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POSITION ACCURACY ANALYSIS OF A ROBUST VISION-BASED NAVIGATION
Navigation Space Resection 3D map
2018/6/4
Using images to determine camera position and attitude is a consolidated method, very widespread for application like UAV navigation. In harsh environment, where GNSS could be degraded or denied, imag...
ROBUST VISION-BASED POSE ESTIMATION ALGORITHM FOR AN UAV WITH KNOWN GRAVITY VECTOR
UAV machine vision external orientation estimation motion capture system
2016/11/11
Accurate estimation of camera external orientation with respect to a known object is one of the central problems in photogrammetry and computer vision. In recent years this problem is gaining an incre...
EVALUATION OF SIFT AND SURF FOR VISION BASED LOCALIZATION
Vision Based Localization Local Bundle Adjustment Feature Extraction performance evaluation
2016/7/28
Vision based localization is widely investigated for the autonomous navigation and robotics. One of the basic steps of vision based localization is the extraction of interest points in images that are...
Automatic lane detection in image sequences for vision based navigation purposes
Lane Detection Machine Vision Intelligent Transportation Systems Intelligent Vehicles
2015/8/25
Intelligent Vehicles, as a main part of Intelligent Transportation Systems (ITS), will have great impact on transportation in near future. They would be able to understand their immediate environment ...
Combining MEMS-based IMU data and vision-based trajectory estimation
Positioning and Tracking Vision-based trajectory Motion estimation IMU Data fusion
2014/7/23
This paper presents an efficient location tracking algorithm that integrates vision-based motion estimation and IMU data. Orientation and translation parameters of the mobile device are estimated from...
Low Cost Vision Based Personal Mobile Mapping System
Mobile Mapping System low cost vision navigation digital cameras GPS IMU automatic image matching bundle adjustment
2014/4/21
Mobile mapping systems (MMS) can be used for several purposes, such as transportation, highway infrastructure mapping and GIS data collecting. However, the acceptance of these systems is not wide spre...
COMPARISON AND ANALYSIS OF NONLINEAR LEAST SQUARES METHODS FOR VISION BASED NAVIGATION (VBN) ALGORITHMS
UAV Nonlinear Optimization Vision Based Navigation
2014/4/25
A robust scale and rotation invariant image matching algorithm is vital for the Visual Based Navigation (VBN) of aerial vehicles, where matches between an existing geo-referenced database images and t...
Design of automatic vision-based inspection system for solder joint segmentation
Automatic PCB inspection Segmentation of solder joints Illumination normalization
2009/12/14
Purpose: Computer vision has been widely used in the inspection of electronic components. This paper proposes a computer vision system for the automatic detection, localisation, and segmentation of so...
Vision-based Semi-Supervised Homecare with Spatial Constraint
Vision-based Semi-Supervised Spatial Constraint
2010/12/17
Vision-based homecare system receives increasing research interest owing to its efficiency, portability and low-cost characters. This paper presents a vision-based semi-supervised homecare system to a...
Vision-Based Semi-Supervised Homecare with Spatial Constraint
Intelligent homecare semi-supervised learning tracking action detection surveillance
2013/7/17
Vision-based homecare system receives increasing research interest owing to its efficiency, portability and low-cost characters. This paper presents a vision-based semi-supervised homecare system to a...
A Vision-Based Sign Language Recognition System Using Tied-Mixture Density HMM
Sign Language Recognition System Tied-Mixture Density HMM
2010/12/14
A Vision-Based Sign Language Recognition System Using Tied-Mixture Density HMM.
Vision-Based Sign Language Recognition Using Sign-Wise Tied Mixture HMM,
Vision-Based Sign Language Recognition Sign-Wise Tied Mixture HMM
2010/12/14
In this paper, a new sign-wise tied mixture HMM (SWTMHMM)is proposed and applied in vision-based sign language recognition (SLR). In the SWTMHMM, the mixture densities of the same sign model are tied ...