True Impostors offers an efficient method for adding a large number of simple models to any scene without having to render a large number of polygons. The technique utilizes modern shading hardware to perform ray casting into texture defined volumes. To achieve this, a virtual screen is set up in texture space for each impostor and inherits the same camera dependent orientation as the impostor....

The Renaissance architect, moral philosopher, cryptographer, mathematician, Papal adviser, painter, city planner and land surveyor Leon Battista Alberti provided the theoretical foundations of modern perspective geometry. Alberti’s work on perspective exerted a powerful influence on painters of the stature of Albrecht Dürer, Leonardo da Vinci and Piero della Francesca. But his Della pittura of ...

Consistency of the predictions: details and theorem proofs Additional file 2 provides a simple example to show that we need a per level traversal of the DAG, in which levels are defined in the sense of the maximum distance from the root, to obtain consistent predictions that obey the “true path rule”. Indeed looking at the HTD-DAG scores obtained respectively with the minimum and maximum distan...

background:  clavicle fractures are common and usually heal without complications. in this study, we evaluated the outcomes of non-operative versus operative management of displaced fractures.   methods:  in a prospective clinical trial study, sixty-five patients with displaced clavicle mid-shaft fractures were nonrandomly divided in two treatment groups. the first group underwent non-operative...

background: some studies have shown the possible role of protein‑energy malnutrition (pem) in persistence of endemic goiter in iodine replenished areas. the present study was conducted to assess the association between pem and goiter in schoolchildren of isfahan, iran. methods: in a cross‑sectional study using multistage cluster random‑sampling, 2331 schoolchildren with age ranged from 6‑13 yea...

Optical music recognition (OMR) is the recognition of images of musical scores. Recent research has suggested aligning the results of OMR from multiple scores of the same work (multi-score OMR, MS-OMR) to improve accuracy. As a simpler alternative, we have developed features which predict the quality of a given score, allowing us to select the highest-quality score to use for OMR. Furthermore, ...

In speaker verification, the result of a trial is traditionally summarised as an arbitrary score, where a higher score indicates stronger evidence in favour of the speaker hypothesis. However this is difficult to interpret. It is useful to convert this score into a “confidence level”, i.e. the posterior probability that the speaker hypothesis is correct, given the score. One of the simplest for...