Content-Based Video Retrieval With Prototypes of Deep Features

IEEE Access

Hyeok Yoon¹  Ji-Hyeong Han¹ 

[1] Department of Computer Science and Engineering, Seoul National University of Science and Technology, Seoul, South Korea;

关键词: Video retrieval;    deep learning;    video analytics;    prototypes;    cross-domain evaluation;    few-shot learning;   

DOI  :  10.1109/ACCESS.2022.3160214

来源: DOAJ

【 摘 要 】

The rapid development in the area of information and communication technologies has enabled the transfer of high-resolution, large-sized videos, and video applications have also evolved according to data quality levels. Content-based video retrieval (CBVR) is an essential video application because it can be applied to various domains, such as surveillance, education, sports, and medicine. In this paper, we propose a CBVR method based on prototypical category approximation (PCA-CBVR), which calculates prototypes of deep features for each category to predict the user’s query video category without a classifier. We also undertake fine searching to retrieve the video most similar to the user’s query video from the predicted category database of videos. The proposed PCA-CBVR approach is efficient in terms of its computational cost and maintains meaningful information of the videos. It does not need to train a classifier even when the database is updated and uses all deep features without any dimension reduction step, such as those in CBVR studies. Moreover, we conduct fine-tuning of the 3D CNN feature extractor based on a few-shot learning approach for better domain adaptation ability and apply salient frame sampling instead of uniform frame sampling to improve the performance of the PCA-CBVR method. We demonstrate the performance capability of the proposed PCA-CBVR approach through experiments on various benchmark video datasets, in this case the UCF101, HMDB51, and ActivityNet datasets.

【 授权许可】

Unknown