We have previously introduced the Diffraction Specific Coherent Panoramagram – a multi-view holographic stereogram that provides correct visual accommodation as well as smooth motion parallax with far fewer views than a normal stereogram. This method uses scene depth information to generate directionally-varying wavefront curvature, and can be computed at interactive rates using off-the-shelf g...

Very long baseline interferometry (VLBI) provides the resolution needed to make precision measurements of a pulsar’s parallax and proper motion. In making these measurements, the astronomer is faced with difficult calibration problems and a paucity of strong point-like calibrators that ultimately limit the accuracy of parallax measurements of even the brightest pulsars. A new technique to calib...

Motion parallax is one of the most important 3D clues for human vision perception. The majority of the monitors today display contents regardless of the user’s viewpoint. In this demo, we track head/eye position of the viewer based on a web camera, and use that information to render view-dependent contents, adding motion parallax to essentially any display device. In the demo we will allow ICAS...

This paper presents a system for refining the accuracy and realism of coarse piecewise planar models from an uncalibrated sequence of images. First, dense depth maps are estimated by aligning a planar region of a scene in each image, approximating camera calibration, and generating dense planar parallax. These depth maps are then robustly fused to obtain incrementally refined surface estimates....

A crucial step in forming spatial representations of the environment involves the estimation of relative distance. Active sampling through specific movements is considered essential for optimizing the sensory flow that enables the extraction of distance cues. However, in electric sensing, direct evidence for the generation and exploitation of sensory flow is lacking. Weakly electric fish rely o...

The principle of optical scanning holography (OSH) is proposed to acquire horizontal-parallax-only (HPO) holographic information electronically. We first briefly summarize the results of OSH and then discuss how HPO-electronic holographic information can be acquired using OSH. Finally we provide simulations to illustrate and clarify the proposed idea. Although many ideas of HPO-holography have ...

This paper presents a parallax-robust video stitching technique for timely synchronized surveillance video. An efficient two-stage video stitching procedure is proposed in this paper to build wide Field-of-View (FOV) videos for surveillance applications. In the stitching model calculation stage, we develop a layered warping algorithm to align the background scenes, which is location-dependent a...

We i n vestigate the geometry of two views of seven points, four of which are coplanar, and the geometry of three views of six points, four of which are coplanar. We p r o ve that the two are dual, and that the fundamental geometric constraints in each case are encapsulated by a planar homology. The work uniies a number of previously diverse results related to planar parallax, duality and plana...

A robot vehicle moving under visual guidance needs to compute approximate geometry of obstacles in its environment. It is unreasonable to assume that egomotion is known to the sort of precision that is available for a camera mounted on a high quality robot arm. Generally a nominal estimate for egomotion is available. One possibility is to refine this estimate using optic flow data (Harris, 1987...