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Ever-growing popularity of smartphones has led to the equivalent growth in their related attacks and vulnerability exploitations. Especially, Android, one of the prominent smartphone operating system has grown its market share exponentially since its release in 2008. It is reported that malware targeting Google's Android platform has increased nearly six-fold in the third quarter of 2012. In this...
Recent years, people pay more attention on their culture and art education. Traditional art paintings as a major part of the culture of every country have been studied to identify the history and culture of a country. There are some applications have achieved to analyze the content or emotion of paintings. However, there are few people making a system that can classify paintings based on the author...
Software Engineering is concerned with systematic delivery of products and services which meet the requirement posed by system stakeholders. One better way to make requirements from stakeholders (problem domain) understandable to developers (solution domain) is to transform such requirements into features. These features can be seen to interact with each other to perform system functionality according...
This paper presents a map search system using Shape context and Bipartite graph matching. Shape context is using for measuring shape similarity and the recovering of point correspondences. After generated from the shape context, Bipartite Graph Matching leads the optimal correspondence between two shapes. For raising the recognition rate, Hierarchical description is used. Shape context is the method...
Images are often corrupted by impulse noise in the procedures of image acquisition and transmission. In this paper, we propose a novel denoising method, which is based on the decision-tree and edge-preserving techniques, for the removal of random-valued impulse noise. Extensive experimental results show that the proposed technique not only preserves the edge features, but also obtains excellent performances...
We have demonstrated a polarization sensitive cartilage and muscle imaging based on common path optical coherence tomography (CP-OCT) using near infrared source. The axial and lateral resolutions of our PS-OCT system are 9μm and 6μm, respectively. The internal structural information has been extracted by the real-time signal analysis (Fourier Transform) from the modulated spectral intensity depending...
How to keep local features of the mesh and adaptive subdivision becomes the research hotspot. Therefore, this paper proposes an adaptive subdivision algorithm with mesh segmentation. This algorithm puts forward a new method of the initial segmentation based on the mesh analyses of the regional growth. And on the basis of the Loop subdivision, the paper gives an adaptive subdivision that can effectively...
For improving environmental visual perception of indoor robots more accurate and faster, a new model based on image multi-feature fusion is proposed. The hierarchical match mode is used to match real-time collected images of indoor robot with various multi-directional and multi-state images in a database. After establishing a database of 1000 images, average accuracy, average recall ratio and average...
Abstract-A method of multichannel vibration data compression for induction machines based on quaternion discrete cosine transform (QDCT) were proposed in this paper. The three axis X,Y and Z vibration data were obtained by the multichannel sensor which placed On the testing point of the induction machine, X,Y and Z vibration data were constructed an pure quaternion sequence and was analyzed and compressed...
The steady advance and healthful development of new countryside construction must depend on the scientific planning. The planning must be based on the correct, complete and good-currency status maps. Aiming to the urgent needs in practice, four approaches to producing status base maps, including integrated approach, generalized approach, updated approach and real-surveyed approach, are comparatively...
It has been 50 years since the idea popped up that calculating systems can be made on the replica of the biological neural networks. Still, the development of this science branch made the improvement of these systems possible only in the last 25-30 years. Nowadays, neural computing is a very extensive, separate science. Its solid theory basis made it possible to use them to solve many kind of problems...
The development of a SOPC for matching fingerprint images is presented in this paper. The major motivation for this work is to develop a fingerprint image matching handheld module, which can overcome the limitation of original phase correlation based algorithm and has more reliability performance to rotated and noisy images. By aid of Fourier-Mellin transform (FMT), frequency domain features are extracted...
The scale invariant feature transform (SIFT) is a very efficient algorithm to extract and describe distinctive invariant features from images, and usually applied for many image applications such as object recognition, robotic mapping, and navigation. In the SIFT computation, the complexity of the feature description is quite high. Hence, it is desirable to have an efficient VLSI architecture to compute...
Image stitching are ideally suited for applications such as image stabilization, summarization, and the creation of panoramic mosaics. This paper proposes a approach to stitch images fast and with high quality.Image alignment algorithms can discover the correspondence relationships among images with varying degrees of overlap. In this process, they uses SIFT to look for the trait points, and uses...
This paper presents a method which based on Fourier-Mellin transform registration algorithm to rotate the archaic epigraph images correction without reference object. In our research range, we improve the traditional methods of edge detection based on the characters of archaic epigraph images, propose the block edge detection method and the multi-scale edge detection method based on Wavelet Transform...
In the process of producing copper bar, because of the cast copper billet, rolling equipment, rolling process and other reasons, the surface of copper bar appear some defects such as crack, scarring, roller printing, scratches, holes, scales, pitting, and so on. These deficiencies not only affect the appearance of the product, but more importantly reduce the product's corrosion resistance, abrasion...
There's myriad of accessible information deposited in Deep Web, and the amount of the information is increasing rapidly. With the development of web application, there're more and more online databases, which make Deep Web a hot research topic. For the convenience of searching information in Scientific Data Sharing Platform, this paper does research of Deep Web application, and presents a system architecture...
An improved shots clustering key-frame extraction algorithm based on entropy is presented. Using the color information in the video frames, the algorithm looks every frame of a shot as a special sample and selects appropriate feature. And then through the improvement of the clustering analysis of video sequences to acquire the center value of various classes and the membership degree of every sample...
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