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Image-video-signal converting apparatus and method thereof

A video signal and image technology, which is applied in the field of image and video signal conversion devices, can solve problems such as multi-computing complexity, and achieve the effects of reducing costs, improving signal compression ratio, and reducing computing and storage complexity

Active Publication Date: 2010-04-28
ZHEJIANG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

So, when considering video encoding and decoding methods, consider keeping the decoder simple, even if the encoder requires more computational complexity

Method used

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  • Image-video-signal converting apparatus and method thereof
  • Image-video-signal converting apparatus and method thereof
  • Image-video-signal converting apparatus and method thereof

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Embodiment Construction

[0042] refer to figure 1 : the forward integer converter of the transforming device of the present invention comprises an input device 1, a forward transforming device 2, a scaling device 3 and an output device 4 connected in sequence, and the forward transforming device 2 is connected with a forward transform coefficient storage device 5 , the input device 1 is used to accept and store the input data of the forward integer transformation, and the forward transformation device 2 can perform forward transformation processing on the input data block of the forward integer transformer according to the forward integer transformation coefficient, and the forward transformation coefficient The storage device 5 is used to store the forward integer transform matrix coefficients, the output device 4 is used to store the data after the forward integer transform, and the scaling device 3 is arranged between the forward transform device 2 and the output device 4, and the scaling device 3....

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Abstract

The invention relates to an image and video signal converting device and method, including forward converter and converting method, or reverse converter and converting method, where the forward converter includes input device, forward converting device, zoom device and output device, all interconnected in turn, and the forward converting device is connected with forward conversion coefficient storage device, and the characteristic of the forward converter lies in that: the zoom device is arranged between the forward converting device and the output device; the reverse converter is composed ofinput device, reverse converting device, output device and reverse conversion coefficient storage device, and the characteristic of the reverse converter lies in that: the reverse converting device isconnected between the output device and the input device, the reverse conversion coefficient storage device is connected with the reverse converting device; it has the characters of simple structureandstable performance, and it is an image and video signal converting device and method that can convert video, image and forecast residual error signal of video or image.

Description

technical field [0001] The invention belongs to the technical field of image communication, and in particular relates to an image and video signal conversion device and method thereof. Background technique [0002] In the era of rapid development of image communication technology, data compression technology is one of the keys to high-quality data storage and data transmission. People have studied and applied video compression technology for more than 20 years, and H.261 has been produced in the field of communication. . Wider and wider. In video coding, the information of the coded block in the same frame image is usually used to perform intra-frame prediction on the current coded block or the information of the previously coded image is used to perform inter-frame prediction on the current coded block. Therefore, the encoding end only needs to transmit the encoding mode information, the transform and quantization coefficient of the residual of the reconstructed image blo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/26H04N7/30H04N19/126H04N19/60
Inventor 虞露湛伟权楼剑
Owner ZHEJIANG UNIV
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