Apparatus and method for aligning a repositionable imaging senso

Details Apparatus and method for aligning a repositionable imaging senso Apparatus and method for aligning a repositionable imaging senso

1988-08-19

1989-10-17

Ng, Jin F.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358139, H04N 336

Patent

active

048751030

ABSTRACT:
In a film video system, a repositionable imaging solid state sensor is used to generate electric signals in reponse to a photographic image for display on a video monitor. The repositionable sensor is aligned with the photographic image by locating a fixed mask between a source for illuminating the image and the sensor. Corner pixels of the sensor are identified, and the sensor is moved relative to the mask. When at least one of these corner pixels transition between a light and dark state during movement of the sensor, it is indicative of the presence of an edge of the mask. By moving the sensor and calculating the distance between edges of the mask, the sensor may be aligned with the mask. Since the mask is aligned with the photographic image, the sensor is aligned with the photographic image.

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