OBJECTIVE To investigate swallowing laterality in hemiplegic patients with stroke and recovery of dysphagia according to the laterality. METHOD The sample was comprised of 46 dysphagic patients with hemiplegia after their first stroke. The sample's videofluoroscopic swallowing study (VFSS) was reviewed. Swallowing laterality was determined by the anterior-posterior view of VFSS. We measured w...

Text in images is a very important clue for image indexing and retrieving. Unfortunately, it is a challenging work to accurately and robustly extract text from a complex background image. In this paper, a novel region-based text extraction method is proposed. In doing so, the candidate text regions are detected by 8-connected objects detection algorithm based on the edge image. Then the non-tex...

BACKGROUND AND PURPOSE Our purpose was to characterize the surface area of the infarct and the surface area at risk of infarction as defined spatially by arterial anastomoses to determine whether position, size, or shape of the infarct and the area at risk were related in stroke-prone rats or hybrid rats. METHODS Stroke-prone rats (n = 18; mean +/- SEM blood pressure, 182 +/- 8 mm Hg) and hyb...

Most near vision reading charts include the visual acuity values. On the one hand, most reading charts are constructed using the Times New Roman typography. On the other hand, visual acuity is commonly measured with optotypes not with typographies. In this paper, an objective analysis by image processing of the stroke width of some typographies (Times New Roman, Arial, Arial Bold, Sloan and Opt...

We implemented an algorithm to extract text from reagent labels to facilitate the retrieval of safety information in a laboratory using an Android mobile device. Our algorithm combined the stroke width transform and a variety of connected component filters to detect text candidates. These were then processed using Tesseract, an open-source optical character recognition engine. We concluded that...

My project aims at detecting text segments in an image of a natural scene, by using an enhanced version of the Stroke Width Transform [1]. The application receives an RGB image to search in, and returns a new image where the discovered text segments are marked. Due to the features of the SWT, the resulting system is able to detect text regardless of its scale, direction, font and language.

The design of grating-assisted, channel waveguide, codirectional couplers is demonstrated using the Gel’fand-Levitan-Marchenko inverse scattering method. Weighted coupling coefficients are computed from rational function expressions for the desired wavelength response. Approximate formulas are derived which relate the waveguide and grating geometries to the computed coupling coefficients. The t...

We report a new turning film structure for widening the viewing angle of a vertical-field-switching blue-phase liquid crystal display, which employs a directional backlight. The turning film consists of periodic prismatic structures: each period has three prisms with different base angles so that the output light can be spread to a larger angle. Simulation results show that a full width at half...

Let P be a set of n points in d-dimensional Euclidean space. A (k,eps)-kernel is a subset of P that, for every direction, epsilon-approximates the directional width of P, when k “outliers’’ can be ignored in that direction. We prove that small (k,eps)-kernels exist and describe efficient algorithms for computing them. Such kernels are instrumental in solving shape-fitting problems with k outlie...

Abstract Numerical simulation of directional coupler that is based on the finite element method was conducted using COMSOL Multiphysics software. The distributions electric field and power flow light propagates in two cores were analyzed. results showed dependencies coupling length maximum transfer between separation wavelength, characteristic a subwavelength can be used for photonic integrated...