Archive


Deadline for CVCS is approaching

Deadline for CVCS is approaching

The deadline for submitting papers to the 2015 Colour and Visual Computing Symposium is March 15th. Prospective authors are invited to submit extended abstracts with initial results (PDF file of 2 to 6 pages). Topics of particular interest to CVCS 2015 include, but are not limited to: Image and Video Quality Assessment and Enhancement, Computational Colour and Vision Science, Multi-channel Colour Printing, Media Security, Forensics, and Biometrics. You will find more information on www.colourlab.no/cvcs

CVCS keynote by Reiner Eschbach

CVCS keynote by Reiner Eschbach

Dr. Reiner Eschbach will give a keynote at CVCS2015 25-26. of August 2015. His talk, "What is the colour of your eyes?", examines our assumptions about what colour means when it comes to "quality". How do we define Quality in the scenario we are working in ? Can we have a single entity that works from medical applications to marketing applications to end-user applications ? More information on CVCS can be found on www.colourlab.no/cvcs

Research stay at the University of Burgundy

Research stay at the University of Burgundy

Associate professor Marius Pedersen and PhD student student had a research stay in weeks 8-10 at the University of Burgundy in Dijon. They have been working together with associate professor Jean Baptiste Thomas. During their stay they have conducted joint research and given guest lectures. Their research stay is funded through the Aurora program by the Research Council of Norway.

Newton’s prism experiment

Newton’s prism experiment

The Norwegian Colour and Visual Computing Laboratory at Gjøvik was the site of a new Newton prism experiment. In 1666, Isaac Newton observed that a dispersive prism is decomposing white light into the colours of the spectrum. He demonstrated his theory of colours by passing a beam of sunlight through a type of prism. The prism splits the beam into separate colours. Sophie Ekedahl (to the left) is a student at “Oslo Steinerskole” and is currently working on a project related to colours. The purpose of her study is to see how rainbow occurs, the physical and geometrical optics occurring in each raindrop, and to study what kind of colours occur in rainbow and how they are formed.


QuickEval: a web-application for psychometric scaling

QuickEval: a web-application for psychometric scaling

QuickEval is a web application for carrying out psychometric scaling experiments. It off ers the possibility of running controlled experiments in a laboratory, or large scale experiment over the web for people all over the world. It supports the three most common scaling methods; paired comparison, rank order, and category judgement. The application is freely available at www.colourlab.no/quickeval

Colourlab at Electronic Imaging 2015

Colourlab at Electronic Imaging 2015

The Colourlab was well represented at Electronic Imaging 2015 (EI2015). An impressive 14 papers presented at EI2015 had authors from the Colourlab. The papers ranged from a new web application to create and perform psychometric experiments to color rendering of maps for users with color vision deficiencies. In addition Colourlab members was session chairs, committee members and presented at the demonstration session.

Colourlab Workshop #1/2015: Skin imaging

Colourlab Workshop #1/2015: Skin imaging

We are pleased to announce the first Colourlab workshop in 2015 on "Skin Imaging". Understanding the properties of skin and how to properly perform image based measurements of this important tissue has great importance in many fields. The focus of this work is on dermatology. The workshop have many distinguised speakers, as Emre Celebi (Louisiana State University), Kajsa Møllersen (Univ. Tromsø/GUC), Kaida Xiao (Univ. Liverpool) and Ronnier Luo (Leeds University/Zhejiang University). The workshop is held at Gjøvik University College in room G303 on February 19, 2015.

Article published in Optics Express

Article published in Optics Express

"A sensor-data-based denoising framework for hyperspectral images" has been published in Optics Express. The paper describes a new denoising framework for hyperspectral images that uses sensor data to convert an acquisition to a representation facilitating the noise-estimation. The paper is written by Ferdinand Deger, Alamin Mansouri, Marius Pedersen, Jon Y. Hardeberg, and Yvon Voisin.

Hyperspectral imaging at National Library of Norway

Hyperspectral imaging at National Library of Norway

Researchers from The Norwegian Colour and Visual Computing Laboratory has performed hyperspectral imaging of ancient manuscripts at National Library of Norway (Nasjonalbiblioteket), on 27th November 2014. Prof. Jon Yngve Hardeberg, Dr. Sony George and visiting researcher Irina Ciortan were involved in the acquisition campaign. This research is funded by the Regional Research Funds in Norway. Ongoing analysis expect to find more details about the manuscripts.

COSCH training school

COSCH training school

Dr. Sony George from the Colourlab participated in COSCH's traning school on "Hyperspectral imaging – Techniques applied to the investigation of 2D polychrome surfaces" in Florence, Italy, in December 2014. The Colourlab is actively participating in the Colour & Space in Cultural Heritage (COSCH), which is a European cooperation in science and technology (COST). More information found about COSCH on http://www.cosch.info.

