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The following topics are dealt with: multimedia computing; information networking; information security; communication security; network security; cultural heritage environment security; information privacy; social network; watermarking; multimedia search; multimedia mining; mobile Internet; wireless network security; network steganography; service-oriented architecture; services computing; and multimedia...
In this paper, we propose a novel algorithm for matching optical image to synthetic aperture radar (SAR) image based on scattered edge feature using relaxation Hausdorff distance combined with genetic algorithm. A method is presented to extract scattered edge feature from low signal to noise ratio (SNR) SAR image via statistical and ratio model. Based on the scattered edge image from SAR and optical...
IPTV transfers network TV signals based on IP protocol. Monitoring the IPTV data transmission quality is of great importance to the extensive deployment and persistent improvement of IPTV services. RFC4445 proposes the metric of MDI (Media Delivery Index) in which DF (Delay Factor)and MLR (Media Loss Rate) are utilized to do quantitative evaluation to the transmission quality of IP video. However,...
Image segmentation of hematocyte is a practice of computer medical detection which is based on the medical characteristics of hematocyte, the Computer Graphics, and Image Segmentation. In this paper, we have proposed anew color components' exchanging method on different color spaces for image segmentation. First, extract the color components of the original image, then exchange the order of color...
The purpose, in this paper, is to study the application and realization of voice control in Read Assistive device which is designed for people with visual Impairments. First of all, to analyse the basic principle of Voice recognition technology, on that basis, use MS Speech SDK to design a set of voice control interfaces , put them into the use of Reading Assistive device to improve the man-machine...
In this paper, we present a revised method to compute the similarity of traditional string edit distance. Given two strings X and Y over a finite alphabet, an edit distance between X and Y can be defined as the minimum weight of transforming X into Y through a sequence of weighted edit operations. Because this method lacks some types of normalization, it would bring some computation errors when the...
In this paper, a new rate adaptive control algorithm is proposed based on study of JPEG2000 rate control algorithm, in order to reduce the amount of bits sent to the arithmetic coder, without any significant changes into the standard architecture and without loosing performance. After wavelet transform, the coefficient is modeled as Gaussian distribution, but remove the offspring of the lowest frequency...
How to minimize the network redundancy and prolong network life are important problems while designing a coordinated multi-sensors coverage system. By adopting stochastic sensing model for each sensor node, this paper founds an optimization model for coordinated multi-sensors coverage problem. Then an improved genetic algorithm based on parallelism selection is presented. The simulation results show...
It is obtained that a new strong convergence theorem for nonexpansive mappings in the uniformly convex and smooth Banach spaces by using metric projection in this paper.
Based on a texture descriptor which intrinsically defines the geometry of textures using semi-local image information and tools from differential geometry, a fast active contour segmentation model for color texture image is proposed. In this model, we use the popular Bhattacharyya distance between the probability density function (pdf) to design the data fitting term which distinguishes the background...
With the rapid development of video streaming era, multipath video streaming comes as a promising solution. However, dividing the video into different sub-streams is still considered as an important challenge for researchers. In this paper, we propose an approach for generating multiple complementary descriptions of the video flow, then to couple these descriptions with the path diversity provided...
Scene change detection in videos is a primary requirement of video processing applications used for the purpose of generating data needed by video data management systems and digital rights management (DRM) systems. Scene change data can be used in DRM systems for effective IPR protection by means of watermarking and fingerprinting selected scenes. In this paper, we present a 2-pass algorithm for...
This paper presents a style transfer algorithm of caricature. Rather than transferring texture from one image to another globally, we introduce an interactive tool for local texture transfer of caricature. As the segmentation algorithm is not very satisfactory for complex case of human face and the caricature, we use a brush by which the user draws some strokes on the source and target images to indicate...
In recent years, research on dictionary design for sparse representation (SR) has changed from pre-defined to training. A Hierarchical K-means Clustering (HKC) dictionary training algorithm is proposed in this paper. The algorithm presents a framework for SR for a class of images. HKC used K-means clustering to generate atoms which is one to one corresponding to hyperplanes for approximating hyperspherical...
Noise interferences and the lack of observation data are two main problems when implementing blind source separation. This paper introduces a BASS method which eliminates noise interferences, and meanwhile, uses sparse component analysis to fit the undetermined situation. Firstly, based on the BASS mathematical model including linear noise affixed, we built a probability distributed model of the sparse...
In this paper, a new efficient method of computing modified discrete cosine transform (MDCT) in MP3 audio coding is proposed. We first define a scaled discrete cosine transform (SDCT), then convert N-point MDCT to N/2-point SDCT. Next we factor N/2-point SDCT matrix mathematically. The factored SDCT matrices are used to develop a fast MDCT algorithm for realizing N-point MDCT. We show that the proposed...
In the Korean Pine solid quantity's forecast technique, the characteristic of Korean Pine cone's shape is one of main parameters. This paper can provide the precise data for the Korean Pine solid quantity's forecast technique by segmenting the image of Korean Pine which is taken by the Filed Server. Considering of the complex background of Korean Pine image and the target of hollow contours, we proposed...
Video streaming is challenging in wireless networks due to the high loss rate and limited bandwidth. In video sequences, different part has different importance for reconstruction. Based on H.264 error resilient tool of datapartitioning, we apply UEP (Unequal Error Protection) to different data partitions. RS (Reed Solomon) coding is used for data partition A, whereas simple repeat-packet coding for...
In this paper, a new scalable clustering method named “APANC” (Affinity Propagation And Normalized Cut) is proposed. During the APANC process, we firstly use the “Affinity Propagation” (AP) to preliminarily group the original data in order to reduce the data-scale, and then we further group the result of AP using “Normalized Cut” (NC) to get the final result. Through such combination, the advantages...
This paper proposes an edge-adaptive interpolation algorithm for Super-resolution reconstruction. The objective is to recover high-resolution image from low-resolution image. At first, from a low-resolution image, a high-resolution image is formed by bilinear interpolation and its edges are detected. Then, the edge of the original high-resolution image is refined by two approaches: the first is based...
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