Proceedings of the Conference of Transdisciplinary Federation of Science and Technology
The First Conference of Transdisciplinary Federation of Science and Technology
Displaying 201-223 of 223 articles from this issue
K2-1[Regular Session] Image Measurement
  • Yuan Wong, Jianming Lu, Takashi Yahagi
    Session ID: K2-12
    Published: 2005
    Released on J-STAGE: June 27, 2006
    CONFERENCE PROCEEDINGS FREE ACCESS
    Digital watermarking has been proposed as a solution to the problem of copyright protection of multimedia documents in networked environments. It embeds an imperceptible signal into data such as audio, video and images, for a variety of purposes, including captioning and copyright control. In this paper, we present a new digital image watermarking method base on DWT and JND (just noticed difference), by taking full advantage of the masking characteristics of the human visual system. The experimental results show that the proposed algorithm is effective and robust to common image processing operations and some geometric distortions such as cropping, pinching, pixel-shift, and so on, especially, it receives better robustness under signal enhancement operations. So a conclusion can be made that the proposed technique is practical.
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  • YAN SUN
    Session ID: K2-13
    Published: 2005
    Released on J-STAGE: June 27, 2006
    CONFERENCE PROCEEDINGS FREE ACCESS
    This paper proposes a system applying PNN for classfying the hepatic parenchymal diseases in ultrasonic B-scan texture. In this study,we propose a multifractal method to select the patterns for the training set and validation sets. A modified DBC algorithm is used to calculate the fractal dimensions of the images. FDWT is adopted for feature extraction.The result shows that, compared with the conventional 3-layer NN, the performance of the proposed system is improved.
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  • YUE ZHU, JIANMING LU, TAKASI YAHAGI
    Session ID: K2-14
    Published: 2005
    Released on J-STAGE: June 27, 2006
    CONFERENCE PROCEEDINGS FREE ACCESS
    Since their introduction as a tool for signal representation,waveletes have become increasingly popular within the image coding community,because of the potential gains they offer for the construction of efficient image coding algorithms.Those potential gains are due to the fact that wavelets provide a good tradeoff between resolution in space and frequency domains.New image compression standard JPEG2000privided state-of-the-art compression performance together with an unprecedented set of bit-stream features,including resolutionscalability,SNR scalability and a random access capability.The core alogorithm based on independent Embedded Block Coding withOptimized Truncation of the embedded bit-streams(EBCOT). To avoiding the use of explicit and rate expensive shape descriptors,importantfeature is that the shape information of morphological sets used in the coder is encoded implicitly by the value of wavelet coefficients.To be able to make effctive use of any structure for improving coding performance,We used this method that make joint effort with JPEG2000 coding algorithm. An exprement to study of the statistical properties of wavelet cofficients of image date that gain shape information to decreasing the quantity of the code-blocks.The used method, while achieving the well objective performance of state-of-the-art zerotree based methods, are abletoproduce reconstructions of a somewhat superior perceptual quality due to a property of joint compression.
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  • Kazuki Nagamori, Jun'ichi Yamaguchi
    Session ID: K2-15
    Published: 2005
    Released on J-STAGE: June 27, 2006
    CONFERENCE PROCEEDINGS FREE ACCESS
  • Shuhei Manabe, Jun'ichi Yamaguchi
    Session ID: K2-16
    Published: 2005
    Released on J-STAGE: June 27, 2006
    CONFERENCE PROCEEDINGS FREE ACCESS
K2-2[Session on Utilization of Knowledge] Evaluation and Improvement of CSR, NPO, and Community
K2-3[Collaborative Session] Diversity of Information
K2-4[Collaborative Session] Dimension of Human
K2-5[Collaborative Session] Strategic Management
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