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Cone-beam X-ray luminescence optical tomography (CB-XLOT) plays an important role in in vivo small animal imaging study, which can non-invasively image the three-dimensional (3-D) distribution of x-ray-excitable nanophosphors deeply embedded in imaged object. However, CB-XLOT suffers from a low spatial resolution due to the ill-posed nature of optical reconstruction. To alleviate the ill-posedness...
Automatic identification of abnormal cervical cells, including feature representation, feature combination and classification strategy, is highly demanded in women's annual cervical cancer screenings. However, previous methods only deal with one or two of these three phases, and currently there is few complete framework for this problem. A novel three-phrase boosting framework is proposed for the...
This paper proposes a self-embedding scheme with variable payload for image protection. We divide the original image into blocks and classify them into three types according to their contents. Different amount of bits are assigned for compressing each type of blocks into the reference bits. We further encode all the reference bits by Random Linear Fountain (RLF) codes and embed them into the original...
Slice-parallel video coding with a fixed number of slices and uniformly allocated coding regions would cause extra waiting time among slice threads, especially when the encoding machine is also busy running other applications. In this paper, we propose to adaptively decide the number of slices before encoding each frame by computing the expected value of the coding time of the encoder under two kinds...
For a class of uniformly observable nonlinear multi-input-multi-output (MIMO) systems with unknown parameters in both state and output equations, an adaptive observer is designed in a constructive manner based on the techniques of high gain observer and adaptive estimation. The high gain adaptive observer for joint state and unknown parameter estimation is conceptually simple. The new algorithm makes...
In cognitive radio networks, the idle spectrum bands that cognitive users sensed are usually discontinuous. Only one idle spectrum band may not be able to fulfill cognitive users' bandwidth requirements. In order to let cognitive users access allocated spectrum bands successfully and further improve the efficiency of spectrum utilization, we propose spectrum aggregation-based graph coloring algorithm...
The design of CRT controller is studied, which is applied in the Speech Interactive System based on ASIC. CRT controller based on CPLD is presented. MCU flexible read and write to RAM with CPLD. Meanwhile, the simulation is also given based on Maxplus II. The simulating results prove that the design can reach the demand of real time exchanging, and has integrality, reliability and good applications...
Abstract-A novel topology of three-phase-bridge (3P-bridge) cascaded PWM rectifier was proposed and analyzed in this paper. The two-level cascaded 3P-bridge topology is composed of three basic cells and the basic cell is a three-phase voltage source PWM converter; the line voltages in AC side of the converter are produced through cascaded way. The analysis results showed that the proposed converter...
Electric Vehicles (EV) are promoted world-wide as an effective approach to address gasoline consumption and transportation emission problems. In China, state-owned electric power companies are taking the lead in Electric Vehicle (EV) charging infrastructure area, in which the EV charging facility network construction is a key topic. This paper introduces a quantitative EV charging facility planning...
In cognitive radio (CR) networks, cross-layer design is an important issue since the behavior of one protocol could affect the performance of others. However, for the energy-constraint CR networks, the previous works mostly focus on maximizing the throughput in physical or transport layer, rather than the energy efficiency of the end-to-end transmission control protocol (TCP). In this paper, we propose...
This paper proposes a Key-Frame-Free (KFF) prediction method for the medium-grain scalable (MGS) coding of H.264/SVC, in which the key pictures can be completely avoided to reduce the memory complexity and improve the coding efficiency. In our proposed method, the encoder employs a joint rate-distortion model to decide which quality layer is reconstructed and used for prediction of base quality macroblocks...
Mongolian lexical analysis is the first step in Mongolian information processing such as Chinese-Mongolian machine translation. In this paper, we introduce a statistic and rule based approach to solving the Mongolian word segmentation & POS tagging all at once. In this method, we use tree frame as basic statistical model. And then we combine the model with some rules to improve the lexical analysis...
RGB color signals encoding is more desirable for high resolution and accurate definition for saturations and hue. This paper presents a region adaptive inter-color prediction scheme for 4:4:4 RGB signals, which treats G component as a primary component and predicts B/R component from G component with different weighting factors based on different texture regions. The proposed algorithm demonstrates...
Rate control aims to maximize reconstructed video quality while adapting coding bit rate to the fluctuating network bandwidth. This paper proposes an easy rate control algorithm for H.264 video coding based on a novel ρ-q/Distortion model, whose data line shows quite a pleasing goodness-of-fit. Experimental results have demonstrated that, compared with rate control mechanism suggested in H.264 reference...
While navigation within complex information spaces is uneasy for all users, it is extremely difficult for visually impaired users who can not simply searching and browsing digital contents with a mouse. These users have to listen line by line using a screen reader program, which may be particularly inefficient in a large documents with complex structures and loose connections of relevant information...
In this paper, we define and study a novel problem which is referred to as Community Question Grouping (CQG). Online QA services such as Yahoo! Answers contain large archives of community questions which are posted by users. Community Question Grouping is primarily concerned with grouping a collection of community questions into predefined categories. We first investigate the effectiveness of two...
High-fidelity video coding tends to adopt the RGB coding, which directly reduces RGB inter-color redundancy without external color space conversion. This paper presents a region based inter-color prediction scheme for RGB signals, which treats G component as primary component and predicts B/R component from G component with different translation offsets based on different texture regions. Experimental...
In this paper, the sampling methods and digestion methods during mercury test in plants were reviewed and Aqua regia-hydrofluoric acid digestion and HNO3-H2SO4-V2O5 digestion were adopted to test plant samples located at a campus. The mercury testing results with two digestion methods were compared with each other, and the corresponding conclusions have been taken out.
Large-scale maximal coverage location problems (MCLP) are quite common in practices, but till now efficient solving methods for them are still quite limited. A new assignment algorithm was proposed in this paper to solve such large-scale MCLPs. In the proposed algorithm, the whole location space is first divided into small regions. Then a heuristic method based on marginal increment was designed to...
A typical coal used widely in the power stations in Shanghai area is adopted as the experimental coal type. A pilot-scale coal-combustion furnace was designed and constructed to study the mercury speciation and transformations in the flue gas under different conditions. The results showed that gaseous mercury in the tested coal products accounted for two thirds of total mercury and solid-state mercury...
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