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Interactive computation of global illumination is a major challenge in current computer graphics research. Global illumination heavily affects the visual quality of generated images. It is therefore a key attribute for the perception of photo-realistic images. Path tracing is able to simulate the physical behaviour of light using Monte Carlo techniques.(More)
Visual exploration of multivariate data typically requires projection onto lower-dimensional representations. The number of possible representations grows rapidly with the number of dimensions, and manual exploration quickly becomes ineffective or even uoJeasi-ble. This paper proposes automatic analysis methods to extract potentially relevant visual(More)
The aim of this study was to investigate resilience in relation to age and gender, and to elucidate the underlying structure of the Swedish version of the Resilience Scale (RS). The RS, originally created by Wagnild and Young is a 25 items scale of Lickert type with possible scores ranges from 25 to 175, the higher the score, the stronger resilience. A(More)
BACKGROUND In patients with very severe dementia self-rating of quality of life usually is not possible and appropriate instruments for proxy-ratings are not available. The aim of this project is to develop an instrument of clinical proxy-ratings for this population. METHODS Using electronic instruments, physicians and nurses recorded patient behaviour(More)
We used filtered low spatial frequency images of facial emotional expressions (angry, fearful, happy, sad, or neutral faces) that were blended with a high-frequency image of the same face but with a neutral facial expression, so as to obtain a "hybrid" face image that "masked" the subjective perception of its emotional expression. Participants were(More)
In a pilot study of 72 psychiatric inpatients, relationships between state versus trait aspects of depression and perceived parental rearing have been investigated. It appeared that trait aspects (assessed by the mood scale of the Giessen test) yielded the most frequent and highest correlations with the factors rejection, emotional warmth and overprotection(More)
30 in-patients, 14 male and 16 female, aged 24-69 years (mean age 47.1 +/- 2.7) suffering from a moderately severe or severe depressive syndrome completed a new personality inventory, the KSP, on two separate occasions. The first-when they were depressed and had just been admitted to the hospital, the second when they were at home and in their customary(More)
We present a novel multi-view, projective texture mapping technique. While previous multi-view texturing approaches lead to blurring and ghosting artefacts if 3D geometry and/or camera calibration are imprecise, we propose a texturing algorithm that warps (" floats ") projected textures during run-time to preserve crisp, detailed texture appearance. Our GPU(More)
Visual exploration of multivariate data typically requires projection onto lower dimensional representations. The number of possible representations grows rapidly with the number of dimensions, and manual exploration quickly becomes ineffective or even unfeasible. This paper proposes automatic analysis methods to extract potentially relevant visual(More)
Parallel coordinates and scatterplot matrices are widely used to visualize multi-dimensional data sets. But these visualization techniques are insufficient when the number of dimensions grows. To solve this problem, different approaches to pre-select the best views or dimensions have been proposed in the last years. However, there are still several(More)