News article on www.forskning.no

News article on www.forskning.no

A news article has been posted on www.forskning.no about the Colourlab's work on the Scream. It describes the hyperspectral acquisition and analysis of the Scream painting. The article also includes a video showing the acquisition and some of the analysis of the painting.

Colourlab at EUVIP2014

Colourlab at EUVIP2014

The Norwegian Colour and Visual Computing Laboratory was well represented at the 5th European Workshop on Visual Information Processing. 5 scientific papers had authors from the Colourlab, one student poster (Picture: Bilel Sdiri), and two tutorials were given by Colourlab members. In addition Prof. Phil Green and Associate Professor Faouzi Alaya Cheikh were in the organizing committee.

Raju Shrestha defended PhD thesis

Raju Shrestha defended PhD thesis

The Colourlab congratulates Raju Shrestha for successfully defending his PhD dissertation on 9th December, 2014, at the Department of Informatics, University of Oslo. He is employed by the Norwegian Colour and Visual Computing Laboratory, Gjøvik University College (GUC).

The title of the doctoral thesis is 'Multispectral imaging: Fast acquisition, capability extension, and quality evaluation'. The work with the thesis has resulted in 16 peer-reviewed scientific publications, including 3 journal papers.


Marius Pedersen visits University of Caen

Marius Pedersen visits University of Caen

Associate professor Marius Pedersen visited the university of Caen, France, in december 2014 to discuss the a project on the topic of biometric image quality. The project will include a PhD student in collaboration with Caen, it is also a part of the HyPerCept project. Associate Professor Christophe Charrier from the GREYC lab at Caen presented their research on biometrics and e-payments.

Faouzi Alaya Cheikh visits Hainan University

Faouzi Alaya Cheikh visits Hainan University

Associate Professor Faouzi Alaya Cheikh visited the College of Information Science & Technology at Hainan University, China, in November 2014. He gave three invited talks on image coding, video coding and content-based image retrieval. He also presented the Colourlab research areas and student activities. The visit was in the context of an industrial project collaboration for intelligent video surveillance.

Raju Shrestha to defend his PhD thesis

Raju Shrestha to defend his PhD thesis

PhD student Raju Shrestha will defend his PhD thesis "Multispectral imaging: Fast acquisition, capability extension, and quality evaluation" on the 9th of December at the University of Oslo. The trial lecture takes place at 1115 and the defense at 1315 in Kristen Nygaards sal (5370), Ole-Johan Dahls hus, Gaustadalléen 23B. Raju has been supervised by Prof. Jon Yngve Hardeberg and Prof. Fritz Albregtsen (University of Oslo). The committee consists of Professor Markku Hauta-Kasari (University of Eastern Finland), Chief Scientist Torbjørn Skauli (Norwegian Defence Research Establishment) and Professor Anne H Schistad Solberg (University of Oslo).

Cactus award won at Color and Imaging Conference

Cactus award won at Color and Imaging Conference

The paper "Colour separation of n-colour printing process using inverse printer models" written by Kiran Deshpande (London College of Communication), Phil Green (Colourlab) and Micheal R. Pointer (University of Leeds) won the Cactus award for best poster at the 22nd Color and Imaging Conference. The paper evaluates different methods of implementing the inverse printer model to obtain the colour separation for n-colour printing processes. We congratlate Phil and his co-authors on the award.

Casper Find Andersen visits the Colourlab

Casper Find Andersen visits the Colourlab

Dr. Casper Find Andersen visited the Colourlab on the 17th and 18th of November 2014. He gave a guest lecture "Estimating Individual Cone Fundamentals from Colour Matching Functions". In his lecture he presented a novel method to carry out estimation of cone fundamental based on a linear optimization technique, employing an assumption of a priori knowledge of the retinal absorptance functions.

Colourlab at CIC22

Colourlab at CIC22

The Norwegian Colour and Visual Computing Laboratory was well represented at the Color and Imaging Conference (CIC22) in Boston, MA in November 2014. Eight papers were presented or had authors from the Colourlab, two of them as oral presentation and the rest as poster presentations. In addition to the normal papers Ludovic Coppel and Radovan Slavuj were responsible for the "Next Generation Color Printing Workshop".

Colourlab Workshop #6/2014: Cultural heritage image analysis and interpretation

Colourlab Workshop #6/2014: Cultural heritage image analysis and interpretation

The Norwegian Colour and Visual Computing Laboratory is pleased to announce its sixth workshop of the year. This workshop is quite unique in many ways. It goes over two days and in two locations, at Gjøvik University College on Thursday December 4th and at the University of Oslo on Monday December 8th. We address the field from many angles and approaches; the historic approach to interpret ancient texts, conservation and analysis of art objects, the digitization needs of the archive and library sector, research funding opportunities in cultural heritage, etc.
News archive