this is a case presentation of a 26-year-old woman with a moderate-sized atrial septal secundum defect (17mm) who underwent catheterism, during which an amplatzer septal occluder number 26 was inserted successfully. on the second postoperative day, she deteriorated and a clinical examination showed a typical tamponade. after a percutaneous aspiration of the pericardial cavity and transient impr...

At the DARPA Grand Challenge in October 2005, laser range finders, especially the ones manufactured by SICK, were the predominant range sensors. Does that mean that stereo sensors are dead? No. It means that laser scanners satisfied the requirements of the Grand Challenge outdoor vehicle navigation application better than stereo. Stereo sensors, on the other hand, are the sensor of choice for s...

We propose circuit analysis and defect characteristics estimation methods using the bimodal RTN (random telegraph noise) model of the defect-centric distribution. The bimodal model takes into account the defect characteristics of both high-k and interface layers in gate dielectrics on a 40 nm SiON process, whereas the conventional unimodal model fails to replicate the effects of RTN on the proc...

Electricity distribution companies in many countries are required to maintain a regulated clearance space around all powerlines for bushfire mitigation and safety purposes. Vegetation encroachment of high voltage electricity line clearance space is a major problem for electricity distribution utilities. If not properly controlled, vegetation encroachment can lead to bushfire and public safety r...

This paper tackles the task of uncalibrated photometric stereo for 3D object reconstruction, where both shape, reflectance, and lighting directions are unknown. is an extremely difficult task, challenge further compounded with existence well-known generalized bas-relief (GBR) ambiguity in stereo. Previous methods to resolve this either rely on overly simplified reflectance model, or assume spec...

This paper presents a comprehensive theory of surface reconstruction from image derivatives in photometric stereo. For an object with an unknown, general isotropic BRDF, we show that just two measurements of the spatial and temporal image derivatives, under unknown light source positions on a circle, suffice to determine the surface. This result is the culmination of a series of fundamental obs...

In this report we will present a practical working pipeline for building a BRDF database of art painting. We use the MCSL Imaging Goniospectrometer collect BRDF measurements for 24 panels, each of which consists 25 different patches. For each patch on each panel, we recover the diffuse surface normals using photometric stereo method and fit the data using analytic BRDF models, such as Ward and ...

We demonstrate unsupervised learning of a stereo vision model involving monocular depth cues (shape from texture cues). We formulate a conditional probability model defining the probability of the right image given the left. This conditional model does not model a probability distribution over images. Maximizing conditional liklihood rather than joint liklihood is similar using a CRF (Condition...