Category Archives: News

CG Colloquium Thursday, February 20th

You are cordially invited to attend our CG Colloquium on Thursday, February 20th, 2020, 15:45-17:45h, room Kubus (building 26).

Jim Whitehead

Title: Procedural Generation Using Linear Constraints

Abstract: Procedural content generation problems sometimes involve systems of linear equality and inequality constraints among the elements being generated. Cassowary is a constraint solver designed for solving these types of constraints at interactive speeds. It is widely used in user interface toolkits, and multiple implementations are available. To date, Cassowary has not been used in procedural content generation. This talk presents Cassowary and gives examples of its use in procedural content generation.

CG Colloquium Thursday, February 13th

You are cordially invited to attend our CG Colloquium on Thursday, February 13th, 2020, 15:45-17:45h, room Wit licht (building 26).

The program features the following two speakers:

Priyanka Bhaskar

Title: Narcolepsy – Exploratory Analysis

Abstract: Narcolepsy is a chronic neurological condition that results from the dysregulation of the sleep-wake cycle occurring in an early stage, specifically in adolescence. Although Narcolepsy occurs in an early stage there is a delay in diagnosis due to multiple reasons such as lack of symptom recognition, misdiagnoses as some of the symptoms overlap with other disorders like epilepsy, depression, insomnia to name a few. As a result of delayed diagnosis, the overall quality of life of a patient is affected.
The symptom pentad of narcolepsy includes excessive daytime sleepiness, cataplexy, hypnagogic hallucinations, sleep paralysis and disturbed nocturnal sleep. However, the symptoms related to narcolepsy are not limited to the pentad and cover a broad range covering symptoms not directly related to sleep, like, increase in weight, binge eating, anxiety, agitation. In order to reduce the delay in diagnosis, apart from having and creating an awareness about narcolepsy and it’s symptoms, it is important to look beyond the symptom pentad and understand the occurrences and interrelationships between these symptoms. Hence, this project aims at performing an exploratory analysis by looking into 20 symptoms, to understand symptom occurrences, the associations between symptoms to
name a few.

Joost Wooning

Title: Using Augmented Reality to assist in Medical Interventions

Abstract: Augmented Reality (AR) is an upcoming technique which can be used to display images overlaid on the normal vision of the user, several systems are on the market, in this project a Microsoft HoloLens will be used. A possible use of this technology is during medical interventions, allowing a surgeon to see displayed images inside a patient during surgery. If used as guidance a high accuracy of displayed projections is required to prevent damaging tissue. Previous work uses external tracking systems to enable accurate projections, using these systems is however not always possible, therefore this project will only use the hardware on a HoloLens. Previous research has shown that the spatial tracking of the HoloLens is not accurate, markers will, therefore, be used to track positions. The goal is to display a projection based on a CT image of a patient in the corresponding position inside the patient and report how accurate this projection is.

CG Colloquium Thursday January 16th

You are cordially invited to attend our CG Colloquium on Thursday, January 16th, 2020, 15:45-17:45h, EWI-Lecture Hall D@ta.

The program features the following two speakers:

Nouri Khalass

Title: Visualizing Axial-Symmetrical Nebula

Abstract: Nebulas are both interesting astrophysical phenomena as well as one of natures most beautiful sights to behold. Their astrophysical relevance comes from the fact that they can be the birthplace of new stars but also the remains of older stars. On top of that, nebulas have appeared countless times when depicting “space” in the entertainment industry. There exists a class of nebula that have a pronounced symmetry in their appearance. The goal is to create a tool that allows the user to model these kinds of nebula. By exploiting this symmetry the user does not have to model the complete nebula, but only a section of the nebula and from this a complete nebula can be synthesized.

Marie Kegeleers

Title: Interactive Story Authoring in Augmented Reality

Abstract: Augmented reality (AR) is a relatively new kind of technology that can be used as a tool to facilitate tasks that benefit from real time interaction and 3D visualisation in a real-world environment. An example of these tasks is story authoring. A story authoring application in AR allows the author to easily visualise story mechanics like plot points, as well as the authored scene with characters and props. Because AR integrates virtual elements with the real world, it offers more direct interaction with story elements which can provide a more intuitive experience compared to a PC application. This project introduces a new interface for AR in a tabletop environment using a head mounted device, that aims to facilitate the story authoring process through its different approach to interaction and visualisation. The interface provides a new way of interaction with virtual elements by combining both physical markers and hand gesture input. The tabletop environment is used to visualise the story authoring elements dynamically, in 3D, to avoid cluttering and enable adaptability. The goal of this combination of interaction and visualisation concepts is to provide a more intuitive story authoring experience.

We have a new PhD joining

We have a new PhD joining our group, Alexander Vieth, welcome!

Alexander is a first year PhD student and currently works on visual analytics methods for multimodal, high-dimensional data. Previously, he did his BSc and MSc in Electrical Engineering, Information Technology, and Computer Engineering at the RWTH Aachen University in Germany.

Recent PhD defense

Today Leonardo Scandolo successfully defended his thesis, Image-based Representations for Efficient Rendering and Editing, in Senaatszaal, the Aula. Congratulations to Dr. Scandolo!

Dr. Scandolo will continue his research as a post-doc in Delft.

Computer graphics colloquium Image Synthesis of the Future

You are kindly invited to join the colloquium “Image Synthesis of the Future” on the 18th from 14:00 – 16:00 in the Social Data Lab of the VMB building. During this event, we will experience several renowned speakers:

Ulf Assarsson of Chalmers University
Prof. Assarsson is an expert in real-time shadow computation and large-scale scene representations, including applications to 3D printing.

Jacco Bikker of Utrecht University
Dr. Bikker is the author of the famous Brigade renderer, a path tracer for real-time applications.

Jacob Munkberg of NVIDIA research
Dr. Munkberg worked for Intel and NVIDIA and is responsible for many influential papers on image reconstruction for real-time rendering.

Mark Stamminger
Prof. Stamminger, chair for computer graphics in Erlangen, is known for his many contributions to real-time rendering, including the seminal work on perspective shadow maps, as well as 3D reconstruction and VR/stereo rendering applications.

Each of the speakers will share their insights on the domain and share their views on the field.