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检索条件"任意字段=Conference on Storage and Retrieval for Image and Video Databases III"

共 344 条记录，以下是321-330 订阅

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Low-cost outdoor video motion and non-motion detection

Low-cost outdoor video motion and non-motion detection

引用

International Carnahan conference on Security Technology

作者： B.J.T. Jones Astra Developments Limited Hellerup Denmark

The video monitoring of outdoor sites is a demanding task that is commonly tackled by having security guards look at arrays of CCTV monitors. Experience shows that this is largely ineffective, both as a detector and a deterrent. However, modern digital imaging systems can solve both these problems by maintaining constant vigilance 24 hours a day. These systems can be versatile and can operate in several different modes, video motion detection, video nonmotion detection and incident capture, thus providing a flexibility of application environment. By basing these systems on powerful PC technology the end user benefits from a large range of facilities at relatively low cost. In particular, it is possible to have low cost frame storage and high performance communications over telephones, ISDN or Ethernet. image sequences both prior to and after an event can be stored and transmitted. Archiving and retrieval of events can be done efficiently through standard databases. However, in order that such systems be operationally viable it is essential that the detection algorithms be smart enough to reduce the number of false alarms to virtually zero. Most of the discussion concerns technology that is currently available and in everyday use: the author uses the ASTRAGUARD product as a specific example of such a system.

关键词： Motion detection Costs Monitoring Security Detectors Digital images Telephony ISDN Ethernet networks image sequences

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DEVELOPING POWER TOOLS FOR video INDEXING AND retrieval 2

DEVELOPING POWER TOOLS FOR VIDEO INDEXING AND RETRIEVAL

引用

conference on storage and retrieval for image and video databases II

作者： ZHANG, HJ SMOLIAR, SW NATL UNIV SINGAPORE INST SYST SCISINGAPORE 0511SINGAPORE

ISBN: (纸本)0819414808

Computer-assisted content-based indexing is a critical enabling technology and currently a bottleneck in productive use of video resources. This paper presents the video Classification Project, an effort toward automating content-based video indexing and retrieval, at the Institute of Systems Science of the National University of Singapore. We discuss in detail three goals of the project: image processing tools for video parsing, feature extraction and retrieval; a knowledge-based approach to representing video content; and stratified tools which allow greater flexibility in browsing a video resource, either before or after performing specific retrieval operations.

关键词： video Visualization Cameras databases image segmentation Feature extraction image retrieval video processing Semantic video Human-machine interfaces

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TOOLS FOR INTERACTIVE ANALYSIS OF imageRY, video, AND ASSOCIATED DATA 2

TOOLS FOR INTERACTIVE ANALYSIS OF IMAGERY, VIDEO, AND ASSOCI...

引用

conference on storage and retrieval for image and video databases II

作者： BERGEN, J ASMUTH, C CONNOLLY, B ANANDAN, P DAVID SARNOFF RES CTR PRINCETONNJ 08543

There is no online version at this time. The PDF is only available to people who have bought the paper or have a subscription.

ISBN: (纸本)0819414808

There is no online version at this time. The PDF is only available to people who have bought the paper or have a subscription.

关键词： databases image processing image registration image analysis image sensors video Visualization Vegetation image visualization Analytical research

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INDEXES FOR USER ACCESS TO LARGE video databases 2

INDEXES FOR USER ACCESS TO LARGE VIDEO DATABASES

引用

conference on storage and retrieval for image and video databases II

作者： ROWE, LA BORECZKY, JS EADS, CA UNIV CALIF BERKELEY DIV COMP SCIBERKELEYCA 94720

ISBN: (纸本)0819414808

video-on-Demand systems have received a good deal of attention recently. Few studies, however, have addressed the problem of locating a video of interest in a large video database. This paper describes the design and implementation of a metadata database and query interface that attempts to solve this information retrieval problem.

关键词： video databases Interfaces Cameras Human-machine interfaces Visualization Distributed computing image segmentation Computing systems Computer science

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DEVELOPMENT OF OBJECT-ORIENTED MULTIMEDIA DATABASE AND ITS APPLICATION TO retrieval OF MAINTENANCE PARTS 2

DEVELOPMENT OF OBJECT-ORIENTED MULTIMEDIA DATABASE AND ITS A...

引用

conference on storage and retrieval for image and video databases II

作者： ISHIKAWA, H MINEGISHI, N SHIMA, M KIRA, K TANAKA, S MITSUBISHI ELECTR CORP COMP & INFORMAT SYST LABKANAGAWAJAPAN

In this paper is presented a method of maintenance part information retrieval, applied to a multimedia database of elevator parts.

ISBN: (纸本)0819414808

In this paper is presented a method of maintenance part information retrieval, applied to a multimedia database of elevator parts.

关键词： Navigation systems databases Multimedia Computing systems Data modeling Document management Computer aided design Prototyping Process engineering Solid modeling

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PHOTOBOOK - TOOLS FOR CONTENT-BASED MANIPULATION OF image databases 2

PHOTOBOOK - TOOLS FOR CONTENT-BASED MANIPULATION OF IMAGE DA...

引用

conference on storage and retrieval for image and video databases II

作者： PENTLAND, A PICARD, RW SCLAROFF, S MIT MEDIA LABPERCEPTUAL COMP SECTCAMBRIDGEMA 02139

ISBN: (纸本)0819414808

We describe the Photobook system, which is a set of interactive tools for browsing and searching images and image sequences. These tools differ from those used in standard image databases in that they make direct use of the image content rather than relying on annotations. Direct search on image content is made possible by use of semantics-preserving image compression, which reduces images to a small set of perceptually-significant coefficients. We describe three Photobook tools in particular: one that allows search based on grey-level appearance, one that uses 2D shape, and a third that allows search based on textural properties.

