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Non-vision-field target signal identification method based on multi-channel matching

A target signal and identification method technology, which is applied to pattern recognition in signals, character and pattern recognition, instruments, etc., can solve problems such as the influence of multi-target signal identification, and achieve the effect of reducing the amount of calculation and facilitating subsequent tracking processing.

Active Publication Date: 2022-01-11
INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a target signal identification method based on multi-channel matching in view of the problem that strong noise exists in non-line-of-sight target detection that affects the identification of multi-target signals

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  • Non-vision-field target signal identification method based on multi-channel matching
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  • Non-vision-field target signal identification method based on multi-channel matching

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Embodiment Construction

[0033] Below in conjunction with specific embodiment the technical scheme that the present invention provides is described in detail, following embodiment only limits to explain the present invention, but not as the limitation of the present invention, the protection scope of the invention should include the whole content of claim, all by basically identical Similar implementation methods that achieve the same effect all fall within the protection scope of the present invention. Through the following examples, those skilled in the art can realize all the contents of the claims of the present invention.

[0034] This embodiment takes the four-way original photon time-of-flight statistical graph collected in a certain non-line-of-sight target detection experiment as an example, as shown in figure 1 shown. It can be seen that there is a large peak in each statistical graph, which is produced by the interface echo. After removing it by using the method of suppressing the interfac...

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Abstract

The invention provides a non-vision-field target signal identification method based on multi-channel matching. The non-vision-field target signal identification method based on multi-channel matching is provided by utilizing the spatial position relation between a target and each detection point in order to solve the problem that the target signal identification is difficult due to the fact that noise signals are too large and the number of targets is unknown during non-vision-field target detection. Compared with the prior art, the method has the beneficial effects that the signal of each target can be identified without determining the number of the targets in advance; even if continuous or intermittent noise interference exists, the target signal can be correctly identified; and compared with a probability density method, the calculation amount is smaller, the speed is higher, and follow-up tracking processing is facilitated.

Description

technical field [0001] The invention belongs to the field of photoelectric detection, and in particular relates to a multi-channel matching-based non-visual target signal identification method. Background technique [0002] Non-line-of-sight target detection technology, that is, imaging, reconstruction, positioning or tracking of targets that are hidden behind occluders and cannot be directly detected by the camera, has broad application prospects in the fields of emergency rescue, rescue and automatic driving, and has become a popular technology at home and abroad. research hotspot. Traditional optical detection methods require the target to be within the line of sight of the detector for imaging and tracking. Once there is an obstruction between the target and the detector, such as a person at a corner or behind a wall, or an airplane in a cloud, traditional optical methods cannot detect it. [0003] This technology obtains the time-of-flight of actively emitted photons ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06V10/74G06K9/62
CPCG06F2218/02G06F18/22Y02A90/10
Inventor 刘雅卿夏诗烨罗一涵李泰霖谢宗良徐少雄马浩统曹雷
Owner INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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