The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
This paper presents a multi-channel/multi-speaker 3D audio-visual corpus for Mandarin continuous speech recognition and other fields, such as speech visualization and speech synthesis. This corpus consists of 24 speakers with about 18k utterances, about 20 hours in total. For each utterance, the audio streams were recorded by two professional microphones in near-field and far-field respectively, while...
A vision calibration technique based on two states of static and motion was proposed for a vision-based automated guided vehicle. Firstly, intrinsic parameters, radial distortion parameters and external parameters were estimated using planar template in static scene, and then union model of correcting distortions was designed for three individual image distortion models. Finally, rotation and translation...
This paper addresses the problem of visual servo control for a five-degree-of-freedom robot manipulator to perform pick-and-place tasks. A new hybrid switched reactive-based visual servo control structure, inspired from a sensing-and-reaction behavior without the inverse interaction matrix computing, is proposed to handle this problem efficiently. The proposed structure is similar to the logic-based...
For a mobile robot, it is necessary to have the ability to move accurately and autonomously in an unknown environment. The identification of neighboring floor region is very important for robot localization. In this paper, we propose a method imitating the way of laser range finder for detecting the closest objects with the Canny edge detection. The identification of moveable floor region is important...
For a mobile robot equipped with a camera, the vanishing points detection is an important machine vision task necessary for various applications, such as mobile robot navigation and camera calibration. In this paper, a novel algorithm to detect the vanishing point in various indoor environments using an omnidirectional camera is proposed. The proposed algorithm contains three steps. In the first step,...
As a cell of flexible manufacturing system (FMS), automated guided vehicle (AGV) is widely used in factory. In this paper, we presented a novel technology used for vision-guided AGV. An embedded dual-core processor system with real-time operating system (RTOS) DSP/BIOS is designed for system manager and image processor. We adopt DSP TMS320DM642 as image processor and ARM LPC2210 as controller. The...
An intelligent vision-based automated guided vehicle (AGV) system is presented in this paper. Embedded system and high performance algorithms are designed to accurately detect the artificial guide line and landmarks. Real-time two dimensional image captured by a CCD camera is processed by DSP (digital signal processor), including filtering, segmenting and labeling connected component. Then the vision...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.