Results 31 to 40 of about 267,997 (294)
A narrow-band speckle-free light source via random Raman lasing
, 2015 Currently, no light source exists which is both narrow-band and speckle-free with sufficient brightness for full-field imaging applications. Light emitting diodes (LEDs) are excellent spatially incoherent sources, but are tens of nanometers broad. Lasers
Bixler, Joel N. +10 more
core +1 more source
Intravascular endoscopy improvement through narrow-band imaging [PDF]
International Journal of Computer Assisted Radiology and Surgery, 2017 Recent advances in endoscopy have led to new technologies with significant optical imaging improvements. Since its development a few years ago, narrow-band imaging (NBI) has already been proved useful in detecting malignant lesions and carcinoma in clinical settings of urology, gastroenterology and ENT.
Axel Boese +3 more
openaire +2 more sources
Learning curve for endoscopic evaluation of vocal folds lesions with narrow band imaging
Brazilian Journal of Otorhinolaryngology, 2019 Introduction: The endoscopic methods are progressing and becoming more common in routine clinical diagnosis in the field of otorhinolaryngology.
Michał Żurek +3 more
doaj +1 more source
Searching for Wolf-Rayet Stars in M101
, 2011 Wolf-Rayet (WR) stars are the evolved descendants of massive O-type stars and are considered to be progenitor candidates for Type Ib/c core-collapse supernovae (SNe).
Bibby, J. L. +5 more
core +1 more source
Brazilian Journal of Otorhinolaryngology, 2022 Introduction: Traditional meta-analyses on the diagnostic accuracy of oral lesions have been conducted, but they were inherently limited to direct pairwise comparisons between a single method and a single alternative, while multiple diagnostic options ...
Do Hyun Kim, Sun Won Kim, Se Hwan Hwang
doaj +1 more source
Companions of Qsos at Redshift 1.1 [PDF]
, 1994 We discuss broad- and narrow-band imaging of 7 arcmin fields of 14 QSOs with redshift ~1.1. The narrow-band filters were chosen to detect redshifted [O II] 3727A, and the broad bands are R and I, which correspond to rest wavelengths {}~3300A and ~3800A ...
Crampton, D. +2 more
core +2 more sources
Micro 4D Imaging Sensor Using Snapshot Narrowband Imaging Method
Micromachines, 2023 The spectral and depth (SAD) imaging method plays an important role in the field of computer vision. However, accurate depth estimation and spectral image capture from a single image without increasing the volume of the imaging sensor is still an ...
Wei Jiang +4 more
doaj +1 more source
Narrow band CCD imaging of four PNe [PDF]
Symposium - International Astronomical Union, 1997 We present first results of a project to construct and study spatio-kinematical models of selected Planetary Nebulae (PNe). Deep monochromatic CCD images of A8, A4, M2-55, and J-320 were made with the Calar Alto 2.2m telescope and the two interference filters 5005/90 and 6574/104 for the [O III] and Hα+[N II] emission lines.
A. Ali, J. Pfleiderer, W. Saurer
openaire +1 more source
Narrow-Band Imaging: Clinical Application in Gastrointestinal Endoscopy
GE: Portuguese Journal of Gastroenterology, 2018 Narrow-band imaging is an advanced imaging system that applies optic digital methods to enhance endoscopic images and improves visualization of the mucosal surface architecture and microvascular pattern.
Sandra Barbeiro +4 more
doaj +1 more source
Voice Outcome in Patients Treated With Endoscopic Laryngopharyngeal Surgery for Superficial Hypopharyngeal Cancer [PDF]
Clinical and Experimental Otorhinolaryngology, 2016 Objectives Endoscopic laryngopharyngeal surgery (ELPS) is a minimally invasive transoral surgery that was developed to treat superficial larygo-pharyngeal cancer, in which a mucosal lesion is resected transorally while preserving deeper structures by ...
Ichiro Tateya +7 more
doaj +1 more source