JPS5595146A - Picture display unit - Google Patents

Picture display unit

Info

Publication number
JPS5595146A
JPS5595146A JP322179A JP322179A JPS5595146A JP S5595146 A JPS5595146 A JP S5595146A JP 322179 A JP322179 A JP 322179A JP 322179 A JP322179 A JP 322179A JP S5595146 A JPS5595146 A JP S5595146A
Authority
JP
Japan
Prior art keywords
input
display
range
display unit
intensity
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
JP322179A
Other languages
Japanese (ja)
Other versions
JPS6042964B2 (en
Inventor
Takehiko Goro
Hiroshi Sugimoto
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP54003221A priority Critical patent/JPS6042964B2/en
Publication of JPS5595146A publication Critical patent/JPS5595146A/en
Publication of JPS6042964B2 publication Critical patent/JPS6042964B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Analysing Materials By The Use Of Radiation (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Image Processing (AREA)
  • Digital Computer Display Output (AREA)

Abstract

PURPOSE: To make it possible to display efficiently a gradation range included in input information as to a range concerned, by equipping a modulating method which can set at a desire the position and range of a non-linear part of gradational data of input picture information.
CONSTITUTION: The picture display unit of a computed tomography CT unit, etc., substitutes the light exposure value of an X-ray film with an input picture signal and film density with the display intensity of a display unit. Namely, minimum and maximum input signals are made to agree with the minimum intensity and maximum one of the display unit and an input signal value showing center display intensity is adjusted to display the entire range of the input signal, so that a range concerned can freely be selected. Further, the gradation degree of a display signal can freely be selected by adjusting scale factor 9. For the purpose, input picture signal (x) is inputted to logarithmic amplifier IC1 and the input range is adjusted by resistance VR1 while scale factor (a) is also adjusted by resistance VR2; and a value corresponding to center brightness is obtained by multiplier IC8, amplified and inputted to the intensity modulation input of CRT, thereby expressing X-ray film density.
COPYRIGHT: (C)1980,JPO&Japio
JP54003221A 1979-01-13 1979-01-13 image display device Expired JPS6042964B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54003221A JPS6042964B2 (en) 1979-01-13 1979-01-13 image display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54003221A JPS6042964B2 (en) 1979-01-13 1979-01-13 image display device

Publications (2)

Publication Number Publication Date
JPS5595146A true JPS5595146A (en) 1980-07-19
JPS6042964B2 JPS6042964B2 (en) 1985-09-26

Family

ID=11551373

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54003221A Expired JPS6042964B2 (en) 1979-01-13 1979-01-13 image display device

Country Status (1)

Country Link
JP (1) JPS6042964B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58177635A (en) * 1982-04-12 1983-10-18 横河電機株式会社 Ct image display apparatus
JPS59151590A (en) * 1983-02-17 1984-08-30 Konishiroku Photo Ind Co Ltd Picture reproducing method
JPS6182279A (en) * 1984-05-21 1986-04-25 エルシント　リミテツド Window converter
US4674108A (en) * 1984-07-03 1987-06-16 Kabushiki Kaisha Toshiba Digital X-ray medical diagnostic apparatus
JPS6376077A (en) * 1986-09-19 1988-04-06 Fujitsu Ltd Image density conversion system in image processor
JPH02108176A (en) * 1988-10-17 1990-04-20 Fuji Photo Film Co Ltd Radiograph information processing method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58177635A (en) * 1982-04-12 1983-10-18 横河電機株式会社 Ct image display apparatus
JPS59151590A (en) * 1983-02-17 1984-08-30 Konishiroku Photo Ind Co Ltd Picture reproducing method
JPS6182279A (en) * 1984-05-21 1986-04-25 エルシント　リミテツド Window converter
US4674108A (en) * 1984-07-03 1987-06-16 Kabushiki Kaisha Toshiba Digital X-ray medical diagnostic apparatus
JPS6376077A (en) * 1986-09-19 1988-04-06 Fujitsu Ltd Image density conversion system in image processor
JPH02108176A (en) * 1988-10-17 1990-04-20 Fuji Photo Film Co Ltd Radiograph information processing method

Also Published As

Publication number Publication date
JPS6042964B2 (en) 1985-09-26

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