公开(公告)号：US20240176970A1

公开(公告)日：2024-05-30

申请号：US18284977

申请日：2022-03-31

Applicant: DENSO WAVE INCORPORATED

Inventor： Kentaro SASAKI ,  Koji KONOSU ,  Yuichi ITO ,  Yosuke KANBE ,  Takeshi FUJISUMI ,  Yoshihiro YAMAZAKI ,  Ryohei KAGAMI

IPC: G06K7/14 ,  G06K7/10

CPC classification number: G06K7/1465 ,  G06K7/1417 ,  G06K2007/10524

Abstract: In an information reader, a first relationship information, which defines the two-dimensional area of a first information code (e.g., the position coordinates of the four corner points), is detected from a first information code image. The first information code is subjected to reading information, based on the detected first relationship information. Parameters of a learning model are then adjusted based on training data including multiple successful cases of a reading process using the first relationship information. A second information code image captured by a camera is inputted to the learning model. A second relationship information, which is an estimated value of the information that defines the two-dimensional region of the second information code, is obtained from the learning model. The information recorded in the second information code is read based on the acquired second relationship information, thus reading results being outputted.

公开(公告)号：US20190108429A1

公开(公告)日：2019-04-11

申请号：US16142730

申请日：2018-09-26

Applicant: DENSO WAVE INCORPORATED

Inventor： Yosuke KANBE ,  Soutaro TABATA ,  Masahiro HARA ,  Toshio MORIMOTO

IPC: G06K19/06 ,  G06K7/14

Abstract: A two-dimensional code that is capable of suppressing unnecessary code detection processes related to detection of a code area is provided. Among outer edges of a rectangular code area, a first edge that is composed of a plurality of types of cells arrayed in a single row is configured such that a specific pattern that is composed of an array of two or more differing cells is repeated in at least an intermediate portion. A second edge composed of the plurality of types of cells arrayed in a row such as to oppose the first edge is configured such that the specific pattern is repeated in at least an intermediate portion.