Advanced Materials Research Vols. 989-994

Abstract: An adaptive gender recognition method is proposed in this paper. At first, do multiwavlet transform to face image and get its low frequency information, then do feature extraction to the low frequency information using compressive sensing (CS), use extreme learning machine (ELM) to achieve gender recognition finally. In the process of feature extraction, we use genetic algorithm (GA) to get the number of measurements of CS in order to gain the highest recognition rate, so the method can adaptive access optimal performance. Experimental results show that compared with PDA and LDA, the new method improved the recognition accuracy substantially.

Abstract: This paper presents a new PCM / FSK digital signal demodulation method. By using an adaptive least mean square error algorithm consider wave single frequency, the tracking signal, analyzes the envelope of the output signal, demodulate the PCM / FSK signal. This paper introduces the basic principles of this demodulation method and implementation process, analyzes the factors that affect the demodulation performance. Simulation results show that this method is superior to the differential demodulation performance, strong anti-jamming capability, ease of software programming and DSP devices achieve a certain value.

Abstract: An interpolated finite impulse response (IFIR) digital filter approach was purposed to improve the demerits of traditional finite impulse response (FIR) digital filter in the case of noise attenuation for dithered Ring Laser Gyroscope (RLG). Concentrated on the time delay and computation complexity, a comparison of FIR and IIR digital filter was illustrated. By optimizing the stretch factor L, an IFIR digital filter was designed to reach the requirements of a typical RLG. The static experiment results show that the impulse number is decreased from 250 to below 0.15, attenuation of the dither noise is nearly 100 dB and group delay remains the same level by 11.25ms.

Abstract: Predicting customer churn is of paramount importance in telecommunication companies. The taxonomy of churn reports that, not only individual constraints but also social factors can create users’ propensity to churn. This study uses real world call data records (CDR) to extract the social relationships among mobile phone users and build a multi relational social network, where the influence of users diffuses. The research is conducted to propose a framework that enhances the actionable value of social influence of predicted churners and to examine the parameters that control the churn information diffusion in the telecommunication networks.

Abstract: In order to obtain more robust face recognition results, the paper proposes an image preprocessing method based on average gradient angle (AGA). It is based on the fact that the central pixel and its neighbors are similar in the local window of an image. AGA firstly calculates the ratio between the relative intensity differences of a current pixel against its neighbors and the number of its neighbors, then employs the arctangent function on the ratio. The dimensionality of the AGA image is reduced by linear discriminant analysis to yield a low-dimensional feature vector. Experimental results show that the proposed method achieves more robust results in comparison with state-of-the-art methods in AR face database.

Abstract: In this paper, a feature representation method based on Kirsch masks filter for face recognition is proposed. We firstly obtain eight direction images by performing Kirsch masks filter. For each direction image, the low-dimensional feature vector is computed by Linear Discriminant Analysisis. Then, a fusion strategy is used to combine different direction image according to their respective salience. Experimental results show that our methods significantly outperform popular methods such as Gabor features, Local Binary Patterns, Regularized Robust Coding (RRC), and achieve state-of-the-art performance for difficult problems such as illumination and occlusion-robust face recognition.

Abstract: With the development of household appliances, the short of communication among them is more and more becoming a problem. At present there is no central point of control among the traditional home appliances, and we cannot access them through Internet. To solve these issues, home network is proposed to connect all the appliances, home PC and portable devices together using network technology. Controlling all the appliances through one single node ( the home network gateway), home network makes life much simpler and convenient. There are several local area network technologies applicable to home network. Bluetooth technology is chosen in this paper as the home networking technology due to its many advantages over others. The implementation scheme of home control sub-network based on Bluetooth serial part profile ( SPP) and the standards of Home Network Platform in China is proposed. According to actual application fields, the communication protocol architecture for this scheme is established by using appliance control protocol promoted by the manufacturers and universal device control protocol ( UDCP) over SPP. Many management functions of appliance terminals are realized such as appending, login, operation, logout and alarming. Implementation methods of appliance terminal based on an entirely embedded single-chip manner and mobile control terminal which is realized by computer simulation are proposed. Analysis and solution of baud rate error brought by inaccurate crystal frequencies are presented. Further discussion about applying ad hoc technology to home control sub-network is carried out.

Abstract: History archives, an important part of archives, records the historical process of social development and objectively reflects the process and outcome of problem-handling, decision-making, construction, research and development. With the development of reform, how to improve the management level of archives to provide the file information timely, accurately and completely to meet the demand and adapt to the new situation of development is a new topic in the archives work. The paper introduces advantages and problem brought by archives management in the environment of office automation, as well as suggestions to develop archives management.

Abstract: In 21st century, with the leaping advances in science and technology, computers and the rapid development of science and technology industry, formed by combining human intelligence and high-tech digital content industry that corresponds to the rapid development, and developing at an astonishing speed into a pillar industry of the knowledge economy in the new century. It is well known that digital media are based on digitized text, sound, images, Graphics, animation and video images as information carriers, through means of dissemination and development of science and technology. Basic characteristics of digital media arts: Cross uses online media which contains computer-animated production, the television advertising shoot, digital music player, there are activities such as online games, virtual reality, network, performance art, video, interactive installations and DV (digital video). This paper discusses the present status of digital media art, features, applications in education, vocational orientation and analysis of the development trend.

Abstract: With the rapid development of modern science and technology, the development of digital movie is increasingly fast, digital film technology has gradually become the mainstream trend in the development of film technology.And its significance for regulating the film industry and promoting the sustainable development of the film industry is very important.The standards of digital cinema technology and traditional film technology are different, and grasp the full digital film technology standards, to fully improve on it and in the practice of the implementation is very important for the development of digital film. Therefore, we must attach great importance to the digital film technology, to enhance the capability of independent innovation of our country, and constantly improve after repeated practice, make contribution to the promotion of China's movie industry prosperity