Proceedings of 3rd International Conference on Multimedia Technology(ICMT-13)

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226 articles

Design of 7-bit 16-MSample/s Low Supply Low Power Digital-to-Analog Converter

Lin Laizhuan, Li Zhiqun
In this paper, a 7-bit 16-MSample/s current-steering CMOS digital-to-analog (D/A) converter is presented. Current steering architecture consists of binary-weighted cells, the post-layout simulation results show that the SFDR and ENOB are more than 52.50 dB and 6.97 bit with a 1.984MHz input. The integral...

EziCity: A Rapid Landscape Design Framework of Virtual 3D City

Lan Jianliang, Ding Youdong
A framework of virtual 3D city aiming at rapid, interactive and intuitive landscape prototype design is presented in this paper. The conception or assembling phase of a virtual city is usually a laborious process, because the layout and manipulation of 3D scene objects often does not yield the expected...

Design of Low Power Low Phase Noise 5-GHz Frequency Synthesizer for WSN Applications

Feng Yushen, Li Zhiqun
WSN; frequency synthesizer; ACC; low power; low phase noise; phase switching; fast AFC.

Image encryption via projection-pursuit based blind source

Shiguang Luo, Changri Luo, Zhaoquan Cai
A novel image cryptosystem by using projection pursuit based blind source separation is proposed in this work, where the plaintexts need to be neither independent nor sub-independent. In the proposed cryptosystem, for encryption, the plaintexts are mixed linearly with each other first, and then mixed...

Research on Image Fusion for Visual and PMMW Images Using NSCT and Region Detection

Tang Shi, Xiong Jintao, Yang Jianyu, Peng Xinliang
In this paper, a novel image fusion algorithm based on Nonsubsampled Contourlet Transform (NSCT) and image segmentation is proposed, for the application of Passive Millimeter Wave (PMMW) concealed objects detection. PMMW and visual images are fused to get a better presentation of original images, maintaining...

A SPATIAL CALIBRATION METHOD BASED ON MASTER-SLAVE CAMERA

Shi Hao, Liu Yu, Lai Shiming, Zhang Maojun, Wang Wei
Recently the Master-Slave camera that composed by fish-eye panoramic camera and PTZ dome camera has been used in many areas. The fish-eye panoramic camera provides 180 degrees field of view (FOV) to monitor the overall situation but the objects are not able to be watched clearly. The PTZ camera can fixate...

Study on Quantitative Retrieval of Soil Organic Matter Based on Bare Soil Spectrum

Wang Jinliang, Qin Qiming, Dong Heng, Chen Chao, Meng Qingye
As we know, soil organic matter (SOM) is very important to the plant, especially for the crop. How to quickly access the information of SOM has become a major problem faced by many researchers. Now hyperspectral remote sensing technology became more and more useful in the retrieval of SOM. In this paper,...

Effect of HMM Parameter on Robustness of Chinese Isolated Words Recognition

De Liu, Mingjiang Wang, Zejun Wu
The characteristics of speech signals are stable in short-term but unstable in long-term, so speech sequence modeling method based on Markov Chain can more effectively represent the feature of speech signals. According to some basic modeling unit, this method can also constructs sentence model of continuous...

Background Subtraction Based Human Region Exaction Method

Cao Jing, Zhang Dong, Xu Dong, Wang Fang
This paper uses median method to build background, uses background subtraction method to detect the human region. Then, shadow elimination, morphological analysis, connected component analysis are used to solve the problem of noise point and cavities.

Video Error Resilience Scheme using Reversible Data Hiding Technique for Intra-Frame in H.264/AVC

Li Ranran, Wang Rangding
For the purpose of improving the quality of wireless video transmission, this paper proposed an error resilience scheme based on reversible data hiding to reconstruct lost blocks. The motion vector of each macroblock (MB) in Intra-Frame is extracted first. Then as the important data of each MB, it is...

Directional Bicubic Interpolation — A New Method of Image Super-Resolution

Jing Liu, Zongliang Gan, Xiuchang Zhu
Bicubic interpolation is a standard method in image interpolation field because of its low complexity and relatively good results. But as it only interpolates in horizontal and vertical directions, edges easily suffer from artifacts such as blocking, blurring and ringing. This paper proposed a new method...

Design of 500MHz Wideband RF Front-end

Liu Zhengqing, Li Zhiqun
This paper presents a design of 500MHz wideband RF front-end for P-band radar based on 0.18 mm RF process. The front-end works at the center frequency of 500MHz with 200MHz bandwidth, which transforms single-end signal to differential signal, amplifies it and mixes it with local oscillator signal, outputting...

