Blar i Fakultet for informasjonsteknologi og elektroteknikk (IE) på tidsskrift "Proceedings of SPIE, the International Society for Optical Engineering"
Viser treff 1-20 av 37
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3D reconstruction of gastrointestinal regions using shape-from-focus
(Peer reviewed; Journal article, 2023)3D shape reconstruction from images is an active topic in computer vision. Shape-from-Focus (SFF) is an important approach which requires image stack in a focus controlled manner to infer the 3D shape. In this article, 3D ... -
A random forest-based method for selection of regions of interest in hyperspectral images of ex vivo human skin
(Journal article; Peer reviewed, 2019)Hyperspectral imaging is a useful tool for characterization of human tissue. However, the vast amount of data created makes it challenging and tedious to manually select spatial regions of interest for further processing. ... -
Application of smoothing splines for spectroscopic analysis in hyperspectral images
(Journal article; Peer reviewed, 2019)The spectral and spatial resolution of hyperspectral imaging is useful for investigation of tissue autofluorescence. The low-light, noisy conditions in fluorescence imaging usually necessitates noise removal for extraction ... -
Application of spectral statistics to surface defect detection
(Journal article; Peer reviewed, 2019)The development of a spectral difference-based statistical processing of hyperspectral images is provided in this article. Kullback-Leibler pseudo-divergence function, which was specifically developed for the metrological ... -
Characterizing the response of charge-couple device digital color cameras
(Journal article; Peer reviewed, 2012)The advance and rapid development of electronic imaging technology has lead the way to production of imaging sensors capable of acquiring good quality digital images with a high resolution. At the same time the cost and ... -
Classification of municipal solid waste using deep convolutional neural network model applied to multispectral images
(Peer reviewed; Journal article, 2021)Minimization of the environmental impact of the incineration process and to produce energy efficiently are the most important considerations in obtaining efficient operation of waste-to-energy (WtE) plants. WtE operation ... -
Clustering Document Fragments using Background Color and Texture Information
(Journal article; Peer reviewed, 2012)Forensic analysis of questioned documents sometimes can be extensively data intensive. A forensic expert might need to analyze a heap of document fragments and in such cases to ensure reliability he/she should focus ... -
Collecting fingerprints for recognition using mobile phone cameras
(Journal article; Peer reviewed, 2012)We present in this paper a sample quality control approach for the case using a mobile phone’s camera as a fingerprint sensor for fingerprint recognition. Our approach directly estimates the maximum ridge frequency ... -
Combined 3D model acquisition and autofocus tracking system for hyperspectral line-scanning devices
(Journal article; Peer reviewed, 2019)Obtaining a sharp and focused image is essential to fully utilize the advantages of hyperspectral imaging. For line scanning hyperspectral devices, focusing is a challenge in applications where the height and/or position ... -
A combined informative and representative active learning approach for plankton taxa labeling
(Peer reviewed; Journal article, 2021)With an ever-increasing amount of image data, the manual labeling process has become the bottleneck in many machine learning applications. Plankton taxa labeling is especially a challenge due to its complex nature, and the ... -
Compact multimodal multispectral sensor system for tactical reconnaissance
(Peer reviewed; Journal article, 2022) -
Computational color constancy using chromagenic filters in color filter arrays
(Journal article; Peer reviewed, 2012)We have proposed, in this paper, a new color constancy technique, an extension to the chromagenic color constancy. Chromagenic based illuminant estimation methods take two shots of a scene, one without and one with a ... -
Effects of empty bins on image upscaling in capsule endoscopy
(Journal article; Peer reviewed, 2017)This paper presents a preliminary study of the effect of empty bins on image upscaling in capsule endoscopy. The presented study was conducted based on results of existing contrast enhancement and interpolation methods. A ... -
Feasibility of supercontinuum sources for use in glucose sensing by absorption spectroscopy
(Journal article; Peer reviewed, 2019)Diabetes mellitus 1 requires tight control of the blood glucose levels to avoid harmful effects of either too high (hyperglycemia) or too low (hypoglycemia) blood sugar. Due to the availability of low-cost components, ... -
First step towards an interferometric and localized surface plasmon fiber optic sensor
(Journal article; Peer reviewed, 2017)We present a first demonstration of a novel multi-parameter fiber optic (FO) sensor concept based on gold nanoparticles (GNP) embedded in a stimuli-responsive hydrogel material. A hemispherical hydrogel immobilized on the ... -
High-Q whispering gallery mode germanium microresonators at 8 μm
(Journal article; Peer reviewed, 2022) -
Histogram-probabilistic multi-hypothesis tracking with a Poisson mixture measurement process
(Peer reviewed; Journal article, 2023) -
Hole Detection in Aquaculture Net Cages from Video Footage
(Peer reviewed; Journal article, 2021)Frequent inspection of salmon cage integrity is essential to early detect and prevent the possible escape of farmed salmon—minimizing the risk of any negative impact for the remaining wild stock of salmon. Current ... -
Hyperspectral characterization of an in vitro wound model
(Journal article; Peer reviewed, 2014)Wound healing is a complex process not fully understood. There is a need of better methods to evaluate the different stages of healing, and optical characterization is a promising tool in this respect. In this study ... -
Hyperspectral characterization of tissue in the SWIR spectral range: a road to new insight?
(Journal article; Peer reviewed, 2019)Hyperspectral imaging is a generic imaging modality allowing high spectral and spatial resolution over a wide wavelength range from the visible to mid-infrared. Short wavelength infrared (SWIR) hyperspectral imaging is ...