Development of spatial and temporal phase evaluation techniques in digital holography 2

... two main types of phase evaluation techniques, i.e., spatial and temporal phase evaluation methods Typical spatial phase evaluation techniques are Fourier transform method, phase scanning approach, ... fringe patterns with phase shift of 0, π , π and 3π , and Fig 2. 21(b) shows a wrapped phase map extracted by using the phase- shifting technique 00 90 0 180 27 0 (a) (b) Figure 2. 21 Phase shifting ... Phase unwrapping methods can be divided into two types, i.e., spatial and temporal phase unwrapping 2. 8.1 Spatial phase unwrapping During the past several decades, many spatial phase unwrapping...

Development of spatial and temporal phase evaluation techniques in digital holography 1

... types of holographic techniques, such as off-axis digital holography (Schnars and Jüptner, 19 94a, 19 94b, 2002) and phase- shifting digital holography (Creath, 19 85; Yamaguchi and Zhang, 19 97; ... reviewed In the last part, CHAPTER ONE INTRODUCTION different spatial and temporal phase evaluation techniques are reviewed, and a postprocessing with spatial and temporal phase unwrapping is described ... small depth of focus The objectives of this research work are to develop new spatial and temporal phase evaluation techniques in digital holography, and to overcome the existing problems in some...

Development of spatial and temporal phase evaluation techniques in digital holography 3

... advantage in using the integration method is that after the phase of each pixel at each instant is determined by Eq (3. 38), phase unwrapping is not required in both temporal and spatial domains This ... phase- shifting error using the proposed algorithms in phase- shifting digital holography 81 CHAPTER THREE DEVELOPMENT OF THEORY 3. 3 Extension of the depth of focus In recent years, digital holography ... procedure to determine phase- shifting error is shown in Fig 3. 6 80 CHAPTER THREE DEVELOPMENT OF THEORY Recording of intensities I1 , I , I O , and I R Definitions of phase- shifting error detection...

Development of spatial and temporal phase evaluation techniques in digital holography 4

... holograms in phase- shifting digital holography is shown in Fig 4. 11 A linearly polarized laser beam (the wavelength of 635 nm) is collimated by using a spatial filter and a lens, and is then divided into ... in digital holography, and Fig 4. 10 shows a top view of the specimen and an area of interest (inside the black box) The concrete dimension is discussed in Section 5.2.2 Figure 4. 10 Top view of ... red, green and blue channels are (0 .42 , 0 .44 , 0 .46 , 0 .48 ), (0 .47 , 0 .49 , 0.51, 0.53) and (0.52, 109 CHAPTER FOUR SIMULATIONS AND EXPERIMENTAL WORK 0. 54, 0.56, 0.58), respectively Since two phase masks...

Development of spatial and temporal phase evaluation techniques in digital holography 5

... -51 -52 -53 -54 10 20 30 40 Pixel (b) -52 .7 -52 .8 -52 .9 Phase (Rad) -53 -53 .1 -53 .2 -53 .3 -53 .4 -53 .5 -53 .6 -53 .7 10 20 30 40 Pixel (c) Figure 5. 25 Phase variation along section A-A by (a) digital ... in Fig 5. 8(d) 50 100 100 Pixel Pixel 50 150 150 200 200 250 250 50 100 Pixel 150 200 50 100 Pixel 150 200 (b) (a) 50 Pixel 100 150 200 250 50 100 Pixel (c) 150 200 (d) Figure 5. 8 (a) A phase map ... 50 100 100 Pixel Pixel 50 150 150 200 200 50 100 150 Pixel 50 200 200 (b) (a) 50 100 100 Pixel 50 Pixel 100 150 Pixel 150 150 200 200 50 100 150 Pixel 200 (c) 50 100 150 Pixel 200 (d) Pixel 50 ...

Development of spatial and temporal phase evaluation techniques in digital holography 6

... CONCLUSIONS AND FUTURE WORK (4) In the temporal domain, detection and compensation of phase- shifting error in phase- shifting digital holography are also investigated Three novel methods, such ... step of the proposed algorithm plays an important role in the search of the phase- shifting error, and the proposed method can accurately detect the phase- shifting errors in phase- shifting digital ... jumps of the filtered wrapped phase map In many cases, a priori knowledge on fringe density distributions is useful in the selection or development of filtering algorithms and phase unwrapping...

Development of temporal phase analysis techniques in optical measurement

... variation of point B5; (b) wrapped phase value of point B5 and (c) continuous phase profile after unwrapping (point B5) 146 (a) Wrapped phase in spatial coordinate at 0.12s; (b) continuous phase ... value of point A6; (c) continuous phase profile after unwrapping (point A6) 151 Figure 5.46 (a) Wrapped phase in spatial coordinate at 0.092s; (b) continuous phase map obtained by phase scanning ... Method Phase Shifting Spatial Phase Analysis Carrier Fringe Technique Fourier analysis Temporal Phase Analysis Fringe Tracking Phase Scanning Method Fourier analysis Wavelet Wavelet Figure 1.1 Fringe...

