single-jc.php

JACIII Vol.16 No.2 pp. 212-218
doi: 10.20965/jaciii.2012.p0212
(2012)

Paper:

Dynamic Shadow Generation System Based on Shape Recognition

Yuki Fushio* and Mitsunori Matsushita**

*Graduate School of Informatics, Kansai University, 2-1-1 Ryozenji, Takatsuki 569-1095, Japan

**Faculty of Informatics, Kansai University, 2-1-1 Ryozenji, Takatsuki 569-1095, Japan

Received:
August 23, 2011
Accepted:
November 15, 2011
Published:
March 20, 2012
Keywords:
artificial shadow, shape recognition, image processing, infrared ray
Abstract

This paper proposes a dynamic shadow generation system that combines the shadow of an object with the artificial shadows of virtual characters. In our proposed system, infrared light is used to capture an object’s shadow in order to discriminate between a shadow generated by an object and a virtual shadow generated by the system. Our proposed system determines areas in which shadows do not appear and then the shadows of virtual characters are added to these areas. This paper presents the basic idea of the system, the shadow generation algorithm that it uses, and an empirical study on the sharpness of a generated shadow, along with the distance between an object and a screen used in this system.

References
  1. [1] H. Kato, T. Naemira, and H. Harashima, “Graphic Shadow: Augmenting Your Shadow on the Floor,” the Second IEEE and ACM Int. Symposium on Mixed and Augmented Reality, 2003.
  2. [2] R. Kuwakubo, “The Tenth Sentiment.”
    http://www.ntticc.or.jp/Archive/2010/Openspace2010/Works/thetenthsentiment.html
    (accessed on August 19. 2011)
  3. [3] K. Kurosaki, H. Teraya et al., “Split Personality,” Entertainment Computing 2010, 2010.
  4. [4] G. Yamamoto, H. Xu, and K. Sato, “PALMbit-Silhouette: Superimposing Palm-Silhouette to Access Distributed Large Displays,” The J. of the Institute of Image Information and Television Engineers, Vol.62, No.12, pp. 1988-1996, 2008.
  5. [5] M. Chikamori and K. Kunoh, “KAGE,”
    http://www.plaplax.com/legacy/artwork/minim++/artwork/kage-e.htm
    (accessed on August 19. 2011)
  6. [6] J. Y. Moon, “Augmented Shadow.”
    http://joonmoon.net/#1021400/Augmented-Shadow
    (accessed on August 19. 2011)

*This site is desgined based on HTML5 and CSS3 for modern browsers, e.g. Chrome, Firefox, Safari, Edge, IE9,10,11, Opera.

Last updated on Jun. 28, 2017