Aron Baik

A novel 2D-to-3D conversion technique based on relative height-depth cue

We present a simple depth estimation framework for 2D-to-3D media conversion. The perceptual depth information from monocular image is estimated by the optimal use of relative height cue, which is one of well-known depth recovery cues. The height depth cue is very common in photographic images. We propose a novel line tracing method and depth refinement filter as core of our depth estimation framework. The line tracing algorithm traces strong edge positions to generate an initial staircase depth map. The initial depth map is further improved by a recursive depth refinement filter. We present visual results from depth estimation and stereo image generation.

2D-to-3D conversion by using visual attention analysis

This paper proposes a novel 2D-to-3D conversion system based on visual attention analysis. The system was able to generate stereoscopic video from monocular video in a robust manner with no human intervention. According to our experiment, visual attention information can be used to provide rich 3D experience even when depth cues from monocular view are not enough. Using the algorithm introduced in the paper, 3D display users can watch 2D media in 3D. In addition, the algorithm can be embedded into 3D displays in order to deliver better viewing experience with more immersive feeling. Using visual attention information to give a 3D effect is first tried in this research as far as we know.

Device calibration method for optical light modulator

Due to subtle misalignment of optical components in the fabrication process, images projected by an optical light modulator have severe line artifact along the direction of the optical scan. In this paper, we propose a novel methodology to calibrate the modulator and generate the compensate image for the misaligned optical modulator in order to eliminate the line artifact. A camera system is employed to construct Luminance Transfer Function (LTF) that characterizes the optical modulator array. Spatial uniformity is obtained by redefining the dynamic range and compensating the characteristic curvature of the LTF for each optical modulator array element. Simulation results show significant reduction in the visibility of line artifact.