US 2011/0299737 A1Published application

Vision-based hand movement recognition system and method thereof

AssigneeAcer Incorporated

InventorsJING-WEI WANG, CHUNG-CHENG LOU

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Abstract

A vision-based hand movement recognition system and method thereof are disclosed. In embodiment, a hand posture is recognized according to consecutive hand images first. If the hand posture matches a start posture, the system then separates the consecutive hand images into multiple image groups and calculates motion vectors of these image groups. The distributions of these motion vectors are compared with multiple three-dimensional motion vector histogram equalizations to determine a corresponding movement for each image group. For example, the corresponding movement can be a left moving action, a right moving action, an up moving action or a down moving action. Finally, the combination of these corresponding movements is defined as a gesture, and an instruction mapped to this gesture is then executed.

Claims12

Dependent claims

A vision-based hand movement recognition system, comprising:

an image receiving unit, receiving consecutive hand images, and separating said consecutive hand images into multiple image groups;
a storage unit, storing multiple instructions, multiple predefined motion vector distribution models and multiple predefined gestures, each of said predefined motion vector distribution models corresponding to a predefined movement, and each of said predefined gestures corresponding to one of said instructions;
a motion vector calculation unit, calculating motion vectors of each of said image groups;
a movement determination unit, comparing distribution of motion vectors of each of said image groups with said predefined motion vector distribution models, to determine a corresponding movement for each of said image groups from said predefined movements;
a gesture recognition unit, comparing combination of said corresponding movements of said image groups with said predefined gestures, to determine a selected instruction from said instructions;
and
an instruction execution unit, executing said selected instruction.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 12/793,686Filed 4 Jun 2010
Published: 8 Dec 2011
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

G06F 3/0304
Arrangements for converting the position or the displacement of a member into a coded form: detection arrangements using opto-electronic means
G06F 3/017
Input arrangements or combined input and output arrangements for interaction between user and computer: gesture based interaction, e.g. based on a…
G06V 40/28
Movements or behaviour, e.g. gesture recognition: recognition of hand or arm movements, e.g. recognition of deaf sign language
G06F
Computing and data processing