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Pedestrian recognition method, apparatus and electronic device

A technology for pedestrian recognition and pedestrians, applied in character and pattern recognition, image data processing, instruments, etc., can solve the problem of low accuracy of pedestrian recognition

Active Publication Date: 2017-12-08
ZHEJIANG DAHUA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Embodiments of the present invention provide a pedestrian recognition method, device and electronic equipment to solve the problem of low accuracy in pedestrian recognition in the prior art

Method used

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  • Pedestrian recognition method, apparatus and electronic device
  • Pedestrian recognition method, apparatus and electronic device
  • Pedestrian recognition method, apparatus and electronic device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] like Figure 1a As shown, it is a schematic flow chart of the pedestrian recognition method provided by the embodiment of the present invention, which may include the following steps:

[0050] S11. Acquiring several frames of scanning data of the lidar.

[0051]Preferably, the scanning data is the distance information of each scanning point obtained after the laser radar obliquely scans the passage surface of pedestrians at a preset angle, wherein the distance information of the scanning point is the distance between the scanning point and the The distance between the lidars mentioned above.

[0052] During specific implementation, in the passenger flow counting method provided by the embodiment of the present invention, when the laser radar scans the passage surface of pedestrians, it scans obliquely at a preset angle, and its side schematic diagram is as follows Figure 1b As shown, due to Figure 1b It is a side view, so the scanning surface is a line when viewed f...

Embodiment 2

[0150] Embodiment 2 of the present invention, on the basis of Embodiment 1, when it is determined that the connected area represents a pedestrian, further determines the direction of the pedestrian, which can be applied to scenarios where the direction of the pedestrian needs to be determined.

[0151] like Figure 7a As shown, the flowchart for determining the direction of travel of pedestrians corresponding to the connected area provided by Embodiment 2 of the present invention may include the following steps:

[0152] S71. Determine the gray average of the gray values ​​contained in each row in the connected region.

[0153] Based on prior knowledge, using the laser detector provided by Embodiment 1 of the present invention to tilt the scanning method at a preset angle, refer to Figure 7b As shown, if the pedestrian walks from left to right, the laser detector scans the pedestrian's feet or shoulders first, and then scans the pedestrian's head; in addition, if the pedestr...

Embodiment 3

[0171]Based on the same inventive concept, an embodiment of the present invention also provides a device for counting passenger flow. Since the problem-solving principle of the above-mentioned device is similar to the method for counting passenger flow, the implementation of the above-mentioned device can refer to the implementation of the method, and the repetition is no longer repeat.

[0172] like Figure 8 As shown, it is a schematic structural diagram of the passenger flow statistics device provided in Embodiment 3 of the present invention, including: an acquisition unit 81, a first determination unit 82, a second determination unit 83, and an identification unit 84, wherein:

[0173] The acquisition unit 81 is used to acquire several frames of scanning data of the lidar, the scanning data is the distance information of each scanning point obtained after the lidar obliquely scans the passage surface of pedestrians at a preset angle, wherein the scanning The point distanc...

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Abstract

The present invention discloses a pedestrian recognition method, an apparatus and an electronic device. The method includes the following steps that: a plurality of frames of scanning data of a laser radar are obtained, wherein the scanning data are distance information of each scanning point which is obtained by the laser radar through obliquely scanning the passage surface of pedestrians at a preset angle; the gray-scale values of foreground points contained in the plurality of frames of scanning data packets are determined according to the distance information of the scanning points contained in the plurality of frames of scanning data packets, and the grey-scale map of the foreground points is obtained according to the determined gray-scale values; region growing is performed on the basis of the priori model of the gray-scale distribution of the foreground points obtained by scanning the pedestrians, and connected areas in the grey-scale map are determined; and the pedestrians on the passage surface of the pedestrians are recognized according to the determined connected areas. According to the method provided by the invention, the gray-scale values of the foreground points contained in the plurality of frames of scanning data packets are spliced into the gray-scale map, so that the pedestrian targets on the passage surface can be recognized, and therefore, the accuracy of the statistical result of passenger traffic volume can be improved.

Description

technical field [0001] The invention relates to the technical field of laser radar, in particular to a pedestrian identification method, device and electronic equipment. Background technique [0002] With the rapid development of the economy and increasingly fierce business competition, passenger flow statistics provide a basis for business managers to grasp market rules and make decisions on business operations. In addition, passenger flow statistics are also crucial to urban public safety. Staff can effectively coordinate traffic based on passenger flow statistics during peak hours, thereby avoiding traffic conflicts and other traffic incidents. [0003] Existing passenger flow statistics methods, for example, use a laser scanner to count passenger flow. When pedestrians pass the scanning surface, there will be a bump in the laser scanning data of the current frame, and the peak packet number of the bump represents the current pass through the laser scanning surface. The ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/187G06T7/194G06K9/00
CPCG06T7/187G06T7/194G06V20/53
Inventor 王晓鲁卢维潘石柱
Owner ZHEJIANG DAHUA TECH CO LTD
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