Detecting moving shadows: algorithms and evaluation

A Prati, I Mikic, MM Trivedi… - IEEE transactions on …, 2003 - ieeexplore.ieee.org
Moving shadows need careful consideration in the development of robust dynamic scene
analysis systems. Moving shadow detection is critical for accurate object detection in video …

Personal adaptive mobility aid for the infirm and elderly blind

G Lacey, SM Namara, KM Dawson-Howe - Assistive technology and …, 1998 - Springer
People with both visual and mobility impairments have great difficulty using conventional
mobility aids for the blind. As a consequence they have little opportunity to take exercise …

Analysis and detection of shadows in video streams: a comparative evaluation

A Prati, R Cucchiara, I Mikic… - Proceedings of the 2001 …, 2001 - ieeexplore.ieee.org
Robustness to changes in illumination conditions as well as viewing perspectives is an
important requirement for many computer vision applications. One of the key factors in …

On-line vehicle and pedestrian detections based on sign pattern

H Mori, NM Charkari… - IEEE Transactions on …, 1994 - ieeexplore.ieee.org
Real time detection methods of moving vehicles and pedestrians for navigation of the mobile
robot are proposed. The method is based on a locomotion strategy, viz. signature-based …

Development of a vision-based driver assistance system with lane departure warning and forward collision warning functions

JF Liu, YF Su, MK Ko, PN Yu - 2008 Digital Image Computing …, 2008 - ieeexplore.ieee.org
The objective of this research is to develop an advanced driver assistance system with lane
departure warning and forward collision warning functions. The main input of this system is a …

[PDF][PDF] Shared user-computer control of a robotic wheelchair system

HA Yanco - 2000 - dspace.mit.edu
An assistive robotic wheelchair system should allow its user to travel more efficiently and
with greater ease. The robotic wheelchair system described in this thesis, Wheelesley …

Development of the robotic travel aid “HITOMI”

S Kotani, H Mori, N Kiyohiro - Robotics and Autonomous Systems, 1996 - Elsevier
The Robotic Travel Aid (RoTA) is a motorized wheelchair equipped with vision, sonar, and
tactile sensors, in addition to a map database system. The visually impaired can get …

Fusing multiple 2D visual features for vehicle detection

C Hoffmann - 2006 IEEE Intelligent Vehicles Symposium, 2006 - ieeexplore.ieee.org
This contribution presents a multisensor fusion approach for vehicle detection. Shadow and
symmetry features, abstracted to 3D sensors by including street surface information, are …

HITOMI: Design and development of a robotic travel aid

H Mori, S Kotani, N Kiyohiro - … Applications in Robotics, User Interfaces and …, 1998 - Springer
Abstract A Robotic Travel Aid (RoTA) is a motorized wheelchair equipped with vision, sonar,
and tactile sensors and a map database system. A RoTA can provide a visually impaired …

Method and apparatus for estimating the velocity vector of multiple vehicles on non-level and curved roads using a single camera

CR Williams - US Patent 7,920,959, 2011 - Google Patents
702/141; 702/142; 702/150; 702/152; 702/153; Velocity vector, speed, and direction of
moving vehicles trav 345/419; 34.5/611; 34.5/612: 345/613: 345/614; eling on roadways …