The forming of low and high strength tailor welded steel sheets into preferred three-dimensional shapes by a homogeneous distribution plastic strain is highly difficult. In this work, the formability tailor-welded blanks prepared using laser welding (IS 513 CR2, IS CR3) tensile (AISI 304) were analyzed formation edge profile weld line movement was also examined. results showed decrease in chara...

Remote sensing may offer quick and economical methods of surveying road centerline geometry and condition. This research uses a combination of 4 m, 224-band AVIRIS hyperspectral imagery, and about 6000 field-gathered spectra, to develop a spectral library of urban materials. It attempts to extract roads of various types, and investigates the spectral signatures associated with different qualiti...

Extraction of centerlines is useful in interactive navigation and analysis of objects in medical images, such as the lung, bronchia, blood vessels, and colon. Given the noise and other imaging artifacts that are present in medical images, it is crucial to use robust algorithms that are (1) accurate, (2) noise tolerant, (3) computationally efficient, and (4) preferably do not require an accurate...

// Step ii): apply the centerline extraction from confidence image. GeodesicGraphComputer::TSet aConfidenceSet (imConf.domain ()); // ii. a) Thresholding the confidence image: for (auto const &p: imConf.domain ()) if(imConf(p)>= 0.5) aConfidenceSet .insert (p); P3d p0 = acc. getMaxAccumulationPoint(); // ii. b) Computing the graph: GeodesicGraphComputer gg(4, aConfidenceSet , 3, acc.getDomain()...

The second Laplace-Beltrami eigenfunction provides an intrinsic geometric way of establishing natural coordinates for elongated 3D anatomical structures obtained from medical images. The approach is used to establish the centerline of the human mandible from CT and provides automated anatomical landmarks across subjects. These landmarks are then used to quantify the growth pattern of the mandib...

During the dynamic measurement of chord-based rail corrugation, with interferences curve and train snaking movement, it is hard to ensure that measuring points on surface can trace railhead centerline well whole time. This introduces position deviations system, leads results cannot reflect true irregularity state. To solve problem, a deviation method based assistance bi-linear laser proposed in...

Collecting information about the roadway infrastructure is a task that DOTs at all governmental levels need to accomplish. One way to increase the operational efficiency of these efforts is to use a relatively inexpensive mobile data collection platform that acquires information that is general enough to serve multiple purposes. The design and evaluation of one such platform that costs roughly ...