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2007 Fiscal Year Final Research Report Summary

Research on recognition mechanisms of low-quality images for multi-viewpoint video surveillance

Research Project

Project/Area Number 16300054
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Perception information processing/Intelligent robotics
Research InstitutionNagoya University

Principal Investigator

MURASE Hiroshi  Nagoya University, Graduate School of Information Science, Professor (90362293)

Co-Investigator(Kenkyū-buntansha) IDE Ichiro  Nagoya University, Graduate School of Information Science, Associate Professor (10332157)
MEKADA Yoshito  Chukyo University, Faculty of Life Science and Technology, Professor (00282377)
SUENAGA Yasuhito  Nagoya University, Graduate School of Infornation Science, Professor (60293643)
MORI Kensaku  Nagoya University, Graduate School of Information Science, Associate Professor (10293664)
HIRANO Yasushi  Nagoya University, Information Technology Center, Associate Professor (90324459)
Project Period (FY) 2004 – 2007
KeywordsMultiple viewpoint / Low-resolution / Video / Portable camera / Image recognition
Research Abstract

As the Information and Communication Technologies develop, numerous visual sensors such as camera-equipped mobile phones, car-mounted cameras, surveillance cameras now exist ubiquitously in the real-world environment. Accordingly, surveillance technologies that realize a safe and pleasant society by making use of data obtained from these sensors are needed. Images obtained from the real-world with small camera devices, however, have problems such as insufficient resolutions, and the variance of the appearance of objects due to lighting conditions and different viewpoints. This project aimed at developing a method that accurately recognizes from "Very-low quality image" that even human eye& cannot recognize from a single image, by integrating multimodal information obtained from different viewpoints and/or at different timings. The following are the actual fruits of the project (1) Proposed methods for low-quality character recognition, that combine similarities obtained from consecutive frames by robust statistical analysis, and that synthesizes degraded characters for training (2) Proposed a method for deciding optimal arrangements of multiple cameras according to the class of objects to be recognized. Proposed also a method that recognizes well with a small number of training samples. (3) Proposed methods for car-mounted cameras such as detection of streetscape changes based on streetscape video data obtained at different timings, recognition of traffic signs from degraded video data, and weather recognition based on raindrop detection on the front shield of a running car.

  • Research Products

    (8 results)

All 2007 2006

All Journal Article (6 results) (of which Peer Reviewed: 3 results) Presentation (2 results)

  • [Journal Article] Generation of Training Data by Degradation Models for Traffic Sign Symbol Recognition2007

    • Author(s)
      Hiroyuki Ishida, Tomokazu Takahashi, Ichiro Ide, Yoshi to Mekada, Hiroshi Murase
    • Journal Title

      電子情報通信学会英文論文誌 Vol.J90-ENo.8

      Pages: 1134-1141

    • Description
      「研究成果報告書概要(和文)」より
    • Peer Reviewed
  • [Journal Article] GPS座標付き全方位映像群からの市街地映像マップの構築と街並変化の検出2007

    • Author(s)
      佐藤准嗣, 高橋友和, 井手一郎, 村瀬洋
    • Journal Title

      電子情報通信学会論文誌 Vol.J90-DNo.4

      Pages: 1085-1095

    • Description
      「研究成果報告書概要(和文)」より
    • Peer Reviewed
  • [Journal Article] Generation of training data by degradation models for traffic sign symbol recognition2007

    • Author(s)
      H. Ishida, T. Takahashi, I. Ide, Y. Mekada, H. Murase
    • Journal Title

      IEICE Trans vol.E90-D, no. 8

      Pages: 1134-1141

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Construction of a street image map and change detection in streetscapes from GPS coordinated omni-directional image sequences (in Japanese)2007

    • Author(s)
      J. Sato, T. Takahashi, I. Ide, H. Murase
    • Journal Title

      IEICE Trans vol.J90-D, no. 4

      Pages: 1085-1095

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] 携帯ディジタルカメラにより撮影された動画像からの低解像度文字認識2006

    • Author(s)
      柳詰進介, 高橋友和, 井手一郎, 目加田慶人, 村瀬洋
    • Journal Title

      電子情報通信学会論文誌 Vol.J89-DNo.2

      Pages: 323-331

    • Description
      「研究成果報告書概要(和文)」より
    • Peer Reviewed
  • [Journal Article] Recognition of very low-resolution characters from motion images taken by portable digital cameras (in Japanese)2006

    • Author(s)
      S. Yanadume, T. Takahashi, I. Ide, Y. Mekada, H. Murase
    • Journal Title

      IEICE Trans vol.J89-D, no. 2

      Pages: 323-331

    • Description
      「研究成果報告書概要(欧文)」より
  • [Presentation] Planning of Multiple Camera Arrangement for Object Recognition in Parametric Eigenspace2006

    • Author(s)
      Tomokazu Takahashi, Osanori Matsugano, Ichiro Ide, Yoshito Mekada, Hiroshi Murase
    • Organizer
      8th Int. Conf. on Pattern Recognition(ICPR2006)
    • Place of Presentation
      Hong Kong
    • Year and Date
      2006-08-21
    • Description
      「研究成果報告書概要(和文)」より
  • [Presentation] Planning of multiple camera arrangement for object recognition in parametric eigenspace2006

    • Author(s)
      T. Takahashi, O. Matsugano, I. Ide, Y. Mekada, H. Murase
    • Organizer
      8th Int. Conf. on Pattern Recognition (ICPR2006)
    • Year and Date
      2006-08-21
    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2010-02-04  

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