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3D Reconstruction of unstained cells from a single defocused hologram
For phase objects, it is known that the amplitude contrast of the back-propagated object field at the focus plane is minimum and it increases at the defocus planes.
Quantification of Pollen Viability in Lantana camara By Digital Holographic Microscopy
Pollen grains represent the male gametes of seed plants and their viability is critical for efficient sexual reproduction in the plant life cycle.
Robust phase retrieval with complexity-guidance for coherent X-ray imaging
We observe that a single run of the RAAR-ER algorithm produces a solution with higher complexity compared to what is expected based on the complexity parameter as manifested by spurious high frequency grainy artifacts in the solution that do not seem to go away completely even after a number of trial solutions are averaged.
Quantitative phase imaging of single particles from a cryoEM micrograph
We show that de-focused single particle images recorded using a cryo-electron microscope (cryoEM) system may be processed like a Fresnel zone in-line hologram to obtain physically meaningful quantitative phase maps associated with individual particles.
Dictionary based Approach to Edge Detection
Edge detection is a very essential part of image processing, as quality and accuracy of detection determines the success of further processing.
Sparsity assisted solution to the twin image problem in phase retrieval
In particular, when the object support is centro-symmetric, the iterative solution often stagnates such that the resultant complex image contains the features of both the desired solution and its inverted and complex-conjugated replica.
