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This paper presents the results of the validation of a prototype vision measurement system for use in experiments on civil engineering structures. The system is tested against a uni-axial earthquake shake table designed to hold full-size masonry walls. We compare the reference earthquake signal, the forcing signal, and the observed signal in terms of displacement with time.
Annual increases in workstation capacity suggest that today between 5 and 15 times the computing power of 1994 should be available at roughly comparable costs. It there by becomes possible for a normal laboratory to provide at least approximately the computing power required for machine-vision-based control of robots. Experience with an experimental cell for automatic disassembly of used cars illustrates...
Gesture and motion evaluation provide an interface for a variety of human-computer interaction (HCI)applications. In particular, using human hand motions as a natural interface tool has motivated an active research area to conduct studies on modeling, analyzing and recognizing various hand motions. Recently, human-computer interaction has been a focus of research in vision-based gesture recognition...
In this paper we take a look at extensions of the Bag of Words model developed within the last few years. Namely the aggregation of vector residuals known as VLAD encodings and Fisher kernels and assess their performance for the classification task using multiple views. We also take a look at the triangular embedding strategy for classification in the compression domain. Our work focuses on using...
The usage of sensory information for automation systems like autonomous robots is rising. For these applications the accuracy of the sensory data is of high importance. This is also valid for the task of transport by throwing where a thrown object has to be caught based on trajectory predicting using input data of a stereo camera system. Here the positioning accuracy of such a system is examined under...
Bin picking has been a research topic for years because of the challenges in image processing, robot motion planning and tool system. However, much of the existing work is not applicable to most real world bin picking problems because they are too simplistic or not robust enough for industrial use. In this paper, we developed a robust random 3D bin picking system by integrating the vision system with...
We present in this paper a decentralized multirobot (aerial and ground) cooperation scheme for objects transportation. A team of ground mobile robots guided by a drone and a human operator moves in a coordinated way keeping a predefined formation in order to carry objects (tools, gas masks,…) in unsafe industrial areas. One ground mobile robot (leader) navigates among obstacles thanks to the waypoints...
Paper proposes a new computer vision technique for automatic navigation and object detection. Automated navigation using a single still camera (mono-vision) where depth information is not available directly is a challenging task. Marking path instead of objects is the technique used here. This is based on human perception. Proposed ‘Next Path Method’ (NPM) uses pattern matching of the paths using...
A finished product should be quality assured to meet the needs, expectations and requirements it is intended for. As quality through human inspection may lead to errors and may not be adequate for instant and mass production, current high speed production lines require automated inspection with precise critical objective measurements and high reliability. Image processing has become a key tool in...
This paper describes the development activity on a low cost high performance fruit grader employing distributed network architecture to interface the GigE machine vision camera and field IO devices. The fruits are transported over a dynamic conveyor and images are synchronously captured for frame analysis during triggered events. Geometrical features such as diameter, perimeter, area and circularity...
This paper introduces an inexpensive prosthetic hand control system designed to reduce the cognitive burden on amputees. It is designed around a vision-based object recognition system with an embedded camera that automates grasp selection and switching, and an inexpensive mechanomyography (MMG) sensor for hand opening and closing. A prototype has been developed and implemented to select between two...
The Pan-Tilt Unit (PTTJ) and camera composed a vision system, which can be used in vision measurement. In this paper, a new calibration method for this vision system using differential GPS (global positioning system) is described. The calibration method is an efficient solution for large field of view. The proposed method has advantages in speed, convenience and pertinence. The experimental results...
An assistive mechanism for implementing comfortable wheelchair locomotion for severely disabled people is presented. The main feature of the prototype is that the estimation of the direction of movement is decided solely by the patient without stressing him physically. This is successfully achieved by investigating the user's natural gaze behavior using eyeball tracking in NI LabView. The prototype...
In order to solve the problem of the traditional intelligent mower, which cannot cover the lawn area and operate complexly, a visual, wireless, autonomous mower system via machine vision is designed. Firstly, collect the image information of locale dynamically by the real-time camera which erected on the high bracket, and display on the monitor of PC, then draw a few mowing range or mowing patterns...
This paper presents a system for seamless integration of vision system with a robotic arm for part segregation. In this system geometric properties of the object are identified and a Robotic arm is used to segregate them based on shape and size. The entire process is achieved in three stages. At first, a camera captures the image of the object and its output is processed using image processing techniques...
Machine vision on Humanoid robot Nao, is homology with eye. The success of machine vision is heavily determined by interpretation process to get information of environment and object. This information will be used for decision making of robot action. On this research, machine vision will be applied for tictac- toe board game. This research will become stepping stone for machine vision method for robotic...
This paper presents the design and implementation of a didactic and flexible training module that contributes to the theoretical and practical development of academic training, this through a mechanical structure and a software that has the ability to perform multiple laboratory practices in different areas related to microcontrollers, computer vision, automation. The design consist of four blocks;...
Computer vision has advanced markedly in the last decade and has had new applications such as the analysis of the behavior of structures. The analysis of displacement and deformation of structures is an important process in Structural Health Monitoring (SHM). There are different techniques and devices for measuring strains and displacements, such as linear-variable-differential-transducers (LVDTs)...
Wide-Angle Fovea Vision Sensor (WAFVS) system was designed and developed being inspired from advantages of the human eye's functions. This system is characterized by its space-variant data acquisition property, i.e., the WAFVS captures a 120-degree wide-angle input image in which its resolution (or magnification) changes like the human visual acuity. As well-known, the human visual acuity is the highest...
This paper describes a monocular vision system for humanoid robots designed and built to compete in the Robo Cup Humanoid Kid Size League. The proposed vision system allows the robots to track a ball, identify goals, field lines, team mates and opponents, providing information such as distances and estimated location for the robots simultaneously, using threads. With experiments using the real robots...
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