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Articles by Zheng-Liang Huang
Total Records ( 7 ) for Zheng-Liang Huang
  Zheng-Liang Huang , Fa-Xin Yu , Shu-Ting Zhang , Yao Zheng and Ji-Xin Liu
  This study describes a reliability test method for reliability evaluation of MMICs (Monolithic Microwave Integrated Circuits) in product inspection applications. It takes advantages of the potentiality of various reliability test approaches, aiming at meeting the requirement of MMIC development. In this way, quicker realistic reliability assessment can be also realized for new products or those without historic data. Applications of this prediction model to real MMICs are illustrated and a general overview of the corresponding parameters’ influence is given. The results of this study indicate in order to predict the GaAs MMICs reliability in a fixed shorter time and smaller sample size, one can design the test based on the combination of empirical methods and statistical methods. This study proposed a reliability prediction combing Arrhenius method and Weibull statistical method and we find Weibull slope is important for the MMICs reliability characterization. The analysis predicts excellent reliability for MMICs based on Arrhenius method, Weibulll method and zero fails result.
  Hua Chen , Hao Luo , Fa-Xin Yu , Zheng-Liang Huang and Ji-Xin Liu
  This study proposes a progressive transmission method for satellite images based on the integer discrete cosine transform. It has two characteristics, low-complexity and lossless reconstruction ability. Besides, high quality intermediate image can be obtained at the early stage with a low bit rate. The reconstructed images visual quality at stage 4 is acceptable and the associated bit rate is approximately 0.2. In addition, when all stages transmission completed, the reconstructed image is accurately recovered. Experimental results demonstrate the effectiveness of the proposed method and show it outperforms the classical low-complexity progressive transmission method based on BPM. Our method can be used in many practical applications of satellite image transmission.
  Fa-Xin Yu , Jia-Rui Liu , Zheng-Liang Huang , Hao Luo and Zhe-Ming Lu
  With the development of astronautic techniques, the radiation effects on Integrated Circuits (ICs) have been cognized by people. Environments with high levels of ionizing radiation create special design challenges for ICs. To ensure the proper operation of such systems, manufacturers of integrated circuits and sensors intended for the military aerospace markets adopt various methods of radiation hardening. An overview of radiation hardening techniques for IC design is given in this study. First, seven major radiation damage sources, two fundamental damage mechanisms, five sorts of end-user effects and six types of single-event effects are introduced, followed by the brief introduction of radiation hardening techniques. Secondly, typical physical radiation hardening techniques are introduced. Thirdly, typical logical radiation hardening techniques are introduced. Fourthly, we propose our radiation hardening scheme for microwave power amplifier chip design. Here, a Radio-Frequency (RF) Power Amplifier (PA) is a sort of electronic amplifier employed to convert a low-power radio-frequency signal into a larger signal of significant power, typically for driving the antenna of a transmitter. Finally, we concluded the whole study.
  Zheng-Liang Huang , Shi-Ze Guo and Zhe-Ming Lu
  This study presents to construct special networks from images and then apply their topological properties to image retrieval. Each input color image is divided into three separate gray-level images in the RGB space. For each gray-level image, we view the 256 gray-levels as nodes and construct the Horizontal Gray-level Co-occurrence Network (HGCN) and Vertical Gray-level Co-occurrence Network (VGCN) by counting the number of horizontal and vertical occurrences for each possible gray-level pair. Based on the obtained six directed weighted networks HGCN_R/G/B and VGCN_R/G/B, we extract their topological features including in-degrees, out-degrees, in-strengths and out-strengths for image retrieval. Simulation results demonstrate the superiority of our features to some existing features in terms of P-R curve.
  Meng Shao , Zheng-Liang Huang , Long-Hua Ma , Zhe-Ming Lu and Xiao-Long Shi
  Security issues are increasingly obvious. An automated real-time online alarm system to ensure the safety of property and personality while considering numerous smart Terminal Equipments (TE) becomes a major challenge. At the same time, this is representative of novel and emerging alarm system for assisted living in the daily life. Two problems of current alarm system are identified. A smart Cyber-Physical Alarm System (CPAS) based approach is proposed to address these problems. A prototype system installed in a house to assist living has been running stably and shows quite promising performance.
  Zheng-Liang Huang , Zhe-Ming Lu , Fa-Xin Yu and Yong Zhang
  Fast face detection is very essential for many applications such as video surveillance and human computer interface. This study presents a fast face detection method using the HSV-based skin color model under non-constrained scene conditions. First, a skin color model that combines the HSV color space with K-L transform-based skin color filter is designed. Then, skin regions in the input image are detected and face candidates based on the spatial arrangement of these skin patches are generated. Finally, the mouths in all of the candidate human face regions are verified by a mouth detector. Experimental results show that the proposed scheme is not only fast and efficient, but also robust to head rotation.
  Hao Luo , Fa-Xin Yu , Hui Li and Zheng-Liang Huang
  This study proposes a novel simple scheme for color image encryption. The RGB color components of the input image are permuted and transformed into the YCbCr color space. Then three simultaneous equations are constructed for secret sharing of the luminance and two chrominance components. After several iterations, the output of this equation set is the encrypted content. These encrypted channels are recomposed to the encrypted image. In image decryption, we merely need to solve the simultaneous equation set based on Largrange’s interpolation with several inverse iterations. The decrypted image is of very high quality for only slight degradation is introduced due to the color space mapping. Security of our scheme is well preserved as long as the permutation key kept secret. Experimental results validate the effectiveness of the proposed method.
 
 
 
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