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This paper introduces a model to track bees on 2D video with a 50Hz frame rate. The model detects bees using background subtraction and colour thresholding, producing a binary image showing the bees as blobs. The blobs are then analysed to estimate the bees' positions, which are then used to track the bees in successive video frames. However, in the 50Hz video, bees move a significant distance from...
Time synchronization is a crucial component of WSN. As the rapid development of mesh network, firefly-inspired synchronization algorithm comes out for solving the synchronization issue of large-scale networks. But it usually has a short cycle for improving the sync rate. In this paper, a multiscale cycle synchronization strategy is proposed based on firefly-inspired algorithm for long cycle. First,...
Information entropy is often applied as one of masking effect in digital watermarking system. At present, some scholars have used entropy masking to improve the performance of their watermarking algorithm. This paper mainly introduces the entropy masking model in three different domains, and gives experiment report about utilizing spatial domain, DCT domain, and DWT domain entropy masking model in...
A dynamic response of liquid microlens using dielectric force was demonstrated using comparison between experimental and simulation results. The theoretical results of the simulation match fairly well with the experiment in liquid microlens with a diameter of 500 μm. An high speed motion camera with a speed of 3000 fps was used to capture the images of dynamic response for 500μm, 2mm and 5mm droplets...
With development of auto bit feeding technology, the auto bit feeding technology is one of main development directions of automatic drilling. The drilling quality can be improved in various drilling status, the accident rate in work, the labor intensity, and drilling costs can be reduced. The system composition and control principle of auto bit feeding are introduced, also is the auto bit feeding...
The sealing process of packer rubbers is analyzed by finite element methods with the ANSYS software in the paper. It introduces in detail the principles of the packer's sealing, elaborates the elementary theories of the finite element analysis and the methods to determine the model parameters, establishes the finite element analysis models of the packer rubbers, analyzes the relationship between the...
This paper proposes background segmentation methods that integrate color, Ibp contrast and motion cues so as to improve the segmentation results. The background color models based on GMMs are developed to describe the scene. Motion cues is presented to detect the legitimate moved foreground pixels combining with the background subtraction. Lbp contrast features are used to calculate the image contrast...
An evaluation method based on support vector regression (SVR) is put forward for the purpose of predicting subjective perceptions of automobile seat comfort. The inputs included fourteen seat interface pressure measures, three anthropometric. The output was an overall comfort index derived from occupant responses to a survey. In process of experimental data analysis, the algorithm of the least squares...
Broadcast encryption schemes are suitable for one-way content distribution and protection applications.However, most of the related papers are from the theoretical point of view, and there is something useful for implementation being overlooked. In this paper, we introduce the pay-TV system as a concrete implementation of broadcast encryption schemes, and simulate the transmission performance of four...
High cost and uncertainty are problems of marketing. Influential online product reviews are more powerful than firm's advertisements. The key of viral marketing is to discover the viruses for efficiently spreading product impressions. In this paper, a model combined with mining techniques and adaptive RFM is proposed to evaluate the influential power of online reviewers. The modified PMI equation...
Cognitive radio systems offer the opportunity to improve spectrum utilization while avoiding the interference to primary users. Secondary users must be aware of interference caused to primary users. Therefore cognitive radio network should take primary users into account and control their transmission power. This paper focuses on the coverage analysis of cognitive radio network and finds its coverage...
This paper explores e-government service adoption in Taiwan and citizen satisfaction, and builds a fitting grey relation analysis model for the evaluation of bureau/department performance. This study collected 10,652 cases between 2003/7/15 - 2007/4/30 from satisfaction quantity tables in the Kaohsiung City Service On Line System (KCSOLS) database. The results of e-government research imply that,...
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