Results 21 to 30 of about 2,809,179 (290)

Pengenalan Ekspresi Wajah dengan Metode Viola Jones dan Convolutional Neural Network

open access: yesKomputika, 2021
Saat ini penggunaan kecerdasan buatan berkembang dengan pesat, diantaranya dimanfaatkan untuk mengenali ekspresi wajah manusia. Ekspresi wajah manusia memiliki tingkat pengenalan yang kompleks.
Reza Rizki Reynaldo, Irfan Maliki
doaj   +1 more source

Transpose symmetry of the Jones matrix and topological phases [PDF]

open access: yesOptics Letters, 2008
The transmission Jones matrix of an arbitrary stack of reciprocal plane parallel plates which has been turned through 180 degrees about an axis in the plane of the stack is, in an appropriate basis, the transpose of the transmission matrix of the unturned slab with a change in the sign of the off-diagonal elements.
openaire   +3 more sources

Colored knot polynomials for arbitrary pretzel knots and links

open access: yesPhysics Letters B, 2015
A very simple expression is conjectured for arbitrary colored Jones and HOMFLY polynomials of a rich (g+1)-parametric family of pretzel knots and links. The answer for the Jones and HOMFLY is fully and explicitly expressed through the Racah matrix of Uq ...
D. Galakhov   +4 more
doaj   +1 more source

Extended-height magnetic matrices to increase ultra - fine mineral particle recovery [PDF]

open access: yesREM: International Engineering Journal
In response to the challenge of recovering particles smaller than -0.45 microns in Mineral Processing, GAUSTEC® has significantly enhanced the Wet High Intensity Magnetic Separation (WHIMS) technology.
José Pancrácio Ribeiro   +4 more
doaj   +1 more source

Methods and means of polarization-interference layer reconstruction and discrete phase scanning of jones matrix images of polycrystalline films of dehydrated bile

open access: yesБіофізичний вісник
Background: Modern methods of Mueller matrix polarimetry are aimed at determining the criteria and practical application of such markers in the differential diagnosis of pathological and necrotic changes in biological tissues of human organs. At the same
Юрій Ушенко   +3 more
doaj   +1 more source

Anisotropic dielectric susceptibility matrix of anisotropic medium

open access: yesScientific Reports, 2021
In this work, we introduce the concept of anisotropic dielectric susceptibility matrix of anisotropic medium for both nondepolarizing and depolarizing medium.
Wanrong Gao
doaj   +1 more source

Jones matrix reconstruction with undetected photons

open access: yesJournal of Modern Optics
We present a theoretical polarization tomography scheme within the QIUP framework that directly extracts key sample parameters from measured interference visibilities and phase shifts. This approach establishes constant bindings for transmission amplitudes and coherence terms, thereby reducing the number of unknowns required to reconstruct the sample's
Arya, Gaytri   +2 more
openaire   +2 more sources

Obtainment of Jones matrix from Mueller-Jones matrix

open access: yes, 2019
Mueller matrix of a deterministic optical medium can be represented by a vector state which is an eigenstate of a Hermitian matrix. It is shown that by means of the Hermitian matrix it is possible to find the Jones matrix apart from its overall ...
M. A. Kuntman, M. A. Kuntman (8217330)
core   +1 more source

Extended depth of focus using polarization-coded binary phase mask

open access: yesAdvanced Optical Technologies
IntroductionWe present a polarization-coded binary phase mask based on spherical aberration (BPM-SA), which is numerically investigated to extend the depth of focus.MethodsFirst, we generate the baseline binary phase mask by binarizing the fourth-order ...
Meera Nitwal, Nandan Singh Bisht
doaj   +1 more source

Phase Engineering of Nanomaterials (PEN): Evolution, Current Challenges, and Future Opportunities

open access: yesAdvanced Materials, EarlyView.
This review summarizes the synthesis, phase transition, advanced characterization spanning ex situ to in situ and operando techniques, and diverse applications of phase engineering of nanomaterials (PEN). It further outlines key challenges and future opportunities, such as phase stability, architecture control, and artificial intelligence (AI)‐driven ...
Ye Chen   +7 more
wiley   +1 more source

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