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Frame reduction method and system for video images

A technology of video image and frame reduction, applied in image communication, by changing the field conversion of input video signal, conversion of storage devices with different read and write speeds, etc. To achieve the effect of improving the stuttering phenomenon

Active Publication Date: 2016-05-18
GUANGDONG VTRON TECH CO LTD
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Problems solved by technology

[0005] To sum up: Based on the three-frame cache reduction scheme for image frame rate, the operation of writing image data frames to the storage unit will cause frame coverage, and reading image data frames from the storage unit will read repeated frames. For static images, the human eye I feel that the image display is normal, but for moving images, the human eye feels that the image motion is severely stuck

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  • Frame reduction method and system for video images
  • Frame reduction method and system for video images
  • Frame reduction method and system for video images

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Embodiment Construction

[0022] The present invention will be described in further detail below in conjunction with the embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0023] like image 3 As shown, it is a schematic flow chart of the frame-down data of a video image in an embodiment of the present invention, including the following steps:

[0024] S31. Set multiple frame buffers according to the preset number of frame buffers;

[0025] S32. Write each frame of the input image into each of the frame buffers in sequence, and after writing into the last frame buffer, rewrite from the first frame buffer into the image;

[0026] S33. Read the image in the frame buffer according to a preset frame loss rule;

[0027] In this embodiment, considering that there is a difference in frame rate value before and after frame down, in step S31, multiple buffers are set correspondingly according to the preset number of frame buffers. Specifically, acco...

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Abstract

The present invention provides a frame reduction method of a video image, comprising the following steps: setting a plurality of frame buffers according to the preset number of frame buffers; In the frame buffer area, after writing to the last frame buffer area, rewrite the image from the first frame buffer area; read the frame buffer area according to the preset frame loss rule The image in the . Correspondingly, the present invention also provides a frame reduction system for video images. When the present invention is used to perform frame reduction processing on video images, the freezing phenomenon of moving images can be effectively improved.

Description

technical field [0001] The invention relates to the technical field of frame reduction of video images, in particular to a frame reduction method of video images and a frame reduction system of video images. Background technique [0002] The resolution of video images is getting bigger and bigger, the frame rate is getting higher and higher, and the amount of data per unit time is getting bigger and bigger. When performing image processing, it is often necessary to down-frame the video images, that is, to reduce the image frame rate from high. Common frame rates are: 30 frames / s, 25 frames / s, 50 frames / s, 56 frames / s, 60 frames / s, 70 frames / s, 72 frames / s, 75 frames / s, 85 frames / s Wait. The traditional solution for reducing the image frame rate is mainly based on three frame buffers. The following is an example of reducing the image frame rate from 85 to 30. figure 1 It is the process of writing data frames based on the technology of reducing the image frame rate of the t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/01H04N21/4402
CPCH04N7/0127H04N7/0105
Inventor 罗虎周小鹏
Owner GUANGDONG VTRON TECH CO LTD
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