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2013 Vol. 35, No. 10
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2013, 35(10): 2287-2293.
doi: 10.3724/SP.J.1146.2013.00131
Abstract:
In the past few years, as a type of image authentication technique without relying on pre-registration or pre-embedded information, the passive blind image forensics has become a hot issue in the field of information security techniques. In this pape...
In the past few years, as a type of image authentication technique without relying on pre-registration or pre-embedded information, the passive blind image forensics has become a hot issue in the field of information security techniques. In this pape...
2013, 35(10): 2294-2300.
doi: 10.3724/SP.J.1146.2012.01719
Abstract:
The necessary condition of the optimal pixel expansion is given and proved in (k, n) XOR-based Visual Cryptography Scheme (XVCS). A new method is designed for constructing (k, n)-XVCS by use of basis matrices. The method is proved to be suitable for ...
The necessary condition of the optimal pixel expansion is given and proved in (k, n) XOR-based Visual Cryptography Scheme (XVCS). A new method is designed for constructing (k, n)-XVCS by use of basis matrices. The method is proved to be suitable for ...
2013, 35(10): 2301-2306.
doi: 10.3724/SP.J.1146.2012.01615
Abstract:
ARIA cipher is a new block cipher proposed by some South Korean experts in 2003. The design principle of ARIA is similar to the AES. ARIA is established as a Korean Standard block cipher algorithm by Korean Agency for Technology and Standards. In thi...
ARIA cipher is a new block cipher proposed by some South Korean experts in 2003. The design principle of ARIA is similar to the AES. ARIA is established as a Korean Standard block cipher algorithm by Korean Agency for Technology and Standards. In thi...
2013, 35(10): 2307-2313.
doi: 10.3724/SP.J.1146.2013.00114
Abstract:
RoQ (Reduction of Quality) attack is more stealthy and changeable than traditional DoS (Denial of Service) attack, which makes detection of RoQ extremely difficult. In order to improve detection accuracy and locate attack sources in time, this paper ...
RoQ (Reduction of Quality) attack is more stealthy and changeable than traditional DoS (Denial of Service) attack, which makes detection of RoQ extremely difficult. In order to improve detection accuracy and locate attack sources in time, this paper ...
2013, 35(10): 2314-2320.
doi: 10.3724/SP.J.1146.2013.00545
Abstract:
Web service selection is a critical procedure for performance-enhancing in composite service. To find the best services from the candidate services, both the Quality of Service (QoS) requirements and functional requirements should be considered. Howe...
Web service selection is a critical procedure for performance-enhancing in composite service. To find the best services from the candidate services, both the Quality of Service (QoS) requirements and functional requirements should be considered. Howe...
2013, 35(10): 2321-2327.
doi: 10.3724/SP.J.1146.2012.01715
Abstract:
In a wireless acoustic sensor network where microphones are distributedly scattered, the microphone subset selection is usually based on the quality of the received signals on the microphones. However, it is difficult to evaluate it without knowing a...
In a wireless acoustic sensor network where microphones are distributedly scattered, the microphone subset selection is usually based on the quality of the received signals on the microphones. However, it is difficult to evaluate it without knowing a...
2013, 35(10): 2328-2334.
doi: 10.3724/SP.J.1146.2013.00056
Abstract:
Information of sensor percept are send to interested target node through sensor network. The multicast technology in traditional networks are usually more energy consumption, worse real-time. It is not fitted in sensor network. For nodes is unknown o...
Information of sensor percept are send to interested target node through sensor network. The multicast technology in traditional networks are usually more energy consumption, worse real-time. It is not fitted in sensor network. For nodes is unknown o...
2013, 35(10): 2335-2340.
doi: 10.3724/SP.J.1146.2012.01676
Abstract:
In the context of social network becomes more and more complicated and huge, it is difficult to improve the accuracy and performance of existing community detection algorithms only relying on the network topological features. Based on Markov random w...
In the context of social network becomes more and more complicated and huge, it is difficult to improve the accuracy and performance of existing community detection algorithms only relying on the network topological features. Based on Markov random w...
