Results 21 to 30 of about 111,378 (284)
Reflective Inverse Diffusion [PDF]
Applied Sciences, 2016 Phase front modulation was previously used to refocus light after transmission through scattering media. This process has been adapted here to work in reflection. A liquid crystal spatial light modulator is used to conjugate the phase scattering properties of diffuse reflectors to produce a converging phase front just after reflection.
Kenneth Burgi +3 more
openaire +2 more sources
Oblique incidence reflectometry: optical-fiber implementation [PDF]
, 1996 A new, simple and quick approach, oblique-incidence reflectometry, was used to measure the absorption and reduced scattering coefficients of a semi-infinite turbid medium.
Jacques, Steven L. +3 more
core +1 more source
Towards Non-Contact Glucose Sensing in Aqueous Turbid Medium at ∼1.1 Meters Distance
IEEE Photonics Journal, 2020 This work demonstrates a non-contact diffuse reflectance approach with a working distance of ∼1.1 meters for the potential of glucose sensing.
Daqing Piao +3 more
doaj +1 more source
Analysing the suitability of radiometrically calibrated full-waveform lidar data for delineating Alpine rock glaciers [PDF]
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2013 With full-waveform (FWF) lidar systems becoming increasingly available from different commercial manufacturers, the possibility for extracting physical parameters of the scanned surfaces in an area-wide sense, as addendum to their geometric ...
A. Roncat +7 more
doaj +1 more source
, 2015 Undoing the image formation process and therefore decomposing appearance into its intrinsic properties is a challenging task due to the under-constraint nature of this inverse problem.
Fritz, Mario +4 more
core +3 more sources
Polarized Light Field Imaging for Single-Shot Reflectance Separation
Sensors, 2018 We present a novel computational photography technique for single-shot separation of diffuse/specular reflectance, as well as novel angular domain separation of layered reflectance.
Jaewon Kim, Abhijeet Ghosh
doaj +1 more source
, 2023 Score-based diffusion models learn to reverse a stochastic differential equation that maps data to noise. However, for complex tasks, numerical error can compound and result in highly unnatural samples. Previous work mitigates this drift with thresholding, which projects to the natural data domain (such as pixel space for images) after each diffusion ...
Lou, Aaron, Ermon, Stefano
openaire +2 more sources
Visible and near infrared spectroscopy in soil science [PDF]
, 2010 This chapter provides a review on the state of soil visible–near infrared (vis–NIR) spectroscopy. Our intention is for the review to serve as a source of up-to date information on the past and current role of vis–NIR spectroscopy in soil science.
Mouazen, Abdul Moune +3 more
core +1 more source
The Use of Separated Reflection Components in Estimating Geometrical Parameters of Curved Surface Elements [PDF]
, 1995 Iterative least-squares estimation, requires accurate reflectance models to retrieve geometrical parameters of curved surface elements from an image projection. We investigate the use of separating the diffuse (body) reflection from the specular (surface)
Glas, J.C., Heijden, F. van der
core +2 more sources
Nanoscale Research Letters, 2018 In this research, we studied enhanced diffuse reflectance that can be achieved by excitations of multiple-scattering in a hybrid micro-structured titanium dioxide coating.
Hai Lu +10 more
doaj +1 more source