[Invited Paper] Semantic Indexing for Large-Scale Video Retrieval

抄録

Video semantic indexing, which aims to detect objects, actions and scenes from video data, is one of important research topics in multimedia information processing. In the Text Retrieval Conference Video Retrieval Evaluation (TRECVID) workshop, many fundamental techniques for video processing have been developed and have been shown to be effective for real data such as Internet videos. They include extensions of deep learning techniques and image recognition techniques such as bag of visual words to video data. This paper reviews TRECVID activities with these techniques for semantic indexing. We also show the TokyoTech system using Gaussian-mixture-model (GMM) supervectors and deep convolutional neural networks (CNNs) with its experimental evaluation at TRECVID 2014.