optical imaging based on intrinsic signals
Registration, atlas generation, and statistical analysis of high angular resolution diffusion imaging based on riemannian structure of orientation distribution functions 1
... Resolution Diffusion Imaging based on Riemannian Structure of Orientation Distribution Functions 23 3.1 Affine Transformation on Square-Root ODFs 25 3.2 Diffeomorphic Group Action on Square-Root ... regression based on FA, multivariate linear regression based on full tensor under Log-Euclidean metric, linear regression based on GFA extracted from ODF and geodesic regression directly on ODF ... population, which referred as HARDI -based atlas generation While the atlas generation techniques based on intensity images, including those based only on affine or non-linear registration methods...
- 36
- 350
- 0
Registration, atlas generation, and statistical analysis of high angular resolution diffusion imaging based on riemannian structure of orientation distribution functions 2
... variation, pioneered by [87], we consider the shapes as a manifold embedded in a high-dimensional space, where each shape is considered as a point on the manifold As a direct consequence of conservation ... operator in order to get a proper definition 2.2.2 Conservation Law of Momentum One can prove that mt satisfies the following property at all times [90, 91] Conservation Law of Momentum For all u ∈ V , ... generating the transformation Figure 2.3: Mapping one shape to another via the group action of diffeomorphic transformation On the right, the diffeomorphisim φ is shown on the square grid Using...
- 8
- 346
- 0
Registration, atlas generation, and statistical analysis of high angular resolution diffusion imaging based on riemannian structure of orientation distribution functions 3
... OF HIGH ANGULAR RESOLUTION DIFFUSION IMAGING BASED ON RIEMANNIAN STRUCTURE OF ORIENTATION DISTRIBUTION FUNCTIONS Figure 3.4: Illustration of diffeomorphic group action on square-root ODFs can ... RESOLUTION DIFFUSION IMAGING BASED ON RIEMANNIAN STRUCTURE OF ORIENTATION DISTRIBUTION FUNCTIONS that the b-value used in our acquisition is relatively low when compared to HARDI acquisition where ... ANGULAR RESOLUTION DIFFUSION IMAGING BASED ON RIEMANNIAN STRUCTURE OF ORIENTATION DISTRIBUTION FUNCTIONS Figure 3.13: Spatial distribution of mean squared error of spherical harmonics coefficients...
- 36
- 406
- 0
Registration, atlas generation, and statistical analysis of high angular resolution diffusion imaging based on riemannian structure of orientation distribution functions 4
... above computation is repeated until the atlas converges 69 BAYESIAN ESTIMATION OF WHITE MATTER ATLAS FROM HIGH ANGULAR RESOLUTION DIFFUSION IMAGING 4.4.1 Derivation of Update Equations of σ and ... harmonics of the ODF across subjects 60 4.1 General Framework of Bayesian HARDI Atlas Estimation HARDI data ODF Reconstruction Data Acquisition Subjects ODF images Registration serve as common ... a posteriori using the Expectation-Maximization algorithm and derive the corresponding update equations Finally, we illustrate the HARDI atlas constructed based on a Chinese aging cohort and compare...
- 26
- 404
- 0
Registration, atlas generation, and statistical analysis of high angular resolution diffusion imaging based on riemannian structure of orientation distribution functions 5
... atlas generation and registration, estimated deformations were applied to align each subject to the atlas space, using the rotation based reorientation scheme The rotation reorientation only aligned ... able to capture more regions with aging effects on white matter as compared to the conventional GFA -based regression The evolution of ODFs along the geodesic regression line depicts in great ... geodesic regression on ODFs of 4th-order 99 GEODESIC REGRESSION OF ORIENTATION DISTRIBUTION FUNCTIONS WITH ITS APPLICATION TO AGING STUDY √ Figure 5.7: Results of geodesic regression for simulated...
- 26
- 355
- 0
Registration, atlas generation, and statistical analysis of high angular resolution diffusion imaging based on riemannian structure of orientation distribution functions 6
... to capture more regions with age effect on white matter changes as compared to the conventional regression based on DTI The evolution of ODF fields along the geodesic regression line depicts in ... diffusion tensor imaging (DTI) or high angular resolution diffusion imaging (HARDI) Hybrid diffusion imaging (HYDI) [117] is a mDWI technique that samples the diffusion signal along concentric ... Diffeomorphic Metric Mapping of High Angular Resolution Diffusion Imaging based on Riemannian Structure of Orientation Distribution Functions IEEE Trans on Medical Imaging, 2011 65 129 REFERENCES [103] H...
- 22
- 389
- 0
Experimental realization and theoretical studies of novel all optical devices based on nano scale waveguides
... semiconductor -based all -optical switches include semiconductor optical amplifier (SOA) and more recently silicon photonics Implementation of ultrafast silicon photonic switch is largely based on ... transitions between optical and electrical domains, i.e Optical- toElectrical (OE) and Electrical-to -Optical (EO) or OEO conversions, which poses a lot of power consumption, space occupation, and ... device configurations, among which semiconductor -based all -optical processing devices have substantial interests due to the capability of realizing alloptical processing and optical interconnects...
