Composite languages are composed of multiple sub-languages. Examples include the parser specification languages read by parser generators like Yacc, modern extensible languages with complex layers of domain-specific sub-languages, and even traditional programming languages like C and C++. In this dissertation, we describe PSLR(1), a new scanner-based LR(1) parser generation system that automati...

The clinical study aimed to evaluate the repeatability of Intraoral Scanner (IOS) in terms dental shade selection comparison visual method and find if difference between these two methods is clinically acceptable. As well as assess impact tooth position on IOS selection. Two experienced raters have selected shades 38 right maxillary incisors, canines, molars patients different days under same c...

Multiple laser scanner hardware configurations can be applied to Mobile Mapping Systems. As best practice, laser scanners are rotated horizontally or inclined vertically to increase the probability of contact between the laser scan plane and any surfaces that are perpendicular to the direction of travel. Vertical inclinations also maximise the number of scan profiles striking narrow vertical fe...

Background: The purpose of this in vitro study was to compare the implant axis’ spatial position and orientation by using laboratory scanner versus intra-oral with three different scan abutments. Methods: A 3D model printed an internal hex analog place teeth 35#. Three standard abutments were used: MIS (two-piece titanium), AB PEEK titanium base) ZZ (one-piece PEEK). Each abutment scanned 30 ti...

The purpose of this work was to assess the reproducibility of diffusion imaging, and in particular the apparent diffusion coefficient (ADC), intra-voxel incoherent motion (IVIM) parameters and diffusion tensor imaging (DTI) parameters, across multiple centres using clinically available protocols with limited harmonization between sequences. An ice-water phantom and nine healthy volunteers were ...

Abstract Currently, the need for a 3D model that represents existing condition of building is needed, especially management. While performed mapping utilities such as pipelines in buildings, Terrestrial Laser Scanner (TLS) technology couldn’t cover object ceiling, so Handheld (HS) was used to complete scanned objects. The purpose this article conducting process between HS and TLS pipelines. int...