Sparse Arrangements and the Number of Views of Polyhedral Scenes

On the Number of Views of Polyhedral Scenes

Reconstructing Polyhedral Models of Architectural Scenes from Photographs

This paper presents a new image-based modeling method that facilitates the recovery of accurate polyhedral models of architectural scenes. The method is particularly e ective because it exploits many of the constraints that are characteristic of architectural scenes. This work is placed in the context of the Fa cade project, whose goal is to use images to produce photo-realistic novel views of ...

3-D polyhedral face computation from two perspective views with the aid of a calibration plate

The 3-D reconstruction of visible polyhedral faces from a pair of general perspective views with the aid of a calibration plate is addressed. A polyhedron is placed on a planar calibration plate and two side views of both the polyhedron and the calibration plate are taken. Through proper arrangements we may assume that in the two views a number of polyhedral edges lying on the calibration plate...

Traffic Scene Analysis using Hierarchical Sparse Topical Coding

Analyzing motion patterns in traffic videos can be exploited directly to generate high-level descriptions of the video contents. Such descriptions may further be employed in different traffic applications such as traffic phase detection and abnormal event detection. One of the most recent and successful unsupervised methods for complex traffic scene analysis is based on topic models. In this pa...

Clustered Deep Shadow Maps for Integrated Polyhedral and Volume Rendering

This paper presents a hardware-accelerated approach for shadow computation in scenes containing both complex volumetric objects and polyhedral models. Our system is the first hardware accelerated complete implementation of deep shadow maps, which unifies the computation of volumetric and geometric shadows. Up to now such unified computation was limited to software-only rendering . Previous hard...