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Thesaurus as a tool for image indexing and retrieval in the field of cultural heritage

Thesaurus as a tool for image indexing and retrieval in the ...

引用

IEEE Region 8 International Symposium on Video/image processing and Multimedia communications (EURASIP)

作者： G. Zlodi I. Maroevic Faculty of Philosophy Zagreb Croatia

This article deals with some topics related to image indexing and retrieval in the field of cultural heritage. Structured vocabularies play a important role in the improving access to cultural heritage information, so this article reviews the methods and findings in establishment and development of thesauri for visual collections and emphasises problems and possibilities for use of thesauri in networked environment.

关键词： Thesauri Indexing image retrieval Cultural differences Documentation Vocabulary Art History User interfaces Digital images

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Edge-adaptive color reconstruction for single-sensor digital cameras

Edge-adaptive color reconstruction for single-sensor digital...

引用

International conference on Information, communications and Signal processing

作者： Xiaomeng Wang Weisi Lin Ping Xue Nanyang Technological University Singapore Institute for Infocomm Research Singapore

ISBN: (纸本)0780381858

An improved edge-adaptive color interpolation method for Bayer pattern images of single-sensor digital cameras is proposed in this paper. We derive a more accurate color edge classifier by using both ultra-channel and inter-channel correlation. In order to reduce the aliasing artifacts, missing channel values are interpolated along the edge direction. Experiment results show that the proposed method can preserve the edge information better, reduce color-bleeding artifacts and achieve higher image quality and signal fidelity against the existing schemes.

关键词： Digital cameras Interpolation image reconstruction image edge detection Humans visual system image quality Layout Digital filters Charge coupled devices

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Web image mining: can we gather visual knowledge for image recognition from the Web?

Web image mining: can we gather visual knowledge for image r...

引用

International conference on Information, communications and Signal processing

作者： K. Yanai Department of Computer Science University of Electro-Communications Japan

Because of the wide spread of digital imaging devices and the World Wide Web, we can easily obtain digital images of various kinds of real world scenes. Currently, however, classification/recognition of generic real world images is far from practical due to a diversity of real world scenes. To deal with such diversity, we have proposed gathering real world images from the World-Wide Web and using them as training images for image classification. We call this research project "Web image mining". Web images are as diverse as real world scene, since Web images are taken by a large number of people for various kinds of purpose. It is expected that diverse training images enable us to classify/recognition diverse real world images. In this paper, we describe our ongoing project, "Web image mining for generic image recognition".

关键词： image recognition Layout Digital images image classification Web sites Digital cameras Joining processes Computer science image databases Software libraries

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Edge detection techniques in image retrieval: the semantic meaning of edge

Edge detection techniques in image retrieval: the semantic m...

引用

IEEE Region 8 International Symposium on Video/image processing and Multimedia communications (EURASIP)

作者： A. Amato V. Di Lecce II Engineering Faculty Politecnico di Bari Taranto Italy DEE Politecnico di Bari Bari Italy

The identification of features suitable in content based image retrieval is of interest for many researchers. It is well known that the shape is one of the most used features in this field. In this paper a syntactic approach (edge representation based on 4+1 symbols) is used to validate same edge detector. The results show that not all the tested algorithms offer comparable results in terms retrieval effectiveness.

关键词： image edge detection image retrieval Shape Humans Object recognition image processing image recognition Detectors Data mining visual system

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Dynamic ownership verification

Dynamic ownership verification

引用

International conference on Information, communications and Signal processing

作者： Y. Wu Institute for Infocomm Research Singapore

A joint-ownership verification approach [Huiping Guo, et al., (2002)] verified all the coowners with a secret sharing algorithm given that an authority is always available. The joint-ownership scheme was also extended to confirm partial ownership with additional watermarks embedded. This paper pointed out this extension reduces the scheme security and image quality. Additionally, the present paper proposes a new dynamic ownership scheme, which confirms individual owner's right independently. Furthermore, it enables ownership expiry, renewal and inheritance without rewatermarking the image after the image has been watermarked.

关键词： Watermarking Cryptography image quality Authentication Degradation Computer networks IP networks Protection image generation image retrieval

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An edge-preserving high-resolution image reconstruction

An edge-preserving high-resolution image reconstruction

引用

IEEE Region 8 International Symposium on Video/image processing and Multimedia communications (EURASIP)

作者： M. Discepoli I. Gerace R. Pandolfi Dipartimento di Matematica e Informatica Università degli Studi di Perugia Perugia Italy

In many visual problems, line variables, associated to the discontinuities present in the ideal image, are used to obtain better results. In this paper we propose to extend the use of line variables to the high-resolution reconstruction problem. Moreover, we impose that parallel discontinuities should not be close. To minimize the energy function related to this problem we use a CATILED (convex approximation technique for interacting line elements deblurring) algorithm. Experimental results confirm the goodness of this technique.