- 234
- 504
- 0
Muscle force estimation and fatigue detection based on sEMG signals
... from non-fatigue state to fatigue state is still unclear In addition, for the types of muscle contraction aspect, most of fatigue detection studies concentrate on constant force contraction, while ... from one single contraction 67 Figure 4.4 Signal flow diagram for two muscle force estimation methods 68 Figure 4.5 sEMG signal from one single contraction and the corresponding scalogram contour ... Online Tests on Level Walking 129 6.3.3 Online Tests on Rehabilitation Robotic Device 132 6.4 Fatigue Detection Algorithm Real-time Implementation 135 6.4.1 Online Tests on...
- 176
- 361
- 0
Báo cáo " All-optical NAND and AND gates based on 3x3 general interference multimode interference couplers" pdf
... waveguides consisting of nonlinear material, IEICE Transactions on Electronics, vol E83-C (2000) 1755 [7] W Youfa, L Jianhua, All-fiber logical devices based on the nonlinear directional coupler, ... decision circuit is very difficult to achieve using an optical decision circuit In practice, the fluctuation of input signals strongly affects the power level of output signals Thus, an AND gate based ... Design of All -optical NAND and AND Gates based on 3x3 GI-MMI couplers Theory: The conventional MMI coupler has a structure consisting of a homogeneous planar multimode waveguide region connected to...
- 7
- 307
- 1
Báo cáo hóa học: "Research Article ISAR Imaging of Ship Target with Complex Motion Based on New Approach of Parameters Estimation for Polynomial Phase Signal" docx
... imaging algorithm of ship target based on the IHMPT is discussed in Section 4; the results for simulated and measured data are given in Section 5; Section is the conclusion for the paper = A0 exp j ... integration operation Hence, the IHMPT is appropriate for the parameters estimation of multicomponent CPS Furthermore, from the analysis above, we can see that the IHMPT requires only onedimensional ... section, we use the numerical example to demonstrate the effectiveness of IHMPT in the suppression of cross-terms for multicomponent CPS For convenience, we assume that the simulated signal consists...
- 9
- 412
- 0
Báo cáo hóa học: " Research Article An Algorithm for Detection of DVB-T Signals Based on Their Second-Order Statistics" doc
... decomposition has already been proposed in several contributions [14]; proposes to only exploit the term R(0) (N) to perform the detection In [13], the proy posed cost function is based on one term ... dB CONCLUSION In this paper, we have proposed a detection algorithm based on a cost function testing the cyclostationary property of the OFDM signals The noise and multipath channel impacts on ... of cyclostationarity,” IEEE Transactions on Signal Processing, vol 42, no 9, pp 2355–2369, 1994 ¨ [13] M Oner and F Jondral, On the extraction of the channel allocation information in spectrum...
- 9
- 254
- 0
Báo cáo hóa học: " Research Article Active Video Surveillance Based on Stereo and Infrared Imaging" doc
... illumination conditions to exploit visible imagery The estimated number of operations, performed for each frame when tracking persons, consists of about 5·105 operations for the identification and ... is an m-dimensional vector consisting of the concatenation of the m SOMs outputs (in our case, m = 3) This vector represents the input of the second level The recognition level consists of a neural ... Spatial localization Motion detection Feature integration Semantic class & class change Detection segmentation Characterization feature extraction Recognition Active tracking DB Automatic target...
- 8
- 276
- 0
Báo cáo nghiên cứu khoa học: " All-optical NAND and AND gates based on 3x3 general interference multimode interference couplers" pdf
... waveguides consisting of nonlinear material, IEICE Transactions on Electronics, vol E83-C (2000) 1755 [7] W Youfa, L Jianhua, All-fiber logical devices based on the nonlinear directional coupler, ... decision circuit is very difficult to achieve using an optical decision circuit In practice, the fluctuation of input signals strongly affects the power level of output signals Thus, an AND gate based ... Design of All -optical NAND and AND Gates based on 3x3 GI-MMI couplers Theory: The conventional MMI coupler has a structure consisting of a homogeneous planar multimode waveguide region connected to...
- 7
- 307
- 0
Báo cáo khoa học: " Potentials of on-line repositioning based on implanted fiducial markers and electronic portal imaging in prostate cancer radiotherapy" docx
... of patient position is based on skeletal landmarks imaged by electronic portal imaging devices (EPID) They are commonly used for the evaluation and correction of set-up deviations [7] As documented ... Radiother Oncol 1995, 37:35-42 Nederveen AJ, Dehnad H, Heide UA van der, van Moorselaar RJ, Hofman P, Lagendijk JJ: Comparison of megavoltage position verification for prostate irradiation based on bony ... Roy J, Dorion M: Electronic portal imaging device detection of radioopaque markers for the evaluation of prostate position during megavoltage irradiation: A clinical study Int J Radiat Oncol Biol...
- 9
- 300
- 0
Liver fibrosis surface assessment based on non linear optical microscopy
... Jablonski diagram of the Two Photon Excitation Fluorescence (TPEF) and Second Harmonic Generation (SHG) process 18 Figure Schematic illustration of the optical configuration Excitation laser ... third-harmonic generation, two-photon absorption, stimulated Raman scattering, optical bistability and phase conjugation Fluorescence is the optical relaxation phenomenon whereby light emission occurs in ... next divert our discussion towards the theory of second harmonic generation (SHG) We begin from Maxwell’s wave equation for a non-absorbing, non-conducting dielectric medium containing no free charges...
