The ultimate aim of virtual reality is to present the user with an illusion of reality within a virtual environment. Visual artefacts that appear in a virtual reality system’s computer generated graphics can easily destroy this artificial sense of reality. Therefore in order to maintain an illusion of reality, it is essential to eliminate or hide such visual artefacts from the user. This paper ...

BACKGROUND Artefacts in images related to patient movement decrease image quality, potentially necessitating re-scanning, which leads to an extra radiation dose for the patient. Thus, avoiding patient motion reduces patient exposure to radiation. The aim of this study was to analyse image motion artefacts (MAs) and how they are affected by patient anxiety during cone beam computed tomography (C...

Technology increasingly plays a role in the way that we prepare for, celebrate, and reflect upon major life events. Modern digital artefacts, such as Facebook messages and digital photos, now stand alongside traditional artefacts, such as guest books and heirloom jewellery, as cherished mementos of these occasions. Considering how these physical artefacts are crafted provides a useful lens for ...

Visualization of cell migration during chemotaxis using spectral domain optical coherence tomography (OCT) requires non-standard processing techniques. Stripe artefacts and camera noise floor present in OCT data prevent detailed computer-assisted reconstruction and quantification of cell locomotion. Furthermore, imaging artefacts lead to unreliable results in automated texture based cell analys...

This paper presents a mathematical characterization and analysis of beam-hardening artefacts in X-ray computed tomography (CT). In the field of dental and medical radiography, metal artefact reduction in CT is becoming increasingly important as artificial prostheses and metallic implants become more widespread in ageing populations. Metal artefacts are mainly caused by the beam-hardening of pol...

Anthropomorphized, or human-like artefacts, have been used in teaching and training of medical skills for a long time. The most famous artefact used today is probably the Resusci ® Anne CPR training manikin, which is used for training of resuscitation skills. However, what has changed over the lifespan of these artefacts is the level of human-like features in them. All around the globe, highly ...

In recent years, the clinical importance of cardiac magnetic resonance (CMR) imaging has increased dramatically. As a consequence, more clinicians need to become familiar with this imaging modality, including its technical challenges. MR images are obtained through a physical process of proton excitation and the reception of resonating signals. Besides these physical principles, the motion of t...

Overview and Motivation Due to the rising demand for individualised software products and software-intensive systems (e.g., mobile phone or automotive software), organizations are faced with the challenge to provide a diversity of software systems at low costs, in short time, and with high quality. Software product line engineering is the approach for tackling this challenge and has proven its ...