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This paper presents a fast vehicle recognition and vehicle retrieval system based on “bag of words”. In this system, the input is an image of vehicle and the vehicle will be identified automatically, it can also retrieve images which are similar to the input image. 3742 vehicle images which include 28 types of vehicles are collected as the image database. Features of these images are extracted and...
In the IEEE 802.11 wireless local area network (WLAN), when the number of node increases, the collision corresponding will increase, the channel utilization rate decline, the total throughput falls, which leads to system performance decline. In this paper, through in-depth analysis of the root cause of the problem, it designs a simple and effective solution - based on the number of nodes in the time...
In the conventional direct torque control (DTC) using space-vector modulation (SVM) of induction machine (IM) drives, at least three current sensors are needed. In this paper, a low-cost SVM-DTC strategy is proposed, in which only single current sensor is used. The position of voltage space vector is divided into two areas: effective and non-effective area. If it is located in the non-effective area,...
The paper mainly probes into the accuracy of applying the Region growth algorithm to MRI images segmentation. Firstly the researchers scan the adult volunteers to get stereotaxtic MRI images, then discern and segment them in two separate ways: Region growth algorithm and manual segmentation, and compare the differences in results. The outcome shows no obvious difference exists, so the Region growth...
Based on the method of image edge detection on gray weighted absolute correlation degree of Gray System Theory, a novel method for image edge detection is presented based on grey weighted absolute correlation degree and the classical Prewitt edge detection operator. The method is to take the Prewitt operator as reference sequence, and calculate the grey weighted absolute correlation degree of the...
Some problems occur during the course of applying CAI technology in industrial design. This paper analysis the existing problems and explores the way to solve them. It is unavoidable to teach the industrial design class under the support of CAI technology. It should avoid applying the multimedia technology in wrong area and making use of the specialty of CAI to optimize the quality of teaching.
Aimed at the talent-cultivation in the 21st century and the existing problems in university's science and engineering teaching, this article is intended to present one particular advanced teaching philosophy -- the life- focused teaching method, which encourages to blend life focused teaching into University's Science and Engineering education. Also, the tactics and methods about how to imbed the...
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