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Highly compressed 3D digital archives by illuminating DCT modulated pattern light.

Research Project

Project/Area Number 14550417
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Measurement engineering
Research InstitutionOsaka University

Principal Investigator

SATO Kosuke  Osaka University Grad.Sch.of Engineering Science, Prof., 基礎工学研究科, 教授 (90187188)

Co-Investigator(Kenkyū-buntansha) NISHITAI Asako  College of Science and Engineering, Ritsumeikan Univ., Assoc.Prof., 理工学部, 助教授 (20324832)
HIURA Shinsaku  Osaka University Grad.Sch.of Engineering Science, Assoc.Prof., 基礎工学研究科, 助教授 (40314405)
Project Period (FY) 2002 – 2003
Project Status Completed (Fiscal Year 2003)
Budget Amount *help
¥3,300,000 (Direct Cost: ¥3,300,000)
Fiscal Year 2003: ¥1,700,000 (Direct Cost: ¥1,700,000)
Fiscal Year 2002: ¥1,600,000 (Direct Cost: ¥1,600,000)
KeywordsMixed Reality / Image-Based Rendering / Digital Archives / Photometric Environment Reproduction / 能動照明 / 全周計測
Research Abstract

This research has resulted an extension of Image-Based Rendering (IBR) to represent the specularity of a real object in a virtual environment. A photo of an object captures an image consisting of several physical components; its shape, color, texture, specularity and the lighting condition. This research is intended as an investigation of how to preserve the specularity of an object, which is considerably sensitive to the lighting condition. In the Mixed Reality world, it needs to overlay virtual objects onto real scene with harmonizing the photometric consistency. Many illumination devices usually consist of light sources like light bulbs or LEDs. For reproduction dynamic light environments, it has to adapt the number of light sources and their positions to the current light environments in real-time. To overcome this implemental difficulty, we suggested using LCD panel not as image display device but as illumination device with backlight of LCD. We have developed a new illumination device "LCD cube" for keeping photometric consistency in this research, which is consisting of six inward-pointing LCDs. The system can reproduce arbitrary light environments to the object which is placed at the center of "LCD cube". In order to avoid degrading the image quality due to lower dynamic range of CCD camera, we have produced an idea to capture several images by changing the electronic exposure time of the camera: it generates the high dynamic range light environments by mixing the set of images. As demonstrating, we have presented the method to display high dynamic range light environments by "LCD cube" for Image-Based Lighting. Also, in this research, we have proposed the method for high dynamic range light environments reproduction to avoid degrading the image quality due to dynamic range of CCD camera and LCD display. In addition, we have performed a light reproduction that is a real-time transmission system of light environments with "LCD cube".

Report

(3 results)
  • 2003 Annual Research Report   Final Research Report Summary
  • 2002 Annual Research Report
  • Research Products

    (24 results)

All Other

All Publications (24 results)

  • [Publications] 吉田壮伸: "複合現実感のための反射色計測に基づくプロジェクタ投影テクスチャ"日本バーチャルリアリティ学会論文誌. Vol.9,No.1. 97-104 (2004)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 花谷佐和子: "液晶ハーフミラーを用いた色再現システム"2004年電子情報通信学会総合大会論文集. A16-A31 (2004)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 柳川由紀子: "複合現実感によるデザイン画彩色支援システム"システム制御情報学会論文誌. Vol.16,No.6. 270-280 (2004)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Kosuke Nakayama: "A LCD Cube Transporting High Dynamic Range Light Environments"Proc.of the 2nd International Symposium on Mixed and Augmented Reality. 323-324 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Takenobu Yoshida: "A Virtual Color Reconstruction System for Real Heritage With Light Projection"Proc.of 9th International Conference on Virtual Systems and MultiMedia. 825-831 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Kosuke Sato: "3D Digitizing and Archaeology"Proc.of 13th International Conference on Artificial Reality and Telexistence. 34-39 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Takenobu Yoshida: "Projective texture for mixed reality museum based on color reflection measurement"Transactions of the Virtual Reality Society of Japan. Vol.9,No.1. 97-104 (2004)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Sawako Hanatani: "A MR-Based Color Reproduction using LCD Half Mirror"Proc.of 2004 IEICE general conference. A-16-31. (2004)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Yukiko Yanagawa: "A Support System for Designing Coloration with Mixed Reality Display"Transactions of the Institute of Systems, Control and Information Engineers. Vol.16,No.6. 1-9 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Kosuke Nakayama: "A LCD Cube Transporting High Dynamic Range Light Environments"Proc.of the 2nd International Symposium on Mixed and Augmented Reality. 323-324 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Takenobu Yoshida: "A Virtual Color Reconstruction System for Real Heritage With Light Projection"Proc.of 9th International Conference on Virtual Systems and MultiMedia. 825-831 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Kosuke Sato: "3D Digitizing and Archaeology"Proc.of 13th International Conference on Artificial Reality and Telexistence. 34-39 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 吉田壮伸介: "複合現実感のための反射色計測に基づくプロジェクタ投影テクスチャ"日本バーチャルリアリテイ学会論文誌,Vol.9,No.1,PP.*-*(2004).. Vol.9,No.1(採録決定印刷中). (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] 花谷佐和子: "液晶ハーフミラーを用いた色再現システム"2004年電子情報通信学会総合大会論文集. (発表予定). (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] 柳川由紀子: "複合現実感によるデザイン画彩色支援システム"システム制御情報学会論文誌. Vol.16,No.6. 270-280 (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] Kosuke Nakayama: "A LCD Cube Transporting High Dynamic Range Light Environments"Proc. of the 2nd International Symposium on Mixed and Augmented Reality. 323-324 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Takenobu Yoshida: "A Virtual Color Reconstruction System for Real Heritage With Light Projection"Proc. of 9th International Conference on Virtual Systems and MultiMedia. 825-831 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Kosuke Sato: "3D Digitizing and Archaeology"Proc. of 13th International Conference on Artificial Reality and Telexistence. 34-39 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] 多井堅一郎, 金谷一朗, 塚本敏夫, 佐藤宏介: "高精細3次元形状データを用いた拓本画像作成"日本情報考古学会論文誌. Vol.8,No.2. 1-9 (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] Ken'ichirou Ooi, Toshio Tsukamoto, Kosuke Sato: "Computer Ink Rubbing with Three-Dimensional Measurement"PNC Annual Conference and Joint Meetings 2002. 88-88 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 多井堅一郎, 佐藤宏介, 糊田寿夫, 塚本敏夫: "文化財の3次元計測とその可視化処理"計測自動制御学会第7回パターン計測シンポジウム. 1-6 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 日向匡史, 佐藤宏介, 井白征士: "光切断時間の時空間マッチングによる高精度三次元計測"計測自動制御学会第7回パターン計測シンポジウム. 33-36 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 多井堅一郎, 塚本敏夫, 佐藤宏介: "考古遣物の3次元デジタルアーカイブとその画像分析に関する研究"日本情報考古学会第15回大会予稿集. (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] 中山浩佑, 佐藤宏介, 井口征士: "液晶ディスプレイキューブを用いた高ダイナミックレンジ照明環境再現"2003年電子情報通信学会総合大会予稿集. (2003)

    • Related Report
      2002 Annual Research Report

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Published: 2002-04-01   Modified: 2016-04-21  

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