Night pedestrian detection method and device based on thermal imaging
A technology of pedestrian detection and thermal imaging, which is applied in the directions of instruments, character and pattern recognition, computer components, etc., can solve the problems of difficult distinction, inability to collect clear pictures, and insufficient accuracy of pedestrians at night, so as to meet real-time and accuracy, Effect of increasing contrast and improving accuracy
Active Publication Date: 2020-01-14
ANHUI CREARO TECH
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[0003] In the field of security monitoring and auto-driving technology, in order to monitor illegal personnel entering forbidden areas and self-driving cars avoiding pedestrians, it is necessary to detect pedestrians, among which thermal imaging technology is used to detect pedestrians, because there are many pedestrian detection methods at night Inadequacies, such as: first, the light is dark at night, and normal clear pictures cannot be collected; second, the difference between pedestrians and the background in ordinary infrared images is small, and it is difficult to distinguish
Therefore, the accuracy of pedestrian detection at night is not enough
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[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0039] see figure 1
[0040] In the embodiment of the present invention
[0041] A method for detecting pedestrians at night based on thermal imaging, the method comprising:
[0042] S101. Acquiring nighttime infrared thermal imaging images;
[0043] S102. Process the night-time infrared thermal imaging image to generate a first image and a second image;
[0044] S103. Separate the first image and the second image to obtain a red channel image, a blue chan...
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The invention discloses a night pedestrian detection method and device based on thermal imaging. The method comprises the steps that a night infrared thermal imaging image is acquired; processing theobtained night infrared thermal imaging image to generate a first image and a second image; separating the first image and the second image to obtain a red channel image, a blue channel image and a green channel image; respectively extracting red channel images in the first image and the second image, and carrying out edge detection change on the red channel images; fusing the red channel after edge detection change in the first image with a blue channel image and a green channel image in the first image to obtain a first fused image. According to the invention, the contrast ratio of pedestrians and backgrounds is increased, and clear pictures can be obtained, so that the pedestrian detection accuracy is improved.
Description
technical field [0001] The invention relates to the technical field of thermal imaging detection, in particular to a method and device for detecting pedestrians at night based on thermal imaging. Background technique [0002] Thermal imaging technology, which is what we often call infrared radiation imaging technology, according to the optical theory knowledge of natural object imaging, any object that can be captured by light can generate the photosensitive imaging state of the background object. In a modern society with highly developed technology , the additional device for night scene photography with infrared thermal imaging has been popularized. Regarding the principle of infrared imaging, it is mainly a photographic equipment developed based on the principle of infrared radiation of objects higher than the absolute temperature of space -273.15 degrees. Objects with absolute temperature will form a state of thermal infrared radiation, while objects below the absolute t...
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Login to View More IPC IPC(8): G06K9/00G06K9/46G06K9/62
CPCG06V40/23G06V10/44G06F18/241
Inventor 张永义万海峰姚莉莉郑浩张传金
Owner ANHUI CREARO TECH