关键词： databases image compression video Data modeling image processing image segmentation Cameras Finite element methods Mouth Computing systems

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RETRIEVING imageS BY 2D SHAPE - A COMPARISON OF COMPUTATION METHODS WITH HUMAN PERCEPTUAL JUDGMENTS 2

RETRIEVING IMAGES BY 2D SHAPE - A COMPARISON OF COMPUTATION ...

引用

conference on storage and retrieval for image and video databases II

作者： SCASSELLATI, B ALEXOPOULOS, S FLICKNER, M MIT DEPT COMP SCICAMBRIDGEMA 02139

ISBN: (纸本)0819414808

In content based image retrieval, systems allow users to ask for objects similar in shape to a query object. However, there is no clear understanding of how computational shape similarity corresponds to human shape similarity. In this paper several shape similarity measures were evaluated on planar, connected, non-occluded binary shapes. Shape similarity using algebraic moments, spline curve distances, cumulative turning angle, signal of curvature and Hausdorff- distance were compared to human similarity judgments on twenty test shapes against a large image database.

关键词： databases Binary data Computer programming image retrieval Content based image retrieval Human subjects Matrices Optical inspection Raster graphics Algorithm development

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FLEXIBLE MONTAGE retrieval FOR image DATA 2

FLEXIBLE MONTAGE RETRIEVAL FOR IMAGE DATA

引用

conference on storage and retrieval for image and video databases II

作者： SAKAMOTO, H SUZUKI, H UEMORI, A NIPPON TELEGRAPH & TEL PUBL CORP HUMAN INTERFACE LABS3-9-11 MIDORI CHOMUSASHINOTOKYO 180JAPAN

ISBN: (纸本)0819414808

Academic and photo libraries require the reuse of images. If the database is large, similarity retrieval and retrieval by sketch are effective. However, similarity retrieval can retrieve images that are similar to only one key image. retrieval by sketch can retrieve images that are similar to the sketch, but it is not always easy to make a sketch sufficiently similar to the desired image. To overcome these limitations, we propose a new flexible montage retrieval method (FMR) that allows the user to retrieve images by appropriately combining characteristics of the key images in the same way that a montage picture of a criminal is constructed. In FMR, the user selects one or more key images and specifies areas (called `key regions') manually or by using image manipulating tools. He then indicates the retrieval conditions, for example, the requirement that the image to be retrieved includes specified areas. This paper describes an FMR algorithm that uses a color histogram and texture to quantify the similarity between a key region and an image in the database. The effectiveness of FMR is then statistically demonstrated by comparing its correct retrieval rate with that of retrieval by sketch. The retrieval rate is calculated from the result of retrieving the images that include a specified sky image from among more than 150 images containing various sky images.

关键词： image retrieval databases image storage Rhodium Feature extraction Radium RGB color model Tellurium Lithium Photography

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VISUAL image retrieval FOR APPLICATIONS IN ART AND ART-HISTORY 2

VISUAL IMAGE RETRIEVAL FOR APPLICATIONS IN ART AND ART-HISTO...

引用

conference on storage and retrieval for image and video databases II

作者： HOLT, B HARTWICK, L UNIV CALIF DAVIS DAVISCA 95616

ISBN: (纸本)0819414808

Visual query programs are an effective tool for searching large collection of images. Unlike most programs of this type that rely on text to access categories of images, IBM's QBIC software will search for images based on what they look like. This is of value in situations where the content of an image is not described in the text catalog or when the user is seeking relational images. The Art and Art History Department at the University of California, Davis is using QBIC to determine what role it may play in retrieval of fine art images. This paper describes the department's construction of a pilot database and presents preliminary findings.

关键词： Visualization databases image retrieval image storage image quality Digital imaging image visualization Information visualization Photography Skin

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EFFICIENT CONTENT-BASED retrieval IN image databases - A PROBABILISTIC APPROACH 2

EFFICIENT CONTENT-BASED RETRIEVAL IN IMAGE DATABASES - A PRO...

引用

conference on storage and retrieval for image and video databases II

作者： RABITTI, F SAVINO, P CNR IST ELABORAZ INFORMAZI-56100 PISAITALY

ISBN: (纸本)0819414808

This paper describes the retrieval process from image databases, based on a partial match between the query and the images. The proposed approach allows to measure the similarity between the query and the images in the database and to retrieve those having the highest probability to be relevant. The paper describes the query processing and the access structures, based on the `signature method'. Four levels of signature files are associated to the image database and a signature is associated to the query. The query signature is compared with the image signatures in a four step image processing algorithm. The result of the process is a set of images with an associated recognition degree, measured by using information provided by the user during query formulation (such as importance of the presence of each object) and by using the image structure and the recognition degree associated to each object. The retrieved images are presented to the user in decreasing relevance order. The method described so far is inefficient, since the selection of most relevant images is executed among all relevant images (even those having a low relevance). The paper presents two approaches for improving the efficiency of query processing by (a) reducing the number of accesses to the image Database and (b) by reducing the number of accesses to the signature file. The two approaches are discussed in detail in the paper. The advantages and drawbacks of each method are illustrated.

关键词： image retrieval image processing databases image analysis image filtering Prototyping image enhancement Detection and tracking algorithms Silicon Analytical research

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