System and method for local area image processing

Details System and method for local area image processing System and method for local area image processing

1998-04-14

1999-12-28

Johns, Andrew W.

Implements or apparatus for applying pushing or pulling force

Portable implements or apparatus for tensioning flexible...

382284, 348586, G06K 936

Patent

active

060070528

ABSTRACT:
A method of image processing and the image processor which includes providing a convolution operator having an input for receiving raw imaging data at a data rate N and a plurality of output paths M. The convolution operator provides a time (phase) delay T to the imaging data between the input and the output paths and applies the imaging data on a time delayed basis to the output paths in phased relation to their time of application to the convolution operator. The convolution operator provides a low pass filtering operation to the data to provide background information. A phase equalization circuit is provided having an input for receiving the raw imaging data at the data rate N and M output paths, one path corresponding to each output path of the convolution operator, to provide a time delay to the raw imaging data at each output path of the phase equalization circuit equal to the time (phase) delay T of the convolution operator. The background information from the convolution operator is subtracted from the raw image data from the phase equalization circuit to provide feature information. A combination of background information and the feature information is then provided. The low pass filtering operation includes providing a one or two dimensional decimation to the data and providing a one or two dimensional interpolation of the decimated data.

REFERENCES:
patent: 5140416 (1992-08-01), Tinkler
patent: 5602934 (1997-02-01), Li et al.
patent: 5710830 (1998-01-01), Holeva
patent: 5937104 (1999-08-01), Henderson et al.

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