Robust Estimation of Parameters for Lucas-Kanade Algorithm

Lin Yih-Lon
The object tracking problem is an important research topic in computer vision. For real applications such as vehicle tracking and face tracking, there are many efficient and real-time algorithms. In this study, we will focus on the Lucas-Kanade (LK) algorithm for object tracking. In the standard LK method,...

An Example-based Color Transfer and Style Enhancement Through Locally Neighbor Embedding

Tao Liu, Deng Daiguo, Wu Xuelian, Zeng Kun
Image color and tone adjustment are often used for style enhancement in image editing. In this paper we propose a new LLE-based image color transfer and tone enhancement method. Our target is to find the implicit color mapping rule between example image-pairs, then apply it to new image. Given a pair...

An effective framework of IBP for single facial image super resolution

Wang Cong, Li Weifeng, Wang Longbiao, Liao Qingming
Super-resolution was used to refine the LRI (low resolution image) which was acquired from the existing electric devices. Moreover, it is significant to do this work on the human face. To solve the special facial problem, a novel framework based on IBP (Iterative Back Projection) is proposed, in which...

Game Design Learning-Developing A Mobile Game

Wu Chun-Tsai, Chung Szu-Ming
In the digital multimedia curriculum, the practical project of creative productions isassumed to be the learning attainment in the process of integrating and applying of learning. This research adopted studio-based pedagogy to establish a project group of fourmembers and a mentoring teacher. They usedFacebook...

Engineering Application Research of Radio Wave Transmission Model in The Mountainous Region

Deng Na, Ding Xun, Tan Xu
Common terrain is mountainous in southern China, this terrain to the transmission coverage Engineering brings certain challenges, How to take advantage of existing knowledge combined with practical engineering experience to sum up a set of calculation methods suiting for mountainous areas, that is very...

Analysis of the Encoding Efficiency of 3D HEVC

Tian Tian, Jiang Xiuhua, Wang Caihong
This paper mainly studies currently developing 3D video coding based on HEVC. HEVC-based 3D video coding mainly focuses on 3DTV and auto-stereoscopic video compression system. A variety of new encoding tools, such as inter-view motion prediction and depth modeling modes, have been added in 3D HEVC. The...

Bagging Based Feature Selection for Dimensional Affect Recognition in the continuous Emotion Space

Chen Aihua, Yuan Shuai, Jiang Dongmei
This paper exploits the Bagging based feature selection method on the baseline audio features provided by AVEC2012 challenge competition. The selected features are input to SVR and RVM regression models, respectively, to estimate the affect dimensions arousal, valence, expectation, and power embedded...

Accurate and fast simulation of laser scanning imaging

Zhou Luyao, Ma Huimin
In order to design a more accurate simulation system of laser scanning imaging, a kind of new simulation method is put forward in this paper. By introducing the accurate laser model, this paper proposes a more precise echo power calculation formula. This method reproduces the edge blur effect in the...

Morphology classification and behaviors identification of birds in scientific video

Chen Can, Xiong Yan, Yan Baoping
Through the establishment of video sensor networks, allowing researchers to do long-term field observations better in their offices. But the study of morphology classification and behavior identification of animals from mass video data is very costly and time-consuming repetitive work. For this, we did...

Real-time Short Message Services Application to Reduce Operating Room Turnover Time

Leu Jun-Der, Chiu Yu-Hui, Ku Hsueh-Ling
This study examined the interaction between computerized operating room scheduling systems and operators. The study evaluated the management performance of operating room scheduling in terms of the turnaround time. Operating rooms deliver instant medical information regarding surgical patients to operators...

Research and implementation on a real-time microphone array sound source localization system

Peng Kui, Wu Xiaopei, Luo Yaqin, Gong Xiaoxiao
To carry out a real-time sound source localization system with a small amount of microphones, a specific implementation method is presented in this paper. This method comprises two steps: time delay estimation and position calculation. Firstly, the modified cross power spectrum phase algorithm (M-CPSP)...

An Example Based Non-local Mean Regularization For Image Super-resolution

Li Chuanhai, Hu Ruimin, Xia Yang
Image super-resolution (SR) is a very useful technique for visual surveillance, high-definition TV and medical image processing. In the traditional method, the inferred high-resolution image patch is represented as a linear combination of dictionaries obtained by training images, and least square estimation...

Video Text Extraction Based on Stroke Width and Color

Huang Xiaodong, Wang Qin, Liu Kehua, Zhu Lishang
Video text can be used to infer important semantics information of video. Video text extraction is a crucial step to recognize video text. Most of previous works can not extract the text well when the text regions have complex background or text character stroke width is unknown. Therefore, we propose...

