Arrangement and method for processing video data

A technology of video data and processing equipment, which is applied in the field of video data processing equipment, can solve the problem that the image cannot be fully compensated, and achieve the effect of improving the quality of the output image

Inactive Publication Date: 2004-12-15
SONY CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, if the operation of compensating for the reduction amount of the high-frequency component is performed uniformly after the decoding processing step, some images to be compensated may not be sufficiently compensated

Method used

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  • Arrangement and method for processing video data
  • Arrangement and method for processing video data
  • Arrangement and method for processing video data

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Embodiment Construction

[0042] Hereinafter, the present invention will be described with reference to the accompanying drawings showing preferred embodiments of the present invention.

[0043] The present invention is generally applied to the recording / reproducing apparatus 1 having the configuration shown in the block diagram of FIG. 1 .

[0044] Referring to Fig. 1, this recording / reproducing apparatus 1 is designed to receive NTSC (National Television System Committee) video signal S1 from the outside by analog / digital (A / D) conversion circuit 2, then will be by A / D conversion circuit 2 A Video data D2 obtained by / D conversion is sent from the A / D conversion circuit 2 to the NTSC decoder 3 . NTSC decoder 3 separates luminance and color signals of NTSC video data D2 from each other, and sends this video data D3 including the separated luminance and color signals to noise reduction circuit 4 and scene change detection circuit 5 .

[0045] Referring to FIG. 2 , the noise reduction circuit 4 include...

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Abstract

The image quality of video data is remarkably improved by a video data processing device and a video data processing method according to the invention. The input video data is adaptively filtered by adaptive filter 35 at the time coding as a function of the degree of coding difficulty of image and the decoded video data is adaptively compensated by adaptive image quality correcting circuit 50 as a function of the degree of coding difficulty of image to reduce the coding noise and appropriately correct the image quality.

Description

technical field [0001] The present invention relates to a video data processing apparatus and video data processing method suitable for use in a recording / reproducing apparatus adapted to compress-encode input video data and record it on an optical disc. Background technique [0002] Compression coding conforming to the MPEG (Moving Picture Experts Group) standard is known. Using compression coding following the MPEG standard reduces the amount of video data to be processed by using spatial correlation of data in the same frame and temporal correlation of data in different frames. [0003] Therefore, a recording / reproducing apparatus compression-encodes input video data using an encoding system conforming to the MPEG standard to generate and record compression-encoded video data on an optical disc. For data reproduction, the recording / reproducing apparatus reproduces compression-coded data from an optical disc and expand-decodes the data to restore original video data. In ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/85H03M7/38H04N9/804H04N19/117H04N19/137H04N19/142H04N19/176H04N19/189H04N19/50H04N19/51H04N19/527H04N19/625H04N19/65H04N19/80H04N19/85H04N19/86H04N19/89
CPCH04N5/85H04N19/00587H04N7/26377H04N7/361H04N19/0089H04N9/8042H04N19/51H04N19/80H04N5/781
Inventor 小林博福田京子冨田真巳宫田胜成
Owner SONY CORP
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