2013, 35(10): 2341-2346.
doi: 10.3724/SP.J.1146.2013.00153
Abstract:
With increase of storage devices, the data placements based on toleration single or double failures can not meet the requirement of the reliability in the distributed storage systems. On the basis of the Row Diagonal Parity (RDP) code for double tole...
With increase of storage devices, the data placements based on toleration single or double failures can not meet the requirement of the reliability in the distributed storage systems. On the basis of the Row Diagonal Parity (RDP) code for double tole...
2013, 35(10): 2347-2353.
doi: 10.3724/SP.J.1146.2012.01725
Abstract:
This paper proposes a proxy-based proactive caching approach for enhancing consumer mobility in Content Centric Networks (CCN). The approach requests proactively and caches the contents that a user does not receive but is requested before a handover ...
This paper proposes a proxy-based proactive caching approach for enhancing consumer mobility in Content Centric Networks (CCN). The approach requests proactively and caches the contents that a user does not receive but is requested before a handover ...
2013, 35(10): 2354-2358.
doi: 10.3724/SP.J.1146.2013.00130
Abstract:
This paper applies the random geometry theory to Decode-and-Forward (DF) relay-enhanced Orthogonal Frequency Division Multiplexing (OFDM) system and derives a new system capacity model finally. There are some assumptions that multiple users distribut...
This paper applies the random geometry theory to Decode-and-Forward (DF) relay-enhanced Orthogonal Frequency Division Multiplexing (OFDM) system and derives a new system capacity model finally. There are some assumptions that multiple users distribut...
2013, 35(10): 2359-2364.
doi: 10.3724/SP.J.1146.2013.00042
Abstract:
Since the underwater acoustic channel suffers often severe frequency-dependent attenuation, low speed of wave propagation and excessive multipath delay spread, the implementation of spectrum detection in Cognitive Underwater Acoustic Communication (C...
Since the underwater acoustic channel suffers often severe frequency-dependent attenuation, low speed of wave propagation and excessive multipath delay spread, the implementation of spectrum detection in Cognitive Underwater Acoustic Communication (C...
2013, 35(10): 2365-2370.
doi: 10.3724/SP.J.1146.2013.00028
Abstract:
In order to reduce the computational complexity, a fast inter-frame Prediction Unit (PU) mode decision algorithm is proposed for High Efficiency Video Coding (HEVC) based on the strong temporal correlation in video sequences. The correlation of PU mo...
In order to reduce the computational complexity, a fast inter-frame Prediction Unit (PU) mode decision algorithm is proposed for High Efficiency Video Coding (HEVC) based on the strong temporal correlation in video sequences. The correlation of PU mo...
2013, 35(10): 2371-2377.
doi: 10.3724/SP.J.1146.2013.00022
Abstract:
An adaptive wavelet packet image compressed sensing is proposed, in which the wavelet packet transform is used to decompose the image. After the image is decomposed, the properties of each packet wavelet block are analyzed with the introduction of ma...
An adaptive wavelet packet image compressed sensing is proposed, in which the wavelet packet transform is used to decompose the image. After the image is decomposed, the properties of each packet wavelet block are analyzed with the introduction of ma...
2013, 35(10): 2378-2383.
doi: 10.3724/SP.J.1146.2013.00195
Abstract:
Because of the multi-colinearity of the ill-conditioned mixing signals, it is difficult to solve the issue of underdetermined blind sources separation for ill-conditioned mixing signals in noisy environment by Sparse Component Analysis (SCA). The mod...
Because of the multi-colinearity of the ill-conditioned mixing signals, it is difficult to solve the issue of underdetermined blind sources separation for ill-conditioned mixing signals in noisy environment by Sparse Component Analysis (SCA). The mod...
2013, 35(10): 2384-2390.
doi: 10.3724/SP.J.1146.2013.00417
Abstract:
A novel method is proposed for segmentation of moving object using motion feature of edge in infrared videos. At first, a new index Motion Saliency of Edge (MSE) is defined. MSE can reflect the motion feature of edge points of an image based on the s...
A novel method is proposed for segmentation of moving object using motion feature of edge in infrared videos. At first, a new index Motion Saliency of Edge (MSE) is defined. MSE can reflect the motion feature of edge points of an image based on the s...
