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Apparatus for realizing conversion from standard definition video to high definition video using 4DSP processor

A processor array and high-definition video technology, applied in high-definition television systems, high-definition color televisions, etc., can solve problems such as image distortion and general display effects, and achieve simple and convenient operation, easy function upgrades, and flexibility high effect

Inactive Publication Date: 2009-04-01
HUAZHONG UNIV OF SCI & TECH +1
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Nowadays, there are some foreign products on the market, mainly for SD DVD or other SD signal scalers, although they can upconvert SD signals such as 720P to 1080i signals, but the display effect is average, the image is distorted, and the main For end users, each user needs to add a scaler or buy a high-definition TV with scale function

Method used

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  • Apparatus for realizing conversion from standard definition video to high definition video using 4DSP processor
  • Apparatus for realizing conversion from standard definition video to high definition video using 4DSP processor
  • Apparatus for realizing conversion from standard definition video to high definition video using 4DSP processor

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Embodiment Construction

[0015] figure 1 Overall block diagram of the system shown. It includes an input module, which completes the serial-to-parallel conversion and separates the audio signal; the FPGA video input interface module, transmits the video signal to the DSP through the Link Port to realize the interface between the DSP and the input Y / UV data, and calculates and generates the line blanking signal Line number, realize the same protocol function as Link Port of DSP; DSP processor array module, realize the algorithm of the whole process from SDTV to HDTV, including difference, sharpening, brightness, chroma, contrast adjustment; FPGA video output interface module; The FPGA audio input and output interface module performs buffer processing on the audio signal and realizes the synchronous control of the output video and audio signal; the output module completes parallel-transmission conversion and SDI signal output.

[0016] figure 2 Shown is the SDI input serial-to-parallel conversion dia...

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Abstract

The invention provides a device for accomplishing change of standard definition video frequency to high definition video frequency by 4DSP processor array. The systematic device directly up-converts video frequency outputted by original standard definition digital kinescope to high definition digital video frequency signal and inputs the signal to high definition digital video tape recorder. It is characterized in that the data is processed by 4DSP constituted processor array; bilinear Interpolation can be accomplished at DSP multi-processor hardware platform, video frequency is sharpened and contrast is regulated. The system can accomplish real time conversion and up-converts video frequency file of any resolution format, and be agilely and conveniently operated, be subject to functional upgrading.

Description

technical field [0001] The invention uses a method realized by a hardware system based on a 4DSP platform to up-convert a standard-definition digital television signal into a high-definition digital television signal, and is applied in the field of broadcast television. Background technique [0002] Digitization is an inevitable trend in the development of radio and television, and high-definition television is an inevitable trend in the development of digital television. In my country, digital TV (Digital TV) includes three types: digital HDTV, digital SDTV and digital LDTV. If you use a high-definition player to play standard-definition video, SDTV digital video (720*576) will display poor image quality in high-definition television HDTV (1920*1080), and there is a situation where the aspect ratio is distorted. In the 48 years since the establishment of TV stations in my country in 1958, a large number of SDTV programs have been accumulated. There are many important and ...

Claims

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Application Information

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IPC IPC(8): H04N7/015H04N11/24
Inventor 李德华黎坚金良海黄翔朱美能刘光远关淑菊程峰罗莹李俊峰
Owner HUAZHONG UNIV OF SCI & TECH
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