Author:
Publisher:
ISBN:
Category : Infrared imaging
Languages : en
Pages : 632
Book Description
Targets and Backgrounds
Author:
Publisher:
ISBN:
Category : Infrared imaging
Languages : en
Pages : 632
Book Description
Publisher:
ISBN:
Category : Infrared imaging
Languages : en
Pages : 632
Book Description
Thermal Infrared Characterization of Ground Targets and Backgrounds
Author: Pieter A. Jacobs
Publisher: SPIE Press
ISBN: 9780819460820
Category : Science
Languages : en
Pages : 206
Book Description
This new edition updates the technologies that deal with the characterization of the thermal infrared radiation contrast between ground targets and backgrounds. Samples have been updated to comply with the current status of technology in sensor systems and countermeasures. New topics on mine detection and polarization have been included, and the section covering multispectral camouflage of personnel has been extended. The basic principles and meteorological parameters are presented, followed by calibration procedures, signature measurements, and data analyses.
Publisher: SPIE Press
ISBN: 9780819460820
Category : Science
Languages : en
Pages : 206
Book Description
This new edition updates the technologies that deal with the characterization of the thermal infrared radiation contrast between ground targets and backgrounds. Samples have been updated to comply with the current status of technology in sensor systems and countermeasures. New topics on mine detection and polarization have been included, and the section covering multispectral camouflage of personnel has been extended. The basic principles and meteorological parameters are presented, followed by calibration procedures, signature measurements, and data analyses.
Absolute Identification of Color for Targets Presented Against White and Colored Backgrounds
Author: Harold P. Bishop
Publisher:
ISBN:
Category : Color vision
Languages : en
Pages : 56
Book Description
The number of stimulus colors which can be absolutely identified by normal subjects when viewed against various colored backgrounds was investigated. Additive mixtures of light passed through narrow-band and Illuminant-C filters were projected onto a viewing screen by a device wich permitted independent control of target and background characteristics. The stimulus parameters of hue, luminance, purity, target size, and target shape were varied, and the effects of such factors as training and the presence of a distracting task were studied. With target luminance above background luminance, about nine hues plus white, three luminance levels, and two purity levels, are estimated to be useful for operational coding, if no more than about 30 of the possible combinations are included in the set. Under optimal working conditions and with protracted training, the maximum size of an identifiable set is estimated to be about 60. Reduction of target luminance below the luminance of a colored background was found to make identification very difficult. No significant effect of target shape was found. (Author).
Publisher:
ISBN:
Category : Color vision
Languages : en
Pages : 56
Book Description
The number of stimulus colors which can be absolutely identified by normal subjects when viewed against various colored backgrounds was investigated. Additive mixtures of light passed through narrow-band and Illuminant-C filters were projected onto a viewing screen by a device wich permitted independent control of target and background characteristics. The stimulus parameters of hue, luminance, purity, target size, and target shape were varied, and the effects of such factors as training and the presence of a distracting task were studied. With target luminance above background luminance, about nine hues plus white, three luminance levels, and two purity levels, are estimated to be useful for operational coding, if no more than about 30 of the possible combinations are included in the set. Under optimal working conditions and with protracted training, the maximum size of an identifiable set is estimated to be about 60. Reduction of target luminance below the luminance of a colored background was found to make identification very difficult. No significant effect of target shape was found. (Author).
Visual Search Using 2-D and 3-D Targets on Complex Backgrounds Compared to Blank Backgrounds
Author: Tisha Reid
Publisher:
ISBN:
Category : Vision
Languages : en
Pages : 170
Book Description
Publisher:
ISBN:
Category : Vision
Languages : en
Pages : 170
Book Description
Targets and Backgrounds XII
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Targets and Backgrounds
Author:
Publisher:
ISBN:
Category : Infrared imaging
Languages : en
Pages : 328
Book Description
Publisher:
ISBN:
Category : Infrared imaging
Languages : en
Pages : 328
Book Description
Targets and Backgrounds IX
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Targets and Backgrounds VII
Author: Wendell R. Watkins
Publisher: Society of Photo Optical
ISBN: 9780819440655
Category : Technology & Engineering
Languages : en
Pages : 326
Book Description
Publisher: Society of Photo Optical
ISBN: 9780819440655
Category : Technology & Engineering
Languages : en
Pages : 326
Book Description
Absolute Identification of Color for Targets Presented Against White and Colored Backgrounds
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
The number of stimulus colors which can be absolutely identified by normal subjects when viewed against various colored backgrounds was investigated. Addi iv ixtures of light passed through narrow-band and Illuminant-C FILTERS WERE PRO CTED ONTO A VIEWING SCREEN BY A DEVICE WHICH PERMITTED INDEPENDENT CONTROL OF TARGET AND BACKGROUND CHARACTERISTICS. The stimulus parameters of hue, luminance, purity, target size, and target shape were varied, and the effects of such factors as training and the presence of a distracting task were studied. With target luminance above background luminance, about nine hues plus white, three luminance levels, and two purity levels, are estimated to be useful for operational coding, if no more than about 30 of the possible combinations are included in the set. Under optimal working conditions and with protracted training, the maximum size of an identifiable set is estimated to be about 60. Reduction of target luminance below the luminance of a colored background was found to make identification very difficult. No significant effect of target shape was found. (Author).
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
The number of stimulus colors which can be absolutely identified by normal subjects when viewed against various colored backgrounds was investigated. Addi iv ixtures of light passed through narrow-band and Illuminant-C FILTERS WERE PRO CTED ONTO A VIEWING SCREEN BY A DEVICE WHICH PERMITTED INDEPENDENT CONTROL OF TARGET AND BACKGROUND CHARACTERISTICS. The stimulus parameters of hue, luminance, purity, target size, and target shape were varied, and the effects of such factors as training and the presence of a distracting task were studied. With target luminance above background luminance, about nine hues plus white, three luminance levels, and two purity levels, are estimated to be useful for operational coding, if no more than about 30 of the possible combinations are included in the set. Under optimal working conditions and with protracted training, the maximum size of an identifiable set is estimated to be about 60. Reduction of target luminance below the luminance of a colored background was found to make identification very difficult. No significant effect of target shape was found. (Author).
Précis de l'uniforme général, pour les Officiers, Sous-Officiers, Grenadiers et Fusiliers de la Garde Nationale de Lyon, réglé par l'Etat-Major-Général, élus
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 4
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 4
Book Description