Principal Component Analysis of Pinna’s Structural Details on HRTF

Qi Na, Feng Xuefei
Principal component analysis (PCA) was used to reduce dimension and simplify the analysis of HRTF amplitude spectra of dummy head installed with different artificial pinna model. In addition to no-pinna case, 4 kinds of structural model of pinna were discussed. Directional mean of the corresponding frequency...

The application research of blind adaptive filter

Lin Li, Shanji Chen
This paper described the principle and basic structure of blind deconvolution filter, it used blind adaptive algorithm, and adjusted coefficient automatically with the changed signal, in order to track the change of signal and realize the filtering finally. at last the performance of designed filter...

An Improved Scout Wireless Localization Algorithm

Shen Bing
The Scout localization algorithm based on probabilistic model employs on-site reference tags to calibrate real-time transmission parameters to provide high localization accuracy. However, this method requires high hardware consumption, due to the deployment of reference tags. Aim to tackle this issue,...

Codebook Design Method Based on Genetic Algorithm for Chinese Continuous Digital Speech Recognition

Wei Yanna, Zhao Liyan
Vector quantization is one of model training and pattern matching technologies with good performance which is applied to speech recognition at present. The traditional Linde-Buzo-Gray (LBG) algorithm is easy to get the local optimal result in the process of codebook design. According to capability of...

A Method to Solve Cold-Start Problem in Recommendation System based on Social Network Sub-community and Ontology Decision Model

Chen Meng, Yang Cheng, Chen Jiechao, Yi Peng
The paper presents a method to solve Cold-start problem in collaborative filtering recommendation system. Social sub-community is divided following analyzing exiting users’ history data and mining relationship between each other. Then ontology decision model is built in the basis of sub-community and...

A Comparative Study on Statistical Classification Methods in Relation Extraction

Zhang Xiaofeng, Gao Zhiqiang, Gui Yaocheng
This paper is a comparative study of statistical classification approaches in relation extraction and classification. The focus is on multiclass classification, not on sequence labeling. Five methods are evaluated, including naive Bayes (NB), decision tree (DT), k-nearest neighbor (kNN), support vector...

Research on Recognition Method of Chinese-Sensible Code Under Clutter Background

Fan Xinnan, Zhang Ji, Zheng Bingbin, Zheng Qingyuan
The Chinese-Sensible Code is the first two-dimension code standard of China who totally owns proprietary intellectual property rights. It has been widely used in books, bank drafts and managements of armed police vehicles. However, due to the characteristics of application environment and interference...

A Compressive Sensing-based Speech Signal Processing System for Wearable Computing Device in IPTV Environment

Lin Kuei-Hong, Lin Cheng-Hsun, Chung Kuo-Huang, Lin Kai-Shun
A design of compressive sensing (CS)-based speech signal processing (SSP) system for wearable computing device (WCD) in internet protocol television (IPTV) environment is proposed in this study. In WCD, the voice control would be an important function since the WCD is too small to provide typing device....

A Fast Mode Decision Algorithm Based On MVD

Zhao Huimin, Jiang Xiuhua, Wang Caihong
There are a lot of researches on acceleration the mode decision process in MVD video coding. The main goal of these researches lies in speeding-up the encoding process with negligible coding efficiency loss. Our work reveals the usage of depth information for speeding up video encoding process. We proposed...

Performance Measurement and Bottleneck Analysis for Streaming Media Servers

He Yan, Huang Haocheng, Yan Jinyao
With the rapid development of Internet and the popularity of media contents, the performance of stream media server is becoming an important factor for stream-media systems. By measuring and analyzing the performance constraints of the media server, we find the way to improve the performance of stream...

Fast Inter Prediction for H.264 to HEVC Transcoding

Chen Zong-Yi, Tseng Chi-Teng, Chang Pao-Chi
Owing to the high compression efficiency improvement of High Efficiency Video Coding (HEVC) standard, it is expected as a successor to H.264. The widely usage of H.264 today and the expected future adoption of HEVC raises a new demand for H.264 to HEVC transcoding. An efficient transcoding way is necessary....

Arnold Transform Based Image Scrambling Method

Li Min, Liang Ting, He Yu-jie
With the development of information security, the traditional image encryption algorithm has been far from to ensuring the security of images in the transmission process. This paper presents a new image encryption algorithm, which can improve the security of image during transmission more effectively....

MIMO-OFDM System Estimation via Three-Dimensional Channel Decomposition

Gong Guoqiang, Liu Junqing
This paper presents the analytic multiple-input multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) system model over correlated block fading channel using tensor. In order to reduce the estimated channel parameters, an algorithm of single value decomposition (SVD) is adopted to decompose...

