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Area of Science:

Computer Vision
Robotics
Optical Engineering

Background:

Dynamic projection mapping requires precise geometric registration for accurate overlay of projected content.
Existing methods for projector localization can be complex or limited in real-time applications.

Purpose of the Study:

To present a novel projected pixel localization principle for online geometric registration.
To develop and validate techniques for estimating a laser projector's beam position in dynamic projection mapping.

Main Methods:

Utilizing time measurement of a laser projector's raster-scanning beam with a photosensor.
Developing two position estimation techniques: direct illumination and retro-reflective marker measurement.
Conducting system evaluations with prototypes to validate the principle and techniques.

Main Results:

Demonstrated a novel principle for projected pixel localization.
Validated two distinct position estimation techniques through prototype evaluations.
Confirmed the applicability and feasibility of the proposed method in dynamic projection mapping.

Conclusions:

The proposed projected pixel localization principle is effective for online geometric registration in dynamic projection mapping.
The developed techniques offer practical solutions for real-time projector beam localization.
The study highlights the potential of this method for enhancing interactive and dynamic visual experiences.