US 12,240,465 B2
Road deterioration diagnosing device, road deterioration diagnosing method, and recording medium
Chisato Sugawara, Tokyo (JP)
Assigned to NEC CORPORATION, Tokyo (JP)
Appl. No. 17/910,610
Filed by NEC Corporation, Tokyo (JP)
PCT Filed Mar. 12, 2021, PCT No. PCT/JP2021/010099
§ 371(c)(1), (2) Date Sep. 9, 2022,
PCT Pub. No. WO2021/200038, PCT Pub. Date Oct. 7, 2021.
Claims priority of application No. 2020-062852 (JP), filed on Mar. 31, 2020.
Prior Publication US 2023/0135985 A1, May 4, 2023
Int. Cl. G06T 7/11 (2017.01); B60W 40/06 (2012.01); G06T 7/00 (2017.01); G06V 20/56 (2022.01)
CPC B60W 40/06 (2013.01) [G06T 7/00 (2013.01); G06V 20/588 (2022.01); B60W 2420/403 (2013.01); G06T 2207/30252 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A road deterioration diagnosing device, comprising:
a memory storing instructions; and
one or more processors configured to execute the instructions to:
acquire an image capturing a road, and a date, a location, a time, and a direction in which the image is captured;
detect deterioration of a road surface shown in the acquired image;
calculate a direction of a possible shadow using the date, the location, the time and the direction acquired, the possible shadow being a shadow of a structure that may be formed on the road surface of the acquired image; and
determine a possibility of erroneous detection of the deterioration based on a direction in which the road surface deteriorates and the direction of the possible shadow.