We are pleased to announce that our next progress meeting will be held at IO-CSIC in Madrid (ES). Since our last meeting in June 2021, we have progressed on the development of references for BRDF, BTDF and BSSRDF measurements. This meeting will be occasion to share our results and have scientific debates on those quantities and on their link with appearance of surfaces and visual attributes (colour, gloss and translucency).
Here is how it will be organized : – April 26th (9am-5pm) : Workshop on BTDF measurements – April 27th (9am-5pm) : Progress in BxDiff on BRDF, BTDF, BSSRDF and models – April 28th (9am-12am): Discussion on BxDiff impact + future plans
Save the date in your agenda. It will be good to have a face to face meeting. We will build the detailed agenda and do our best to have it ready by beginning of March.
During the annual meeting of the German Society of Color Science and Application (DfwG ) on October 6th 2021, Alejandro Ferrero was awarded DfwG Fellow for his outstanding contributions with respect to goniometric measurement techniques, published in various articles.
The award recognizes Alejandro Ferreros’s valuable contributions to the fields of BRDF, BTDF, BSSRDF, Sparkle and goniometric color measurement, which were generated in many cases in the EMPIR projects xDReflect , BiRD , and BxDiff.
Dr. Ferrero is the first person to receive this novel award, which is dedicated to scientists, lecturers and teachers, engineers and developers who have achieved substantial advancements in color science and related fields of work through their multinational professional work and their outstanding effort.
The first workshop of BxDiff will be held at University Jean Monet in St Etienne (France), on Friday 10 December 2021.
It will be a great opportunity to learn about BRDF measurement and speckle – an important issue we are facing now in BRDF measurement when we reduce the bandwidth or when we move to high angular resolution. The apparition of speckle masks the BRDF of the surface. Experts will show the state of the art on this topic.
The agenda : 9:00 – Welcome 9:30 – Gael Obein (LNE-CNAM) | Evolution of BRDF measurement : when the speckle effect arose 10:00 – Pierre Chavel (Institut Graduate School) | The speckle theory (1) : an introduction 10:45 – Pierre Chavel & Anthony Cazier (Institut d’Optique Graduate School and University Saint-Etienne) | Educational demo with optical bench 11:30 – Pierre Chavel | The speckle theory (2) : advanced modelling 12:30 lunch 14:30 – Loic Denis (University of Saint-Etienne) | Removing speckle while maintaining resolution : methods in radar imaging. 15:15 – Thomas Labardens (LNE-CNAM) | Speckle effect in high resolution BRDF measurements 16:00 – Discussion : is the BRDF of a surface the expectation of the signal measured? 17:00 – end
Venue information and registration (free but requested) are available on the webpage of the event: here
CANCELED Due to the pandemic, BxDiff management board has decided to cancel the meeting.
The webmeeting restricted to consortium scheduled on Oct 27th is maintained.
It will be held in Hørsholm (DK) at DFM, 27-28 October 2020 We expect to present full progress at this meeting and we really hope to feature a strong stakeholders participation. Agenda and sessions will be prepared to encourage exchange and share of knowledge. First draft agenda will be shared in September, but for sure, we will talk about measurement and modelling of BRDF, BTDF, BSSRDF, on small, medium and large surfaces.
Members of the group will join their strenghts to give a online tutorial focused on “measurement of advanced BRDF” in the frame of the CIE tutorials on colour and visual appearance. It will be watchable starting on July 17th. Detailed agenda is here.
Since most laboratories are closed during the pandemic and measurements and developments of equipments have been slow down, the consortium has asked to EURAMET for a prolongation of the project of 6 months. Euramet accepted it. The poject, that was supposed to finish on April 31th 2022 will run until 31th October 2022.