Detection and tracking of humans and vehicle targets using high definition television signals in urban areas

2007 ◽  
Author(s):  
Gene Greneker
Keyword(s):  
Urban Areas ◽  
High Definition ◽  
High Definition Television ◽  
Detection And Tracking ◽  
Tracking Of Humans

An Acoustic Charge Transport Imager for High Definition Television Application

1992 ◽  
Author(s):  
William D. Hunt ◽  
Kevin F. Brennan ◽  
Abbas Torabi ◽  
Christopher J. Summers
Keyword(s):  
Charge Transport ◽  
High Definition ◽  
High Definition Television ◽  
Acoustic Charge Transport

scholarly journals Analysis of Occlusion Effects for Map-Based Self-Localization in Urban Areas

Sensors ◽  
2021 ◽  
Vol 21 (15) ◽  
pp. 5196
Author(s):  
Yuki Endo ◽  
Ehsan Javanmardi ◽  
Shunsuke Kamijo
Keyword(s):  
Urban Areas ◽  
Structural Information ◽  
Average Error ◽  
High Definition ◽  
Geometrical Structures ◽  
Real Environment ◽  
Surrounding Environment ◽  
Localization Errors ◽  
Stable Estimation ◽  
High Level

A high-definition (HD) map provides structural information for map-based self-localization, enabling stable estimation in real environments. In urban areas, there are many obstacles, such as buses, that occlude sensor observations, resulting in self-localization errors. However, most of the existing HD map-based self-localization evaluations do not consider sudden significant errors due to obstacles. Instead, they evaluate this in terms of average error over estimated trajectories in an environment with few occlusions. This study evaluated the effects of self-localization estimation on occlusion with synthetically generated obstacles in a real environment. Various patterns of synthetic occlusion enabled the analyses of the effects of self-localization error from various angles. Our experiments showed various characteristics that locations susceptible to obstacles have. For example, we found that occlusion in intersections tends to increase self-localization errors. In addition, we analyzed the geometrical structures of a surrounding environment in high-level error cases and low-level error cases with occlusions. As a result, we suggested the concept that the real environment should have to achieve robust self-localization under occlusion conditions.

The American Record in Industrial Policy: Results of Programs for Troubled Manufacturing Industries

1994 ◽  
Vol 6 (3) ◽  
pp. 185-214
Author(s):  
Margaret E. Dewar
Keyword(s):  
Information Technology ◽  
New Technology ◽  
Manufacturing Industries ◽  
Foreign Competition ◽  
High Definition ◽  
Trade Restrictions ◽  
Technological Revolution ◽  
High Definition Television ◽  
Declining Industries ◽  
Manufacturing Sectors

As many manufacturing industries have declined and as much American manufacturing has become vulnerable to foreign competition, numerous groups have suggested that programs to intervene in specific manufacturing sectors could help. Proponents focus on aid to telecommunications, aerospace, information technology, and high-definition television, where an edge in new technology may be key to the industries' success, but they also touch on aid to declining industries. Opponents of trade restrictions often argue that policies should facilitate adjustment in industries injured by trade. Other groups call for a technological “revolution” in manufacturing to restore international competitiveness through programs to facilitate adjustment and to speed the transition to new kinds of manufacturing. Others, concerned about massive job losses in depressed manufacturing communities, have called for improving the welfare of workers and communities.

High‐definition television transmission at 600 GHz combining THz photonics hotspot and high‐sensitivity heterodyne receiver

2014 ◽  
Vol 50 (5) ◽  
pp. 413-415 ◽  
Author(s):  
G. Ducournau ◽  
F. Pavanello ◽  
A. Beck ◽  
L. Tohme ◽  
S. Blin ◽  
...  
Keyword(s):  
High Sensitivity ◽  
High Definition ◽  
Heterodyne Receiver ◽  
High Definition Television
Sign in / Sign up

Export Citation Format

Share Document