2013, 35(10): 2391-2396.
doi: 10.3724/SP.J.1146.2012.01743
Abstract:
Recommendations from Collaborative Filtering (CF) recommender algorithms have low timeliness. To solve the problem, an information aging-based collaborative filtering algorithm is proposed by combining information age method. The algorithm builds a m...
Recommendations from Collaborative Filtering (CF) recommender algorithms have low timeliness. To solve the problem, an information aging-based collaborative filtering algorithm is proposed by combining information age method. The algorithm builds a m...
2013, 35(10): 2397-2402.
doi: 10.3724/SP.J.1146.2013.00102
Abstract:
A trajectory mapping method, called MagCom, is proposed based on the geomagnetic perception of indoor mobile devices. MagCom gets the initial position by means of Wi-Fi localization technology, and then calculates the instantaneous position of users ...
A trajectory mapping method, called MagCom, is proposed based on the geomagnetic perception of indoor mobile devices. MagCom gets the initial position by means of Wi-Fi localization technology, and then calculates the instantaneous position of users ...
2013, 35(10): 2403-2410.
doi: 10.3724/SP.J.1146.2012.01569
Abstract:
Facial expression recognition is a popular and difficult research field in human-computer interaction. In order to remove effectively the differences in expression feature caused by individual differences, this paper firstly presents the feature poin...
Facial expression recognition is a popular and difficult research field in human-computer interaction. In order to remove effectively the differences in expression feature caused by individual differences, this paper firstly presents the feature poin...
2013, 35(10): 2411-2417.
doi: 10.3724/SP.J.1146.2012.01317
Abstract:
A new blood vessels automatic detection method in fundus image combing adaptive Pulse Coupled Neural Network (PCNN) and maximal categories variance criterion is proposed. In preprocessing, Contrast Limited Adaptive Histogram Equalization (CLAHE) and ...
A new blood vessels automatic detection method in fundus image combing adaptive Pulse Coupled Neural Network (PCNN) and maximal categories variance criterion is proposed. In preprocessing, Contrast Limited Adaptive Histogram Equalization (CLAHE) and ...
2013, 35(10): 2418-2424.
doi: 10.3724/SP.J.1146.2012.01650
Abstract:
A new low dose CT reconstruction model is proposed under the condition of low signal-to-noise ratio measured data, which are caused by reducing the X-ray source tube current in order to avoid the excessive radiation dose. In the objective function of...
A new low dose CT reconstruction model is proposed under the condition of low signal-to-noise ratio measured data, which are caused by reducing the X-ray source tube current in order to avoid the excessive radiation dose. In the objective function of...
2013, 35(10): 2425-2431.
doi: 10.3724/SP.J.1146.2012.01171
Abstract:
This paper presents a pattern recognition method for multiclass cancer molecular classification using evolutionary hypernetworks. A multiclass classification issue is decomposed into a set of binary classification issues by One-Versus-All (OVA) appro...
This paper presents a pattern recognition method for multiclass cancer molecular classification using evolutionary hypernetworks. A multiclass classification issue is decomposed into a set of binary classification issues by One-Versus-All (OVA) appro...
2013, 35(10): 2432-2437.
doi: 10.3724/SP.J.1146.2012.01311
Abstract:
A new method called generalized Multi-Window S-Transform (MW-ST) is proposed for blind Instantaneous Frequency (IF) analysis of complex emitter signals. The high concentration is achieved by employing the modified Hermite function. In this distributi...
A new method called generalized Multi-Window S-Transform (MW-ST) is proposed for blind Instantaneous Frequency (IF) analysis of complex emitter signals. The high concentration is achieved by employing the modified Hermite function. In this distributi...
2013, 35(10): 2438-2444.
doi: 10.3724/SP.J.1146.2013.00072
Abstract:
The dynamic task planning issue of early warning system of Low Earth Orbit (LEO) is described by the system resource and missile tracking task aspects, and the Dynamic Constraint Satisfaction Problem (DCSP) model of system dynamic task planning is bu...
The dynamic task planning issue of early warning system of Low Earth Orbit (LEO) is described by the system resource and missile tracking task aspects, and the Dynamic Constraint Satisfaction Problem (DCSP) model of system dynamic task planning is bu...
