoding of information sources based on image complexity. Background technique [0002] The current video coding standards are mainly formulated by the ITU-T and ISO / IEC organizations, among which the ITU-T organization brakes the video coding standards for real-time video communication such as H.261, H.263, and H.264, and the ISO / IEC organization The MPEG series of standards have been formulated, which are mainly used for broadcasting and television, video storage, streaming media transmission on the network, etc. These two organizations have also jointly developed some standards. For example, H.262 developed by ITU-T and MPEG-2 developed by ISO / IEC are the same video coding standard, and the H.264 standard is also included in the 10th standard of MPEG-4. In part, the latest HEVC video coding standard is also jointly formula...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/61H04N19/196H04N19/105H04N19/176H04N19/56H04N19/59H04N19/96
Inventor 李雪王喆王婷余福荣
Owner SPACE STAR TECH CO LTD
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