System and method for image recovery
Номер патента: CA2091081A1
Опубликовано: 06-11-1993
Автор(ы): Albert D. Edgar
Принадлежит: International Business Machines Corp
Опубликовано: 06-11-1993
Автор(ы): Albert D. Edgar
Принадлежит: International Business Machines Corp
Реферат: A system and method to compensate for effects of a recording medium such as film on image data retrieved therefrom. Red, green, blue, and infrared light is sequentially transmitted through film having an image exposed therein to the system which captures corresponding images. The infrared image maps the location, boundaries and intensities of the media defects. The map is employed combinatorially with the other captured images resulting in an image from the film free of the effects of the film defects. In one embodiment the effects of the imperfections are divided out from the red, green, blue spectra in an operation dividing out the infrared image data on a pixel-by-pixel basis. In an alternate embodiment wherein the imperfections substantially prevent transmission of IR light therethrough, the IR image map of the defects is nevertheless employed with an automated fill-in algorithm more effectively utilized due to the precision with which the defect boundaries are known.
Information processing apparatus, information processing system, and information processing method for executing applications on which use permission is granted
Номер патента: US11445090B2. Автор: Kyohhei MUKAI. Владелец: Ricoh Co Ltd. Дата публикации: 2022-09-13.