Improving Person Re-Identification Rate in Security Cameras by Orthogonal Moments and a Distance-based Criterion

Majlesi Journal of Electrical Engineering

مقاله 9، دوره 14، شماره 4، اسفند 2020، صفحه 85-91   

نوع مقاله: Review Article

شناسه دیجیتال (DOI): 10.29252/mjee.14.4.85

نویسندگان

Ali Dadkhah؛ Saeed Nasri^*

Department of Computer Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran.

چکیده

Surveillance and security cameras help security forces in public places such as airports, railway stations, universities and office buildings to perform high-level surveillance tasks such as detecting suspicious activity or anticipating undesirable events. Re-Identification (Re-ID) is defined as the process of communicating between images of the person in different cameras in a surveillance environment. Changing the field of view of any camera presents challenges such as changing body posture, changing brightness, noise and blockage. This article focuses on extracting the most distinctive features to overcome these challenges. The features of Hu moment, Zernike moment in 9th order and Legendre moment in 9th order for each image are extracted and merged into a single feature vector to form a single feature vector for each image. Principal Component Analysis (PCA) was used to reduce the vector dimensionality and finally the Mahalanobis distance criterion was used for identification. The proposed method in the VIPeR database has achieved a re-ID rate of 96.5. Although the presented method is simple, the outcome has been superior compared to many of the state-of-the-art methods.

کلیدواژه‌ها

Person re-identification؛ Orthogonal Moments؛ Mahalanobis distance

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