In this work, a novel histogram comparison based road surface detection approach which can be used in advanced driving assistance systems (ADAS) is proposed. The proposed method employs a lane detection approach to decide vanishing line. After the vanishing line is obtained, only the region below this point is processed. At the next stage, center of gravity (CoG) values of 1×k sized regions sel...

The shape reconstruction of a 3D object from its 2D crosssections is important for reproducing it by NC machining or rapid prototyping. In this paper, we present a method of surface approximation to cross-sections with multiple branching problems. In this method, we first decompose each multiple branching problem into a set of single branching problems by providing a set of intermediate contour...

We define a generalized distance function on an unoriented 3D point set and describe how it may be used to reconstruct a surface approximating these points. This distance function is shown to be a Mahalanobis distance in a higher-dimensional embedding space of the points, and the resulting reconstruction algorithm a natural extension of the classical Radial Basis Function (RBF) approach. Experi...

We have developed a noncontact proximity sensor which can measure the distance and orientatiorr of a surface in a range of four to jive centimeters. The sensor is based on the scheme of active illumination and triangulation It uses multiple infrared LEDs as the light sources and a PIN-diode area sensor chip f i r detecting the spot positions. Six LEDs with optics for collimating the beam are mo...

Phototherapy is a conventional method of lowering serum bilirubin in newborn jaundice. We evaluated the short distance in relation to conventional long distance phototherapy between the light-source and the skin surface. Healthy jaundiced neonates undergoing phototherapy were randomized into two groups. The distance between the light-source and the newborn's skin was 20 and 40 centimeters (G20;...

phototherapy is a conventional method of lowering serum bilirubin in newborn jaundice. we evaluated the short distance in relation to conventional long distance phototherapy between the light-source and the skin surface. healthy jaundiced neonates undergoing phototherapy were randomized into two groups. the distance between the light-source and the newborn's skin was 20 and 40 centimeters (g20;...

Purpose. To evaluate agreement between measured and intended distance of Keraring (Mediphacos, Belo Horizonte, Brazil) intracorneal ring segments from the anterior and posterior corneal surfaces. Methods. Twenty-six Keraring ICRS implanted in 24 keratoconic eyes were examined. The distance from the Keraring apex to the anterior corneal surface and the distance from the inner and the outer corne...

The fast inspection of technical processes gains increasing importance. Time resolved distance and shape measurements of the dynamic deformation of high speed rotating objects are challenging. The measurement rate of conventional distance sensors is limited, since their uncertainty strongly increases with the surface velocity of the inspected object. In contrast, the recently developed laser Do...

This paper 3 proposes a new method to qualify the result given by a decision tree when it is used as a decision aid system. When the data are numerical, we compute the distance of a case from the decision surface. This distance measures the sensitivity of the result to a change in the input data. With a different distance it is also possible to measure the sensitivity of the result to small cha...

Introduction: Megavoltage X-ray beams are used to treat cervix cancer due to their skin-sparing effect. Preferably, the radiation surface doses should be negligible; however, it increases due to electron contamination produced by various field parameters. Therefore, it is essential to provide proper knowledge about the effect of different field parameters on radiation doses. This study sought t...