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US 12,746,878 B2Granted
Digital rear mirror control apparatus of a vehicle and control method thereof
AssigneeThinkware Corporation
InventorsSung Rak Choi, Tae Jin Kim, Ho Kwan Lee, Hyun Chul Cho
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Abstract
Provided is a digital rear mirror control method of a vehicle for improving a driver's visibility by considering the internal or external environment of the vehicle.
Claims13
A digital rear mirror control method of a vehicle, the method comprising:
- an image input step of receiving a vehicle exterior image from a camera disposed on the vehicle;
- an image analysis step of segmenting the input image into a plurality of regions based on a predetermined criterion;
- an illuminance measurement step of measuring a light amount from a front illuminance sensor disposed at a front of the vehicle and a light amount from a rear illuminance sensor disposed at a rear of the vehicle;
- a determination step of determining whether the input image requires correction, wherein the determination step is performed in response to a condition that the light amount measured by the rear illuminance sensor is greater than the light amount measured by the front illuminance sensor, and wherein the determination is made by comparing a brightness value of at least one of the segmented regions with a predetermined threshold range based on the measured light amounts;
- and
- an image processing step of adjusting brightness of the input image if the brightness value of the at least one of the segmented regions is out of the threshold range.
3 more elements
A digital rear mirror control apparatus of a vehicle, the apparatus comprising:
- a digital rear mirror including a mirror film that outputs a vehicle exterior image or optically reflects a rear situation of the vehicle based on an electrical signal that is selectively input thereto;
- a camera configured to capture an external environment of the vehicle;
- a front illuminance sensor disposed at a front of the vehicle and a rear illuminance sensor disposed at a rear of the vehicle;
- and
- an image processing device configured to:
- segment the image input from the camera into a plurality of regions based on a predetermined criterion;
- measure a light amount from the front illuminance sensor and a light amount from the rear illuminance sensor;
- perform a determination of whether the input image requires correction in response to a condition that the light amount measured by the rear illuminance sensor is greater than the light amount measured by the front illuminance sensor, wherein the determination is made by comparing a brightness value of at least one of the segmented regions with a predetermined threshold range based on the measured light amounts;
- and
- adjust brightness of the input image if the brightness value of the at least one of the segmented regions is out of the threshold range.
7 more elements
Dependencies are inferred from the claim text.