Are we ready to segment consumer stereo videos? The amount of this data type is rapidly increasing and encompasses rich information of appearance, motion and depth cues. However, the segmentation of such data is still largely unexplored. First, we propose therefore a new benchmark: videos, annotations and metrics to measure progress on this emerging challenge. Second, we evaluate several state ...

This paper examines how and why transport prices become imbalanced with respect to the direction of shipments and how this affects economic geography. It is shown that the equilibrium transport price of the shipment in a particular direction is a nondecreasing function of the relative size of the embarkation region. Furthermore, we show that the directional imbalance in transport prices increas...

With reference to the concept of ‘ the stages of life ’ rather than ‘ages ’, this paper examines the possibilities of estimating population figures for the First, Second and Third Ages in the United Kingdom, both for the present and at points in the past. The approach utilises the economic status of the citizenry – in particular, before, during and after paid work – rather than their ages or bi...

In this paper we take a general look at forward pruning in tree search. By identifying what we think are desirable characteristics of pruning heuristics, and what attributes are important for them to consider, we hope to understand better the shortcomings of existing techniques, and to provide some additional insight into how they can be improved. We view this work as a first step towards the g...

The horizontal separation of the eyes results in the projection of slightly different images in each eye that are used to recover depth. One source of depth information is disparity, the relative position of paired features in the two eyes. Another source of depth information comes from features that are present in only one eye's view. These unpaired features arise from occlusion and by definit...

" Das eben geschieht den Menschen, die in einem Irrgarten hastig wer-den: Eben die Eile führt immer tiefer in die Irre. " — Lucius Annaeus Seneca (4 n. Chr. – 65 n. Chr.) hierzu stellt die Tiefensuche (englisch depth-first search) dar, die wir nachfol-gend genauer betrachten wollen.

We study the Ginzburg-Landau functional in the parameter regime describing ‘Type II superconductors’. In the exact regime considered minimizers are localized to the boundary i.e. the sample is only superconducting in the boundary region. Depending on the relative size of different parameters we describe the concentration behavior and give leading order energy asymptotics. This generalizes previ...

Vernier offset thresholds for targets modulated in luminance or isoluminantly along the L-M axis were confirmed to be equal for targets whose contrasts were equal multiples of those required for detection. On the other hand, stereoscopic depth thresholds were elevated by a factor of 10 or more for isoluminantly modulated targets. Thresholds for vernier targets are 2 or 3 times larger with a gap...

Does perceptual grouping operate early or late in visual processing? One position is that the elements in perceptual layouts are grouped early in vision, by properties of the retinal image, before perceptual constancies have been determined. A second position is that perceptual grouping operates on a postconstancy representation, one that is available only after stereoscopic depth perception, l...