Method and system for adaptive video image resolution enhancemen

Details Method and system for adaptive video image resolution enhancemen Method and system for adaptive video image resolution enhancemen

1998-04-03

1999-11-23

Boudreau, Leo H.

Image analysis

Image transformation or preprocessing

Changing the image coordinates

382298, 348448, 348458, 358428, 358525, G06K 932

Patent

active

059914645

ABSTRACT:
A system (1) for enhancing the resolution of a video image by a predetermined enhancement factor is provided. System (1) generally includes an interpolation subsystem (10), a data storage module (20), and a pixel insert positioning module (30). Included within interpolation subsystem (10) are a classification module (100), a bilinear interpolation module (200), and an adaptive interpolation module (300). Classification module (100) receives the original image pixels in a specified field of the given video image and designates for each original image pixels it receives one of a plurality of predefined classifications. Based upon this classification, one of the bilinear interpolation (200) and adaptive interpolation (300) modules is selected for actuation in generating the supplementary image pixels necessary to support resolution enhancement. Adaptive interpolation module (300) employs an interpolation scheme adapted for the orientation of a given image portion detected by classification module (100) through a plurality of adaptation parameters which, once generated, may be stored within data storage module (20) to promote computational efficiency. The generated supplementary image pixels may then be inserted at the pixel insert positions generated by pixel insert positioning module (30) in accordance with the given enhancement factor to form a resolution enhanced image.

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