关键词： image reconstruction image resolution Iterative algorithms Approximation algorithms image restoration Layout image sensors Additive noise Application software Biomedical engineering

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visual contents adaptation for color vision deficiency

Visual contents adaptation for color vision deficiency

引用

IEEE International conference on image processing

作者： Seungji Yang Yong Man Ro Image and Video System Laboratory Information and Communications University Daejeon South Korea

ISBN: (纸本)0780377508

In this paper, we propose methods to adapt colors on the visual content for people with color vision deficiency. The proposed adaptation consists of two parts: adaptations for dichromat and anomalous trichromat. The adaptation for dichromats aims to give them better color information, while the adaptation for anomalous trichromats aims to give them original color. To verify the proposed methods, we used both quantitative and qualitative measurements. Experimental results showed that the proposed adaptation enhanced color information readability of the people with color vision deficiency.

关键词： Pigments Laboratories Wireless communication Cellular phones Web pages Internet Table lookup Costs Humans Photoreceptors

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Facial expression cloning: using expressive ratio image and FAP to texture conversion

Facial expression cloning: using expressive ratio image and ...

引用

International conference on Information, communications and Signal processing

作者： Pei-Wei Hsu Yao-Jen Chang Chao-Kuei Hsieh Yung-Chang Chen Department of Electrical Engineering National Tsing Hua University Hsinchu Taiwan Advanced Technology Center Computer & Communications Research Laboratories Industrial Technology and Research Institute Hsinchu Taiwan

ISBN: (纸本)0780381858

The visual perception of model-based coding is usually not good enough. We develop a facial expression cloning system which can make a 3-D facial model lifelike, and transfer a person's subtle facial change to another's by using the expression ratio image (ERI). An expressive 3-D facial model will be shown. On the other hand, we intend to achieve an intelligent system which can make a 3-D facial model lifelike and doesn't need to transmit any more information, i.e., we intend to model the MPEG-4 facial animation parameters (FAP) to ratio image conversion. In order that each FAP follows a unique ratio image, the FAP and the expression ratio image have to be considered as jointly distributed. Thus, an automated system which achieves the desired lifelike 3-D facial model is developed.

关键词： Cloning Financial advantage program image converters Speech synthesis Head Facial animation Mouth Avatars Speech analysis Chaotic communication

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Partitioning morphological wavelet image coding

Partitioning morphological wavelet image coding

引用

International conference on Information, communications and Signal processing

作者： E.Q. Li Huijuan Cui EE department Tsinghua University Beijing China Intel China Research Center Intel Corporation Beijing China

Recent successes in wavelet image coding are mainly attributed to the exploitation of within and cross subband redundancies with optimized rate-distortion analysis. There have been several very competitive wavelet coders developed, such as Said and Pearlman's SPIHT, Xiong et al.'s SFQ and the JPEG2000 standard etc. A novel wavelet image coding algorithm, namely partitioning morphological wavelet image coding (PMWC) is proposed in this paper, which extends MRWD by logically partitioning the information in the morphological dilated cluster and exploiting the within and cross subband dependencies in the significant coefficient areas. Extensive experiments have shown that the proposed PMWC outperforms SPIHT and MRWD, and is very competitive with the state-of-the-art codecs such as SFQ and JPEG2000. Because of its inherit joint compression and noise reduction properties, the reconstructed images often show somewhat superior perceptual visual quality.

关键词： image coding Wavelet analysis Rate-distortion image analysis Code standards Standards development Clustering algorithms Partitioning algorithms Codecs Transform coding

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Introducing two new image scrambling methods

Introducing two new image scrambling methods

引用

IEEE Pacific Rim conference on communications, Computers and Signal processing

作者： J. Zou R.K. Ward College of Sciences North-China University of Technology Beijing China Department of Electrical and Computer Engineering University of British Columbia Vancouver BC Canada

Two new methods for scrambling digital images are introduced. The first is based on the 3-dimensional Arnold transformation and the second method is based on the generalized Gray code transformation. Not only the algorithms for scrambling a digital image are given, but also the periodicity of the 3-D Arnold transformation and the generalized Gray code transformation are discussed. A few theorems that calculate the periods of the two transformations are given. Examples of image scrambling are also given.

关键词： Digital images Reflective binary codes Information security Watermarking Cryptography Space technology Educational institutions IP networks Humans visual system

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