We propose a vision-based registration method for Augmented Reality (AR) that uses real scenes containing multiple planar structures. Our method provides users with an enhanced view of a real scene by overlaying computer-generated virtual objects onto images captured with a movable camera. The virtual objects are associated with a 3D planar structure and appeared to move with that structure. To...

In this paper, we present a specific use of the Particle-based Belief Propagation (PBP) algorithm as an approximation scheme for the joint distribution over many random variables with very large or continuous domains. After formulating the problem to be solved as a probabilistic graphical model, we show that by running loopy Belief Propagation on the whole graph, in combination with an MCMC met...

An on-axis, vibration insensitive, polarization Fizeau interferometer is realized through the use of a pixelated polarization mask spatial carrier phase shifting technique in conjunction with a high coherence source and a polarization frequency shift device. In this arrangement, differential motion between the test and reference surfaces, in conjunction with the polarization frequency shift dev...

Image acquisition systems based on multi-head arrangement of digital cameras are attractive alternatives enabling a larger imaging area when compared to a single frame camera. The calibration of this kind of system can be performed in several steps or by using simultaneous bundle adjustment with relative orientation stability constraints. The paper will address the details of the steps of the p...

A new method for actively recovering depth information using image defocus is demonstrated and shown to support active stereo vision depth recovery by providing monocular depth estimates to guide the positioning of cameras for stereo processing. This active depth-from-defocus approach employs a spatial frequency model for image defocus which incorporates the optical transfer function of the ima...

This paper describes pre-visualization systems using mixed reality (MR) for filmmaking. We have promoted and conducted the MRPreViz project which includes this research and systems since Oct.2005. In the pre-production stage of today’s filmmaking, PreViz, pre-visualizing a desired movie scene with CGI, is used for sharing final images of movies. MR-PreViz is an advanced approach that utilizes M...

This paper describes a dataset collected by an autonomous ground vehicle testbed, based upon a modified Ford F-250 pickup truck (Fig 1). The vehicle is outfitted with, a professional (Applanix POS LV) and consumer (Xsens MTI-G) Inertial Measuring Unit (IMU); along with a 3D Velodyne lidar scanner, two push-broom forward looking Riegl lidars, and a Point Grey Ladybug3 omnidirectional camera syst...

HyperMirror is a new type of video conversation system which does not simulate face-to-face conversation in real space. In real space, people may feel that a relative positional relationship to the other person is comfortable and sometimes that it is not. They seem to feel a similar relationship also in HyperMirror. In this paper, we observe the relationship between arrangement of participants ...

This paper introduces a new architecture for face detection in color images. Based on skin locus and successive detectors, the method allows high efficiency under drastically varying illumination conditions. While most color-based approaches work only if the camera was calibrated and detect faces if the features (eyes, mouth, eyebrows...) are visible and detectable, our system detects faces eve...