Search Results 1-20 of 56

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  • Rendezvous Control of a Mobile Robot System with Quantized Sensing:-Dither-Based Method and Its Performance Evaluation  [in Japanese]

    Inoue Daisuke , Azuma Shun-ichi , Sugie Toshiharu

    … <p>This paper develops a rendezvous control method for a mobile robot system with quantized sensing. … First, a new control technique based on dithering is proposed. …

    Transactions of the Institute of Systems, Control and Information Engineers 29(7), 311-317, 2016

    J-STAGE 

  • Effects of Subtractive Dithered Quantizers in Feedback Control Systems  [in Japanese]

    Morita Ryosuke

    … Subtractive dither method is that artificial noise called “dither signal” … In this paper, the method is applied into quantized feedback control systems and the performance of quantizers with subtractive dither is analyzed. …

    Transactions of the Institute of Systems, Control and Information Engineers 29(5), 225-230, 2016

    J-STAGE 

  • The experiences of women with diabetes from pregnancy through to childbirth  [in Japanese]

    AMAYA Mariko

    … To find out the experiences of women with diabetes in the process from pregnancy through to childbirth.<br><b>Subject and Method:</b><br> … dithering but challenging to find out proactively what way is best for themselves in terms of controlling blood-sugar levels during pregnancy; …

    Journal of Japan Academy of Midwifery 29(2), 310-318, 2015

    IR  J-STAGE  Ichushi Web 

  • Dithering-based Sampling and Weighted α-shapes for Local Feature Detection

    Varytimidis Christos , Rapantzikos Konstantinos , Avrithis Yannis , Kollias Stefanos

    … In this work, we propose a novel image sampling method, based on dithering smooth image functions other than intensity. … We thoroughly evaluate the parameters of the method, and achieve state-of-the-art performance on a series of matching and retrieval experiments. …

    IPSJ Transactions on Computer Vision and Applications 7(0), 189-200, 2015

    J-STAGE 

  • Color universal design without restricting colors and their combinations using lightness contrast dithering (Analysis of dither patterns distinguishability and lighting robustness)  [in Japanese]

    OMORI Yuki , MURAKAMI Tamotsu , IKEDA Takumi

    … The authors have been proposing a new method of color universal design without restricting usage of colors and their combinations named "lightness contrast dithering". … A key idea is that a solid color and a dithering of darker and lighter colors which approximate the solid color may look almost similar for people with normal color vision, while they could be distinguishable for people with color vision deficiencies since one is solid and the other is a pattern of dark and light colors. …

    Transactions of the JSME (in Japanese) 81(828), 14-00253-14-00253, 2015

    J-STAGE 

  • 1113 Color Universal Design without Restricting Color Combinations Using Dithering Technique : Methods of Variable Dithering and Optimal Dither Size Derivation  [in Japanese]

    NAGATSU Sho , MURAKAMI Tamotsu , IKEDA Takumi

    … The previous dithering method for color universal design, lightness contrast dithering approximation, has problems that it changes all of the background of pictures and it is difficult for color vision handicapped person to perceive the detail drawing patterns of pictures in a particular dither size. … Therefore in this study, methods of variable dithering and optimal size derivation are proposed. …

    The Proceedings of Design & Systems Conference 2015.25(0), _1113-1_-_1113-10_, 2015

    J-STAGE 

  • Designing Internal Structure of 3D Printed Model with 3D Dithering  [in Japanese]

    Tominaka Yusuke , Mutsuga Yasuaki , Masuda Tsuneo , Masumori Atsushi , Tanaka Hiroya

    … In this research, assuming single material printing, a method of designing internal structure of 3D printed model with 3D dithering is developed. …

    Transactions of the Virtual Reality Society of Japan 20(4), 345-355, 2015

    J-STAGE 

  • A Study of Self-Dithering for ΔΣ Fractional-N PLL  [in Japanese]

    KATO Yuji , IOKA Eri , MATSUYA Yasuyuki

    … Therefore, some method is required for suppressing this oscillation. … In this paper, we propose a self-dithering ΔΣ …

    IEEJ Transactions on Electronics, Information and Systems 133(2), 234-238, 2013-02-01

    J-STAGE  References (5)

  • 3206 Color Universal Design without Restricting Colors and Their Combinations Using Lightness Contrast Dithering  [in Japanese]

    OMORI Yuki , MURAKAMI Tamotsu , IKEDA Takumi

    … This paper proposes a new color universal design method without restricting usage of colors and their combinations using dithering technique. … A key idea is that a solid color and a dithering of darker and lighter colors which approximate the solid color may look almost similar for people with normal color vision, while they could be distinguishable for people with color vision deficiencies since one is solid and the other is a pattern of dark and light colors. …

    The Proceedings of Design & Systems Conference 2013.23(0), _3206-1_-_3206-10_, 2013

    J-STAGE 

  • Multi-level Error Diffusion Method Considering Suppression of Diffused Error  [in Japanese]

    Ochi Hiroshi , Tanaka Hirotaka , Tetsutani Nobuji

    … The error diffusion method is used well for two-level dithered picture because of its high-quality processing compared with other dithering methods. … However, the error diffusion method using multi-level processing causes significant deterioration of picture quality, when an input pixel level is near to a quantization level. …

    The Journal of the Institute of Image Electronics Engineers of Japan 41(4), 379-384, 2012

