Results 91 to 100 of about 926,619 (193)

Colour analysis of degraded parchment [PDF]

, 2013
Multispectral imaging was employed to collect data on the degradation of an 18th century parchment by a series of physical and chemical treatments. Each sample was photographed before and after treatment by a monochrome digital camera with 21 narrow-band
Giacometti, A, Gibson, A, Macdonald, LW, Terras, M, Weyrich, T   +4 more
core  

FlashCam: a fully-digital camera for the medium-sized telescopes of the Cherenkov Telescope Array

, 2015
The FlashCam group is currently preparing photomultiplier-tube based cameras proposed for the medium-sized telescopes (MST) of the Cherenkov Telescope Array (CTA).
Bauer, C., Bernhard, S., Capasso, M., Diebold, S., Eisenkolb, F., Florin, D., Funk, S., Föhr, C., Gadola, A., Garrecht, F., Hermann, G., Jung, I., Kalekin, O., Kalkuhl, C., Kasperek, J., Kihm, T., Lahmann, R., Manalaysay, A., Marszalek, A., Pfeifer, M., Pühlhofer, G., Rajda, P. J., Reimer, O., Santangelo, A., Schanz, T., Schwab, T., Steiner, S., Straumann, U., Tenzer, C., Vollhardt, A., Weitzel, Q., Werner, F., Wolf, D., Zietara, K.   +33 more
core  

Deep-sea image processing [PDF]

, 2004
High-resolution seafloor mapping often requires optical methods of sensing, to confirm interpretations made from sonar data. Optical digital imagery of seafloor sites can now provide very high resolution and also provides additional cues, such as color ...
Fornari, D J, Mayer, Larry A., Rzhanov, Yuri   +2 more
core   +1 more source

Determinación del Área Foliar en Fotografías Tomadas con una Cámara Web, un Teléfono Celular o una Cámara Semiprofesional Leaf Area Measurement in Photographs Taken with a Webcam, a Cell Phone or a Semi Professional Camera

Revista Facultad Nacional de Agronomía Medellín, 2012
Resumen. Las determinaciones de área foliar son muy usadas en investigación agrícola. Para su cuantificación existen equipos automáticos, pero costosos y de escasa disponibilidad.
Natalia Rincón Guerrero, Manuel Andrés Olarte Quintero, Juan Carlos Pérez Naranjo   +2 more
doaj  

Development of a Time-Integration Method for Analyzing the Photoresponse of Image Sensors: Theoretical and Experimental Verification with Digital Cameras

Measurement Science Review
This study introduces a novel method for analyzing image sensors, supported by both theoretical and experimental verification. We first theoretically derived that when sinusoidal light with constant amplitude is directed onto an image sensor with fixed ...
Shimoji Nobuaki, Suzuki Yuto
doaj   +1 more source

The Photometric Testing of High-Resolution Digital Cameras from Smartphones—A Pilot Study

Sensors
Luminance is the fundamental photometric quantity representing the technical meaning of brightness. It is usually measured from a distance using a matrix sensor, which is the basis of the professional instrument.
Sławomir Zalewski, Krzysztof Skarżyński   +1 more
doaj   +1 more source

Measurement of Water Leaving Reflectance Using a Digital Camera Based on Multiple Reflectance Reference Cards. [PDF]

Sensors (Basel), 2020
Gao M, Li J, Zhang F, Wang S, Xie Y, Yin Z, Zhang B.   +6 more
europepmc   +1 more source

Changes in reflectance of rice seedlings during planthopper feeding as detected by digital camera: Potential applications for high-throughput phenotyping. [PDF]

PLoS One, 2020
Horgan FG, Jauregui A, Peñalver Cruz A, Crisol Martínez E, Bernal CC.   +4 more
europepmc   +1 more source

Towards health monitoring using remote heart rate measurement using digital camera: A feasibility study. [PDF]

Measurement (Lond), 2020
Hassan MA, Malik AS, Fofi D, Karasfi B, Meriaudeau F.   +4 more
europepmc   +1 more source

Determination of acid dissociation constants of Alizarin Red S, Methyl Orange, Bromothymol Blue and Bromophenol Blue using a digital camera. [PDF]

RSC Adv, 2020
Shalaby AA, Mohamed AA.
europepmc   +1 more source