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Frame dropping method and system of video image

A video image and frame reduction technology, which can solve image motion freeze and reduce image frame rate by changing the field conversion of input video signal, pulse modulation TV signal transmission, and conversion of storage devices with different read and write speeds. and other problems to achieve the effect of improving the stuck phenomenon

Active Publication Date: 2013-08-28
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 dropping method and system of video image
  • Frame dropping method and system of video image
  • Frame dropping method and system of video image

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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] Such as 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, a...

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Abstract

The invention provides a frame dropping method of a video image. The frame dropping method comprises the following steps that a plurality of frame buffer caches are arranged according to the number of preset frame buffer catches; input frame images are sequentially written into the frame buffer caches, and when the last frame buffer cache is written, the frame images are written from the first frame buffer cache again; the images in the frame buffer caches are read out according to preset frame loss rules. The invention further correspondingly provides a frame dropping system of the video image. When the frame dropping system is used for conducting frame dropping processing on the video image, the blocking phenomenon of a moving image is 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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IPC IPC(8): H04N7/01H04N7/24
CPCH04N7/0127H04N7/0105
Inventor 罗虎周小鹏
Owner GUANGDONG VTRON TECH CO LTD
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