Visual and auditory aesthetics evaluation method based on electroencephalogram signals and system

A technology of EEG signal and evaluation method, which is applied in the field of brain cognitive nerve function, can solve the problems of lack of objectivity of evaluation standards, and achieve the effect of rich treatment and high-precision recognition

CN113576498AActive Publication Date: 2021-11-02SHANGHAI JIAO TONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2021-11-02

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Abstract

The invention provides a visual and auditory aesthetics evaluation method and system based on electroencephalogram signals, and relates to the technical field of brain cognitive neural functions. The visual and auditory aesthetics evaluation method comprises the following steps: collecting original electroencephalogram signals of a subject during aesthetic activities, and obtaining EEG original data of the subject; preprocessing the obtained EEG original data to obtain pure EEG signals with the same duration under different conditions; calculating energy density spectrums of five different frequency bands of delta, theta, alpha, beta and gamma through short-time Fourier transform, and obtaining energy density spectrum feature matrixes of the different frequency bands; and screening an optimal feature by using a recursive feature based on a support vector machine to perform classifier training, performing classification identification on aesthetic subjective judgment of the participant, obtaining a subjective judgment result of the participant, and feeding back the subjective judgment result to the participant through sound and picture reminding. According to the method, high-precision identification of aesthetic judgment of participants can be realized, objective evaluation of visual and auditory aesthetic can be realized, and thoughts are developed and a technical foundation is laid for fairness of aesthetic evaluation.
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Description

technical field

[0001] The present invention relates to the technical field of brain cognitive nerve function, in particular to an audio-visual aesthetic evaluation method and system based on EEG signals. Background technique

[0002] Beauty has been a topic of curiosity since ancient times. The quality evaluation of aesthetics has a wide influence on human social activities. The development of EEG technology provides technical means for the objective evaluation of aesthetics.

[0003] EEG (Electroencephalography, EEG) data is more focused on time-series brain changes, and is more in line with aesthetic activities related to thinking or action. Therefore, aesthetic-related features can be extracted through EEG data to achieve objective aesthetics of different degrees. Evaluation. At present, EEG technology is mainly divided into induced EEG technology and spontaneous EEG technology. Evoked EEG technology is a regular brain potential change produced under external task co...

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Embodiment Construction

[0064] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0065] The embodiment of the present invention provides an audio-visual aesthetic evaluation method based on EEG signals, mainly for the preprocessing of EEG data and the identification of participants' aesthetic judgments, by collecting the EEG signals of subjects when observing works or listening to music , extract aesthetic-related specific neural response frequency-domain features, train classifiers, classify and recognize subjects’ aesthetic judgments, and output subjects’ subjective judgments throu...