Granted Patent B2

US 12,266,193 · App. 18/274,898 · Granted Apr 1, 2025

Inventors: Kazuki Ogata (Tokyo, JP); Kosei Kobayashi (Tokyo, JP); Kei Yanagisawa (Tokyo, JP); Shintaro Chiku (Tokyo, JP); Yoko Tanaka (Tokyo, JP); Yuki Tsuji (Tokyo, JP); Natsumi Yokoyama (Tokyo, JP)

Assignee: NEC Corporation

G06V20/588G06T7/62G06V10/761

Abstract

Claims (52)

1. A data collection apparatus, comprising:

at least one memory configured to store instructions; and

at least one processor configured to execute the instructions to:

receive sensor data from a vehicle capable of photographing a road surface, the sensor data being acquired by a sensor mounted on the vehicle;

evaluate a goodness degree of a road surface photographing environment on a basis of the sensor data and control a transmission from the vehicle of a road surface photographed image on a basis of the goodness degree of the road surface photographing environment;

receive information on a distance between the vehicle and a preceding vehicle that is running in front of the vehicle as the sensor data;

evaluate the goodness degree of the road surface photographing environment using the information on the distance between the vehicle and the preceding vehicle;

receive a digest image created from the road surface photographed image as the sensor data; and

estimate the distance between the vehicle and the preceding vehicle on a basis of a size of an image of the preceding vehicle in the digest image.

2. The data collection apparatus according to claim 1 ,

wherein the processor is configured to execute the instructions to request the vehicle to transmit the road surface photographed image, if the goodness degree of the road surface photographing environment is not less than a predetermined threshold value.

3. The data collection apparatus according to claim 1 ,

wherein the processor is configured to execute the instructions to request the vehicle to suppress a transmission of the road surface photographed image, if the goodness degree of the road surface photographing environment is less than the redetermined threshold value.

4. The data collection apparatus according to claim 1 , wherein the processor is configured to execute the instructions to:

receive at least a portion of the road surface photographed image as the sensor data; and

evaluate the goodness degree of the road surface photographing environment according to whether or not a road surface in the road surface photographed image includes a puddle or a shadow.

5. The data collection apparatus according to claim 1 , wherein the processor is configured to execute the instructions to:

receive as a sensor data at least one of acceleration information, speed information and time information of the vehicle, and brightness information of surroundings of an imaging device; and

evaluate the goodness degree of the road surface photographing environment of the imaging device on a basis of at least one of acceleration information, speed information and time information of the vehicle and brightness information of surroundings of the imaging device.

6. An onboard apparatus connected to a camera capable of photographing an image of a road surface, the onboard apparatus comprising:

at least one memory configured to store instructions; and

at least one processor configured to execute the instructions to:

transmit sensor data for evaluating a goodness degree of a road surface photographing environment to a predetermined data collection apparatus;

transmit a road surface photographed image on a basis of a response from the predetermined data collection apparatus;

transmit information on a distance between the vehicle and a preceding vehicle that is running in front of the vehicle as the sensor data; and

transmit a digest image created from the road surface photographed image as the sensor data;

wherein the predetermined data collection apparatus is configured to evaluate the goodness degree of the road surface photographing environment using the information on the distance between the vehicle and the preceding vehicle, and

wherein the predetermined data collection apparatus is configured to estimate the distance between the vehicle and the preceding vehicle on a basis of a size of an image of the preceding vehicle in the digest image.

7. A data collection method, comprising:

receiving sensor data from a vehicle capable of photographing a road surface, the sensor data being acquired by a sensor mounted on the vehicle;

evaluating a goodness degree of a road surface photographing environment on a basis of the sensor data;

controlling a transmission from the vehicle of a road surface photographed image on a basis of the goodness degree of the road surface photographing environment;

receiving information on a distance between the vehicle and a preceding vehicle that is running in front of the vehicle as the sensor data;

evaluating the goodness degree of the road surface photographing environment using the information on the distance between the vehicle and the preceding vehicle;

receiving a digest image created from the road surface photographed image as the sensor data; and

estimating the distance between the vehicle and the preceding vehicle on a basis of a size of an image of the preceding vehicle in the digest image.

8. The data collection apparatus according to claim 2 , wherein the processor is configured to execute the instructions to:

receive at least a portion of the road surface photographed image as the sensor data; and

evaluate the goodness degree of the road surface photographing environment according to whether or not a road surface in the road surface photographed image includes a puddle or a shadow.

9. The data collection apparatus according to claim 3 , wherein the processor is configured to execute the instructions to:

receive at least a portion of the road surface photographed image as the sensor data; and

evaluate the goodness degree of the road surface photographing environment according to whether or not a road surface in the road surface photographed image includes a puddle or a shadow.

10. The data collection apparatus according to claim 1 , wherein the processor is configured to execute the instructions to:

receive at least a portion of the road surface photographed image as the sensor data; and

evaluate the goodness degree of the road surface photographing environment according to whether or not a road surface in the road surface photographed image includes a puddle or a shadow.

11. The data collection apparatus according to claim 2 , wherein

the processor is configured to execute the instructions to:

receive as a sensor data at least one of acceleration information, speed information and time information of the vehicle, and brightness information of surroundings of an imaging device; and

evaluate the goodness degree of the road surface photographing environment of the imaging device on a basis of at least one of acceleration information, speed information and time information of the vehicle and brightness information of surroundings of the imaging device.

12. The data collection apparatus according to claim 3 , wherein the processor is configured to execute the instructions to:

receive as a sensor data at least one of acceleration information, speed information and time information of the vehicle, and brightness information of surroundings of an imaging device; and

evaluate the goodness degree of the road surface photographing environment of the imaging device on a basis of at least one of acceleration information, speed information and time information of the vehicle and brightness information of surroundings of the imaging device.

Assignments (1)

Continuity (1)

References Cited (13)