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Motion prediction method and video encoding method

A prediction method and prediction value technology, applied in the field of video processing, can solve problems such as affecting the decoding of video data streams, and achieve the effect of preventing the transmission of analysis errors

Active Publication Date: 2013-03-20
HFI INNOVATION INC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the delivery of parsing errors can seriously affect the decoding of the video data stream

Method used

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  • Motion prediction method and video encoding method
  • Motion prediction method and video encoding method
  • Motion prediction method and video encoding method

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Embodiment Construction

[0023] image 3 is a block diagram of the video encoder 300 according to the present invention. In one embodiment, the video encoder 300 includes a motion prediction module 302 , a subtraction module 304 , a transformation module 306 , a quantization module 308 , and an entropy coding module 310 . Video encoder 300 receives a video input and produces a data stream as output. The motion prediction module 302 performs motion prediction on the video input to generate prediction samples and prediction information. The subtraction module 304 then subtracts the predicted samples from the video input to obtain a remainder, so as to reduce the data size of the video input to the data size of the remainder. The remainder is then sent to the transform module 306 and the quantization module 308 . The transformation module 306 performs discrete cosine transformation (Discrete Cosine Transformation, DCT) on the remainder to obtain the transformation remainder. The quantization module 3...

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Abstract

The invention provides a motion prediction method. First, a plurality of motion vector predictors is obtained to be included in a candidate set for motion prediction of a current unit of a current frame. Whether the current frame is a non-reference frame which is not referred to by other frames for motion prediction is then determined. When the current frame is not the non-reference frame, any motion vector predictor corresponding to a previously coded frame is removed from the candidate set, and a motion vector of the current unit is predicted according to the motion vector predictors of the candidate set.

Description

[0001] Cross References to Related Applications [0002] The claims of this application claim priority to U.S. Provisional Application No. 61 / 295,810, filed January 18, 2010, and U.S. Provisional Application No. 61 / 326,731, filed April 22, 2010, and Both applications are hereby incorporated by reference. technical field [0003] The present invention relates to video processing, and more particularly to encoding and motion prediction of video data. Background technique [0004] Compared with past compression standards, the new H.264 compression standard for video processing can provide good video quality at lower data bit rates by adopting features such as sub-pixel accuracy and multiple references . The video compression process can generally be divided into five sub-steps: inter-prediction and intra-prediction, transform and inverse transform, quantization And inverse-quantization, loop filter, and entropy coding. The H.264 standard is widely used in applications such ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/26H04N7/50H04N19/52
Inventor 蔡玉宝傅智铭林建良黄毓文雷少民
Owner HFI INNOVATION INC