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Video monitoring image display method based on three-dimensional images

A technology for video surveillance and image display, applied in image communication, image reproducer using projection device, image reproducer using cathode camera tube, etc., can solve the problem of occupying CPU time, graphics card not supporting YUV image, reducing display performance, etc. problems, to reduce the burden

Inactive Publication Date: 2014-02-26
广东本致数码科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, since most manufacturers can only provide decoded video data in YUV format for video decoding, and graphics cards do not support the display of YUV images, the usual practice is to convert YUV data into RGB data and then display them. The conversion is done in the CPU, so it will take up a lot of CPU time and reduce the display performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Based on the three-dimensional image video monitoring image display method, the decoded YUV image is input to the graphics card through the multi-texture interface of OpenGL, and the graphics card GPU is programmed with a coloring language, and the graphics card GPU converts the texture of the YUV image into an RGB image on the display using the conversion rate. on display. Create multiple textures through the OpenGL interface, and input the YUV video to the graphics card through triple textures. Said program the GPU with shading voice, then compile the link, and let the graphics card enable programming. The graphics card takes out the YUV data in the texture, and then converts the YUV data into RGB data according to a conversion algorithm, and then displays them.

Embodiment 2

[0015] The method for displaying images based on three-dimensional image video monitoring includes: inputting decoded YUV images to a graphics card through an OpenGL interface; programming the graphics card GPU with a coloring language; converting the YUV images into RGB images for display on a display by the graphics card GPU. The YUV data after video decoding is directly input to the graphics card, and the GPU of the graphics card is used to convert the data in the YUV format into the RGB format used by the graphics card for display, thereby reducing the burden on the CPU. With the development of high-definition video equipment, the video data is getting larger and larger, and the performance of video format conversion in the CPU is becoming more and more prominent. Therefore, freeing the CPU and letting the GPU of the graphics card do video format conversion can solve this problem very well. question. The specific method is: input the decoded YUV image to the graphics card ...

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PUM

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Abstract

The invention relates to the technical field of camera monitoring, and relates to a video monitoring image display method based on three-dimensional images. A decoded YUV image is input to a graphics card through a multiple texture interface of an OpenGL, a GPU of the graphics card is programmed by using a shading language, and the GPU of the graphics card uses a conversion rate to convert the texture of the YUV image into an RGB image to be displayed on a display. The time of a CPU is not occupied greatly, and the display performance is improved.

Description

technical field [0001] The invention relates to the technical field of camera monitoring. Background technique [0002] Video image processing is the core component of the video surveillance system, and the processing of video display is the core of the core. At present, since most manufacturers can only provide decoded video data in YUV format for video decoding, and graphics cards do not support the display of YUV images, the usual practice is to convert YUV data into RGB data and then display them. The conversion is done in the CPU, so it will take up a lot of CPU time and reduce display performance. Contents of the invention [0003] In order to overcome at least one defect described in the above-mentioned prior art, the present invention provides a three-dimensional image-based video surveillance image display method, which uses the GPU of the graphics card to convert the data in the YUV format into the RGB format used by the graphics card for display, thereby reduci...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N11/20H04N7/18
Inventor 伍俪璇刘世艳金涛刘文江朱炜湛
Owner 广东本致数码科技有限公司
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