The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 03, 2009
Filed:
Feb. 23, 2005
Hiromitsu Sato, Tokyo, JP;
Keiichi Yamamoto, Tokyo, JP;
Shinji Ozawa, Yokohama, JP;
Hideo Saito, Yokohama, JP;
Hiroya Igarashi, Yokohama, JP;
Hiromitsu Sato, Tokyo, JP;
Keiichi Yamamoto, Tokyo, JP;
Shinji Ozawa, Yokohama, JP;
Hideo Saito, Yokohama, JP;
Hiroya Igarashi, Yokohama, JP;
Mitsubishi Fuso Truck and Bus Corporation, , JP;
Keio University, , JP;
Abstract
A camera for taking an image of movement of a hand, and a hand pattern switching apparatus which operates an object equipment based on the result of the image taken by the camera, having a storage unit for saving the image taken in the state that a hand does not exist in the image pickup area of the camera, as an initial image data, a differentiation unit for obtaining a difference image data between an original image data that is the image taken in the state that a hand exists in the image pickup area of the camera, and the initial image data, a luminance detection unit for obtaining an average luminance in a place close to a hand based on the image data of a place close to a hand obtained by the differentiation unit, and a processing unit for performing binary processing of the original image data by a threshold value based on the average luminance calculated by the luminance detection unit.