- 158
- 249
- 0
Carrier recovery for high speed coherent optical communication systems based on digital signal processing
... the orthogonality in optical communication for modulation and multiplexing purpose: orthogonality in time (e.g pulse position modulation); orthogonality in 16 2.1 Advanced Modulation Formats ... dispersion in the optical pulse becomes of serious concern One solution is to use dispersion compensation fiber (DCF), which has negative dispersion parameter, to cancel out the accumulated dispersion ... perform all-electronic chromatic dispersion (CD) and polarization-mode dispersion (PMD) compensation, frequency offset and phase noise mitigation, polarization de-multiplexing and so on [17–21] Therefore,...
- 169
- 709
- 0
PH DEPENDENCE OF THE OPTICAL BIO SENSOR BASED ON DNA SEMICONDUCTOR GRAPHENE NANORIBBONS
... the pH of solution varies, the dielectric constants of DNA and solution around the SGR change, it brings about the variation of effective dielectric constant Therefore, the optical signals of our ... of the exciton binding energy (16) pH-DEPENDENCE OF THE OPTICAL BIO-SENSOR 85 IV CONCLUSIONS This new combining structure of DNA and SGR is really interesting The biosensor based on DNA and GNR ... principle of this optical biosensor at the sub cellular level from DNA and semiconductor graphene ribbons It is proved that the AGNR-DNA based biosensors are more sensitive than CNT-DNA based biosensors...
- 6
- 251
- 0
Thermal error modelling of machine tools based on ANFIS with fuzzy c means clustering using a thermal imaging camera
... summation layers, respectively More information about the ANFIS network structure is given in [20] ANFIS model design consists of two sections: constructing and training In the construction section, ... less well conditioned when additional sensors are included Minimal effort is then required for practical application of discrete contact sensors that are used for on- line compensation The method ... which the application of masking tape with a known emissivity (0.95) is a common and effective solution The camera parameters are then set according to the measurement conditions considering the...
- 17
- 818
- 0
Báo cáo y học: "Gain of a 500-fold sensitivity on an intravital MR Contrast Agent based on an endohedral Gadolinium-Cluster-Fullerene-Conjugate: A new chance in cancer diagnostics"
... derivative was converted with thionyl chloride under standard conditions to the corresponding acidic chloride To a suspension of this acid chloride (2 mmol) in 20 ml CH2Cl2, a solution of 3-amino ... Hank’s solution containing 2% DMSO as a control After 25 minutes, the solutions were removed from the cells, then cells were washed twice with Hank’s solution and kept in Hank’s solution containing ... second intention within this manuscript was to consider the MRI-measurements, described below as a basis for determining MRI tomographical signals in comparison to the commonly used MRI contrast...
- 11
- 655
- 0
Metaphor, based on the association of similarity, is one of the two basic types of semantic transference that have been an interest for many linguistic researchers
... in the description of emotion in English poetry In the next session we will clear the concept of emotion ,metaphor emotion, and emotion in poetry III EMOTION AND POETRY Introduction No aspect of ... ideational meaning refers to the way one uses representational tools to compose the idea In the context stratum for example, functional components are concerned with field (what is going on in ... ideational systems of THING TYPE, CLASSIFICATION, EPITHESIS and QUALIFICATION, interpersonal systems of PERSON and ATTITUDE, and textual systems of DETERMINATION But the way the metafunctional contributions...
- 53
- 1,012
- 3
Tìm thêm: hệ việt nam nhật bản và sức hấp dẫn của tiếng nhật tại việt nam xác định các mục tiêu của chương trình xác định các nguyên tắc biên soạn khảo sát các chuẩn giảng dạy tiếng nhật từ góc độ lí thuyết và thực tiễn khảo sát chương trình đào tạo của các đơn vị đào tạo tại nhật bản khảo sát chương trình đào tạo gắn với các giáo trình cụ thể xác định thời lượng học về mặt lí thuyết và thực tế tiến hành xây dựng chương trình đào tạo dành cho đối tượng không chuyên ngữ tại việt nam điều tra với đối tượng sinh viên học tiếng nhật không chuyên ngữ1 khảo sát các chương trình đào tạo theo những bộ giáo trình tiêu biểu phát huy những thành tựu công nghệ mới nhất được áp dụng vào công tác dạy và học ngoại ngữ mở máy động cơ rôto dây quấn đặc tuyến hiệu suất h fi p2 đặc tuyến mômen quay m fi p2 đặc tuyến tốc độ rôto n fi p2 đặc tuyến dòng điện stato i1 fi p2 sự cần thiết phải đầu tư xây dựng nhà máy phần 3 giới thiệu nguyên liệu chỉ tiêu chất lượng theo chất lượng phẩm chất sản phẩm khô từ gạo của bộ y tế năm 2008 chỉ tiêu chất lượng 9 tr 25