CA2068073A1 - Encoding of motion picture signal - Google Patents

Encoding of motion picture signal

Info

Publication number
CA2068073A1
CA2068073A1 CA2068073A CA2068073A CA2068073A1 CA 2068073 A1 CA2068073 A1 CA 2068073A1 CA 2068073 A CA2068073 A CA 2068073A CA 2068073 A CA2068073 A CA 2068073A CA 2068073 A1 CA2068073 A1 CA 2068073A1
Authority
CA
Canada
Prior art keywords
valid
blocks
block map
valid block
section
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA2068073A
Other languages
French (fr)
Other versions
CA2068073C (en
Inventor
Eri Murata
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
Eri Murata
Nec Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Eri Murata, Nec Corporation filed Critical Eri Murata
Publication of CA2068073A1 publication Critical patent/CA2068073A1/en
Application granted granted Critical
Publication of CA2068073C publication Critical patent/CA2068073C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
    • H04N19/98—Adaptive-dynamic-range coding [ADRC]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/20—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using video object coding

Abstract

A valid/invalid detection section 1 generates an original valid block map based on a difference between frames. The current and previous valid block maps are weighted within weight sections 2 and 3 respectively and are thereafter summed up to compose them. After isolated valid blocks are removed from the composed valid block map within a segmentation section 5, it is determined whether or not a moving object exists and the direction of the moving object is determined based on the distribution of the valid block map. If a significant movement is detected, then blocks around the object are weighted at the movement direction side. Another segmentation section 7 determines valid blocks with reference to interest blocks and neighbor blocks, and isolated invalid block section 8 removes isolated invalid blocks to generate a complete valid block map. Encoding is performed based on the complete valid block map.
CA 2068073 1991-05-08 1992-05-06 Encoding of motion picture signal Expired - Fee Related CA2068073C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP3-133540 1991-05-08
JP3133540A JPH04334188A (en) 1991-05-08 1991-05-08 Coding system for moving picture signal

Publications (2)

Publication Number Publication Date
CA2068073A1 true CA2068073A1 (en) 1992-11-09
CA2068073C CA2068073C (en) 1998-10-06

Family

ID=15107203

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2068073 Expired - Fee Related CA2068073C (en) 1991-05-08 1992-05-06 Encoding of motion picture signal

Country Status (5)

Country Link
US (1) US5258836A (en)
EP (1) EP0514053B1 (en)
JP (1) JPH04334188A (en)
CA (1) CA2068073C (en)
DE (1) DE69215577T2 (en)

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Also Published As

Publication number Publication date
US5258836A (en) 1993-11-02
DE69215577T2 (en) 1997-06-12
EP0514053A3 (en) 1993-06-09
CA2068073C (en) 1998-10-06
DE69215577D1 (en) 1997-01-16
EP0514053B1 (en) 1996-12-04
JPH04334188A (en) 1992-11-20
EP0514053A2 (en) 1992-11-19

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