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Department of Computer Science and Technology

Read more at: The effect of viewing distance and display peak luminance - HDR AV1 video streaming quality dataset

The effect of viewing distance and display peak luminance - HDR AV1 video streaming quality dataset

Thursday, 13 June, 2024 - 14:00 to 15:00

While it is well recognized that the visibility of distortions is affected by the viewing distance and display peak luminance, very few datasets control those conditions, and also few video quality metrics can account for them. To address this gap, we collected a new video quality dataset, HDR-VDC, which captures the...


Read more at: CANCELLED

CANCELLED

Thursday, 6 June, 2024 - 14:00 to 15:00

CANCELLED


Read more at: Multiresolution Mesh Rendering Engine - Practicalities and Performance

Multiresolution Mesh Rendering Engine - Practicalities and Performance

Thursday, 25 April, 2024 - 14:00 to 15:00

[CESCG practice talk] A multiresolution mesh is a structure that allows multiple levels of resolution of a mesh to be sampled in different regions. They are used to accelerate the construction of view-dependent Levels of Detail (LODs) for real-time rendering, generally for complex objects that may span large depths (e.g...


Read more at: Perceptual Quality Assessment of NeRF and Neural View Synthesis Methods for Front-Facing Views

Perceptual Quality Assessment of NeRF and Neural View Synthesis Methods for Front-Facing Views

Thursday, 18 April, 2024 - 14:00 to 15:00

Neural view synthesis (NVS) is one of the most successful techniques for synthesizing free viewpoint videos, capable of achieving high fidelity from only a sparse set of captured images. This success has led to many variants of the techniques, each evaluated on a set of test views typically using image quality metrics such...


Read more at: Towards a Unified Model of Contrast Sensitivity

Towards a Unified Model of Contrast Sensitivity

Tuesday, 19 March, 2024 - 15:00 to 16:00

CSFs represent the human visual system’s ability to detect contrast variations and have found important applications in engineering, where they can be used to optimise designs to cater to human perceptual limits. A comprehensive CSF model requires consideration of stimulus parameters, including spatial and temporal...


Read more at: Perceptual studies with holographic displays

Perceptual studies with holographic displays

Thursday, 14 March, 2024 - 14:00 to 15:00

The ultimate aim of displays for virtual reality and augmented reality applications is achieving success in the Visual Turing Test using the device. Holographic display is one of the top contenders in computational displays due to its ability to reconstruct complex light information, yet there are challenging features to...


Read more at: Perceptual studies with holographic displays

Perceptual studies with holographic displays

Thursday, 14 March, 2024 - 14:00 to 15:00

TBA


Read more at: Enhancing Video Generation with Explicit 3D Guidance for Accurate Motion Simulation

Enhancing Video Generation with Explicit 3D Guidance for Accurate Motion Simulation

Thursday, 29 February, 2024 - 14:00 to 15:00

Video generation is currently a highly popular task. However, common video generation models rely solely on large-scale data training to implicitly simulate motion, which can sometimes result in inaccuracies. To address this problem, we propose utilizing explicit 3D guidance to guide the video generation process. Given a...


Read more at: Spatiotemporal contrast sensitivity functions; OLED calibration

Spatiotemporal contrast sensitivity functions; OLED calibration

Thursday, 18 January, 2024 - 16:00 to 17:00

There will be two short talks that Maliha will present at the EI2024 conference: (1) Spatiotemporal contrast sensitivity functions: predictions for the critical flicker frequency https://www.cl.cam.ac.uk/~rkm38/pdfs/bozorgian2023_csf_cff.pdf (2) Color calibration methods for OLED displays https://www.cl.cam.ac.uk/~rkm38/...


Read more at: Image quality assessment across viewing distances: A comparison study of CSF-based and rescaling-based metrics

Image quality assessment across viewing distances: A comparison study of CSF-based and rescaling-based metrics

Thursday, 11 January, 2024 - 14:00 to 15:00

Assessing the quality of images often requires accounting for the viewing conditions - viewing distance, display resolution and size. For example, the visibility of compression distortions may differ substantially when a video is viewed on a smartphone from a short distance and when viewed on a TV from a large distance...