Film scanner

Details Film scanner Film scanner

1997-03-03

1998-12-01

Hajec, Donald T.

Registers

Coded record sensors

Particular sensor structure

235439, 235465, G06K 0710

Patent

active

058442260

ABSTRACT:
A film scanner uses three color line sensors which scan a filmstrip line after line over the entire width of the filmstrip, while the filmstrip is fed in a lengthwise direction. While the filmstrip moves forward, photometric data is detected from the filmstrip at a lower pixel density through the line sensors with constant charge storage times. Frame number bar codes and edge positions of respective frames on the photo film are derived from the photometric data, and image data pick-up ranges of the respective frames are determined based on the frame number bar codes and the frame edge positions. Based on the photometric data, color video images simulating photo-prints of the frames are displayed with framing lines that indicate the image data pick-up range of each frame. The framing lines are manually adjustable to correct the image data pick-up range. While the filmstrip moves backward, three color image data is detected from the image data pick-up ranges at a higher pixel density through the line sensors with variable charge storage times that are determined for each frame based on the photometric data of each frame.

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patent: 5352876 (1994-10-01), Watanabe et al.
patent: 5477353 (1995-12-01), Yamasaki
patent: 5684286 (1997-11-01), Pierce
patent: 5724152 (1998-03-01), Hayashi et al.

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