Object Trajectory Analysis in Video Indexing and Retrieval Applications
نویسندگان
چکیده
The focus of this chapter is to present a survey on the most recent advances in representation and analysis of video object trajectories, with application to indexing and retrieval systems. We will review the main methodologies for the description of motion trajectories, as well as the indexing techniques and similarity metrics used in the retrieval process. Strengths and weaknesses of different solutions will be discussed through a comparative analysis, taking into account performance and implementation issues. In order to provide a deeper insight on the exploitation of these technologies in real world products, a selection of examples will be introduced and examined. The set of possible applications is very wide and includes (but it is not limited to) generic browsing of video databases, as well as more specific and context-dependent scenarios such as indexing and retrieval in visual surveillance, traffic monitoring, sport events analysis, video-on-demand, and video broadcasting.
منابع مشابه
Segmented trajectory based indexing and retrieval of video data
In this paper, we present a novel principal component analysis (PCA) based approach towards modeling the object trajectory in a video clip. An eigenspace decomposition of highdimensional trajectory data leads to very compact representation, which is then used as indexing structure. To cutback on PCA computation during indexing, we first segment the trajectories into atomic subtrajectories using...
متن کاملBall Trajectory Estimation and Robot Control to Reach the Ball Using Single Camera
In robotics research, catching a projectile object with a robotic system is one of the challenging problems. The outcome of these researches can be used in a wide range of applications such as video surveillance systems, analysis of sports videos, monitoring programs for human activities, and human-machine interactions. In this paper, we propose a new vision-based algorithm to estimate the traj...
متن کاملVideo Indexing: A Survey
there is a wide range of applications in video retrieval and indexing grabbing researcher’s attention. The following paper includes tutorial as well as a description of the background to common approaches in visual content-based video retrieval and indexing. The focal point is on the mechanisms of video shot boundary detection, key frame extraction, structure analysis, and scene segmentation, a...
متن کاملFiltering of Block Motion Vectors for Use in Motion-Based Video Indexing and Retrieval
ePublications@SCU is an electronic repository administered by Southern Cross University Library. Its goal is to capture and preserve the intellectual output of Southern Cross University authors and researchers, and to increase visibility and impact through open access to researchers around the world. For further information please contact [email protected] of block motion vectors for u...
متن کاملContent-Scalable Analysis for Video Indexing and Retrieval
Video content-scalability for video indexing and retrieval is proposed. Recently, the demand for content-based multimedia applications is increasing even beyond the capabilities of best-effort transmission networks. Therefore, the trend is toward constructing a content-oriented multimedia server that is capable of handling high volumes of content as well as of fulfilling high performance and va...
متن کامل