Title:
IMAGE PROCESSING DEVICE, IMAGE PROCESSING SYSTEM, IMAGE PROCESSING PROGRAM, AND IMAGE PROCESSING METHOD
Document Type and Number:
WIPO Patent Application WO/2021/261016
Kind Code:
A1
Abstract:
The present invention enables a subject imaged in a captured image to undergo perspective transformation on the basis of the captured image. An image processing device (2) according to the present invention performs perspective transformation of a subject having a feature of a rectangular shape in a captured image in which the subject is imaged in a state in which perspective projection has been performed, and corrects the shape of the subject imaged in the captured image. The image processing device is characterized by being formed to have: an image acquisition unit (231) for acquiring a captured image; a reference specification unit (232) for specifying, from the subject imaged in the captured image, four reference points that form a square region and the respective coordinates of the four reference points; a storage unit (22) for storing a plurality of conversion patterns for perspective transformation of the subject; a pattern selection unit (233) for selecting a conversion pattern with which to perform perspective transformation of the subject from among the plurality of conversion patterns; and a correction unit (235) for correcting the shape of the subject imaged in the captured image on the basis of the conversion pattern.
Inventors:
EBIHARA HITOSHI (JP)
Application Number:
PCT/JP2021/007707
Publication Date:
December 30, 2021
Filing Date:
March 01, 2021
Export Citation:
Assignee:
RETAIL AI INC (JP)
International Classes:
H04N5/232; G01B11/00; G06T3/00; G06T5/00; H04N7/18
Foreign References:
| JP2006047178A | 2006-02-16 | |||
| JP2005026797A | 2005-01-27 |
Attorney, Agent or Firm:
NISHIMURA Keiichi (JP)
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