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Psychological testing system and method

A psychological test and subsystem technology, applied in psychological devices, instruments, calculations, etc., can solve the problems of pupil light interference, insufficient follow-up processing of pupil images, and insufficient accuracy

Inactive Publication Date: 2013-07-24
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are sufficient scientific basis for using the pupil to conduct psychological tests, but it also faces many technical difficulties, resulting in insufficient reliability
Firstly, the pupil is easily disturbed by light intensity; secondly, the collection and follow-up processing of the pupil image is not perfect, reflecting the insufficient accuracy of positioning and the accuracy of regional area analysis, and the repeatability is not ideal; in addition, how to use eye track Establishing an information model with pupil zoom information, extracting features through effective technical means, constructing an evaluation system, and improving the robustness of the system are issues that need further research

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Embodiment 1: as Figure 1-3 As shown, a psychological test system, the system includes a human eye image acquisition device and a host subsystem.

[0054] The human eye image acquisition device includes a head-mounted fixing frame, a rechargeable battery, a DC-DC conversion module, a circuit board, 2 infrared LEDs and 2 video cameras.

[0055] There is a transparent observation window at the position opposite to the human eye on the head-mounted fixed frame, and the two video cameras are respectively arranged on the inner side of the observation window, and are used to collect images of the human eye; two infrared LEDs are used to provide Lighting: The intensity of light emitted by infrared LEDs is constant, thereby avoiding the interference of visible light on human eyes when video cameras collect human eye images.

[0056] The circuit board comprises an analog-to-digital conversion and a storage unit connected in sequence, an image compression coding unit and a wire...

Embodiment 2

[0065] Embodiment 2: as image 3 Shown in-6, a kind of mental state test method, the method adopts the limited rational test system in embodiment 1, and concrete steps are as follows:

[0066] S1: 2 video cameras collect human eye images respectively, and the collected human eye images are processed by analog-to-digital conversion and storage unit, and then transmitted to the image compression coding unit for compression coding, and then transmitted to the pupil of the host subsystem through the wireless communication unit Regional analysis and positioning module;

[0067] S2: The pupil area analysis and positioning module processes each human eye image transmitted by the wireless communication unit, obtains the pupil position, pupil area and pupil scaling ratio in each frame of each human eye image, and compares the pupil position, pupil area and pupil The zoom ratio is used as the information vector of each frame of human eye image;

[0068] The horizontal and vertical coo...

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Abstract

The invention relates to a psychological testing system and method. The psychological testing system comprises a human eye image acquisition device and a host subsystem; the human eye image acquisition device is used for carrying out acquiring and compressed encoding on human eye images and transmitting the human eye images to the host subsystem; and the host subsystem is used for processing each received human eye image to obtain a training sample, recording the psychological status represented by each training sample, matching a testing sample with each training sample and taking the psychological status represented by the optimal matched training sample matched with the testing sample as a psychological status represented by the testing sample. The psychological testing method is used for finishing psychological status judgment of a testee by using the psychological testing system and applying pupil area analyzing and positioning, information modeling, KPCA (Kernel Principal Component Analysis) and mode recognition and classification methods. The psychological testing system is simple and rapid to operate; and meanwhile, interference from visible light can be avoided. The psychological testing method is used for realizing accurate positioning of pupils and fine analysis of pupil areas and has high judgment accuracy on the psychological state of the testee.

Description

technical field [0001] The invention relates to a psychological test system and a psychological test method. Background technique [0002] With the development of image analysis technology, eye positioning and tracking technology has gradually matured and become practical. A variety of psychological and physiological tests can be carried out by applying eye movement trajectory and pupil zoom information: eye tracking can be carried out through eye positioning, and human-computer interaction can be realized; Analysis; through the subject's response to sensitive visual stimulus information, eye movement and pupil contraction and dilation analysis can be performed, and various applications such as "lie detection" can be realized. [0003] "Eyes are the windows of the soul", pupil dilation is closely related to psychological reactions, and is not under human control. Usually, the pupils dilate in states of fear, tension, anger, love, pain, etc.; they shrink when disgusted, tir...

Claims

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Application Information

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IPC IPC(8): A61B5/16G06K9/00G06K9/62
Inventor 毛玉星唐雄王艳汪泉霖廖绍文刘赫铭
Owner CHONGQING UNIV
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