Device-based decision-making for adaptation of three-dimensional content

The goal of this research was the creation of an adaptation mechanism for the delivery of three-dimensional content. The adaptation of content, for various network and terminal capabilities – as well as for different user preferences, is a key feature that needs to be investigated. Current state-of-the art research of the adaptation shows promising results for specific tasks and limited types of content, but is still not well-suited for massive heterogeneous environments. In this research, we present a method for transmitting adapted three-dimensional content to multiple target devices. This paper presents some theoretical and practical methods for adapting three-dimensional content, which includes shapes and animation. We also discuss practical details of the integration of our methods into MPEG-21 and MPEG-4 architectures.     

Continuous collision detection for adaptive simulation of articulated bodies

We perform continuous collision detection (CCD) for articulated bodies where motion is governed by an adaptive dynamics simulation. Our algorithm is based on a novel hierarchical set of transforms that represent the kinematics of an articulated body recursively, as described by an assembly tree. The performance of our CCD algorithm significantly improves as the number of active degrees of freedom in the simulation decreases.     

Software Architecture Reconstruction: A Process-Oriented Taxonomy

To maintain and understand large applications, it is important to know their architecture. The first problem is that unlike classes and packages, architecture is not explicitly represented in the code. The second problem is that successful applications evolve over time, so their architecture inevitably drifts. Reconstructing the architecture and checking whether it is still valid is therefore an important aid. While there is a plethora of approaches and techniques supporting architecture reconstruction, there is no comprehensive software architecture reconstruction state of the art and it is often difficult to compare the approaches. This paper presents a state of the art in software architecture reconstruction approaches.     

Crossing textual and visual content in different application scenarios

This paper deals with multimedia information access. We propose two new approaches for hybrid text-image information processing that can be straightforwardly generalized to the more general multimodal scenario. Both approaches fall in the trans-media pseudo-relevance feedback category. Our first method proposes using a mixture model of the aggregate components, considering them as a single relevance concept. In our second approach, we define trans-media similarities as an aggregation of monomodal similarities between the elements of the aggregate and the new multimodal object. We also introduce the monomodal similarity measures for text and images that serve as basic components for both proposed trans-media similarities. We show how one can frame a large variety of problem in order to address them with the proposed techniques: image annotation or captioning, text illustration and multimedia retrieval and clustering. Finally, we present how these methods can be integrated in two applications: a travel blog assistant system and a tool for browsing the Wikipedia taking into account the multimedia nature of its content.

Evaluation of MODIS data for improved monitoring of the Caspian Sea

Moderate-Resolution Imaging Spectroradiometer (MODIS) optical and infrared data are used to monitor changes in the Caspian Sea coastline. The information extracted from MODIS images is converted into total water volume and mean lake level by combining a digital elevation model (DEM) with remote-sensing data. The elevation estimates were enhanced by reprocessing the MODIS data at the sub-pixel scale. The water volume variations estimated from MODIS data along with DEM are compared to other estimations derived from altimetry data sets, and show fair agreement.     

New low-dimensional solids: Tellurium-rich alkali metal tellurides

The crystal and electronic structure of several recently reported tellurium-rich alkali metal tellurides is discussed. Some of these materials contain defective square planar tellurium lattices, which on the basis of band structure calculations are expected to be new low-dimensional metals. The structural interrelations between some of these new phases can be understood once the primordial template role of the alkali metal as well as the secondary Te…Te interactions are considered. Tellurium-rich alkali metal tellurides seem to be promising materials in the search for new solids with interesting structural and electronic properties.     

Bin-picking with a solid state range camera

In this paper we present new work done on the bin-picking problem. The work was triggered by the advent of a new solid state range camera which enables the economic and robust use of range imagery in industrial robotic automation tasks. The application presented is that of pick-and-place of randomly oriented but known polyhedral objects in an industrial robotic work cell. The algorithms for segmentation, pose estimation, and grasp point determination are presented along with practical results from a real industrial grade work cell.     

ADSL调制解调器的保护线路接口设计

异步数字用户线路(ADSL)调制解调器由于同普通电话线相连,容易遭受电击。因此,必须施加恰当保护,以抵抗破坏性过压和压流的冲击。通晓保护标准、指导原则和器件,可以提高设计人员保护ADSL调制解调器的电话线及数据线免遭过压冲击的能力。如表1所示,标准的选择取决于设备类型、在网络中的位置和网络的地理区域。对于并联元器件,特别是具有急剧短路特性的器件,可以提供必要的雷电冲击保护功能。急剧短路器件的优点是可以高效地短接电话双绞线,消除过压,而且热量极小。在正常电压下,急剧短路器件保持开路状态。器件的电流处理能力取决于器…     

Do interpersonal traits predict affect? A comparison of three models.

Predictions from interpersonal traits to affect were examined in the context of 3 models. In the global trait model, traits were used to predict affect aggregated over a 20-day period. In the situational congruence model, traits were used to predict affect in trait-relevant situations. In the behavioral concordance model, the co-occurrence between behaviors and affect was examined for individual participants, and then traits were used to predict the degree to which behavior and affect co-occurred. No support was found for the global trait and situational congruence models. Support was found for the behavioral concordance model for 3 of the 4 traits. Individuals high on agreeableness and quarrelsomeness experienced pleasant affect when they engaged in behaviors concordant with their traits. Individuals high on agreeableness, quarrelsomeness, and dominance experienced unpleasant affect when they engaged in behaviors opposite to their traits. (PsycINFO Database Record (c) 2010 APA, all rights reserved)