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The document targets towards analysis current braille characters, emphasis it's insufficiencies at instructing approaches aimed at little kids with recommend apparent results. This document concentrates largely upon the practice of braille and typography collectively with the fundamental braille writing system and is essential for constructive progress in association for blind kids. The principal...
This paper proposes a quality detection method of LED surface defects in dispensing back-end based on computer vision library HALCON. The key steps mainly include image preprocessing, image matching and defect detection, etc. Firstly, to choose the matching area automatically according to the regional characteristics of the LED chip. Secondly, image matching with standard template. Finally, complete...
Ophthalmometers are very important for clinical ophthalmology and usually used to measure the radius of curvature, direction of principal meridian and keratometric dioptre of the human cornea. In order to realize the calibration and quality evaluation of ophthalmometers, standard devices based on reflection principle are developed. It consists of both radius and axial standard device. The radius standard...
The overall shape of a sand grain can be defined by two morphological properties, namely sphericity and roundness, and it is largely determined by soil-formation and weathering processes. In this paper, we investigate the effects of these properties on the visible and near-infrared reflectance of sand-textured soils characterized by the presence of iron oxides. Our investigation is supported by computer...
In this work, we present intrinsic shape context (ISC) descriptors for 3D shapes. We generalize to surfaces the polar sampling of the image domain used in shape contexts: for this purpose, we chart the surface by shooting geodesic outwards from the point being analyzed; ‘angle’ is treated as tantamount to geodesic shooting direction, and radius as geodesic distance. To deal with orientation ambiguity,...
This paper discusses the manner in which cinema buildings of the 20th century represent both an important physical record of society, and a challenge in terms of representing a complex range of historical, cultural, economic and physical data sets.The paper provides an overview of visualisation techniques which are appropriate to the subject, and provides a case study taken from the city of Aberdeen...
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