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Image interpolation method, mobile multimedia processor and multimedia player terminal

A mobile multimedia and interpolation method technology, applied in the field of image processing, can solve the problems of high hardware cost and large chip area occupied, and achieve the effect of reducing area, saving data cache and reducing cost

Active Publication Date: 2011-06-08
ANYKA (GUANGZHOU) MICROELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the embodiments of the present invention is to provide an image interpolation method, aiming to solve the problems of the existing image interpolation method that the hardware cost for B frame and S frame interpolation operations is high and the chip area is large.

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  • Image interpolation method, mobile multimedia processor and multimedia player terminal
  • Image interpolation method, mobile multimedia processor and multimedia player terminal
  • Image interpolation method, mobile multimedia processor and multimedia player terminal

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Embodiment Construction

[0027] figure 1 The implementation flow of the image interpolation method provided by the embodiment of the present invention is shown, and the details are as follows:

[0028] In step S101, read forward reference frame data and backward reference frame data;

[0029] In step S102, performing a forward interpolation operation according to the forward reference frame data and performing a backward interpolation operation according to the backward reference frame data at the same time;

[0030] In step S103, the forward prediction value obtained by the forward interpolation operation and the backward prediction value obtained by the backward interpolation operation are weighted, and then added to the system residual value to generate the final pixel value.

[0031] The image interpolation method provided by the embodiment of the present invention can also support the rotation function. Before performing the interpolation operation, the motion vector corresponding to the forwar...

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Abstract

The invention is applicable to the image processing technical field and provides an image interpolation method, mobile multimedia processor and multimedia player terminal; wherein the image interpolation method includes the following steps: reading forward reference frame data and backward reference frame data; and carrying out forward interpolation calculation according to the forward reference frame data and backward interpolation calculation according to the backward reference frame data respectively. In the invention, the forward reference frame data and backward reference frame data are respectively read in system reference buffer cache, and the forward interpolation calculation and backward interpolation calculation are carried out at the same time, thus sparing data cache for saving the forward predicted value. Compared with the previous interpolation method by interframe prediction, the invention can support frame B and frame S interpolation calculation and can effectively reduce area and effectively improve speed of interpolation.

Description

technical field [0001] The invention belongs to the technical field of image processing, and in particular relates to an image interpolation method, a mobile multimedia processor and a multimedia player terminal. Background technique [0002] At present, mobile multimedia processors are widely used in various portable electronic products, and the market has higher and higher requirements for their performance, so this puts forward higher requirements for the video processing capabilities of mobile multimedia processors. [0003] In the prior art, the method for realizing interpolation of B-frame images and S-frame images is relatively simple, wherein B-frame images refer to image frames generated by predictive coding based on forward and backward reference frames, and S-frame images refer to images based on Global Motion Compensation (Global Motion Compensation) , GMC) predictively coded image frames, but the interpolation operation of the B frame is mainly to read the forwa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/26H04N19/176H04N19/577H04N19/587
Inventor 高崇兴王晓寄卿梅胡胜发
Owner ANYKA (GUANGZHOU) MICROELECTRONICS TECH CO LTD