Image obtaining method and apparatus

Patent metadata

Field	Value
Publication number	US-11272114-B2
Application number	US-202016875407-A
Country	US
Kind code	B2
Filing date	May 15, 2020
Priority date	Jul 31, 2017
Publication date	Mar 8, 2022
Grant date	Mar 8, 2022

Abstract

A method of obtaining an image from an image sensor provided in a vehicle includes obtaining a vehicle speed of the vehicle; adjusting a shutter speed of the image sensor; adjusting either one or both of an international organization for standardization sensitivity (ISO) of the image sensor and an aperture of the image sensor based on the vehicle speed; and obtaining the image from the image sensor based on the adjusted shutter speed and the adjusted either one or both of the ISO and the aperture.

First claim

What is claimed is:

1. A method of obtaining at least one image from an image sensor provided in a vehicle, the method comprising:
obtaining a relative velocity between the vehicle and an object;
adjusting a shutter speed of the image sensor and at least one of an international organization for standardization (ISO) sensitivity and an aperture of the image sensor based on the relative velocity;
obtaining an image according to the adjusted shutter speed of the image sensor and the adjusted at least one of the ISO sensitivity and the aperture of the image sensor;
in response to the obtaining of the image, verifying whether a speed of the vehicle is below a predetermined threshold or verifying whether the vehicle is not moving for a predetermined period of time; and
terminating an image capturing operation of the image sensor based on the speed of the vehicle being verified to be below the predetermined threshold or the vehicle being verified to not be moving for the predetermined period of time,
wherein the adjusting of the shutter speed comprises increasing the shutter speed as the relative velocity increases.

2. The method of claim 1 , wherein the terminating comprises terminating the image capturing operation of the image sensor based on the speed of the vehicle being verified to be below the predetermined threshold.

3. The method of claim 2 , wherein the terminating comprises terminating the image capturing operation of the image sensor based on the vehicle being verified to not be moving for the predetermined period of time.

4. The method of claim 1 further comprises verifying whether an additional image is requested after verifying that the vehicle is stopped.

5. A method of obtaining at least one image from an image sensor provided in a vehicle, the method comprising:
obtaining a relative velocity between the vehicle and an object;
adjusting a shutter speed of the image sensor based on the relative velocity;
verifying a brightness of an image obtained from the image sensor based on the adjusted shutter speed;
adjusting either one or both of an international organization for standardization (ISO) sensitivity and an aperture of the image sensor based on the brightness;
verifying whether a speed of the vehicle is below a predetermined threshold or verifying whether the vehicle is not moving for a predetermined period of time; and
terminating an image capturing operation of the image sensor based on the speed of the vehicle being verified to be below the predetermined threshold or the vehicle being verified to not be moving for the predetermined period of time.

6. The method of claim 5 , wherein the terminating comprises terminating the image capturing operation of the image sensor based on the speed of the vehicle being verified to be below the predetermined threshold.

7. The method of claim 5 , wherein the terminating comprises terminating the image capturing operation of the image sensor based on the vehicle being verified to not be moving for the predetermined period of time.

8. The method of claim 5 further comprises obtaining an angular velocity of the vehicle when the vehicle is turning and adjusting the shutter speed of the image sensor based on the angular velocity.

9. A method of obtaining at least one image from an image sensor provided in a vehicle, the method comprising:
obtaining a relative velocity between the vehicle and an object;
adjusting a shutter speed of the image sensor based on the relative velocity;
identifying the object based on an image obtained from the image sensor;
adjusting the shutter speed of the image sensor based on a type of the object;
verifying whether an additional image is requested after an engine of the vehicle is turned off; and
determining, based on a result of the verifying whether the additional image is requested after the engine of the vehicle is turned off, to not terminate an operation that includes repeating of the obtaining of the relative velocity and the adjusting the shutter speed based on the relative velocity,
wherein the adjusting of the shutter speed comprises increasing the shutter speed as the relative velocity increases.

10. The method of claim 9 , wherein the type of object is associated with a classification of the object to be observed from the vehicle.

11. The method of claim 10 , wherein the type of the object includes one from among a neighboring vehicle and a pedestrian.

12. The method of claim 10 further comprises adjusting either one or both of an international organization for standardization (ISO) sensitivity and an aperture of the image sensor based on a brightness of the image.

13. The method of claim 12 , wherein the adjusting either one or both of the international organization for standardization (ISO) sensitivity and the aperture of the image sensor comprises maintaining the brightness at greater than a predetermined threshold.

14. The method of claim 13 , wherein the predetermined threshold is a brightness value required for processing the image in an advanced driver assist system or an autonomous driving system.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Oh Dokwan

Classifications

• G03B7/003 Primary

  setting of both shutter and diaphragm (G03B7/02 - G03B7/22 take precedence) · CPC title

• H04N23/71

  Circuitry for evaluating the brightness variation · CPC title

• H04N23/73 Primary

  by influencing the exposure time · CPC title

• H04N23/72 Primary

  Combination of two or more compensation controls · CPC title

• H04N23/76

  by influencing the image signals · CPC title