VEHICLE PERIPHERY MONITORING APPARATUS
First Claim
1. An apparatus for monitoring a periphery of a vehicle using an image captured by an infrared camera mounted on the vehicle, comprising:
- a temperature detector for detecting an outside temperature of the vehicle; and
a control unit, the control unit configured to;
calculate a temperature difference between the outside temperature and a surface temperature of an object estimated based on the outside temperature;
determine a luminance value of the object in the captured image by adding a luminance difference corresponding to the temperature difference to a luminance value of a background in the captured image; and
extract the object by binarizing the captured image from the infrared camera by using the luminance value of the object as a threshold value.
1 Assignment
0 Petitions
Accused Products
Abstract
Provided is a device for monitoring the surrounding area of a vehicle. The device separates and extracts an object around the vehicle in better precision from the background. The device detects the ambient temperature of the vehicle, and determines a temperature difference between the ambient temperature and an object surface temperature estimated on the basis of the ambient temperature. On the basis of the brightness value of the background of a captured image obtained by an infrared camera and a brightness difference corresponding to the temperature difference, the brightness value of the object is calculated. The captured image is binarized by using the brightness value of the object as a threshold value, and the object is extracted. Since the binary threshold value is set on the basis of the relation between the ambient temperature and the object surface temperature, the object can be separated and extracted in the better precision from the background.
25 Citations
5 Claims
-
1. An apparatus for monitoring a periphery of a vehicle using an image captured by an infrared camera mounted on the vehicle, comprising:
-
a temperature detector for detecting an outside temperature of the vehicle; and a control unit, the control unit configured to; calculate a temperature difference between the outside temperature and a surface temperature of an object estimated based on the outside temperature; determine a luminance value of the object in the captured image by adding a luminance difference corresponding to the temperature difference to a luminance value of a background in the captured image; and extract the object by binarizing the captured image from the infrared camera by using the luminance value of the object as a threshold value. - View Dependent Claims (2, 3, 4, 5)
-
Specification