Results 51 to 60 of about 132,205 (161)
Spectral imaging and spectral LIDAR systems: moving toward compact nanophotonics‐based sensing
Nanophotonics, Volume 10, Issue 5, Page 1437-1467, March 2021., 2021 Abstract With the emerging trend of big data and internet‐of‐things, sensors with compact size, low cost and robust performance are highly desirable. Spectral imaging and spectral LIDAR systems enable measurement of spectral and 3D information of the ambient environment.
Nanxi Li +6 more
wiley +1 more source
Measurement of image sensor tilt based on amplitude and phase of image [PDF]
, 2023 In this study, we present a new method for measuring the tilt of an image sensor to the lens. The assembly accuracy of the lens and image sensor units has a significant influence on the image quality for users. Any misalignment causes non-uniform defocus
Kawamata, Takumi +2 more
core +1 more source
Daily Evolution of the Insect Biomass Spectrum in an Agricultural Landscape Accessed with Lidar [PDF]
, 2016 We present measurements of atmospheric insect fauna intercepted by a static lidar transect over arable and pastoral land over one day. We observe nearly a quarter million of events which are calibrated to optical cross section.
Brydegaard, Mikkel +4 more
core +1 more source
Advances in automatic identifcation of flying insects using optical sensors and machine learning [PDF]
, 2021 Worldwide, farmers use insecticides to prevent crop damage caused by insect pests, while they also rely on insect pollinators to enhance crop yield and other insect as natural enemies of pests.
Brydegaard, M +10 more
core +1 more source
A new transmissometer method that measures runway visibility across a short distance [PDF]
, 2023 The present technique developed a transmissometer idea for intensity measurements in the ecosystem across an 80 cm distance. The method relies on the transmission of an optical or infrared (diode laser 785 nm) signal obtained on spectrum analyses (ocean ...
Abud, Mariam Mohamed
core +2 more sources
Remote Sensing, 2023 In recent years, the applications of lidars for remote sensing of the environment have been expanding and deepening. Among them, continuous-wave (CW) range-resolved (RR) S-lidars (S comes from Scheimpflug) have proven to be a new and promising class of ...
Ravil Agishev, Zhenzhu Wang, Dong Liu
doaj +1 more source
Atmospheric CW S-Lidars with Si/InGaAs Arrays: Potentialities in Real Environment
Remote Sensing, 2023 The article proposes a methodology for analyzing the performance of S-lidars (S comes from Scheimpflug) as a new class of environmental remote sensors operating under conditions of wide variability of optical weather and sky background brightness.
Ravil Agishev, Zhenzhu Wang, Dong Liu
doaj +1 more source
Applications of KHZ-CW Lidar in Ecological Entomology
EPJ Web of Conferences, 2016 The benefits of kHz lidar in ecological entomology are explained. Results from kHz-measurements on insects, carried out with a CW-lidar system, employing the Scheimpflug principle to obtain range resolution, are presented.
Malmqvist Elin, Brydegaard Mikkel
doaj +1 more source
Chasing the bird: 3D acoustic tracking of aerial flight displays with a minimal planar microphone array [PDF]
, 2023 Tracking the flight patterns of birds and bats in three-dimensional space is central to key questions in evolutionary ecology but remains a difficult technical challenge. For example, complex aerial flight displays are common among birds breeding in open
Dutilleux, Guillaume Joseph Antonin +2 more
core +2 more sources
Geometrical Model of Laser Triangulation System Based on Synchronized Scanners
Mathematical Problems in Engineering, Volume 2019, Issue 1, 2019., 2019 In traditional synchronized scanning system, the trajectory of the 3D scanning point is modeled as a circle when the thickness of rotated mirror is assumed to be zero. In this paper, a novel method to model the geometric measurement of synchronized scanning triangulation in the unfolded light path is proposed.
Dawei Tu +3 more
wiley +1 more source