05-03-2020 дата публикации
Номер: US20200077076A1
Автор:
Tianfan Xue,
Jian Wang,
Jiawen Chen,
Jonathan Barron,
XUE TIANFAN,
WANG JIAN,
CHEN JIAWEN,
BARRON JONATHAN,
Xue, Tianfan,
Wang, Jian,
Chen, Jiawen,
Barron, Jonathan
Принадлежит:
Scenes can be imaged under low-light conditions using flash photography. However, the flash can be irritating to individuals being photographed, especially when those individuals' eyes have adapted to the dark. Additionally, portions of images generated using a flash can appear washed-out or otherwise negatively affected by the flash. These issues can be addressed by using a flash at an invisible wavelength, e.g., an infrared and/or ultraviolet flash. At the same time a scene is being imaged, at the invisible wavelength of the invisible flash, the scene can also be imaged at visible wavelengths. This can include simultaneously using both a standard RGB camera and a modified visible-plus-invisible-wavelengths camera (e.g., an “IR-G-UV” camera). The visible and invisible image data can then be combined to generate an improved visible-light image of the scene, e.g., that approximates a visible light image of the scene, had the scene been illuminated during daytime light conditions. 1. A device comprising:a first camera, wherein the first camera is operable to generate green image data based on green light received by the first camera, blue image data based on blue light received by the first camera, and red image data based on red light received by the first camera;a second camera, wherein the second camera is operable to generate first visible image data based on light at a first visible wavelength that is received by the second camera and first invisible image data based on light at a first invisible wavelength received by the second camera;a flash, wherein the flash is operable to emit light at the first invisible wavelength; and operating the flash, during a first period of time, to illuminate a scene with light at the first invisible wavelength;', 'operating the first camera, during the first period of time, to generate a first image of the scene, wherein the first image comprises information indicative of red, green, and blue light received from the scene; and', ...
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