Title:
SIGN EVALUATION DEVICE, LEARNING DEVICE, SIGN EVALUATION METHOD, LEARNING METHOD, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2021/199557
Kind Code:
A1
Abstract:
A sign evaluation device (20) is provided with an image acquisition unit (230) and an image processing unit (240). The image acquisition unit (230) acquires an image that includes a sign to be evaluated. The image processing unit (240) processes the image so as to generate sign state information about the sign included in said image. The sign state information includes at least one of: the percentage of the sign that is missing in the image including the sign; brightness information; and the number of objects included in the image. The brightness information includes at least one of: the luminance of the sign; and the brightness difference between the sign and the area around the sign. The image processing unit (240) uses said sign state information to generate and output ease-of-recognition information.
Inventors:
MITSUI TETSUYA (JP)
Application Number:
PCT/JP2021/000308
Publication Date:
October 07, 2021
Filing Date:
January 07, 2021
Export Citation:
Assignee:
PIONEER CORP (JP)
International Classes:
G06T7/00; G08G1/09
Domestic Patent References:
| WO2019082628A1 | 2019-05-02 |
Foreign References:
| JP2017111469A | 2017-06-22 |
Other References:
DOMAN, KEISUKE ET AL. : "Traffic Sign Visibility Estimation from In-Vehicle Camera Information Using Time Series Information", IPSJ SYMPOSIUM ON IMAGE RECOGNITION AND UNDERSTANDING (MIRU), no. IS3-42, 20 July 2011 (2011-07-20), pages 1147 - 1152, XP009537132
Attorney, Agent or Firm:
HAYAMI Shinji et al. (JP)
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