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In the current Internet age, there is a need for a set of good tools for copy detection purposes, as well as enhanced navigation, indexing and searching. We tackle this problem using an ordinal method. This paper presents an extension to our earlier work on an algorithm for generating a video signature based on an ordinal measure. We have achieved precision and recall of 0.935 and 0.966 respectively...
This paper discusses the history and current trends of video retrieval, focusing mainly on video segmentation, indexing and search. The objective is to share with the readers how much we have done so far as well as the current trends in the field. Unlike text documents, video contains dynamic information such as audio, motion (object and/or camera motions), etc. Thus, indexing videos for future search...
Information deficiency is a huge problem when researching on video indexing and retrieval. On the other hand, text in video frames implies lots of semantics inherently, and can provide supplemental but important information for video data processing. A smart approach for text detection, localization and extraction in video frames is presented in this paper. Here, block change rate (BCR for short)...
Text detection in video images has received increasing attention, particularly in scene text detection in video images, as it plays a vital role in video indexing and information retrieval. This paper proposes a new and robust gradient difference technique for detecting both graphics and scene text in video images. The technique introduces the concept of zero crossing to determine the bounding boxes...
Video scenes provide semantic meanings for video content description and summarization. This paper explores the pair-wise visual cues of near-duplicate objects for link-constraint affinity-propagation without using keyframes. Experiments demonstrate that our method is more capable to identify scenes comparing with non-constrained clustering algorithms.
In this paper, we propose a new semantic segmentation method for TV programs based on detection and classification of corner-subtitles. Corner-subtitle refers to subtitles that are found on the corner of the screen. They are widely used in Japanese TV programs to present information related to a scene. Corner-subtitles can be used as effective indexes indicating the structure of the program because...
Information deficiency is a huge problem when researching on video indexing and retrieval. On the other hand, text in video frames implies lots of semantics inherently, and can provide supplemental but important information for video data processing. In this paper, we present a fast and robust approach for text detection, localization, extraction, and reorganization in video frames with complex background...
In this paper, we propose a framework to model video sequences using spatiotemporal description of video shots. Spatiotemporal volumes are extracted thanks to an efficient segmentation algorithm. Video shots are described by building an adjacency graph which models the visual properties of the volumes and the spatiotemporal relationships between them. The cost of extracting visual descriptors for...
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