Confidence interval-based high-efficiency video coding integer pixel motion estimation method

A high-efficiency video coding and confidence interval technology, applied in the field of integer pixel fast motion estimation

Inactive Publication Date: 2014-11-19
DONGHUA UNIV
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to reduce the c

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  • Confidence interval-based high-efficiency video coding integer pixel motion estimation method
  • Confidence interval-based high-efficiency video coding integer pixel motion estimation method
  • Confidence interval-based high-efficiency video coding integer pixel motion estimation method

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Embodiment Construction

[0030] In order to make the present invention more comprehensible, preferred embodiments are described in detail below with accompanying drawings. The following descriptions are only some examples of the present invention, and other implementations of the present invention can also be obtained according to these examples for those skilled in the art.

[0031] figure 1 Schematic diagram of block matching in motion estimation.

[0032] The motion estimation process of HEVC, a new generation video coding standard, guarantees a certain RD performance. However, better RD performance is obtained by increasing the coding complexity. Table 1 shows the encoding performance of the fast search sequence RaceHorsesC using H.264 / AVC and HEVC on the same experimental platform. It can be seen that although HEVC reduces the bit rate by 31.9%, the encoding time increases by 9.51 times, especially the integer pixel motion estimation time increases by 10.4 times. The technical solution provide...

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Abstract

The invention relates to a method of carrying out integer pixel quick motion estimation in low-delay main-profile high-efficiency video coding, and belongs to the field of image communication. The invention provides a confidence interval-based low-delay main-profile high-efficiency video coding (HEVC) integer pixel motion estimation method, aiming at low-delay video application mainly by using inter-frame coding. According to the method, through reducing cost function computation times, the integer pixel motion estimation time is effectively reduced, the motion estimation time is greatly reduced, and RD performance can be ensured not to be in great loss.

Description

technical field [0001] The invention relates to a method for performing integer-pixel fast motion estimation in low-delay main (hereinafter referred to as LD-Main) level high-efficiency video coding (hereinafter referred to as HEVC), and belongs to the field of image communication. Background technique [0002] The new generation of high-efficiency video coding HEVC can better meet people's increasingly higher video resolution requirements. Compared with H.264 / AVC, HEVC further improves the rate-distortion (hereinafter referred to as RD) performance of compression coding. At the same time, HEVC has higher encoding complexity, especially the encoding time of Motion Estimation (hereinafter referred to as ME) increases significantly. LD-Main grade HEVC is suitable for real-time call applications such as video conferencing and video chatting. The LD-Main configuration file stipulates that the first frame of the video sequence adopts intra-frame coding tools, and other frames con...

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Application Information

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IPC IPC(8): H04N19/513H04N19/56H04N19/563
Inventor 揭月馨刘浩王登程胡楠杨恩辉
Owner DONGHUA UNIV
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