Efficient detection of constant regions of an image

Details Efficient detection of constant regions of an image Efficient detection of constant regions of an image

2008-09-23

2008-09-23

Bhatnagar, Anand (Department: 2624)

Image analysis

Pattern recognition

Feature extraction

C358S448000, C382S201000, C382S216000

Reexamination Certificate

active

11368656

ABSTRACT:
A technique that improves image analysis efficiency by reducing the number of computations needed to detect constant regions. Constant region detection according to the present techniques includes determining whether an image analysis window at a current position contains a constant region by analyzing a new line of pixels in the image analysis window if a pixel at a predetermined location in the image analysis window in the current position has a value equal to a pixel at the predetermined location from a previous position of the image analysis window. Analyzing only the new line of pixels saves the computational time that would otherwise go into analyzing all of the pixels in the image analysis window.

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