This paper presents a quantitative method for automatic identification of human pulse signals. The idea is to start with the extraction of characteristic parameters and then to construct the recognition model based on...This paper presents a quantitative method for automatic identification of human pulse signals. The idea is to start with the extraction of characteristic parameters and then to construct the recognition model based on Bayesian networks. To identify depth, frequency and rhythm, several parameters are proposed. To distinguish the strength and shape, which cannot be represented by one or several parameters and are hard to recognize, the main time-domain feature parameters are computed based on the feature points of the pulse signal. Then the extracted parameters are taken as the input and five models for automatic pulse signal identification are constructed based on Bayesian networks. Experimental results demonstrate that the method is feasible and effective in recognizing depth, frequency, rhythm, strength and shape of pulse signals, which can be expected to facilitate the modernization of pulse diagnosis.展开更多
Edge detection is a fundamental issue in image analysis. This paper proposes multirate algorithms for efficient implementation of edge detector, and a design example is illustrated.The multirate (decimation and/or int...Edge detection is a fundamental issue in image analysis. This paper proposes multirate algorithms for efficient implementation of edge detector, and a design example is illustrated.The multirate (decimation and/or interpolation) signal processing algorithms can achieve considerable savings in computation and storage. The proposed algorithms result in mapping relations of their z-transfer functions between non-multirate and multirate mathematical expressions in terms of time-varying coefficient instead of traditional polyphase decomposition counterparts.The mapping properties can be readily utilized to efficiently analyze and synthesize multirate edge detection filters. The Very high-speed Hardware Description Language (VHDL) simulation results verify efficiency of the algorithms for real-time Field Programmable Gate-Array (FPGA)implementation.展开更多
The aim of the present work is to introduce a pattern-based method for assisting the user during the temporal Requirement Specification （RS） phase. Indeed, since the user usually has to handle abstract notation as w...The aim of the present work is to introduce a pattern-based method for assisting the user during the temporal Requirement Specification （RS） phase. Indeed, since the user usually has to handle abstract notation as well as mathematical-based languages within this phase, RS is becoming more and more tedious and error-prone especially when dealing with complex systems. The authors＇ method begins by defining a new typology while taking into account all the common temporal requirements one may meet when specifying a system. Then, a literal word-based formal grammar able to express all the types of the identified requirements has been developed. Actually, the goal is to assist the user during the requirement identification with some means that are simple, intuitive, albeit rigorous. Finally, a generic set of observation patterns relative to the new time constraint taxonomy is defined. In practice, to check a given temporal constraint, its relative observation pattern is instantiated to obtain an observer that will stand for a watchdog for the associated requirement on the system.展开更多
One of the most important tools in film analysis is ＂segmentation＂, as defined by the major film theorist Christian Metz, with the help of the ＂great syntagmatic＂ （Grande Syntagmatique）; an array, which will gua...One of the most important tools in film analysis is ＂segmentation＂, as defined by the major film theorist Christian Metz, with the help of the ＂great syntagmatic＂ （Grande Syntagmatique）; an array, which will guarantee the classification of any kind of shot in any kind of film and its consequent decoding. The division into sections allowed a clinical approach of high validity, highlighting the hidden rhymes, the power of repetition, the underlying pulses of the film, ＂decoding＂, in a way, their soul; in essence their meaning. However, by the mid-1970s, the semiotics of cinema was considered outdated and unrealistic, mainly because it failed to solve a problem to which it was believed that it held the key to guarantee the ＂translation＂ of any abstract cinematic form. In this text, we attempt to explore what semiotics can do today and how far ＂segmentation＂ can take us in the face of a particularly ＂opaque＂ film, which is made of fragments of impressions, disparate elements and contrasts, such as The Tree of Life （2011） by Terrence Malick.展开更多
基金Project (No. 20070593) supported by the Scientific Research Fund of Zhejiang Provincial Education Department, China
文摘This paper presents a quantitative method for automatic identification of human pulse signals. The idea is to start with the extraction of characteristic parameters and then to construct the recognition model based on Bayesian networks. To identify depth, frequency and rhythm, several parameters are proposed. To distinguish the strength and shape, which cannot be represented by one or several parameters and are hard to recognize, the main time-domain feature parameters are computed based on the feature points of the pulse signal. Then the extracted parameters are taken as the input and five models for automatic pulse signal identification are constructed based on Bayesian networks. Experimental results demonstrate that the method is feasible and effective in recognizing depth, frequency, rhythm, strength and shape of pulse signals, which can be expected to facilitate the modernization of pulse diagnosis.
文摘Edge detection is a fundamental issue in image analysis. This paper proposes multirate algorithms for efficient implementation of edge detector, and a design example is illustrated.The multirate (decimation and/or interpolation) signal processing algorithms can achieve considerable savings in computation and storage. The proposed algorithms result in mapping relations of their z-transfer functions between non-multirate and multirate mathematical expressions in terms of time-varying coefficient instead of traditional polyphase decomposition counterparts.The mapping properties can be readily utilized to efficiently analyze and synthesize multirate edge detection filters. The Very high-speed Hardware Description Language (VHDL) simulation results verify efficiency of the algorithms for real-time Field Programmable Gate-Array (FPGA)implementation.
文摘The aim of the present work is to introduce a pattern-based method for assisting the user during the temporal Requirement Specification （RS） phase. Indeed, since the user usually has to handle abstract notation as well as mathematical-based languages within this phase, RS is becoming more and more tedious and error-prone especially when dealing with complex systems. The authors＇ method begins by defining a new typology while taking into account all the common temporal requirements one may meet when specifying a system. Then, a literal word-based formal grammar able to express all the types of the identified requirements has been developed. Actually, the goal is to assist the user during the requirement identification with some means that are simple, intuitive, albeit rigorous. Finally, a generic set of observation patterns relative to the new time constraint taxonomy is defined. In practice, to check a given temporal constraint, its relative observation pattern is instantiated to obtain an observer that will stand for a watchdog for the associated requirement on the system.
文摘One of the most important tools in film analysis is ＂segmentation＂, as defined by the major film theorist Christian Metz, with the help of the ＂great syntagmatic＂ （Grande Syntagmatique）; an array, which will guarantee the classification of any kind of shot in any kind of film and its consequent decoding. The division into sections allowed a clinical approach of high validity, highlighting the hidden rhymes, the power of repetition, the underlying pulses of the film, ＂decoding＂, in a way, their soul; in essence their meaning. However, by the mid-1970s, the semiotics of cinema was considered outdated and unrealistic, mainly because it failed to solve a problem to which it was believed that it held the key to guarantee the ＂translation＂ of any abstract cinematic form. In this text, we attempt to explore what semiotics can do today and how far ＂segmentation＂ can take us in the face of a particularly ＂opaque＂ film, which is made of fragments of impressions, disparate elements and contrasts, such as The Tree of Life （2011） by Terrence Malick.
