Publicaties

In the last four decades eye-tracking research has established itself as a powerful paradigm for studying human visual behaviour. More recently, efforts have been made to extend the application field for eye-tracking research beyond the boundaries of lab-based experiments. For example, research on marketing or on human-human interaction definitely benefit from real-life experiments. Since 1999 the concept of mobile eye-tracking is introduced. A ...

The objective of this study was to implement a computer vision system for automatic monitoring of animal based measures relevant for lameness detection in a commercial dairy farm. The implementation procedure comprised the following steps: (1) start and stop of the video recordings, (2) identification of the cow in the video, and (3) video processing including the filtering of good quality images and the calculation of the back posture ...

The aim of this study was to test and evaluate a 2D computer vision technique that estimates the mass of Jade perch Scortum barcoo swimming freely in a tank of a recirculation aquaculture system. The first step of this study, which is described in this paper, was to build up a relationship between the fish shape and its mass in order to be able to estimate the mass of the fish by vision techniques. A set of 120 images of fish outside the water ...

The objective of this study is to develop an automatic detection system to quantify the severityof lameness for dairy cows, based on both analysis of video recordings of the cow‘s gait andwith her associated behaviour. This paper describes the need for this type of research, and willdiscuss the experimental setup. During three recording sessions, 92.5% of the animals in theherd were recorded while walking through the video-corridor with at least ...

The aim of this study was to test and evaluate a computer vision technique that estimates the weight of Omega Perch swimming freely in a tank of a recirculation aquaculture system. A set of 105 images of fish were captured out of the water in order to build up a relationship between the fish shape and its weight. Regression analysis revealed that the coefficient of determination (R2) between area and weight is 0.98. Based on this model the mean ...

Considering the high demand for the identification of unknown remains in South Africa, a need exists to establish reliable facial approximation techniques that will take into account sex and age and, most importantly, be useful within the South African context. This study aimed to provide accurate statistical models for predicting nasal soft-tissue shape from information about the underlying skull subtract among a South African sample. The ...

Cone-beam computed tomography (CBCT) imaging of the maxillary sinus is indispensable for implantologists, offering three-dimensional anatomical visualization, morphological variation detection, and abnormality identification, all critical for diagnostics and treatment planning in digital implant workflows. The following systematic review presented the current evidence pertaining to the use of artificial intelligence (AI) for CBCT-derived ...