A5032314284- Digital Holography and Microscopy
- Advanced Optical Imaging Technologies
- Advanced Vision and Imaging
- Teaching and Learning Programming
- Computer Graphics and Visualization Techniques
- Human Mobility and Location-Based Analysis
- Geographic Information Systems Studies
- Second Language Acquisition and Learning
- Virtual Reality Applications and Impacts
- Gene expression and cancer classification
- Gaze Tracking and Assistive Technology
- Mobile Learning in Education
- Online Learning and Analytics
- Data Visualization and Analytics
- Cell Image Analysis Techniques
- AI in cancer detection
- Higher Education Practises and Engagement
- Research in Social Sciences
- Image Processing Techniques and Applications
- Educational Games and Gamification
National University of Ireland, Maynooth
2005-2023
University of Oulu
2007-2010
Evaluating expression of the human epidermal growth factor receptor 2 (HER2) by visual examination immunohistochemistry (IHC) on invasive breast cancer (BCa) is a key part diagnostic assessment BCa due to its recognized importance as predictive and prognostic marker in clinical practice. However, scoring HER2 subjective, consequently prone interobserver variability. Given therapeutic implications scoring, more objective method required. In this paper, we report recent automated contest, held...
In digital holography we often capture optically a 3D scene and reconstruct the perspectives numerically. The reconstructions are routinely in form of 2D image slice, an extended focus image, or depth map from single perspective. These fundamentally (or at most 2.5D) representations for some scenes not certain to give human viewer clear perception features encoded hologram (occlusions overcome, example). As intermediate measure towards full-field optoelectronic display device, propose...
This paper describes our process of creating computational thinking (CT) resources for primary school teachers in Ireland. The National Council Curriculum and Assessment has proposed a revised mathematics curriculum with an emphasis on CT skills problem solving, some would like to introduce it already informal basis. However, is not yet part teacher training. Our motivating question been: how can without computer science background deliver at level Ireland? involves third-level academics...
Digital holography is a well-known technique for both sensing and displaying real-world three-dimensional objects. Compression of digital holograms has been studied extensively, the errors introduced by lossy compression are routinely evaluated in reconstruction domain. Mean-square error predominates evaluation quality. However, it not known how well this metric corresponds to what viewer would regard as perceived error, nor consistently functions across different viewers. In study, we...
We have studied the use of conventional stereoscopic displays for viewing digital holograms real-world three-dimensional (3D) objects captured using phase-shift interferometry. Although propagation can be performed efficiently, only one depth-plane scene is in focus each reconstruction. Reconstruction at every depth to create an extended-focus image a time-consuming process. investigate human visual system's ability perceive 3D presence blurring when different reconstructions are presented...
Holography is a well-known technique for sensing and displaying real-world three-dimensional (3D) objects. Digital holograms have been successfully displayed on conventional stereoscopic displays allowing research into perception of quality 3D holographic data. We do know that enhanced if reconstructions digital are with rather than regular two-dimensional (2D) screen. However, it not known how different attributes (e.g. noise, blur, perceived depth) the viewer's subjective related. In this...
We study observers looking at a 3D scene captured in traditional glass plate hologram using eye-tracking.We compare this with stereoscopic and 2D images.Our results can guide development of future digital holographic displays.
In this research, we addressed the problem of visualizing route histories on a mobile device. We developed solution, which combines visualization three history parameters: speed, direction, and location. The was tested in laboratory evaluation with 12 subjects. results showed that by using subjects were able to estimate actual driving speeds accurately. also evaluated supported their knowledge location, direction quite well. suggest presented is an improvement over currently used visualizations.
We have developed a Transition Year (TY) computational thinking module (for 15-16 year olds) based on Bebras tasks that was delivered online by teachers at 240 schools in Ireland during 2021-2022. To serve primary and secondary pre-service teachers, we started developing 24-hour this TY module. are co-creating the with education experts CS academics working collaboratively. The consist of from both teaching departments our institution.
In digital holography a 3D scene is captured optically and often the perspectives are reconstructed numerically. this study we digitally process holograms to allow them be displayed on autostereoscopic displays. This conducted by subjective visual perception experiments comparing single images from left right perspective resulting stereo image.
This paper describes an unplugged computational thinking (CT) resource for primary and secondary schools developed from Bebras tasks. In Ireland, CT is not part of the school curriculum or mandatory in schools. However, National Council Curriculum Assessment process revising to include aspects CT. Our aim creating this Obstacle Course introduce teachers (and pupils) without formal computer science training subject done a manner that informs motivates, gives them confidence deliver materials...
Holography is a well-known technique for sensing and displaying real-world three-dimensional (3D) objects. Reconstructions from digital holograms are typically displayed with regular two-dimensional (2D) screens therefore lot of the 3D specific information not passed on to viewer during display process. Mobile devices have interesting possibilities data interactively. In this study, we show how nine viewers evaluated hologram reconstructions tilt based system incorporated into mobile device.
We report on a visual perception study to measure differences between numerical error in reconstructions from digital holograms of real-world objects that have undergone lossy compression, and the loss quality perceived by human observers.
In this poster, we highlight computational thinking resources for schools from the PACT team at Maynooth University, Ireland. The are derived tasks Bebras international initiative. different modalities work together throughout school year to provide initial exposure thinking, and include an obstacle course, seasonal tasks, a workbook.