CONTENT BASED ADAPTIVE SOCCER VIDEO TRANSMISSION USING QUALITY OF PERCEPTION RANKING

Hu Shenghong
The content based adaptive video transmission (CBAVT) plays a key role in the user oriented multimedia communication, which aims at mapping the importance criterion of user perceived contents to adaptive transmission at different network Quality of Service (QoS). Based on the compositions of information...

Design of Reconfigurable Low-pass Filter for 60GHz Wireless Communication

Liao Keyuan, Li Zhiqun, Li Qin, Wang Zhigong
A third-order Chebyshevlow-pass filter, using Gm-C structure, based on Nauta’s OTA, is presented. The filter is designed for 60GHz wireless communication using 65nm CMOS process and 1.2V power supply. The cutoff frequency of the filter is required to be tuned from 1GHz to 5GHz.UsingNauta’stransconductance...

Combining Text and Content Based Image Retrieval on Medical Resource Database

Li Wei, Li Bo, Cao Peng, Zhao Dazhe, Yang Jinzhu
An approach of medical image retrieval by combining diagnosis text and image content features is presented in this paper. In this approach, the system firstly extracts fusion features and semantic content from images and related text in medical resource database. In the second stage, a multi-modal query...

Efficiency of Frequency Selection in JPEG Steganography

Huang Fangjun, Joong Kim Hyoung, Zhang Dong
For joint photographic experts group (JPEG) steganography, which kinds of JPEG coefficients, i.e., the block discrete cosine transform (BDCT) coefficients that have been divided by the quantization steps and have been rounded, should be selected for data hiding is still an open problem. In this paper,...

Topology structures of the families of gray images

Wu N.
Let L be a subspace of Euclidean Space E1. USC(X,L) denote all regions below of upper semi-continuous maps from X to L and C(X,L) denote all regions below of continuous maps from X to L. For an infinite compact metric space X, USC(X,I) with Vietoris topology is homeomorphic to Hilbert cube Q and C(X,I)...

An Efficient Moving Target Tracking Strategy Based on OpenCV and CAMShift Theory

Li Dongyu
Image movement involved background movement and target movement. The complexities of movement increased the difficulty of target tracking. This study was implemented in the Window platform and the Microsoft visual C compiler environment, and used camera as a video capture device. The system of moving...

The Design and Implementation of Traffic Accident Identification System Based On Video

Xiang Chenwei, Wang Tuo
With the rapid growth of the count of vehicles, congestion and traffic accidents frequently occur. The situation triggers a series of social problems. The application research on computer vision and digital image processing system is presented in this paper provides a real-time method which identify...

An Approach of Image Retrieval for Natural Scenes based on Local Features and Topology

Yang Jun
Image retrieval problem is a hotspot research filed in recent decades since it has a wide range of applications. Topology studies which used for image retrieval has rare research. This paper has characterized the departure from the image, fully tap the characteristics of the image itself, using image...

Non-rigid Multi-modal Medical Image Registration: A Review

Xu Tingting, Wei Ning
Medical image registration is an important research topic in image processing field. It plays an important role in future analysis of medical images. Since in that field, the images are always obtained from different modalities and are deformed by non-rigid transform, the registration remains a challenging...

A shadow removal algorithm for ViBe in HSV color space

Yin-Shi Qin, Shui-Fa Sun, Xian-Bing Ma, Song Hu, Bang-Jun Lei
Shadow removal has always been one of the research hot topics in the field of computer vision. Recently, more and more attention was paid on the ViBe (Visual background extraction) foreground extraction algorithm for its simplicity and high speed. However, for the videos with moving cast shadows, the...

A Control Protocol Based on Binary Tree Conflict Resolution Algorithm Combined with Probability Detection and 1-persistent CSMA

Li Cuixian, Ding Hongwei, Guo Yingying, Zhao Yifan, Nan Jing, Zhang Tong
This paper puts forward a joint control protocol based on binary tree conflict-resolving algorithm combined probability detection and 1-persistent CSMA. Under the protocol, all terminals use the joint control protocol of p-detection and 1-persistent to access the channel before sending information packets,...

A hybrid encryption algorithm in the application of equipment information management based on Internet of things

Xu Peng, Li Min, He Yu-Jie
This paper established the system structure of Internet of things (IOT) and analyzed the security threats in practical application of IOT equipment management system. Meanwhile, proposed a hybrid encryption algorithm based on DES encryption algorithm and DSA digital signature, which can realize the electronic...