Optimized Asymmetrical Arcsine Phase Mask for Extending the Depth of Field
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Photonics Technology Letters"
DOI: 10.1109/lpt.2018.2845709
Abstract: With the development of wavefront coding technique, various x-y separable phase masks have been proposed for the purpose of extending the depth of field. In this letter, a new asymmetrical arcsine phase mask combing the… read more here.
Keywords: phase; extending depth; depth field; phase mask ... See more keywords
Multiplexing and encryption of images using phase grating and random phase mask
Sign Up to like & getrecommendations! Published in 2020 at "Optical Engineering"
DOI: 10.1117/1.oe.59.3.033105
Abstract: Abstract. Recent developments in the areas of image processing have guided a new paradigm for research work in communication of images over the internet. Hence, secure storage and retrieval of digital images is a demanding… read more here.
Keywords: phase mask; phase grating; random phase; images using ... See more keywords
Generation of non-iterative phase-only hologram based on a hybrid phase mask.
Sign Up to like & getrecommendations! Published in 2022 at "Applied optics"
DOI: 10.1364/ao.449555
Abstract: The random phase method and quadratic phase method are most widely used in the generation of non-iterative phase holograms. However, the former leads to the reconstruction being severely disturbed by speckle noise, with serious loss… read more here.
Keywords: phase mask; phase; non iterative; hybrid phase ... See more keywords
Sinusoidal-amplitude binary phase mask and its application in achieving an ultra-long optical needle.
Sign Up to like & getrecommendations! Published in 2022 at "Optics express"
DOI: 10.1364/oe.463393
Abstract: Optical needle has become a hot research topic in recent years, due to the excellent properties and potential applications. To achieve a sub-diffraction optical needle, there are three common methods including planar diffractive lenses, reflective… read more here.
Keywords: optical needle; bpm; amplitude; binary phase ... See more keywords
PS2F: Polarized Spiral Point Spread Function for Single-Shot 3D Sensing
Sign Up to like & getrecommendations! Published in 2022 at "IEEE transactions on pattern analysis and machine intelligence"
DOI: 10.48550/arxiv.2207.00945
Abstract: We propose a compact snapshot monocular depth estimation technique that relies on an engineered point spread function (PSF). Traditional approaches used in microscopic super-resolution imaging such as the Double-Helix PSF (DHPSF) are ill-suited for scenes… read more here.
Keywords: spread function; point spread; phase mask; point ... See more keywords