    J-STAGE 

  • Research Using a Hybrid Screening Process with a Chessboard Pattern

    KANAMATSU Ken , Zhao Xiaochuan , AOKI Naokazu , KOBAYASHI Hiroyuki

    … FM screening technology represented by dithering and error diffusion that gradations are expressed using random dot arrangements. … In this research, we propose a new hybrid screening method combining the advantages of both conventional FM screening and halftone. … Finally, we reduced roughness and applied image quality correction to achieve a new hybrid screening method with improved image quality. …

    Journal of Printing Science and Technology 49(4), 272-281, 2012

    J-STAGE 

  • 1301 Color Universal Design without Restricting Color Combinations by Dithering Technique  [in Japanese]

    OMORI Yuki , MURAKAMI Tamotsu , MITSUISHI Naoto , IKEDA Takumi

    … This paper proposes a new color universal design method without restricting usage of colors and their combinations using dithering technique. … A key idea is that a solid color and a dithering of darker and lighter colors to approximate the solid color may look as similar color by normal color vision whereas they could be distinguishable by color vision deficiencies because one is solid and the other is a pattern of dark and light colors. …

    The Proceedings of Design & Systems Conference 2012.22(0), _1301-1_-_1301-10_, 2012

    J-STAGE 

  • Self-Dithered Digital Delta-Sigma Modulators for Fractional-N PLL

    XU Zule , LEE Jun Gyu , MASUI Shoichi

    … We propose a solution featuring no hardware overhead while achieving equivalent spur elimination effect as using LFSR-dithering. … This method can be implemented on MASH and single-loop DDSMs of 3rd- and 2nd-order. …

    IEICE Transactions on Electronics 94(6), 1065-1068, 2011-06-01

    J-STAGE  References (6) Cited by (2)

  • Color Universal Design without Restricting Color Combinations by Dithering Technique  [in Japanese]

    Murakami Tamotsu , Mitsuishi Naoto , Ikeda Takumi , Aoi Kiyokazu

    … This paper proposes a new color universal design method without restricting color combinations using dithering technique. … A key idea is that a solid color and a dithering of darker and lighter colors to approximate the solid color may look as similar colors by normal color vision whereas they could be distinguishable by color vision deficiencies because one is solid and the other is a pattern of dark and light colors. …

    PROCEEDINGS OF THE ANNUAL CONFERENCE OF JSSD 58(0), 101-101, 2011

    J-STAGE 

  • 3101 Color Universal Design without Restricting Color Combinations by Dithering Technique  [in Japanese]

    MITSUISHI Naoto , MURAKAMI Tamotsu , IKEDA Takumi , AOI Kiyokazu

    … This paper proposes a new color universal design method without restricting color combinations using dithering technique. … A key idea is that a solid color and a dithering of darker and lighter colors to approximate the solid color may look as similar color by normal color vision whereas they could be distinguishable by color vision deficiencies because one is solid and the other is a pattern of dark and light colors. …

    The Proceedings of Design & Systems Conference 2011.21(0), 499-504, 2011

    J-STAGE 

  • Self-Dithered Digital Delta-Sigma Modulators for Fractional-N Frequency Synthesizers

    XU Zule , LEE Jun Gyu , MASUI Shoichi

    … Major conventional solutions include initial condition setup, structural modification, and dithering. … In this paper, we propose a novel dithering method with simple implementation and no hardware overhead while achieving effective spur elimination. … This method is implemented on MASH and single-loop DDSMs. …

    IEICE technical report 110(140), 121-126, 2010-07-15

    References (5)

  • Self-Dithered Digital Delta-Sigma Modulators for Fractional-N Frequency Synthesizers

    Xu Zule , Lee Jun Gyu , Masui Shoichi

    … Major conventional solutions include initial condition setup, structural modification, and dithering. … In this paper, we propose a novel dithering method with simple implementation and no hardware overhead while achieving effective spur elimination. … This method is implemented on MASH and single-loop DDSMs. …

    ITE Technical Report 34.29(0), 121-126, 2010

    J-STAGE  References (5)

  • Contour Perception between Different Halftone Frequencies and New Halftone Algorithm with Halftone Frequency Modulation  [in Japanese]

    KAJONDECHA Phichit , HOSHINO Yasushi

    … The halftone method that utilizes their characteristics by combining different halftone algorithm is one of the challenges of producing high quality halftone image. … The proposed halftone algorithm, based on a cluster dot dithering algorithm, generates a fixed minimum dot size. …

    NIHON GAZO GAKKAISHI (Journal of the Imaging Society of Japan) 48(3), 144-151, 2009

    J-STAGE 

  • Generating Bamboo Weave Images with Dither on Cartesian Lines  [in Japanese]

    MATSUSHIMA Yusuke , INOUE Kohei , URAHAMA Kiichi

    … The bamboo-weave dithering method is devised for determining the color of horizontal and vertical tapes avoiding artificial repetitive color patterns and an iterative solution method is shown to be effective for reducing color quantization errors. …

    The Journal of the Institute of Image Electronics Engineers of Japan 38(1), 24-30, 2009

    J-STAGE 

  • Lossy Coding of Ordered Dither Images:- Comparison of Multi-Level Image based Method and Black Number based Method -

    ONO Fumitaka , KITAMURA Makoto

    … In order to find an efficient lossy coding scheme of ordered dither images, two different coding categories, multi-level lossy image coding (LML) with post-processing of ordered dithering, and sending the number of black pixels in a block of bi-level pixels (BPN), are proposed and studied. …

    Reports of the Technical Conference of the Institute of Image Electronics Engineers of Japan 07-05(0), 59-64, 2008

    J-STAGE 

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