Image analysis – Image transformation or preprocessing – Changing the image coordinates
Patent
1995-05-31
1998-01-06
Vu, Kim
Image analysis
Image transformation or preprocessing
Changing the image coordinates
382299, 358445, 358447, 358451, G06K 942, H04N 140
Patent
active
057063699
ABSTRACT:
A resolution conversion system for real-time expansion and reduction of a first plurality of input pixels into a second plurality of output pixels. The resolution conversion system comprises a base-n counter for counting input pixels as each pixel is captured. The base-n counter has a plurality of carry out signals. Also, there is a control register for selectively enabling the carry out signals of the base-n counter based on a predetermined resolution ratio between the first plurality of input pixels and the second plurality of output pixels. The control register uses a mode bit to select either one of inserting and removing operations. An inserting logic unit is used for inserting, as indicated by the mode bit, a pixel into the plurality of input pixels upon a transition of one of the carry out signals if the carry out signals have been enabled by the control register. A removing logic unit is used for removing, as indicated by the mode bit, a pixel from the plurality of input pixels upon a transition of one of the carry out signals of the base-n counter if the carry out signals have been enabled by the control register.
REFERENCES:
patent: 3976982 (1976-08-01), Eiselen
patent: 4628534 (1986-12-01), Marshall
patent: 4841375 (1989-06-01), Nakajima et al.
patent: 4907171 (1990-03-01), Nagashima
Colwell David M.
Steiger Dianne L.
Wang Angela L.
Cray William C.
Harris Tia M.
Rockwell International Corporation
Vu Kim
Yu Philip K.
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