Digital Holography
Measurement of three-dimensional stress field of RP model having a notch by using digital holography
... In this paper, three-dimensional stress field of RP model having a V-notch is measured by using digital holography. The model is made of acrylic transparent resin and tracer particles are dispersed. ...
7
Study of the Effects of the Magnetic Field on the Anodic Dissolution of Nickel With In-Line Digital Holography
... In-line digital holography, a newly developed technique in the field has been found to show several advantages in the study of the dynamic processes of the electrochemical reactions at the ...
13
Investigation of dynamic of unconsolidated materials using two-color digital holography
... In digital holography, numerical reconstruction of digitally encoded holograms is performed by use of a discrete version of the Fresnel transform associated with a ...of digital holograms computed ...
7
Strain Measurement Using Phase-shifting Digital Holography with Two Cameras
... Phase-shifting digital holography[1] is a convenient method to measure displacement and strain distributions on the surface of an ...shifting digital holography is ...
6
Mechanical behavior study of laminate composite by three-color digital holography
... Digital holography has become properly available since its confirmation was established in the 90’ s [7, ...for digital holography, ac- cording to the different possible schemes for the ...
6
Digital Holography, Digital Signal Processing, Optical Signal Processing, Inverse Problems, Compressive Sensing
... • The University of Auckland, “Methods for fast computation of scalar optical diffraction fields and a super-resolution method in digital holography”, October 2013. • The University of Br[r] ...
5
High resolution digital holography utilized by the subpixel sampling method
... A commonly applied resolution improvement tech- nique in digital holography is based on the synthetic aperture method, as presented in [4 – 7]. This method is based on either shifting a single sensor ...
10
Application of Super-Resolution Image Reconstruction to Digital Holography
... Holography has been widely used for 3D information record- ing and reconstruction. It records 3D objects in two- dimensional (2D) interference images and retrieves the intensity and phase of the objects from the ...
7
Encrypted Sensing Based on Digital Holography for Fingerprint Images
... We propose a novel biometric sensing technique for personal authentication in which fingerprint images are captured using an optical encryption method. This method can reduce the risk of data theft or leakage of personal ...
10
Resolution improvement methods applied to digital holography
... Different approaches have been developed to overcome the reduced resolu- tion in digital holography. Very early in the 1990s Wyrowski and Bryngdahl (1989) described a method to reduce speckle noise in the ...
298
Quantitative space bandwidth product analysis in digital holography
... in digital holography, recording and reconstruction, are analysed with respect to the ...in digital holography, are ...optimised digital holographic ...
26
Using In-line Digital Holography for Measuring the Diffusion of Active Janus Spheres
... Figure 11: Mean square displacement calculated for lag times of 1 second for a single silica sphere sedimenting freely in water for the x-y component of the motion.The fit is done with a[r] ...
29
Digital Holography using a Laser Pointer and Consumer Digital Camera Report date: June 22 nd, 2004
... of holography lies mainly in small-scale ...where holography is at a huge advantage, because the image can be refocused at any depth ('any' depth is not truly accurate; the depth of field that can be ...
18
The three dimensional flow field generated by a feeding calanoid copepod measured using digital holography
... off-axis holography, Tao et ...off-axis holography, this method enables measurement of particle locations to within 7·µm, and resolves about 200·particles·mm –3 ...
10
The Meta-Mechanics of Holography and How It Affects Architecture
... of digital technologies and the convergence of different scientific fields, is based on the specialization of design tools in such a way as to support and enhance the discussion around digital ...
5
Scanning Holography Using a Modulated Linear Pupil: Simulations
... of digital holography or computer-gene- rated hologram (CGH) was early proposed by Good- man, et ...from digital Fourier holograms is attained using su- perposition of reconstructed images obtained ...
7
Study of Parameters Effect on Holography Digital Image
... : Digital holography imaging method is presented for three-dimensional profile detection of the optical ...of holography have been known for decades, their practical applications have been ...
9
Investigation of crack origin in hybrid components with twocolor digital Fresnel holography
... Application of the proposed method is demonstrated through an investigation of mechanical causes of cracks inside a capacitance of an industrial PCB component. The component (capacitance) is cracked during the clamping ...
8
Some Applications of Holography to Study Strongly Correlated Systems
... old concept of Fermi-liquid theory and the BCS (Bardeen Cooper Schrieffer) the- ory. These newly found materials are considered inherently strongly coupled with no well-defined quasi-particles. Thus, perturbative methods ...
5
An investigation into the use of holography to measure temperature fields.
... on the modelo Modes of vibration of a surface are examined by observing the line interference fringes obtained by holo gram interferometry; fluid flow patterns in wind tunnel experi ments can be examined. At the ...
64