Title:
TWO-DIMENSIONAL CODE READER AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2012/014265
Kind Code:
A1
Abstract:
Disclosed is a technology for specifying each area to be identified in an image. Specifically disclosed are a two-dimensional code reader and program that generate (S108) edge images based on obtained images (original images), extract (S110) candidate regions within these edge images, determine (S120, S122) whether or not the extracted candidate regions are valid, determine (S128) whether or not characteristic patterns are included in each corresponding region in the original image that corresponds to the candidate region that was determined to be valid, and then detects (S130) two-dimensional code regions within original images. In addition, the two-dimensional code reader and program repeatedly implement (S108-S290) generation of edge images based on conversion conditions that correspond to the applicable order among a plurality of conversion condition types in a pre-set order, detection of candidate regions among the generated edge images, determination of whether or not the extracted candidate regions are valid, determination of whether or not characteristic patterns are included in the corresponding regions in the original images that correspond to valid candidate regions, and detection of two-dimensional code regions.
Inventors:
ENDO, Hiroyuki (Lions hills Takamine 5-bankan 108, 106-2 Yagotofujimi, Showa-ku, Nagoya-sh, Aichi 12, 〒4660812, JP)
遠藤 広行 (〒12 愛知県名古屋市昭和区八事富士見１０６番地２ ライオンズヒルズ高峯５番館１０８ Aichi, 〒4660812, JP)
遠藤 広行 (〒12 愛知県名古屋市昭和区八事富士見１０６番地２ ライオンズヒルズ高峯５番館１０８ Aichi, 〒4660812, JP)
Application Number:
JP2010/005361
Publication Date:
February 02, 2012
Filing Date:
August 31, 2010
Export Citation:
Assignee:
SHIFT CO. LTD. (FLEZIOLA 7th Floor, 3-19-5 Marunouchi, Naka-k, Nagoya-shi Aichi 02, 〒4600002, JP)
株式会社シフト (〒02 愛知県名古屋市中区丸の内３－１９－５ ＦＬＥＺＩＯＬＡ ７Ｆ Aichi, 〒4600002, JP)
ENDO, Hiroyuki (Lions hills Takamine 5-bankan 108, 106-2 Yagotofujimi, Showa-ku, Nagoya-sh, Aichi 12, 〒4660812, JP)
株式会社シフト (〒02 愛知県名古屋市中区丸の内３－１９－５ ＦＬＥＺＩＯＬＡ ７Ｆ Aichi, 〒4600002, JP)
ENDO, Hiroyuki (Lions hills Takamine 5-bankan 108, 106-2 Yagotofujimi, Showa-ku, Nagoya-sh, Aichi 12, 〒4660812, JP)
International Classes:
G06K7/10
Attorney, Agent or Firm:
KONISHI, Kay et al. (Tokkyo Gyomu Hojin Nichiei Kokusai Tokkyo Jimusho, Yusen Iwamotocho Bldg. 8th Floor 3-3, Iwamoto-cho 2-chome, Chiyoda-k, Tokyo 32, 〒1010032, JP)
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Claims:
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