Báo cáo hóa học: " Research Article Automatic Generation of Spatial and Temporal Memory Architectures for Embedded Video Processing Systems" docx

... following work (i) Automatic allocation of line buﬀers and frame buﬀers for embedded block RAMs and external RAMs, respectively (ii) Automatic address generation and interfaces for the two memory hierarchies ... width of the GMO, nlines is the number of required memory objects for an operator, and w p is the bit width representing a pixel The length of the GMO is equal to that of the memory objects forming ... RAM memory The graph illustrates the ﬁlter bandwidth requirement for a speciﬁed number of read/write (R/W) operations performed for each input data Two memory bandwidth limits are provided, 36and...

Australian School of Business School of Banking and Finance MFIN6201 EMPIRICAL TECHNIQUES IN FINANCE COURSE OUTLINE SEMESTER 2, 2009 pdf

... VT Alaganar Australian School of Business School of Banking and Finance Level 3, Room 349 9385-5856 vt.alaganar@iinet.net.au TBA The preferred communication with the course coordinator is via ... Student Learning Outcomes 1 1 LEARNING AND TEACHING ACTIVITIES 3.1 Approach to Learning and Teaching in the Course 3.2 Learning Activities and Teaching Strategies Error! Bookmark not defined ASSESSMENT ... units of credit and three contact hours per week 2.3 Summary of Course This course is a fast-paced, hands-on introduction to spreadsheet modelling in finance It will focus on using the dominant...

Development of optical phase evaluation techniques application to fringe projection and digital speckle measurement

... objective of this study is to develop optical phase evaluation techniques for fringe projection and digital speckle measurement, and to overcome existing problems in the area of optical fringe analysis ... developing process Digital speckle method refers to a broad range of speckle metrology techniques including TV holography (Butters and Leendertz, 1971), digital speckle photography (Burch and Tokarski, ... Linear coded profilometry 20 2.1.5 Removal of the carrier phase component 21 Digital speckle measurement 25 2.2.1 Difference of phases 27 2.2.2 Phase of differences 31 2.2.3 Direct phase- extraction...

Development and application of liquid phase microextraction techniques in the analysis of environmental pollutants

... drop -in- drop system The aqueous phase of the outer drop contained the analyte of interest and was continuously delivered and aspirated away throughout the sampling The analytical response of the instrument ... involves the use of hollow fiber combination with liquid- phase microextraction It can be categorized into two- ii phase microextraction, and three -phase microextraction or liquid- liquid -liquid microextraction ... aspiration of the ASP, following the first sampling cycle, ensures that both the OF and the ASP are periodically renewed, and thus the OF would be in contact with fresh aqueous sample having the initial...

Complex field analysis of temporal and spatial techniques in digital holographic interferometry

... or digital, the configurations of the recording system can be categorized into two kinds: in- line and off-axis Applications of in- line system are generally limited due to its interactive influence ... phase extraction methods -temporal analysis techniques 2.6 Temporal phase unwrapping of digital holograms As mentioned in the introduction chapter, digital holographic interferometry is highly ... Process flow of digital holographic interferometry 72 Fig 5.7 Spatial phase unwrapping 73 Fig 5.8 Spatial phase retrieval by CP method 74 Fig 5.9 Digital hologram in surface profiling experiment...

Báo cáo hóa học: " Spatial and temporal EEG dynamics of dual-task driving performance" pdf

... as: Lin et al.: Spatial and temporal EEG dynamics of dual-task driving performance Journal of NeuroEngineering and Rehabilitation 2011 8:11 • Inclusion in PubMed, CAS, Scopus and Google Scholar ... Coherence of Fluctuations in Performance and EEG Spectrum Electroencephalogy Clin Neurophysiol 1993, 86:23-35 31 Makeig S: Auditory event-related dynamics of the EEG spectrum and effects of exposure ... design of this study, and led the team to well finish it SAC participated in the design of the study, the acquisition of data, the analysis/interpretation of data, and the modification of paper...

Báo cáo hóa học: " Spatial and temporal dynamics of cellulose degradation and biofilm formation by Caldicellulosiruptor obsidiansis and Clostridium thermocellum" ppt

... by, ρv = ρa d (2) Results Temporal and spatial dynamics of C obsidiansis biofilm formation To visualize the process of biofilm formation by C obsidiansis on a model cellulose substrate, cells ... doi:10.1186/2191-0855-1-30 Cite this article as: Wang et al.: Spatial and temporal dynamics of cellulose degradation and biofilm formation by Caldicellulosiruptor obsidiansis and Clostridium thermocellum AMB Express ... predicted biofilm formation might facilitate cellulose degradation The direct observation and measurement of biofilm formation and cellulose degradation in this study suggests that only the portions of...

Báo cáo lâm nghiệp: "Spatial and temporal diversity of wood decomposer communities in diﬀerent forest stands, determined by ITS rDNA targeted TGGE" potx

... al and giving a more realistic view of total diversity [1] The use of internal transcribed spacer (ITS) primers to amplify fungal ITS of rDNA was originally described by White et al [32] and ... noticeable shifts in the young beech and native forest stands At the beginning of the study, a speciﬁc fungal community was found in the beech stand while its structure in the native forest was similar ... single bands did not necessarily originate from one species and that one band could contain Wood decomposer diversity in forests diﬀerent sequences [20] We tried to sequence several bands at...

Xem thêm