Relight Lab

Usability and Interface Redesign

This usecase showcases the process for redesigning the user experience for the desktop application.

Relight Lab Desktop Application

RelightLab is an open-source application to create relightable images also known as Reflectance Transformation Imaging (RTI).  I worked on this software in collaboration with Dr. Federico Ponchio from ISTI-CNR while my research associated period at University of Cagliari (UniCa). 

Challenges 🫥

The target audience for Relight Lab is pretty diverse, spanning from experienced users who professionally capture and process RTI as a service to museum curators with extremely limited knowledge of both RTI and computers in general. The workflow can be pretty complex and follow different paths and the choice of the most appropriate basis depends on the acquisition mode, the material appearance of the subject, the intended use.

Goal 🎯

Introduce a semi-intrusive flow of actions to the user to allow a blend of both reasonable degrees-of-freedom to switch between various tools-and-options, while also proposing a firm flow of actions from start to end. This will allow a wizard-like experience for users to help them stay on track with the process. This approach also saves a lot of time which would otherwise be lost in several attempts to switch back and forth between various steps without a particular order.


What we did (principles applied)

The design of the interface addresses these challenges following a set of well established principles:

Interface Ui 


My major contributions were focused on understanding the existing flow of the software, gathering current requirements and redesigning the interface to simplify the processes, to make usability enhancements, user-flow corrections and draw/design wireframe for further development references (see section of screenshots). I revised the user interface elements considering the UI recommendations and suggestions from the existing expert users of the software. 


This work is in collaboration with Dr. Federico Ponchio from ISTI-CNR while my research associated period at University of Cagliari. Part of the software contributions are from ViDiC Group of CRS4.
Reference: Grant 9.2022 / TDM – Tessuto Digitale Metropolitano CUP F23C17000010006