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Visible light, infrared and radar fusion target detection method based on deep learning

A technology of deep learning and target detection, applied in the field of artificial intelligence target detection and matching, can solve the problems of not being able to help better understand the target and the surrounding environment, not being able to adapt to scene changes and dynamic changes, detection efficiency and performance reduction, etc. , to achieve the effect of strong anti-interference ability, high stability and improved comprehensive performance

Pending Publication Date: 2022-03-29
上海西虹桥导航技术有限公司
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AI Technical Summary

Problems solved by technology

[0003] The information in the scene obtained by single and unfused target detection is not rich enough, nor can it help to better understand the target and the surrounding environment, and cannot adapt to complex scene changes and dynamic changes. With the increase of training set target types and training As the set increases, the detection efficiency and performance may gradually decrease

Method used

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  • Visible light, infrared and radar fusion target detection method based on deep learning
  • Visible light, infrared and radar fusion target detection method based on deep learning
  • Visible light, infrared and radar fusion target detection method based on deep learning

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Embodiment 1

[0053] Embodiment 1: First, in the data collection and data preprocessing stages: collection such as figure 2 Visible light, thermal infrared and LiDAR data shown, to achieve time synchronization, such as figure 2 As shown in (a) and (b), the visible light data is a 3-channel grayscale image with a resolution of 1280*720, and the values ​​of the 3 channels are the same. Channel color image, the field of view of the two cameras is different, and the two images need to be combined into a fusion image based on the camera calibration data. The radar is a 16-line Velodyne lidar, and the radar data is 3D space point cloud data. After the Cloud2BEV algorithm The converted bird's-eye view is as figure 2 As shown in (c), the resize of the fusion map and the bird's-eye view are both (640, 640, 3), and then the tensor Tensor with the stacking resize of (640, 640, 6) is sent to the model, and the fusion map and the bird's-eye view The images are marked separately, and the marked data...

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Abstract

The invention discloses a visible light, infrared and radar fusion target detection method based on deep learning, and the method comprises the steps: automatically carrying out the analysis and processing of data collected by a visible light camera, a thermal infrared camera and a laser radar, carrying out the fusion of the pretreatment stages of visible light and infrared, achieving the conversion from the point cloud of the laser radar to an aerial view, and carrying out the fusion of the point cloud and the aerial view. And then automatic pyramid-type cross-stage feature extraction and bifurcation are carried out on the fused image and the aerial view, bifurcation target detection is carried out, graph matching is carried out, and finally target detection fusing three modes of visible light, infrared and radar is realized, so that the detection accuracy is improved, the robustness is relatively good, the method can adapt to scene change and dynamic change of a load, and the method is suitable for large-scale popularization and application. Along with the increase of training set target types and the increase of training sets, the method has wider detection performance.

Description

technical field [0001] The invention relates to the technical field of artificial intelligence target detection and matching, in particular to a deep learning-based fusion target detection method of visible light, infrared and radar. Background technique [0002] Target detection is a major research issue in the field of computer vision. Image segmentation, target tracking, and target behavior analysis are all based on target detection. With the development of deep learning algorithms based on convolutional neural networks, target detection has made great breakthroughs. Target detection algorithms based on visible light camera images have been widely used. As a kind of sensor, visible light cameras have the advantages of realistic geometric shape, strong stereoscopic effect, and good resolution, but also have their limitations. For example, visible light cameras are passive cameras. When disturbed by low light or rain, snow, fog, etc., the image quality will drop significant...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/62G06V10/80G06V20/00G06V10/25G06V10/40G06V10/74G06V10/82G01S17/88G06N3/04G06N3/08
CPCG01S17/88G06N3/08G06N3/048G06N3/045G06F18/22G06F18/25
Inventor 兰志才王朝锟李坚
Owner 上海西虹桥导航技术有限公司
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