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Infrared sensing device and infrared sensing system and method for human identification

An infrared sensing and identification technology, applied in the field of infrared detection, can solve the problems of high computational complexity, difficult to use, and easy to be interfered by the external environment, so as to improve the identification efficiency and reduce the complexity.

Inactive Publication Date: 2017-10-24
SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although gait recognition can be realized in a long-distance range, camera-based gait detection also has the problem that image processing requires too much hardware communication bandwidth and computing power, and the computational complexity of capturing human gait and extracting features in images It is higher than other biological characteristics, because gait is a combination of static and dynamic characteristics, it is more easily disturbed by the external environment, and the amount of image data is larger
In addition, gait detection based on inertial sensors requires the user to wear multiple sensors all over the body, which is difficult to use in daily life

Method used

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  • Infrared sensing device and infrared sensing system and method for human identification
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  • Infrared sensing device and infrared sensing system and method for human identification

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Embodiment 1

[0037] Figure 1-2 It is a schematic structural diagram of an infrared sensing device provided in Embodiment 1 of the present invention. Such as Figure 1-2 As shown, the infrared sensing device 1 includes:

[0038] An infrared sensor 11 is used to detect infrared radiation to obtain an infrared analog signal;

[0039] The mask 12 is arranged on the periphery of the infrared sensor 11 , and windows for the infrared radiation to pass through are opened at different positions of the mask 12 .

[0040] The infrared sensing device 1 provided in this embodiment is sensitive to a moving human body, can detect a moving human body, is not easily disturbed by the environment, and is especially suitable for human body activity detection; in addition, the infrared sensing device 1 can directly detect the movement of a human body. The gait information is obtained from the infrared analog signal of the body movement during walking, and the gait features can be extracted without the comp...

Embodiment 2

[0048] The embodiment of the present invention also provides an infrared sensing system for human body identification, including a computing unit and a plurality of infrared sensing devices 1 according to any one of the technical solutions of the above-mentioned embodiment, a plurality of infrared sensing devices 1 are respectively arranged in different positions, and the plurality of infrared sensing devices 1 are respectively connected to the computing unit, and the computing unit is used for performing human body identification according to the infrared analog signals output by the plurality of infrared sensing devices.

[0049] Specifically, a plurality of said infrared sensing devices 1 are arranged at different positions and / or at different heights within the range of personnel activities, and a plurality of said infrared sensing devices 1 detect information of different angles of movement of human body limbs, and the infrared sensing system The recognition accuracy is hi...

Embodiment 3

[0053] Embodiment 3 of the present invention provides a method for human body identification, which is implemented by using the infrared sensing system described in any of the technical solutions in Embodiment 2 above. In the process of introducing the method steps below, four steps are included: Infrared sensing devices, each infrared sensing device includes an infrared sensor system for human body identification as an example for illustration. Such as Image 6 As shown, the method includes the following steps:

[0054] S1. The calculation unit converts the infrared analog signal output by each infrared sensor into a binary signal;

[0055] Wherein, the calculation unit converts the infrared analog signals output by the four infrared sensors into binary signals respectively, and converts the infrared analog signal output by one of the infrared sensors into binary signals such as Figure 7 shown. The infrared analog signals output by the four infrared sensors are converted ...

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Abstract

The invention discloses an infrared sensing device and an infrared sensing system and method for human identification, and belongs to the technical field of infrared detection. The infrared sensing device comprises an infrared sensor for detecting infrared radiation to obtain infrared analog signals, and a mask arranged on the periphery of the infrared sensor and provided with windows through which the infrared radiation passes at different positions. The infrared sensing device can directly detect gait information of a moving body, improves the identification efficiency, reduces the complexity of calculation, and does not need personnel coordination.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of infrared detection, and in particular to an infrared sensing device, an infrared sensing system and method for human body identification. Background technique [0002] At present, human body identification is widely used in many fields such as security and finance, and there are many devices and methods for human body identification. [0003] The most commonly used method for identification is to use biometric features such as the user's face, pupils, or fingerprints for identification. Face-based identification uses a camera to obtain facial images, and then performs facial recognition through image processing and machine learning techniques to identify identities. This method has a relatively high accuracy rate, but the calculation complexity is huge, the calculation performance requirements of the hardware are high, and the algorithm training process takes a long time. Identific...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06K9/20G06K9/62G06K9/74
CPCG06V40/25G06V10/147G06V10/88G06F18/295
Inventor 郝祁马睿
Owner SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA