Method of detecting relative movement between a scene from...

Details Method of detecting relative movement between a scene from... Method of detecting relative movement between a scene from...

2006-03-14

2006-03-14

Wu, Jingge (Department: 2623)

Image analysis

Applications

Motion or velocity measuring

Reexamination Certificate

active

07013027

ABSTRACT:
A method of detecting relative movement between a scene from which radiation emanates and a matrix of pixels observing the scene and capable of detecting the radiation, each pixel of the matrix measuring contrast vector information representative of the observed scene monitors the evolution of the contrast vector information in each pixel of the matrix During a first time interval, it detects among the pixels the pixel whose magnitude vector information value is greater than the magnitude vector information value of the adjacent pixels. During a second time interval consecutive to the first time interval it detects if the magnitude vector information of the pixel whose value was at a maximum during the first time interval has decreased. It generates output signals representative of the relative movement if a decrease is detected.

REFERENCES:
patent: 5233417 (1993-08-01), Nouso
patent: 5701163 (1997-12-01), Richards et al.
patent: 2002/0071595 (2002-06-01), Pirim
patent: WO9909736 (1999-02-01), None
A New Structure of the 2-D Silicon Retina by Chung-Yu Wu, Member, IEEE and Chin-Fong Chiu, Member, IEEE IEEE Journal of Solid-State Circuits—vol. 30, n 8, Aug. 1, 1995.

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