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Coding and/or decoding device and method for editting information data

A technology for editing information and information data, which is applied in the direction of electronic editing of digital analog information signals, image coding, image data processing, etc., and can solve problems such as poor unidirectional motion prediction.

Inactive Publication Date: 2003-10-01
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, compared with motion compensated prediction (bidirectional prediction) for predicting adjacent frames of a frame to be intra-coded, unidirectional motion prediction is not superior from the viewpoint of coding efficiency

Method used

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  • Coding and/or decoding device and method for editting information data
  • Coding and/or decoding device and method for editting information data
  • Coding and/or decoding device and method for editting information data

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Embodiment Construction

[0060] The following will refer to Figure 1 to Figure 16 An exemplary embodiment is described in which the device for encoding and / or decoding information data according to the invention is applied to a digital VCR.

[0061] figure 1 A device for encoding information data according to the invention is represented in block diagram form.

[0062] Such as figure 1 As shown, the encoding apparatus compresses digital component video data (Y, R-Y, B-Y: hereinafter simply referred to as video data) Dv, encodes compressed video data for recording, and uses the encoded video data as encoded Data is recorded on a recording medium such as magnetic tape.

[0063] Such as figure 1 As shown, the encoding device includes a motion compensation processing circuit 1, which is used to perform motion compensation on the input video data Dv optionally in a unidirectional or bidirectional predictive motion compensation mode; a data compression processing circuit 2, which is used to compress th...

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Abstract

Apparatus for encoding and decoding informational data in which a predictive motion compensation technique is selected based on editing information. The editing information is added to the encoding information. Wherein a motion compensation processing circuit (1) comprises unidirectional and bidirectional motion compensation predicting means (14) and (14, 15, 16); A first switching circuit (17) for compensating the prediction data (DSr), (Dt). A data compression processing circuit (2) includes a synthesizing circuit to synthesize encoded data (dv) with motion vector data (V1 and V2) and editing information (Sh).

Description

technical field [0001] The present invention relates to an apparatus and method for encoding and / or decoding information data, wherein image information is compressed by a motion compensation predictive coding system and recorded on a recording medium such as a magnetic tape, and the compressed The information is decoded by the motion compensation predictive decoding system to restore the original image information. Background technique [0002] Usually in TV broadcasting or VCR (Video Recorder), the recorded motion pictures are processed into a series of coherent still pictures. For example, in NTSC broadcasting, a moving picture is provided in a manner of continuously broadcasting 29.97 still pictures per second (a still picture is called a frame). [0003] The time interval between each frame is as short as about 0.03 seconds, so that the correlation between the previous frame and the subsequent frame is very high. Therefore, when compressing a moving picture, if the mo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/91G06T9/00G11B27/032G11B27/036H03M7/36H04N5/7826H04N5/92H04N5/926H04N7/52H04N19/114H04N19/162H04N19/423H04N19/50H04N19/503H04N19/51H04N19/577H04N19/61H04N19/625H04N19/70H04N19/91H04N21/236H04N21/434
CPCG11B27/032G11B27/036G11B2220/90H04N5/78266H04N5/9261H04N21/236H04N21/434H04N19/577
Inventor 村上芳弘
Owner SONY CORP