Title:
THREE-DIMENSIONAL MEASUREMENT DEVICE AND THREE-DIMENSIONAL MEASUREMENT METHOD
Document Type and Number:
WIPO Patent Application WO/2011/052693
Kind Code:
A1
Abstract:
In order to obtain a three-dimensional measurement device capable of measuring the distance to and position of a subject with high accuracy, disclosed is a three-dimensional measurement device provided with: an image capturing system (10) which captures an image of a subject (5) by an image capturing element (14); a bright point extraction unit (32) which detects the subject (5) by luminances that are detected from respective images captured at different distances between the subject (5) and the image capturing system (10) and have a predetermined threshold value or more; a luminance centroid calculation unit (36) which detects luminances in each given region including a plurality of pixels around a bright point of the image, finds the luminance distribution within the given region, and finds the luminance centroid value on the basis of the luminance distribution; a luminance correction unit (38) which obtains the luminance corrected value as a result of correcting the luminance possessed by a pixel (14a) in which the luminance centroid value is detected and the luminances detected by surrounding pixels (14a) to the luminance of the luminance centroid value; and a three-dimensional detection unit (43) which finds the value of the distance to the subject (5) on the basis of the luminance corrected value and detects the position of the subject (5) on the basis of the luminance centroid value.
Inventors:
SAIGOU Tomoyasu (Room 7, Incubation Office, Bldg. 22, National University Corporation Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya-sh, Aichi 55, 〒4668555, JP)
西郷 知泰 (〒55 愛知県名古屋市昭和区御器所町 名古屋工業大学 ２２号館 インキュベーションオフィス ７号室 有限会社ミュースカイネット内 Aichi, 〒4668555, JP)
西郷 知泰 (〒55 愛知県名古屋市昭和区御器所町 名古屋工業大学 ２２号館 インキュベーションオフィス ７号室 有限会社ミュースカイネット内 Aichi, 〒4668555, JP)
Application Number:
JP2010/069208
Publication Date:
May 05, 2011
Filing Date:
October 28, 2010
Export Citation:
Assignee:
FUJI MACHINE MFG. CO., LTD (19 Chausuyama, Yamamachi Chiryu-sh, Aichi 86, 〒4728686, JP)
富士機械製造株式会社 (〒86 愛知県知立市山町茶碓山１９番地 Aichi, 〒4728686, JP)
SAIGOU Tomoyasu (Room 7, Incubation Office, Bldg. 22, National University Corporation Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya-sh, Aichi 55, 〒4668555, JP)
富士機械製造株式会社 (〒86 愛知県知立市山町茶碓山１９番地 Aichi, 〒4728686, JP)
SAIGOU Tomoyasu (Room 7, Incubation Office, Bldg. 22, National University Corporation Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya-sh, Aichi 55, 〒4668555, JP)
International Classes:
G01B11/24; G01C3/06
Attorney, Agent or Firm:
KONISHI, Tomimasa (Marunouchi Estate Bldg, 17-12 Marunouchi 2-chome, Naka-ku, Nagoya-sh, Aichi 02, 〒4600002, JP)
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