JPS5737988A - Television signal encoding equipment - Google Patents

Television signal encoding equipment

Info

Publication number
JPS5737988A
JPS5737988A JP11126580A JP11126580A JPS5737988A JP S5737988 A JPS5737988 A JP S5737988A JP 11126580 A JP11126580 A JP 11126580A JP 11126580 A JP11126580 A JP 11126580A JP S5737988 A JPS5737988 A JP S5737988A
Authority
JP
Japan
Prior art keywords
groups
values
difference
small
given
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
JP11126580A
Other languages
Japanese (ja)
Other versions
JPH0133994B2 (en
Inventor
Akira Hirano
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
NEC Corp
Nippon Electric Co Ltd
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP11126580A priority Critical patent/JPS5737988A/en
Publication of JPS5737988A publication Critical patent/JPS5737988A/en
Publication of JPH0133994B2 publication Critical patent/JPH0133994B2/ja
Granted 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
    • H04N19/50—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
    • H04N19/51—Motion estimation or motion compensation
    • H04N19/577—Motion compensation with bidirectional frame interpolation, i.e. using B-pictures

Abstract

PURPOSE:To perform efficient adaptive forecasting encoding by comparing levels of the picture element of the previous frame and that of existing frame and numerically expressing the difference. CONSTITUTION:The levels of the picture element of the previous frame and that of existing frame of television signals are compared and degree of the difference is divided into >=3 groups. Degrees having small difference are seperated into small groups and those having large difference are seperated into large groups. Then, one value is given to respective group according to the magnitude. That is to say, small values are given to small groups and large values are given to large groups. In this way, the numerically expressed values are integrated for picture elements within each block to obtain the evaluated values. Encoding is performed by obtaining optimum forecasting signal based on the evaluated values. Therefore, efficient adaptive forecasting encoding can be performed.
JP11126580A 1980-08-13 1980-08-13 Television signal encoding equipment Granted JPS5737988A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11126580A JPS5737988A (en) 1980-08-13 1980-08-13 Television signal encoding equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11126580A JPS5737988A (en) 1980-08-13 1980-08-13 Television signal encoding equipment

Publications (2)

Publication Number Publication Date
JPS5737988A true JPS5737988A (en) 1982-03-02
JPH0133994B2 JPH0133994B2 (en) 1989-07-17

Family

ID=14556811

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11126580A Granted JPS5737988A (en) 1980-08-13 1980-08-13 Television signal encoding equipment

Country Status (1)

Country Link
JP (1) JPS5737988A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55162683A (en) * 1979-06-07 1980-12-18 Nippon Hoso Kyokai <Nhk> Movement detection method for television picture

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55162683A (en) * 1979-06-07 1980-12-18 Nippon Hoso Kyokai <Nhk> Movement detection method for television picture

Also Published As

Publication number Publication date
JPH0133994B2 (en) 1989-07-17

Similar Documents

Publication Publication Date Title
JPS5563173A (en) Picture signal processing system
DE3270888D1 (en) Dynamic video scrambling
JPS55158784A (en) Inter-frame coding device
JPS5737988A (en) Television signal encoding equipment
ATE40026T1 (en) LOSS CORRECTION CIRCUIT FOR CORRECTING VIDEO SIGNALS DISTURBED BY LOSSES.
JPS5775061A (en) Variable magnification method for harf tone picture
JPS5580939A (en) Digital signal transmission method
JPS52117511A (en) Picture recording method and its equipment
JPS56126392A (en) Picture tracking device
JPS5471923A (en) Coding system for television signal
JPS5651159A (en) Coding method of picture information
JPS5353143A (en) Method of plant construction
JPS57112184A (en) System for processing of picture data
JPS5730463A (en) Adaptive forecasting and decoding device
JPS5324255A (en) Waveform shaping circuit
JPS568141A (en) Television image photoengraving apparatus
JPS5333519A (en) Quantization of video signal
JPS5295941A (en) Information classification
JPS57168539A (en) Coding system
JPS53137652A (en) Ccd transversal of digital coefficient type
JPS5799867A (en) Picture binary-coding method
JPS55124375A (en) Picture element unit adaptation predictive coding system for television signal
JPS57152726A (en) A/d converting circuit
JPS5471924A (en) Binary circuit
JPS53119635A (en) Correcting method for digital signal