Visibility Enhancement for Transmissive Image using Synchronized Side-by-side Projector–Camera System

Abstract

Extracting the direct light component from light transport helps to enhance the visibility of a scene. In this paper, we describe a method to improve the visibility of the target object by capturing transmissive rays without scattering rays using a synchronized projector–camera system. A rolling shutter camera and a laser raster scanning projector are placed side-by-side, and both epipolar planes are optically aligned on a screen plane which is place between the projector and camera. This paper demonstrates that our method can visualize an internal object inside diluted milk.