US 2010/0169840 A1Published application

Method For Recognizing And Tracing Gesture

AssigneeTopseed Technology Corp.

InventorsShoei-Lai CHEN, Che-Hao HSU

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Abstract

A method for recognizing and tracing a gesture fetches a gesture image by an image sensor. The gesture image is processed for recognizing and tracing, and a corresponding action is performed according to the processed result. The gesture image is pre-processed and then a moved image is detected. The moved image is analyzed to obtain a gesture feature. When the gesture feature is corresponding to a moved gesture, a center coordinate of the moved gesture is detected and outputted to control a cursor. When the gesture feature is corresponding to a command gesture, a relevant action command is outputted. Therefore, the method provides cursor movement and command input by user gesture.

Claims13

Dependent claims

A method for recognizing and tracing a gesture to provide an image sensor (10) to fetch a gesture image, the method comprising the steps of:

(a) pre-processing the gesture image;
(b) detecting a largest moved block of the gesture image and defining the largest moved block as a gesture block;
(c) analyzing a feature of the gesture block to determine the gesture block is a moved verification gesture or a command gesture;
(d) determining whether the gesture block is successively changed to a moved gesture when the gesture block is the moved verification gesture;
(e) detecting and tracing a center coordinate of the moved gesture when the gesture block successively changes to the moved gesture, and the moved gesture does not stop moving with duration over an action time;
and
(f) outputting the center coordinate of the moved gesture and re-performing the step (a).

4 more elements

Dependencies are inferred from the claim text.