2013, 35(10): 2445-2452.
doi: 10.3724/SP.J.1146.2012.01685
Abstract:
Due to the problem of azimuth spectral folding and large migration and strong range dependence on the second range compression for high-squinted spotlight. This paper proposes a method combining the advantages of SPECtral ANalysis (SPECAN) with Exten...
Due to the problem of azimuth spectral folding and large migration and strong range dependence on the second range compression for high-squinted spotlight. This paper proposes a method combining the advantages of SPECtral ANalysis (SPECAN) with Exten...
2013, 35(10): 2453-2459.
doi: 10.3724/SP.J.1146.2012.01004
Abstract:
The combination of Frequency Modulation Continuous Wave (FMCW) and Synthetic Aperture Radar (SAR) leads to the rapid development of a compact, low power consumption, cheap and high resolution imaging sensor. A corrected signal model of FMCW SAR is bu...
The combination of Frequency Modulation Continuous Wave (FMCW) and Synthetic Aperture Radar (SAR) leads to the rapid development of a compact, low power consumption, cheap and high resolution imaging sensor. A corrected signal model of FMCW SAR is bu...
2013, 35(10): 2460-2466.
doi: 10.3724/SP.J.1146.2012.01689
Abstract:
A novel helicopter-borne Frequency Modulated Continue Wave (FMCW) ROtating Synthetic Aperture Radar (ROSAR) imaging method is proposed. Firstly, by performing the equivalent phase center principle, the separated transmitting and receiving antenna sys...
A novel helicopter-borne Frequency Modulated Continue Wave (FMCW) ROtating Synthetic Aperture Radar (ROSAR) imaging method is proposed. Firstly, by performing the equivalent phase center principle, the separated transmitting and receiving antenna sys...
2013, 35(10): 2467-2474.
doi: 10.3724/SP.J.1146.2012.01534
Abstract:
Carrying out 3-D imaging with multi-aspect SAR data is impressive to radar Automatic Target Recognition (ATR). This paper presents a multi-aspect SAR 3-D imaging technique based on compressive sensing, provides that the target scattering field is spa...
Carrying out 3-D imaging with multi-aspect SAR data is impressive to radar Automatic Target Recognition (ATR). This paper presents a multi-aspect SAR 3-D imaging technique based on compressive sensing, provides that the target scattering field is spa...
2013, 35(10): 2475-2480.
doi: 10.3724/SP.J.1146.2013.00140
Abstract:
Based on the geometry invariance of rigid target during its 3D motion, the targets unknown 3D shape is reconstructed from 2D images in this paper. Kalman filter and nearest neighbor method data association are used for scattering centers association ...
Based on the geometry invariance of rigid target during its 3D motion, the targets unknown 3D shape is reconstructed from 2D images in this paper. Kalman filter and nearest neighbor method data association are used for scattering centers association ...
2013, 35(10): 2481-2486.
doi: 10.3724/SP.J.1146.2012.01309
Abstract:
A novel range-spread target detection algorithm in Gaussian clutter is addressed for Stepped Chirp Modulated Radar (SCMR). For SCMR, the High Resolution Range Profile (HRRP) of a target is obtained by target extraction from overlapping HRRPs which is...
A novel range-spread target detection algorithm in Gaussian clutter is addressed for Stepped Chirp Modulated Radar (SCMR). For SCMR, the High Resolution Range Profile (HRRP) of a target is obtained by target extraction from overlapping HRRPs which is...
2013, 35(10): 2487-2492.
doi: 10.3724/SP.J.1146.2012.01149
Abstract:
With prior information of clutter covariance matrix of cells under test, knowledge aided detection methods for distributed targets without secondary data are researched based on Bayesian approach. First, for the heterogeneous clutter environment that...
With prior information of clutter covariance matrix of cells under test, knowledge aided detection methods for distributed targets without secondary data are researched based on Bayesian approach. First, for the heterogeneous clutter environment that...
