Precise color images a high-speed color video camera system with three intensified sensors

Sachio Oki; Masafumi Yamakawa; Susumu Gohda; Takeharu Goji Etoh

doi:10.1117/12.350509

22 June 1999 Precise color images a high-speed color video camera system with three intensified sensors

Sachio Oki, Masafumi Yamakawa, Susumu Gohda, Takeharu Goji Etoh

Proceedings Volume 3516, 23rd International Congress on High-Speed Photography and Photonics; (1999) https://doi.org/10.1117/12.350509
Event: Twenty-Third International Congress on High-Speed Photography and Photonics, 1998, Moscow, Russian Federation

Abstract

High speed imaging systems have been used in a large field of science and engineering. Although the high speed camera systems have been improved to high performance, most of their applications are only to get high speed motion pictures. However, in some fields of science and technology, it is useful to get some other information, such as temperature of combustion flame, thermal plasma and molten materials. Recent digital high speed video imaging technology should be able to get such information from those objects. For this purpose, we have already developed a high speed video camera system with three-intensified-sensors and cubic prism image splitter. The maximum frame rate is 40,500 pps (picture per second) at 64 X 64 pixels and 4,500 pps at 256 X 256 pixels with 256 (8 bit) intensity resolution for each pixel. The camera system can store more than 1,000 pictures continuously in solid state memory. In order to get the precise color images from this camera system, we need to develop a digital technique, which consists of a computer program and ancillary instruments, to adjust displacement of images taken from two or three image sensors and to calibrate relationship between incident light intensity and corresponding digital output signals. In this paper, the digital technique for pixel-based displacement adjustment are proposed. Although the displacement of the corresponding circle was more than 8 pixels in original image, the displacement was adjusted within 0.2 pixels at most by this method.

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Sachio Oki, Masafumi Yamakawa, Susumu Gohda, and Takeharu Goji Etoh "Precise color images a high-speed color video camera system with three intensified sensors", Proc. SPIE 3516, 23rd International Congress on High-Speed Photography and Photonics, (22 June 1999); https://doi.org/10.1117/12.350509

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KEYWORDS

Imaging systems

Cameras

Video

High speed cameras

Image sensors

Sensors

Calibration

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