Automatic sub-pixel projector calibration: Supporting improved calibration for projected environments

Ross T. Smith, Guy Webber, Maki Sugimoto, Michael Marner, Bruce H. Thomas

研究成果: Article査読

4 被引用数 (Scopus)

抄録

This paper presents a new hardware and software calibration technology to improve the process of automatic multiple projector calibration using photo detectors to support Spatial Augmented Reality. This research builds on existing calibration methods that employ point-based photo detectors by advancing the hardware with a larger surface area photo detector to locate sub-pixel position with structured light. This data is used to expand the Gray-coding algorithm with an additional step that improves the measurement. The novel hardware allows a sub-pixel position to be calculated and leveraged to improve alignment of multiple-projector environments. The results show the new approach improves position measurement from pixel accuracy using a point photo detector with Gray-code by an order of magnitude providing sub-pixel accuracy by leveraging the planar photo detector and additional algorithm steps.

本文言語English
ページ(範囲)204-213
ページ数10
ジャーナルITE Transactions on Media Technology and Applications
1
3
DOI
出版ステータスPublished - 2013

ASJC Scopus subject areas

  • 信号処理
  • メディア記述
  • コンピュータ グラフィックスおよびコンピュータ支援設計

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