The Occlusion Camera

We introduce the occlusion camera: a non-pinhole camera with 3D distorted rays. Some of the rays sample surfaces that are occluded in the reference view, while the rest sample visible surfaces. The extra samples alleviate disocclusion errors. The silhouette curves are pushed back, so nearly visible...

Full description

Saved in:
Bibliographic Details
Published in:Computer graphics forum 2005-09, Vol.24 (3), p.335-342
Main Authors: Mei, Chunhui, Popescu, Voicu, Sacks, Elisha
Format: Article
Language:English
Subjects:
Cameras
Computer graphics
Computer peripherals
Studies
Three dimensional imaging
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We introduce the occlusion camera: a non-pinhole camera with 3D distorted rays. Some of the rays sample surfaces that are occluded in the reference view, while the rest sample visible surfaces. The extra samples alleviate disocclusion errors. The silhouette curves are pushed back, so nearly visible samples become visible. A single occlusion camera covers the entire silhouette of an object, whereas many depth images are required to achieve the same effect. Like regular depth images, occlusion-camera images have a single layer thus the number of samples they contain is bounded by the image resolution, and connectivity is defined implicitly. We construct and use occlusion-camera images in hardware. An occlusion-camera image does not guarantee that all disocclusion errors are avoided. Objects with complex geometry are rendered using the union of the samples stored by a planar pinhole camera and an occlusion camera depth image. [PUBLICATION ABSTRACT]
ISSN:0167-7055
1467-8659
DOI:10.1111/j.1467-8659.2005.00858.x