Method and apparatus for reading and processing an image at a ra

Details Method and apparatus for reading and processing an image at a ra Method and apparatus for reading and processing an image at a ra

1995-11-29

2000-08-15

Au, Amelia

Image analysis

Image transformation or preprocessing

Changing the image coordinates

348 98, 348112, G06K 932

Patent

active

061048410

ABSTRACT:
An image is read by moving a line sensor relative to the image in a subsidiary scanning direction perpendicular to the direction of a pixels array of the line sensor. An image processor receives image signals from the sensor and produces an output image magnified relative to the image in accordance with a magnification ratio. The magnification ratio falls into one of n contiguous magnification ratio ranges between a reference magnification ratio and a minimum magnification ratio. The moving speed of the sensor relative to the image is set as a function of the magnification ratio such that, within each magnification ratio range i, for i=2 to n, the moving speed of the sensor decreases from a maximum speed at a lowest magnification ratio in the magnification ratio range to the maximum speed decreased by 1/i at a highest magnification ratio in the magnification ratio range, and, for i=1, the moving speed of the sensor decreases from the maximum speed at a lowest magnification ratio in the magnification ratio range to a reference speed at a highest magnification ratio in the magnification ratio range.

REFERENCES:
patent: 3564154 (1971-02-01), Camras
patent: 4394693 (1983-07-01), Shirley
patent: 4562485 (1985-12-01), Maeshima
patent: 4595281 (1986-06-01), Oushiden et al.
patent: 4679096 (1987-07-01), Nagashima
patent: 4687944 (1987-08-01), Mitsuka et al.
patent: 4853748 (1989-08-01), Okamoto et al.
patent: 4860118 (1989-08-01), Arimoto
patent: 4926489 (1990-05-01), Danielson et al.
patent: 4934821 (1990-06-01), Morton
patent: 4943870 (1990-07-01), Sugishima
patent: 4958189 (1990-09-01), Yoshida
patent: 5351138 (1994-09-01), Sasaki et al.
patent: 5430550 (1995-07-01), Hashimoto et al.

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