A vehicle-mounted thermal imaging pedestrian detection RoIs extraction method and device

An extraction method and pedestrian detection technology, which is applied in the field of pedestrian detection, can solve problems such as detection accuracy decline, failure to meet real-time performance, and computing performance bottlenecks, and achieve the effects of low computing overhead, meeting real-time requirements, and reducing the false alarm rate of the system

Active Publication Date: 2019-05-21
SOUTH CHINA UNIV OF TECH
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Problems solved by technology

[0012] The invention provides a method and device for extracting RoIs for vehicle-mounted thermal imaging pedestrian detection, aiming to solve the problems of reduced detection accuracy and inability to meet real-time performance caused by calculation performance bottlenecks and sample quality defects

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  • A vehicle-mounted thermal imaging pedestrian detection RoIs extraction method and device
  • A vehicle-mounted thermal imaging pedestrian detection RoIs extraction method and device
  • A vehicle-mounted thermal imaging pedestrian detection RoIs extraction method and device

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Embodiment Construction

[0040] The following description with reference to the accompanying drawings is provided to assist in a comprehensive understanding of various embodiments of the present disclosure as defined by the claims and their equivalents. It includes various specific details to aid in that understanding, but these are to be regarded as merely exemplary. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the various embodiments described herein can be made without departing from the scope and spirit of the disclosure. In addition, descriptions of well-known functions and constructions may be omitted for clarity and conciseness.

[0041] The terms and words used in the following description and claims are not limited to the bibliographical meanings, but, are merely used by the inventor to enable a clear and consistent understanding of the present disclosure. Accordingly, it should be apparent to those skilled in the art that the follo...

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Abstract

The invention discloses a vehicle-mounted thermal imaging pedestrian detection RoIs extraction method and device. The method comprises the following steps: solving low and high thresholds of an imagepixel through a cross scanning algorithm, and realizing RoIs generation by utilizing an adaptive double-threshold segmentation algorithm; Carrying out off-line statistics on the spatial gray scale distribution of the pedestrian targets in the data set to obtain RoIs symmetry discrimination indexes and on-line measurement RoIs spatial gray scale distribution, and filtering RoIs without symmetry; And carrying out offline statistics on the dynamic characteristics of the pedestrian targets in the data set to obtain RoIs dynamic discrimination indexes and online measurement RoIs dynamic characteristics, and filtering RoIs without dynamics. The device comprises a RoIs generation module and a RoIs filtering module, The filtration module includes a first stage filter and a second stage filter. According to the method, the pedestrian detection precision can be improved and the system calculation cost can be reduced on the premise of considering the pedestrian detection recall rate.

Description

technical field [0001] The present invention relates to pedestrian detection, and more particularly, to a method and device for extracting RoIs for vehicle-mounted thermal imaging pedestrian detection. Background technique [0002] Vehicle-mounted thermal imaging pedestrian detection technology refers to the use of infrared thermal imaging cameras as visual sensors to capture images / videos of vehicle-mounted traffic scenes, and use machine learning and other methods on computers or embedded platforms to identify all pedestrian targets in the images / videos and The coordinate information of the minimum bounding rectangle identifies the position of each pedestrian on the image. [0003] This process contains two key stages: RoIs extraction and RoIs classification detection, where the quality and quantity of RoIs extraction are the important factors affecting detection accuracy and computational overhead. In the RoIs extraction link, the quality of generated RoIs has a great in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/32G06K9/62G06K9/34
CPCY02T10/40
Inventor 刘琼罗晴徐哲炜
Owner SOUTH CHINA UNIV OF TECH
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