2013, 35(10): 2493-2497.
doi: 10.3724/SP.J.1146.2013.00060
Abstract:
Sorting of radar emitters is a vital technology of the radar countermeasure system. To solve the problem that the traditional methods which are based on the Pulse Repetition Interval (PRI) can not sort the signal of PRI complex modulated effectively,...
Sorting of radar emitters is a vital technology of the radar countermeasure system. To solve the problem that the traditional methods which are based on the Pulse Repetition Interval (PRI) can not sort the signal of PRI complex modulated effectively,...
2013, 35(10): 2498-2504.
doi: 10.3724/SP.J.1146.2012.01614
Abstract:
This paper explores the theory of Compressive Sensing (CS) in radar and evaluates the perturbing effect on measurement noise, channel inference and radar system accuracy error. The performance of traditional Compressive Sensing Radar (CSR) are sensit...
This paper explores the theory of Compressive Sensing (CS) in radar and evaluates the perturbing effect on measurement noise, channel inference and radar system accuracy error. The performance of traditional Compressive Sensing Radar (CSR) are sensit...
2013, 35(10): 2505-2511.
doi: 10.3724/SP.J.1146.2013.00005
Abstract:
In bistatic MIMO radar system, all the clutter ridges are located in the same plane of the three- dimensional space. By using this characteristic, a weighted projection optimization based range-dependent clutter suppression method is presented. The c...
In bistatic MIMO radar system, all the clutter ridges are located in the same plane of the three- dimensional space. By using this characteristic, a weighted projection optimization based range-dependent clutter suppression method is presented. The c...
2013, 35(10): 2512-2517.
doi: 10.3724/SP.J.1146.2013.00121
Abstract:
Among the basic steps of low-altitude wind shear detection for airborne weather radar, the wind speed estimate accuracy is the most important affecting factors. In this paper, a novel method of wind speed estimation based on compressive sensing is pr...
Among the basic steps of low-altitude wind shear detection for airborne weather radar, the wind speed estimate accuracy is the most important affecting factors. In this paper, a novel method of wind speed estimation based on compressive sensing is pr...
2013, 35(10): 2518-2523.
doi: 10.3724/SP.J.1146.2013.00033
Abstract:
A spatial semantic model based method is proposed to solve the issue of automatically detecting geo-objects in high resolution remote sensing images. This method obtains firstly image segments through over-segmentation algorithm, and calculates the m...
A spatial semantic model based method is proposed to solve the issue of automatically detecting geo-objects in high resolution remote sensing images. This method obtains firstly image segments through over-segmentation algorithm, and calculates the m...
2013, 35(10): 2524-2431.
doi: 10.3724/SP.J.1146.2012.01511
Abstract:
A low noise interface circuit on chip is designed for capacitive micro-gyroscope with demodulation signal phase calibration technique. Fully differential trans-impedance amplifier structure is adopted in the readout circuits to optimize the noise per...
A low noise interface circuit on chip is designed for capacitive micro-gyroscope with demodulation signal phase calibration technique. Fully differential trans-impedance amplifier structure is adopted in the readout circuits to optimize the noise per...
2013, 35(10): 2532-2535.
doi: 10.3724/SP.J.1146.2012.01746
Abstract:
Multiplied by constant on modulo 2n operation(y=cx mod 2n), is widely used in the ciphers like Sosemanuk, RC6, MARS, and so on. This operation is recognized as a permutation with considerable diffusion, confusion and fine realization efficiency, wher...
Multiplied by constant on modulo 2n operation(y=cx mod 2n), is widely used in the ciphers like Sosemanuk, RC6, MARS, and so on. This operation is recognized as a permutation with considerable diffusion, confusion and fine realization efficiency, wher...
2013, 35(10): 2536-2540.
doi: 10.3724/SP.J.1146.2012.01574
Abstract:
Vaudenay (1999) proved that the permutation in Lai-Massey scheme should be an orthomorphism or almost orthomorphism. This paper mainly focuses on the principle of the function in Lai-Massey scheme, which is described by its resistance to differential...
Vaudenay (1999) proved that the permutation in Lai-Massey scheme should be an orthomorphism or almost orthomorphism. This paper mainly focuses on the principle of the function in Lai-Massey scheme, which is described by its resistance to differential...
