Apparatus and method for recognizing subject motion using a camera

a technology of subject motion and camera, applied in image analysis, image enhancement, instruments, etc., can solve the problems of affecting the recognition performance, requiring significant computing resources, and hand shape recognition requires significant computing resources. , to achieve the effect of high speed

Inactive Publication Date: 2011-01-20
SAMSUNG ELECTRONICS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Benefits of technology

[0009]The present invention is designed to address at least the aforementioned problems and/or disadvantages and to provide at least the advantages described below. Accordingly, aspects of the present invention provide a hand motion-based input method and a hand motion recognition apparatus and method, which are robust to vario

Problems solved by technology

Consequently, disturbing factors such as a change in lighting or scale, rotational displacement, background color, or covering, may significantly degrade recognit

Method used

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  • Apparatus and method for recognizing subject motion using a camera
  • Apparatus and method for recognizing subject motion using a camera
  • Apparatus and method for recognizing subject motion using a camera

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Embodiment Construction

[0020]Various embodiments of the present invention will now be described in detail with reference to the accompanying drawings. In the following description, descriptions of well-known functions and constructions are omitted for clarity and conciseness.

[0021]The present invention provides high-speed hand motion recognition and hand motion-based input method, which is robust to various disturbing factors, and can be applied to various mobile applications, by considering only motion characteristics of a target (i.e., a subject or an object in an image) close in color to the skin, which are robust to a variety of disturbing factors like lighting and scale, by recognizing hand motions (basically, a subject's motions appearing in images) instead of hand shapes in captured images. The term “hand motion-based input” refers to using hand motion recognition results as user interfaces, which may be applied to various applications such as to view photos or play games.

[0022]FIG. 1 is a block di...

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Abstract

A method for recognizing a subject motion using a camera is provided, in which each of the previous and current image frames received from the camera is split into multiple image blocks, motion blocks are detected among the image blocks based on a difference between previous and current pixel values for each of the image frames, a motion center is detected based on positions of the motion blocks for each image frame, and the subject motion appearing in the previous and current image frames is recognized based on the motion centers of the previous and current image frames.

Description

PRIORITY[0001]This application claims priority under 35 U.S.C. §119(a) to a Korean Patent Application filed in the Korean Intellectual Property Office on Jul. 17, 2009 and assigned Serial. No. 10-2009-0065434, the entire disclosure of which is hereby incorporated by reference.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates generally to an apparatus and method for detecting a subject's motions in captured images, and more particularly, to an apparatus and method for recognizing or detecting a user's hand motions in image frames received from a mobile camera, i.e., a camera embedded in a mobile terminal.[0004]2. Description of the Related Art[0005]Mobile terminals (also known as mobile communication terminals or portable terminals), which were originally developed for voice calls, have evolved into devices that provide many different types of services to users. For example, more recently developed mobile terminals also provide data service...

Claims

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Application Information

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IPC IPC(8): G06K9/00
CPCG06K9/00355G06T7/2006G06F3/017G06T2207/30196G06T2207/10016G06T2207/10024G06T7/2033G06T7/215G06T7/246G06V40/28G06T7/20
Inventor LEE, DONG-HYUKKWON, MU-SIKKIM, JUNG-RIMHWANG, SEONG-TAEKOH, SANG-WOOKKIM, HYUN-SOO
Owner SAMSUNG ELECTRONICS CO LTD
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