Title:
【発明の名称】連続画像内での物体の移動を検知する方法及び装置
Document Type and Number:
Japanese Patent JPH10512694
Kind Code:
A
Abstract:
Method and apparatus for processing a sequence of images to detect object movement within the sequence. Specifically, the method comprises the steps of: (a) supplying a sequence of image frames; (b) initializing a reference image that contains image information regarding stationary objects within a scene represented by the sequence of images; (c) supplying a next image frame which temporally follows the sequence of image frames; (d) comparing the next image to the reference image to produce a motion image representing motion information regarding movement of objects within the scene; (e) updating the reference image with information within the next image that represents stationary objects within the scene; and (f) repeating steps (c), (d), and (e) for each next image supplied. The method is implemented by image processing apparatus. A specific embodiment of the method and apparatus is a traffic monitoring system that identifies vehicles in varying illumination levels and eliminates erroneous identification of non-physical movement in the scene such as shadows and headlight reflections.
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Inventors:
Wixson, Lambert, Ernest
Shu, Stephen, Charles
Shu, Stephen, Charles
Application Number:
JP52227796A
Publication Date:
December 02, 1998
Filing Date:
January 17, 1996
Export Citation:
Assignee:
Sarnoff Corporation
International Classes:
H04N7/18; G06K9/32; G06T1/00; G06T1/20; G06T7/20; G08G1/04; (IPC1-7): G06T7/20; G06T1/00; G08G1/04; H04N7/18
Attorney, Agent or Firm:
Yoshiki Hasegawa (4 outside)