The proceedings contains 40 papers. Some of the specific topics discussed are: feature identification as an aid to content-based imageretrieval;scheme for visual feature-based image indexing;techniques for data hidin...
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ISBN:
(纸本)081941767X
The proceedings contains 40 papers. Some of the specific topics discussed are: feature identification as an aid to content-based imageretrieval;scheme for visual feature-based image indexing;techniques for data hiding;searching images using multimedia manager;databases for video information sharing;statistical approach to scene change detection;image indexing using vector quantization;and similarity of color images.
A rotation, translation, and scaling (RTS) invariant color image indexing technique for imaging database systems is described. To demonstrate the RTS property of the imageretrieval, four databases are experimented in...
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A rotation, translation, and scaling (RTS) invariant color image indexing technique for imaging database systems is described. To demonstrate the RTS property of the imageretrieval, four databases are experimented in the computer simulation of the algorithm. The proposed technique is found to be unaffected by substantial changes in the database images due to rotation, translation, and scaling. This makes the technique very robust and attractive for a number of applications of the imagestorage and retrieval systems.
In this paper, we present topics related to tracking of video objects in compressed videodatabases in the context of videoretrieval applications. We developed a videoretrieval and tracking system (VORTEX) to enable...
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In this paper, we present topics related to tracking of video objects in compressed videodatabases in the context of videoretrieval applications. We developed a videoretrieval and tracking system (VORTEX) to enable operation directly on compressed video data. The structure of the video compression standards is exploited in order to avoid the costly decompression operation. This is achieved by utilizing motion compensation-a critical prediction filter embedded in video compression standards-to estimate and interpolate the desired method for template matching. Occlusion analysis, filtering and motion analysis are used to implement fast tracking of objects of interest on the compressed video data. Being presented with a query in the form of template images of objects, the system operates on the compressed video in order to find the images or video sequences where those objects are present and their positions in the image. This enables the retrieval and display of the query-relevant sequences.
This paper describes the videoSTAR experimental database system that is being designed to support video applications in sharing and reusing video data and meta-data. videoSTAR provides four different repositories: for...
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ISBN:
(纸本)081941767X
This paper describes the videoSTAR experimental database system that is being designed to support video applications in sharing and reusing video data and meta-data. videoSTAR provides four different repositories: for media files, virtual documents, video structures, and video annotations/user indexes. It also provides a generic video data model relating data in the different repositories to each other, and it offers a powerful application interface. videoSTAR concepts have been evaluated by developing a number of experimental video tools, such as a video player, a video annotator, a video authoring tool, a video structure and contents browser, and a video query tool.
In this paper, a novel visual search engine for videoretrieval and tracking from compressed multimedia databases is proposed. Our approach exploits the structure of video compression standards in order to perform obj...
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ISBN:
(纸本)0819429880
In this paper, a novel visual search engine for videoretrieval and tracking from compressed multimedia databases is proposed. Our approach exploits the structure of video compression standards in order to perform object matching directly on the compressed video data. This is achieved by utilizing motion compensation-a critical prediction filter embedded in video compression standards-to estimate and interpolate the desired method for template matching. Motion analysis is used to implement fast tracking of objects of interest on the compressed video data. Being presented with a query in the form of template images of objects, the system operates on the compressed video in order to find the images or video sequences where those objects are present and their positions in the image. This in turn enables the retrieval and display of the query-relevant sequences.
A scheme that reduces the needed storage considerably without reducing the retrieval effectiveness of a content-based imageretrieval (CBIR) system such as ASSERT is introduced. This scheme enables ASSERT to retrieve ...
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A scheme that reduces the needed storage considerably without reducing the retrieval effectiveness of a content-based imageretrieval (CBIR) system such as ASSERT is introduced. This scheme enables ASSERT to retrieve the most similar physician-marked key images from the other patients, and those adjacent images that cohere with the key images. Only the key images and the other images that cohere with the key images are retained for archival purposes. This significantly reduces the amount of storage needed for fast retrieval.
In this paper, we study the possibility of using Θ-index for retrieval of imagebase. imageretrieval is related to partition in an image space. If there exists a mapping from an image space to a feature space, the pa...
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ISBN:
(纸本)081941767X
In this paper, we study the possibility of using Θ-index for retrieval of imagebase. imageretrieval is related to partition in an image space. If there exists a mapping from an image space to a feature space, the partition in the image space can be converted into a partition in the feature space. To retrieve an image, some features of the image must be identified. Feature identification can be considered as optimal assignment of some indices to images. This is equivalent to an optimal partition of image space into mutual exclusive regions, each corresponding to particular values of a set of indices. In our system, the feature extraction is implemented by a two-dimensional Θ-transformation. The time complexity for a Θ-transformation is very low. Therefore, for a certain class of images, Θ- transformation is a very efficient algorithm for image indexing.
This paper presents a video indexing and representation tool for sequences which contain moving persons, using a model-based dynamic scene analysis. A scenario, describing the sequence in terms of basic events, is pro...
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ISBN:
(纸本)081941767X
This paper presents a video indexing and representation tool for sequences which contain moving persons, using a model-based dynamic scene analysis. A scenario, describing the sequence in terms of basic events, is proposed. These events constitute a first level of annotation and are used to build a visual representation of the sequence called Object Based video Icon. Experiments are carried out and a prototype system is described.
A novel similarity measure based on the Choquet integral was introduced for retrieving images from a image database that 'mostly' fit the query image. We showed that in certain conditions the measure is a norm...
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A novel similarity measure based on the Choquet integral was introduced for retrieving images from a image database that 'mostly' fit the query image. We showed that in certain conditions the measure is a norm, a fact that can be used to reduce the searching time using the triangle inequality. To test the new measure, a content based imageretrieval system was build. The system was benchmarked against the visual retrieval cartridge, Virage, built into Oracle 8 database system. The results suggested that the new measure is useful for imageretrieval.
A highly integrated wavelet-based image management system is proposed. Three solutions for key aspect of image management are derived: content-based imageretrieval (CBIR); image compression/decompression; and image t...
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A highly integrated wavelet-based image management system is proposed. Three solutions for key aspect of image management are derived: content-based imageretrieval (CBIR); image compression/decompression; and image transmission. By exploring the excellent features of wavelet, integrating key aspect of image management, the system shows a high overall performance.
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