Optical character recognition on heterogeneous SoC for HD automatic number plate recognition system

Automatic number plate recognition (ANPR) systems are becoming vital for safety and security purposes. Typical ANPR systems are based on three stages: number plate localization (NPL), character segmentation (CS), and optical character recognition (OCR). Recently, high definition (HD) cameras have been used to improve their recognition rates. In this paper, four algorithms are proposed for the OCR stage of a real-time HD ANPR system. The proposed algorithms are based on feature extraction (vector crossing, zoning, combined zoning, and vector crossing) and template matching techniques. All proposed algorithms have been implemented using MATLAB as a proof of concept and the best one has been selected for hardware implementation using a heterogeneous system on chip (SoC) platform. The selected platform is the Xilinx Zynq-7000 All Programmable SoC, which consists of an ARM processor and programmable logic. Obtained hardware implementation results have shown that the proposed system can recognize one character in 0.63 ms, with an accuracy of 99.5% while utilizing around 6% of the programmable logic resources. In addition, the use of the heterogenous SoC consumes 36 W which is equivalent to saving around 80% of the energy consumed by the PC used in this work, whereas it is smaller in size by 95%

Cortical histomorphometry of the human humerus during ontogeny

Modeling and remodeling are two key determinants of human skeletal growth though little is known about the histomorphometry of cortical bone during ontogeny. In this study we examined the density and geometric properties of primary and secondary osteons (osteon area and diameter, vascular canal area and diameter) in sub-periosteal cortical bone from the human humerus (n=84) between birth and age 18 years. Sections were removed from the anterior midshaft aspect of humeri from skeletons. Age-at-death was reconstructed using standard osteological techniques. Analyses revealed significant correlation between the histomorphometric variables and age. Higher densities of primary osteons occurred between infancy and seven years of age but were almost completely replaced by secondary osteons after 14 years of age. The geometry of primary osteons was less clearly related to age. Secondary osteons were visible after two years of age, and reached their greatest densities in the oldest individuals. Osteon size was positively but weakly influenced by age. Our data implies that modeling and remodeling are age dependent processes that vary markedly from birth to adulthood in the human humerus

The Prevalence of Complementary and Alternative Medications Use Among Dermatology Patients in Aseer Region, Saudi Arabia

Hend M Al-Atif,1 Hasan S AL-Ghamdi,2 Waad Abdulaziz Alzubaidi,3 Nejad Mubasher Alnaem,3 Saad Hussain Qahtani3 1Department of Internal Medicine, College of Medicine, King Khalid University, Abha City, Kingdom of Saudi Arabia; 2Internal Medicine Department, Division of Dermatology, Faculty of medicine, Albaha University, Albaha City, Kingdom of Saudi Arabia; 3College of Medicine, King Khalid University, Abha City, Kingdom of Saudi ArabiaCorrespondence: Hend M Al-Atif, Tel +966556464612, Email [email protected]: The utilization rate of complementary and alternative medication (CAM) is on the rise, especially for the general population. Despite the lack of scientific support, CAM has been used for decades and is more often used among chronic patients. This research examines the prevalence of CAM use in dermatology patients in the area of Aseer, Saudi Arabia.Materials and Methods: This research was done using a descriptive hospital-based cross-sectional survey among adults who attended the dermatological clinics at the major hospitals in the Aseer area of Southern Saudi Arabia. The dermatology outpatients were approached individually and were asked to fill out a survey about their usage of CAM therapies in the preceding year. The questionnaire included questions on patients’ socio-demographic data and clinical data on their dermatological condition, including duration and the effect on their daily life. The occurrence and pattern of CAM use and the type of CAM utilized were also examined.Results: 353 dermatological patients filled out the study questionnaire. Patients varied in age from 18 to above 60 years, with an average of 26.1 ± 12.9 years. 203 (57.5%) patients were females. 120 (34%) of the study patients reported using folk medicine with doctor medication for their dermatological disorder, 84 (23.8%) used folk medicine and stopped using medications prescribed by a doctor, while 149 (42.2%) never used folk medicine. The most used CAM was olive oil (22%), followed by sidr (21%), honey (19%), cactus (15%), henna (14%), and garlic (13%).Conclusion: More than half of the participants in this study used CAM, with nearly 1 out of 5 patients not using the medications prescribed by their physicians. Females with long-lasting diseases were the main users who reported using a variety of CAMs. Satisfactory results were experienced by nearly half of the patients.Keywords: complementary or alternative medications, dermatology, use, prevalence, knowledge, effect, Saudi Arabi

Orthodontic treatment need among young Saudis attending public versus private dental practices in Riyadh

Asma M Al-Jobair,1,2 Laila F Baidas,1,2 Anfal A Al-Hamid,2 Sara G Al-Qahtani,2 Amani T Al-Najjar,2 Huda M Al-Kawari1,2 1Department of Pediatric Dentistry and Orthodontics, 2College of Dentistry, King Saud University, Riyadh, Saudi Arabia Objective: To assess and compare the severity of malocclusion and orthodontic treatment need among young Saudis receiving free treatment at public dental practices versus those paying for treatment at private practices. Materials and methods: This retrospective study evaluated the records of 300 patients (179 females, 121 males; age 13–21 years) treated at orthodontic clinics from 2013 through 2015. The public sample was selected from orthodontic clinics at the College of Dentistry, King Saud University (KSU); the private sample was selected from five private orthodontic clinics in Riyadh, Saudi Arabia. The records were examined for the severity of malocclusion and for orthodontic treatment need using the Dental Health Component of the Index of Orthodontic Treatment Need. The prevalence of each occlusal discrepancy and the Dental Health Component grade were recorded. The severity of malocclusion and orthodontic treatment need were compared between practice types, age groups, and sexes with the chi-square test. Results: Displacement, increased overjet, and Class II and III malocclusion were the most common orthodontic problems in this study. Patients attending public clinics at KSU generally had more severe malocclusion than the patients attending private clinics. Seventy-seven percent of orthodontically treated patients at KSU clinics were in great need of treatment, compared with 58.5% of patients treated at private clinics (P=0.003). Among the patients with great treatment need, approximately 62% of male patients and 70% of patients ≤16 years of age were treated at KSU clinics, compared with 38% and 48%, respectively, treated at private clinics (P<0.0001). Conclusion: Young Saudis receiving free orthodontic treatment at public clinics at KSU had more severe malocclusion with greater need of orthodontic treatment than the patients paying for treatment at private clinics. Keywords: malocclusion, orthodontic treatment need, IOTN, public, privat