Open Access

ARTICLE

Key Frame Extraction Algorithm of Surveillance Video Based on Quaternion Fourier Significance Detection

by Zhang Yunzuo^1,*, Zhang Jiayu¹, Cai Zhaoquan²

1 School of Information Science and Technology, Shijiazhuang Tiedao University, Shijiazhuang, 050043, Hebei, China
2 Shanwei Institute of Technology, Shanwei, 516600, Guangdong, China

* Corresponding Author: Zhang Yunzuo. Email:

Journal of New Media 2022, 4(1), 1-11. https://doi.org/10.32604/jnm.2022.027054

Received 10 January 2022; Accepted 09 March 2022; Issue published 21 April 2022

Abstract

With the improvement of people's security awareness, numerous monitoring equipment has been put into use, resulting in the explosive growth of surveillance video data. Key frame extraction technology is a paramount technology for improving video storage efficiency and enhancing the accuracy of video retrieval. It can extract key frame sets that can express video content from massive videos. However, the existing key frame extraction algorithms of surveillance video still have deficiencies, such as the destruction of image information integrity and the inability to extract key frames accurately. To this end, this paper proposes a key frame extraction algorithm of surveillance video based on quaternion Fourier saliency detection. Firstly, the algorithm used colors, and intensity features to perform quaternion Fourier transform on surveillance video sequences. Next, the phase spectrum of the quaternion Fourier transformed image was obtained, and he image visual saliency map was obtained according to the quaternion Fourier phase spectrum. Then, the image visual saliency map of two adjacent frames is used to characterize the change of target motion state. Finally, the frames that can accurately express the motion state of the target are selected as key frames. The experimental results show that the method proposed in this paper can accurately capture the changes of the local motion state of the target while maintaining the integrity of the image information.

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Keywords

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