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Visual Multiple Object Tracking (VMOT) is an important computer vision task which has gained increasing attention due to its academic and commercial potential. There are many different approaches have been proposed to solve the problem. Compared with single object tracking which focuses on appearance model, motion model and other factors, multiple object tracking shares these common challenges, and...
Camera calibration is an essential part of 3D reconstruction. Conventional calibration methods require high precision equipment and sophisticated operations. Compared with that, Camera self-calibration is quite simple but with low precision, which leads to significant performance degradation of 3D econstruction. Therefore, a high precision selfcalibration method with simple operations is necessary...
Screen printing is a low cost and highly efficient printing technology. Its application to the fabrication of RF antennas is introduced in this study. Applications of screen printed antennas for RHU, frequency selective surfaces and energy harvesting applications are presented.
GPS/ODO fusion-based localization is always used for mobile robot in outdoor environment. This approach takes advantage of short-term accuracy of odometry measurement and the long-term correction by the GPS unit. Generally, to improve the localization accuracy, precise system model and sensor noise model are probed. In this paper, by taking the linear and nonlinear equality state constraints into...
Rail track extraction from the image can be used to determine the position of the rails ahead of a train, which is one of the fundamental tasks for vision-based driver support systems in railways. This paper introduces a method that extracts rails by matching the edge features of the real image to the candidate rail patterns which is parameterically modeled, and the geometric constraints of the rail...
Since automotive software contains many control flows, symbolic execution is an effective approach to generate test data for it. However, symbolic execution is cost expensive, so it is difficult to apply it directly. Moreover, parameters in automotive software are usually closely related to implement the same function, thus the constraints are dependent on other constraints in the entire path constraint...
Fisheye camera is finding increasing number of applications in robotic vision, visual surveillance, and other fields. But the use of super-wide angle fish-eye lenses causes strong distortions in the resulting images. A method for the correction of fisheye distortion using only single images and linearity of imaged objects is presented. Spherical projection is a simple and effective method to transform...
In the process of software evolution, software change information can help software developers and system analysts to get a better understanding of differential part of software. In this paper, we construct different versions of source code into abstract syntax trees, and use an improved tree matching algorithm which combines multiple string matching algorithms, bilateral best match strategy and predicate...
A network coding-based ARQ scheme is proposed for open flow based wireless networks by using an efficient combination strategy of lost packets. The combination strategy is designed to and compensates for the inherent computation arising in lost packet selection, thus improves not only the wireless throughput, but also the complexity. The simulation results shows the proposed scheme achieves about...
In this paper we study on automatic transmission method of vehicles in different throttle utilizing fuzzy technology. The hardware is PLC and HMI etc, the software is fuzzy rule. It is difficult to set up exact mathematic model, using practice experience of driver to form the fuzzy control rules in different throttle . The rules are stored in PLC`s memorizer and it come true controlling of vehicle...
This paper presents the electronic control device technology for loader work of the working process. By analyzing the process of shovel loader, the loader use the operating resistance to decide bucket of action, and use control technology which controls electro-hydraulic proportional directional control valve opening to adjust the angle and the speed of the bucket, so that the shovel loader can work...
Tedious checking calculation is need after the structure design of shaft parts. To avoid the troublesome and backward of traditional manual drafting and calculation on calibration of shaft parts, the computer-aided calibration system on strength of shaft parts was developed applying the embedded development language of AutoCAD, which lighten the workload of designers greatly. The computer-aided calibration...
Formaldehyde is not only a carcinogenic chemical, but also causes sick building syndrome. Very small amounts of formaldehyde, such as those emitted from building materials and furniture, pose great concerns for human health. A Health Canada guideline, proposed in 2005, set the maximum formaldehyde concentration for long term exposure (8-hours averaged) as 40 ppb (50 μg/m3). This is a low concentration...
The paper presents such a low-cost and simple 3D Scanner System. The necessary hardware is a hand-held line laser and two same standard cameras. The 3D scanner system is built by using simple methods to obtain 3D information of object. So it is very easy-to use, and the results can be satisfied by normal users.
Industrial analysis & forecasting system (IAFS) simulates and forecasts industrial macroeconomic cycle trend by analyzing the industrial data using various models. Currently, as a system, which should integrate multi-model and multi-data-source, IAFS has two bottlenecks in its development and application, i.e. models' update, reuse and system integration, and data update and integration. This...
In this work, the rare bacteria-like-sized particles were detected in real-world-like sample circumstances with high concentration interfering particles and fluorescein background using cytometric fashion by simultaneously detecting their fluorescence emission and scattering light on microfluidic device to demonstrate its application of identifying the foodborne pathogens in real world food samples...
After analyzing the curvature expression, the inflection points were given by the known planar cubic B'ezier control polygon information. Based on that, we proposed a brief algorithm that can obtain the shape feature points of cubic Bézier and B-spline curves. Experimental results show that the method is rapid, accurate, and robust.
We develop a method to construct tetrahedral mesh from contours in this paper. Each tetrahedron is generated under the supervision of the defined quality measure standard. This method reduces possibility of intersection between the segment and the triangle. Intersection test is sufficiently analyzed to guarantee that there is no overlap between tetrahedrons.
An electronic analytical detector was designed in this paper, which can measure composite indicators of harmful substances contained in fresh milk. The basic principle of the instrument measuring composite indicators was given firstly. Secondly the instrument structure and circuit design methods with parallel processing by a variety of sensors and processors were explained. On this basis, the mathematics...
This paper presented a new approach to address the frequently encountered Standing Phase Angle (SPA) reduction problem during a power system restoration process. The proposed method was based on a modified Genetic Algorithm (GA). The problem of the SPA reduction was modeled as a mixed discrete-continuous optimization problem with various constraints. The objective function that needed to be minimized...
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