CAMERA SYSTEM FOR THREE-DIMENSIONAL THERMAL IMAGING
First Claim
1. A 3-dimensional (3D) stereo image camera system for generating a 3D stereo image, the system comprising:
- first and second thermal imaging cameras horizontally spaced apart by a predetermined distance to photograph a subject; and
a stereo &
disparity engine for providing a control signal and a clock signal to the first and second thermal imaging cameras, receiving thermal imaging data from each of said thermal imaging cameras, and calculating disparity data, distance/depth data, and temperature data of the subject from the thermal imaging data.
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Abstract
Provided is a system for displaying a 3D thermal image by using two thermal imaging cameras and extracting distance/depth data in the thermal images. The system includes two thermal imaging cameras where one thermal imaging camera is used as a master camera serving as a reference and the other is used as a slave camera to correct gain and offset of the thermal images and ensure uniformity. In addition, provided is an apparatus and method for correcting gain and offset of the thermal images to be identical to each other and ensuring uniformity by using a process module separately from two thermal imaging cameras.
Therefore, since temperature data is overlaid on the 3D thermal image or the thermal imaging data from which disparity from two cameras is extracted, it is possible to provide more accurate and diverse subject recognition information in comparison to an existing device which provides just a 3D image or an infrared image solely.
In addition, since temperature data is overlaid on a 3D thermal image or the thermal imaging data from which disparity from two cameras is extracted by processing only data about a partial area of interest (temperature area, image area) among the entire thermal image for the purpose of high-speed frame processing, it is possible to rapidly provide more accurate and diverse subject recognition information in comparison to an existing device which provides just a 3D image or an infrared image solely.
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Citations
15 Claims
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1. A 3-dimensional (3D) stereo image camera system for generating a 3D stereo image, the system comprising:
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first and second thermal imaging cameras horizontally spaced apart by a predetermined distance to photograph a subject; and a stereo &
disparity engine for providing a control signal and a clock signal to the first and second thermal imaging cameras, receiving thermal imaging data from each of said thermal imaging cameras, and calculating disparity data, distance/depth data, and temperature data of the subject from the thermal imaging data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for generating a thermal image by using a 3D stereo image camera system which generates a 3D stereo image,
wherein the 3D stereo image camera system includes; - first and second thermal imaging cameras horizontally spaced apart by a predetermined distance; and
a stereo &
disparity engine for providing a control signal and a clock signal to the first and second thermal imaging cameras, receiving thermal imaging data from each thermal imaging camera, and calculating disparity data, distance/depth data, and temperature data of the subject from the thermal imaging data,wherein the method comprising; synchronizing clocks of the first and second thermal imaging camera according to a master clock; synchronizing lens focuses and shutter motions of the first and second thermal imaging cameras; and providing a reference value relating to the performance of at least one property of a dynamic range, histogram, brightness and contrast of the thermal imaging cameras to the first and second thermal imaging cameras, respectively, and setting the first and second thermal imaging cameras to be identical in terms of the performance of at least one property. - View Dependent Claims (12, 13, 14, 15)
- first and second thermal imaging cameras horizontally spaced apart by a predetermined distance; and
Specification