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Non feedback value interposer for filtering dynamic compensation

A technology of dynamic compensation and interpolator, applied in color TV parts, TV system parts, standard conversion and other directions, can solve problems such as no way, reduced function, unable to receive input data stream, etc.

Inactive Publication Date: 2009-11-25
ALICORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this design only needs to use a sixth-order filter 10' to achieve the purpose of saving area, because of the feedback route in the direction of its data flow, there is no way to receive unlimited data input, that is to say When the sixth-order filter 10' is occupied by the data of the feedback path, it cannot receive the new input data stream 101', so the effect of seamless (Seamless) input cannot be achieved
Such a limitation can significantly reduce the functionality of DRAMs whose data comes from irregular responses

Method used

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  • Non feedback value interposer for filtering dynamic compensation
  • Non feedback value interposer for filtering dynamic compensation
  • Non feedback value interposer for filtering dynamic compensation

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Embodiment Construction

[0062] Please refer to image 3 , is a block diagram of an embodiment of the non-feedback interpolator of the present invention. The non-feedback interpolator provided by the present invention performs interpolation of brightness and chrominance on the image block according to the interpolation operation position to be performed by the filter dynamic compensation, and in the image block Contains several integer pixel points (Pixel) (I, I', I"), and the interpolation pixel point Q of the interpolation operation position can be interpolated by the non-feedback interpolator of the present invention. As shown in the figure, the non-feedback interpolator of the present invention The interpolator includes: a horizontal filter 10, a first vertical filter unit 20, a second vertical filter unit 30, a third vertical filter unit 40, a first multiplexer 50 and a bilinear filter 60. Wherein, When performing luminance interpolation, select three integer points on the left and right of the i...

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Abstract

The invention discloses a non-feedback interpolator for filter dynamic compensation, wherein the sixth-order filter interpolation and bilinear filter interpolation share the same hardware circuit, and the brightness and chroma of an image block are determined according to an interpolation operation position Interpolation, which includes: a horizontal filter, a first vertical filter unit, a second vertical filter unit, a third vertical filter unit, a first multiplexer and a bilinear filter, wherein in each vertical filter unit The frequency delays of different filtering operations are balanced through a selector and a bypass path respectively. In this way, the interpolation calculation of the sixth-order filter and the bilinear filter can be integrated, thereby improving efficiency and saving area.

Description

technical field [0001] The invention relates to a non-feedback interpolator, in particular to a non-feedback interpolator applicable to dynamic compensation of different filtering methods. Background technique [0002] With the rapid development of audio-visual multimedia products, the compression technology of video and video has also been continuously improved. Following MPEG2, MP3, VCD, and DVD, having H.264 / AVC or MPEG4 audio-visual codec function has become the basic requirement of current multimedia products. One, due to their strong compression ratio, low bit rate, no need for complicated programs, and high ability to integrate with communication applications, they have become necessary functions and standard formats for audio-visual digital video products. Among them, the MPEG-4 standard has been adopted in wireless video communication and streaming (Stream) media applications, and due to the advantages of H.264 / AVC in compression performance, H.264 / AVC will be used ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/01H04N5/14H04N9/77H04N9/64
Inventor 林晏生
Owner ALICORP
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