DE-102025145675-A1 - Camera system, control method, electronic device and storage medium

DE102025145675A1DE 102025145675 A1DE102025145675 A1DE 102025145675A1DE-102025145675-A1

Abstract

From the present disclosure, a camera system, a control method, an electronic device, and a storage medium are known. The camera system comprises: a detection module used to detect brightness information from an image captured by a camera; a determination module used to determine a brightness value of the image depending on the brightness information; and a scene configuration module used to configure an exposure time of the camera depending on the brightness value, wherein the exposure time of the camera is inversely related to the brightness value.

Inventors

Genben Sun
Chuyang Hong
Cailing XU

Assignees

Faurecia Clarion Electronics (Fengcheng) Company Limited
Faurecia Clarion Electronics (Xiamen) Co., Ltd.

Dates

Publication Date: 20260513
Application Date: 20251106
Priority Date: 20241113

Claims (10)

Camera system comprising: a capture module used to capture brightness information from an image captured by a camera; a determination module used to determine a brightness value of the image based on the brightness information; a scene configuration module used to configure an exposure time of the camera based on the brightness value, wherein the exposure time of the camera is negatively related to the brightness value.
Camera system according to Claim 1 , wherein the scene configuration module is used to configure the camera's exposure time as a first exposure time in response to a brightness value greater than or equal to a first brightness threshold; to configure the camera's exposure time as a second exposure time in response to a brightness value less than the first brightness threshold and greater than a second brightness threshold, where the first exposure time is shorter than the second exposure time; and to configure the camera's exposure time as a third exposure time in response to a brightness value less than or equal to the second brightness threshold, where the second exposure time is shorter than the third exposure time.
Camera system according to Claim 1 , where the scene configuration module is used to configure the camera's exposure time depending on the brightness value and vehicle speed of the vehicle in which the camera is located.
Camera system according to Claim 3 , using the scene configuration module to In response to the fact that the vehicle speed is greater than a first vehicle speed and less than a second vehicle speed, and the brightness value is less than or equal to a second brightness threshold, configure the camera's exposure time as a third exposure time.
Camera system according to Claim 4 , wherein the scene configuration module is used to configure the camera's exposure time as a fourth exposure time, where the fourth exposure time is greater than or equal to the second exposure time and shorter than the third exposure time, in response to the brightness value being less than or equal to a third brightness threshold and the vehicle's speed being less than or equal to the first vehicle speed; and to configure the camera's exposure time as a fifth exposure time, where the fourth exposure time is shorter than the fifth exposure time.
Camera system according to one of the Claims 1 until 5 , where the determination module is used to statistically record pixel distribution data of the image depending on the brightness information and to determine the brightness value of the image depending on the pixel distribution data.
Camera system according to one of the Claims 1 until 5 , where the camera system is used in an electronic mirror system of a vehicle.
A control method for a camera, comprising: acquiring brightness information from an image captured by a camera and determining a brightness value of the image depending on the brightness information; and configuring an exposure time of the camera depending on the brightness value, wherein the exposure time of the camera is in a negative relationship with the brightness value.
Procedure according to Claim 8 , wherein configuring the camera's exposure time depending on the brightness value includes: configuring, in response to the brightness value being greater than or equal to a first brightness threshold, the camera's exposure time as a first exposure time; configuring, in response to the brightness value being less than the first brightness threshold and greater than a second brightness threshold, the camera's exposure time as a second exposure time, the first exposure time being shorter than the second exposure time; and configuring, in response to the brightness value being less than or equal to the second brightness threshold, the camera's exposure time as a third exposure time, the second exposure time being shorter than the third exposure time.
Electronic device comprising a memory and a processor, wherein the memory and the processor are coupled together; wherein the memory is used to store computer program code, the computer program code comprising computer instructions; wherein, when the processor executes the computer instructions, it causes the electronic device to execute the method according to Claim 8 or 9 to carry out.

Description

TECHNICAL AREA The present disclosure relates to the field of automotive technology, in particular to a camera system, a control method, an electronic device and a storage medium. STATE OF THE ART An electronic rearview mirror replaces the conventional external rearview mirror with a camera, with captured image information displayed on a screen inside a vehicle to show the road conditions behind the vehicle in real time, which can help a user to better observe the situation behind the vehicle. CONTENT OF THE PRESENT DISCLOSURE In the first aspect, a camera system is provided. The camera system comprises: a capture module used to capture brightness information from an image taken by a camera; a determination module used to determine a brightness value of the image based on the brightness information; and a scene configuration module used to configure the camera's exposure time based on the brightness value, with the camera's exposure time being negatively correlated with the brightness value. In some implementations, the scene configuration module is used to: configure the camera's exposure time as a first exposure time in response to a brightness value greater than or equal to a first brightness threshold; configure the camera's exposure time as a second exposure time in response to a brightness value less than the first brightness threshold and greater than a second brightness threshold, where the first exposure time is shorter than the second exposure time; and configure the camera's exposure time as a third exposure time in response to a brightness value less than or equal to the second brightness threshold, where the second exposure time is shorter than the third exposure time. In some implementations, the scene configuration module is used to configure the camera's exposure time depending on the brightness value and vehicle speed of the vehicle in which the camera is located. In some implementations, the scene configuration module is used to configure the camera's exposure time as a third exposure time in response to the vehicle speed being greater than a first vehicle speed and less than a second vehicle speed, and the brightness value being less than or equal to a second brightness threshold. In some implementations, the scene configuration module is used: in response to the brightness value being less than or equal to the second brightness threshold and the vehicle speed being greater than or equal to the second vehicle speed, to configure the camera's exposure time as a fourth exposure time, where the fourth exposure time is greater than or equal to the second exposure time and shorter than the third exposure time; and in response to the brightness value being less than or equal to a third brightness threshold and the vehicle speed being less than or equal to the first vehicle speed, to configure the camera's exposure time as a fifth exposure time, where the fourth exposure time is shorter than the fifth exposure time. In some implementations, the determination module is used to statistically capture pixel distribution data of the image depending on the brightness information and to determine the brightness value of the image depending on the pixel distribution data. In some implementations, the camera system is used in an electronic mirror system of a vehicle. A second aspect involves providing a control procedure for a camera. This control procedure includes: acquiring brightness information from an image captured by the camera and determining a brightness value for the image based on this brightness information; and configuring the camera's exposure time based on the brightness value, with the exposure time being inversely related to the brightness value. In some implementations, configuring the camera's exposure time based on the brightness value includes: configuring the camera's exposure time as a first exposure time in response to a brightness value greater than or equal to a first brightness threshold; configuring it as a first exposure time in response to a brightness value less than the first brightness threshold. If the brightness threshold is greater than a second brightness threshold, configure the camera's exposure time as a second exposure time, with the first exposure time being shorter than the second exposure time; and configure, in response to the brightness value being less than or equal to the second brightness threshold, the camera's exposure time as a third exposure time, with the second exposure time being shorter than the third exposure time. In some implementations, configuring the camera's exposure time depending on the brightness value includes: configuring the camera's exposure time depending on the brightness value and the vehicle speed of the vehicle in which the camera is located. In some implementations, configuring the camera's exposure time depending on the brightness value and vehicle speed of the vehicle in which the camera is located involves configuring, in re