Image generation method and apparatus

Details Image generation method and apparatus Image generation method and apparatus

1997-12-23

2000-01-18

Boudreau, Leo H.

Image analysis

Image transformation or preprocessing

Changing the image coordinates

382304, 382307, 345193, 345511, 345515, 345516, 711100, 711105, 711111, 711112, G06K 932

Patent

active

060163690

ABSTRACT:
An image generation apparatus of the present invention reduces the write access frequency to a plurality of memories and increases the image generation speed. The image generation apparatus divides an image zone into a plurality of blocks and assigns an address for each pixel within a block. In order to store the pixels within a shortened time, a parallel storing of the pixel shall be performed evenly at the grouping stage for storing them into respective FIFOs in accordance with the difference of the least significant bit of the address data of the pixel. In this case, the present invention bisects the binary address signal into high order address bits and low order address bits, takes an exclusive OR among the least significant bits of high and low order address bits and replace the least significant bit of the low order address bits with the result of the exclusive OR for the grouping discrimination sign. This grouping avoids the unbalanced grouping for the pixels on the border line of image by reverting the least significant bit at every another longitudinal level.

REFERENCES:
patent: 5400057 (1995-03-01), Yin
patent: 5765187 (1998-06-01), Shimizu et al.
patent: 5867593 (1999-02-01), Fukuda et al.

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