Journal ArticleDOI
A Low-Cost Monocular Vision-Based Obstacle Avoidance Using SVM and Optical Flow
Ajay Shankar,Mayank Vatsa,P. B. Sujit +2 more
- Vol. 06, Iss: 04, pp 267-275
TLDR
A novel algorithm is proposed, termed as Pyramid Histogram of Oriented Optical Flow ([Formula: see text]-HOOF), which distinctly captures motion vectors from local image patches and provides a robust descriptor capable of discriminating obstacles from nonobstacles.Abstract:
Development of low-cost robots with the capability to detect and avoid obstacles along their path is essential for autonomous navigation. These robots have limited computational resources and paylo...read more
Citations
More filters
Posted Content
Distributed proximal gradient algorithm for non-smooth non-convex optimization over time-varying networks
TL;DR: In this article, a distributed proximal gradient algorithm for non-smooth non-convex optimization problem over time-varying multi-agent networks is presented, where each agent updates local variable estimate by the multi-step consensus operator and the proximal operator.
Journal ArticleDOI
Non-horizontal target measurement method based on monocular vision
TL;DR: In this paper , a monocular vision measurement method for the non-horizontal target is proposed, based on the principle of camera imaging, internal and external parameters of the camera and analogue-to-digital conversion principle.
Journal ArticleDOI
Distributed Proximal Gradient Algorithm for Nonconvex Optimization Over Time-Varying Networks
TL;DR: In this article , a distributed proximal gradient algorithm for nonsmooth nonconvex optimization problem is proposed, which updates local variable estimates with a constant step-size at the cost of multiple consensus steps, where the number of communication rounds increases over time.
Journal ArticleDOI
Distributed proximal gradient algorithm for non-convex optimization over time-varying networks
TL;DR: In this paper , a distributed proximal gradient algorithm for non-smooth non-convex optimization problem is proposed, which updates local variable estimates with a constant step-size at the cost of multiple consensus steps.
Proceedings ArticleDOI
Understanding the Influence of Random Impulse Noise on Visual SLAM
TL;DR: Zhang et al. as discussed by the authors study the influence of random impulse noise in images on the localization accuracy of visual SLAM, and reduce these influences by denoising and removing mismatches.
References
More filters
Journal ArticleDOI
LIBSVM: A library for support vector machines
Chih-Chung Chang,Chih-Jen Lin +1 more
TL;DR: Issues such as solving SVM optimization problems theoretical convergence multiclass classification probability estimates and parameter selection are discussed in detail.
Journal ArticleDOI
The computation of optical flow
TL;DR: The computation of optical flow is investigated in this survey: widely known methods for estimating optical flow are classified and examined by scrutinizing the hypothesis and assumptions they use.
Journal ArticleDOI
An ultrasonic sensor for distance measurement in automotive applications
Alessio Carullo,M. Parvis +1 more
TL;DR: In this article, an ultrasonic sensor that is able to measure the distance from the ground of selected points of a motor vehicle is described, which is based on the measurement of the time of flight of a ultrasonic pulse which is reflected by the ground.
Journal ArticleDOI
Obstacle avoidance using flow field divergence
Randal C. Nelson,J. Aloimonos +1 more
TL;DR: It is shown that a quantity termed the directional divergence of the 2-D motion field can be used as a reliable indicator of the presence of obstacles in the visual field of an observer undergoing generalized rotational and translational motion.
Proceedings Article
Robot navigation inspired by principles of insect vision
TL;DR: In this paper, a number of elegant strategies that can be profitably applied to the design of autonomous robots are described, such as the "peering" behaviour of grasshoppers and the "centring" response of bees flying through a tunnel.