Polyhedral Scene Analysis Combining Parametric Propagation with Calotte Analysis

2005 ◽  
pp. 383-402 ◽  
Author(s):  
Hongbo Li ◽  
Lina Zhao ◽  
Ying Chen
Keyword(s):  
Scene Analysis ◽  
Polyhedral Scene

scholarly journals A symbolic approach to polyhedral scene analysis by parametric calotte propagation

Robotica ◽  
2008 ◽  
Vol 26 (4) ◽  
pp. 483-501
Author(s):  
Hongbo Li ◽  
Lina Zhao ◽  
Ying Chen
Keyword(s):  
Symbolic Computation ◽  
Line Drawing ◽  
Algebraic Manipulation ◽  
Scene Analysis ◽  
Cayley Algebra ◽  
2D Data ◽  
Symbolic Approach ◽  
Grassmann Cayley Algebra ◽  
Polyhedral Scene ◽  
Polyhedral Scenes

SUMMARYPolyhedral scene analysis studies whether a 2D line drawing of a 3D polyhedron is realizable in space, and if so, it gives the results of parameterizing the space of all possible realizations. For generic 2D data, symbolic computation with Grassmann–Cayley algebra is needed in the analysis. In this paper, we propose a method called parametric calotte propagation to solve the realization and parameterization problems for general polyhedral scenes at the same time. In algebraic manipulation, parametric propagation is more efficient than elimination. In applications, it can lead to linear construction sequences for nonspherical polyhedra whose resolvable sequences do not exist.

scholarly journals Crime Scene Analysis Through DNA Testing of Canine Feces—A Case Report

2020 ◽  
Vol 10 (1) ◽  
pp. 56-61
Author(s):  
Vishal Somnay ◽  
Thomas Duong ◽  
Ray-Young Tsao ◽  
Joseph A. Prahlow
Keyword(s):  
Case Report ◽  
Epithelial Cells ◽  
Critical Role ◽  
Crime Scene ◽  
Scene Analysis ◽  
Dna Testing ◽  
Forensic Dna ◽  
Forensic Dna Testing ◽  
Positive Results ◽  
Crime Scene Analysis

Forensic DNA testing can play a critical role in homicide investigations. Selecting the appropriate evidence on which to perform DNA testing requires foresight and reasoning based on experience and science. Although successful DNA testing can occur using many substrates, including blood, hair, and sweat/epithelial cells, positive results can also result from testing various unorthodox samples. The authors report on a triple-murder investigation where DNA testing of dog feces at the crime scene matched DNA testing of feces found on the shoe of a suspect resulting in successful prosecution of the case.

Sign in / Sign up

Export Citation Format

Share Document