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JPS5373029A - Binary sampling methid of analog facsimile signal - Google Patents

Binary sampling methid of analog facsimile signal

Info

Publication number
JPS5373029A
JPS5373029A JP14874176A JP14874176A JPS5373029A JP S5373029 A JPS5373029 A JP S5373029A JP 14874176 A JP14874176 A JP 14874176A JP 14874176 A JP14874176 A JP 14874176A JP S5373029 A JPS5373029 A JP S5373029A
Authority
JP
Japan
Prior art keywords
methid
facsimile signal
analog facsimile
binary sampling
binary
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
JP14874176A
Other languages
Japanese (ja)
Other versions
JPS5819183B2 (en
Inventor
Takashi Kawade
Yutaka Suzuki
Toru Nakagawa
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP51148741A priority Critical patent/JPS5819183B2/en
Publication of JPS5373029A publication Critical patent/JPS5373029A/en
Publication of JPS5819183B2 publication Critical patent/JPS5819183B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Image Input (AREA)
  • Facsimile Image Signal Circuits (AREA)

Abstract

PURPOSE: To remove the influence due to noise, by forecasting the value of the next sampling point from several sample value which has been sampled as binary beforehand, and varying the threshold value at the time of binalization in accordance with the forecast hitting percentage.
COPYRIGHT: (C)1978,JPO&Japio
JP51148741A 1976-12-13 1976-12-13 Binary sampling method for analog facsimile signals Expired JPS5819183B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP51148741A JPS5819183B2 (en) 1976-12-13 1976-12-13 Binary sampling method for analog facsimile signals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP51148741A JPS5819183B2 (en) 1976-12-13 1976-12-13 Binary sampling method for analog facsimile signals

Publications (2)

Publication Number Publication Date
JPS5373029A true JPS5373029A (en) 1978-06-29
JPS5819183B2 JPS5819183B2 (en) 1983-04-16

Family

ID=15459574

Family Applications (1)

Application Number Title Priority Date Filing Date
JP51148741A Expired JPS5819183B2 (en) 1976-12-13 1976-12-13 Binary sampling method for analog facsimile signals

Country Status (1)

Country Link
JP (1) JPS5819183B2 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5556764A (en) * 1978-10-24 1980-04-25 Ricoh Co Ltd Noise elimination method for picture process
JPS5556765A (en) * 1978-10-24 1980-04-25 Ricoh Co Ltd Noise elimination method for picture process
JPS5558673A (en) * 1978-10-26 1980-05-01 Oki Electric Ind Co Ltd Signal transmission system
JPS55136769A (en) * 1979-04-13 1980-10-24 Matsushita Electric Ind Co Ltd Processing method for video signal
JPS57123767A (en) * 1980-11-19 1982-08-02 Ibm Threshold processor for processing image
JPS57150275A (en) * 1981-03-11 1982-09-17 Fuji Photo Film Co Ltd Adaptive quantizer
JPS5860879A (en) * 1981-10-06 1983-04-11 Matsushita Electric Ind Co Ltd Quantizing method for picture signal

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5093710A (en) * 1973-12-21 1975-07-26

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5093710A (en) * 1973-12-21 1975-07-26

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5556764A (en) * 1978-10-24 1980-04-25 Ricoh Co Ltd Noise elimination method for picture process
JPS5556765A (en) * 1978-10-24 1980-04-25 Ricoh Co Ltd Noise elimination method for picture process
JPS6336189B2 (en) * 1978-10-24 1988-07-19 Ricoh Kk
JPS5558673A (en) * 1978-10-26 1980-05-01 Oki Electric Ind Co Ltd Signal transmission system
JPS6023543B2 (en) * 1978-10-26 1985-06-07 沖電気工業株式会社 Signal transmission method
JPS55136769A (en) * 1979-04-13 1980-10-24 Matsushita Electric Ind Co Ltd Processing method for video signal
JPS57123767A (en) * 1980-11-19 1982-08-02 Ibm Threshold processor for processing image
JPS6156669B2 (en) * 1980-11-19 1986-12-03 Intaanashonaru Bijinesu Mashiinzu Corp
JPS57150275A (en) * 1981-03-11 1982-09-17 Fuji Photo Film Co Ltd Adaptive quantizer
JPS6257139B2 (en) * 1981-03-11 1987-11-30 Fuji Photo Film Co Ltd
JPS5860879A (en) * 1981-10-06 1983-04-11 Matsushita Electric Ind Co Ltd Quantizing method for picture signal
JPS637708B2 (en) * 1981-10-06 1988-02-18 Matsushita Denki Sangyo Kk

Also Published As

Publication number Publication date
JPS5819183B2 (en) 1983-04-16

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