PeR-ViS: Person Retrieval in Video Surveillance using Semantic Description
This work is significant for security and surveillance professionals by enabling person retrieval using semantic descriptions, which is a more practical approach than image-based queries in many real-world scenarios.
This paper addresses the problem of retrieving a specific person from video surveillance footage using a semantic description rather than an image query. The authors developed PeR-ViS, a deep learning-based cascade filtering approach, which achieved an Average IoU of 0.566 and 0.792 %w IoU > 0.4 on the SoftBioSearch dataset, significantly outperforming the current state-of-the-art.
A person is usually characterized by descriptors like age, gender, height, cloth type, pattern, color, etc. Such descriptors are known as attributes and/or soft-biometrics. They link the semantic gap between a person's description and retrieval in video surveillance. Retrieving a specific person with the query of semantic description has an important application in video surveillance. Using computer vision to fully automate the person retrieval task has been gathering interest within the research community. However, the Current, trend mainly focuses on retrieving persons with image-based queries, which have major limitations for practical usage. Instead of using an image query, in this paper, we study the problem of person retrieval in video surveillance with a semantic description. To solve this problem, we develop a deep learning-based cascade filtering approach (PeR-ViS), which uses Mask R-CNN [14] (person detection and instance segmentation) and DenseNet-161 [16] (soft-biometric classification). On the standard person retrieval dataset of SoftBioSearch [6], we achieve 0.566 Average IoU and 0.792 %w $IoU > 0.4$, surpassing the current state-of-the-art by a large margin. We hope our simple, reproducible, and effective approach will help ease future research in the domain of person retrieval in video surveillance. The source code and pretrained weights available at https://parshwa1999.github.io/PeR-ViS/.