Fault-tolerant coding method based on picture adaptive frame field

A fault-tolerant coding and adaptive technology, applied in the field of fault-tolerant coding, can solve the problems of unsuitable frame image sequence coding, unsuitability and other problems

Active Publication Date: 2013-06-12
苏州联视泰电子信息技术有限公司
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Problems solved by technology

Frame-field adaptive coding itself is a method for coding field image sequences. The existing frame-field adaptive coding algorithms are designed to obtain the best quality of field image sequences without errors, and are not suitable for coding frame image sequences. , is also not suitable for use in fault-tolerant coding decision-making process

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  • Fault-tolerant coding method based on picture adaptive frame field
  • Fault-tolerant coding method based on picture adaptive frame field
  • Fault-tolerant coding method based on picture adaptive frame field

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Embodiment Construction

[0042] The error-tolerant coding method based on frame field adaptation of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0043] Such as figure 1 Shown, a kind of error-tolerant coding method based on frame field adaptation, comprises the following steps:

[0044] Perform field coding and frame coding on the original video, send the I frame in the original video using field coding, and do the following processing for each P frame in the original video:

[0045] a) Calculate the end-to-end distortion cost of the current frame using field coding, denoted as RDmode1, and correspondingly evaluate the end-to-end distortion cost of all subsequent P frames, denoted as RM1;

[0046] b) Calculate the end-to-end distortion cost of the current frame using frame coding, denoted as RDmode2, and correspondingly evaluate the end-to-end distortion cost of all subsequent P frames, denoted as RM2;

[0047] c) When simultaneously satisf...

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Abstract

The invention discloses a fault-tolerant coding method based on a picture adaptive frame field, and the method comprises the following steps of conducting field coding and frame coding on an original video, transmitting a frame I in the original video by utilizing the field coding, conducting the following treatments on each frame P in the original video: a, calculating end-to-end distortion cost of the current frame adopting the field coding, and marking the end-to-end distortion cost of the current frame as RDmode1, correspondently evaluating the end-to-end distortion cost of all subsequent frames P, and marking as RM1; b, calculating the end-to-end distortion cost of the current frame adopting the frame coding, and marking as RDmode2, correspondently evaluating the end-to-end distortion cost of all subsequent frames P; c, transmitting the current frame by adopting the frame coding when RDmode 2 is less than RDmode1 and RM2 is less than RM1, and otherwise transmitting the current frame by adopting the field coding; and d, traversing all frames P according to the steps of a, b and c. The method is simple to operate and capable of obtaining a code with good fault-tolerance property.

Description

technical field [0001] The invention relates to an error-tolerant encoding method in video streams, in particular to an error-tolerant encoding method based on frame field self-adaptation. Background technique [0002] In multimedia applications, there are various networks, devices, content representations and standards. Due to the impact of unreliable channels on image quality, error-tolerant coding has always been an important research topic. All video coding based on enhancing the fault tolerance of video streams belongs to fault-tolerant coding, which has very wide application value in fields such as mobile entertainment and mobile monitoring. [0003] The existing video error-tolerant coding algorithm researches mostly focus on frame coding, but the error-tolerant performance of frame coding itself is not as good as field coding, which limits the further improvement of image fault-tolerant ability. The existing error-tolerant coding method using field coding improves ...

Claims

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Application Information

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IPC IPC(8): H04N7/64H04N7/26H04N7/32H04N19/89
Inventor 陈耀武徐巍炜蒋荣欣周凡
Owner 苏州联视泰电子信息技术有限公司
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