高速ビジョンを用いたリアルタイムビデオモザイキングと安定化に関する研究

広島大学(Hiroshima University)博士(工学)Doctor of Engineeringdoctora

Characteristics of Water Supply System in K Village: Problems and Villagers’ Awareness <Research Note>

K village is located in the state of Uttarakhand, India, which has small areas of irrigated farmland. However, the village itself has large areas of irrigated farmland. We interviewed the villagers regarding the water that they utilize for drinking and irrigation on a daily basis, while observing the actual situation on the ground. Through interviews, we noted that less than 50% of the people perceive issues of water shortage during dry season and water pollution. In addition, by direct observation on the field, we traced the pipeline between KT Hamlet of K Village and Sariyatal lake, which lies to the north of this village. We also surveyed the causes of water shortage and water pollution. In this fieldwork, we did not observe any water shortage. However, we did observe several causes of water pollution, including the garbage generated by tourists, detergent used for washing cars, and bloated algae. However, villagers were not aware of these causes. Through this paper, we hope to inform the villagers of probable health issues to animals and human beings, indirectly caused by water pollution. In addition, it is very important to communicate to the villagers that the results of our survey are significantly different from their perception.Special Issue “Developmental Challenges in Rural India: A Village Level Examination in Himalayan Mountains

Prevalence and study of lipid abnormalities in nephrotic syndrome attending a tertiary hospital, Nepal

Background: The nephrotic syndrome is a common presentation of adult or pediatric kidney diseases characterized by proteinuria, dyslipidemia, edema and hypoalbuminemia. Mainly, two types of dyslipidemia are observed: elevated serum cholesterol alone (hypercholesterolemia) and elevation of serum cholesterol along with triglyceride (combined hyperlipidemia). Therefore, majority of patients could predispose for the development of coronary artery disease and other related complications.Methods: This was the prospective hospital-based study conducted in Tribhuvan University Teaching Hospital (TUTH), Nepal. Total sixty patients who meet the inclusive criteria were selected and enrolled from Nephrology outpatient department (OPD) and ward, attending from May 2009 till August 2010.Results: In this study, total sixty patients were enrolled who was diagnosis as primary nephrotic syndrome that was established by clinical parameters supported by renal biopsy. Minimal change glomerulonephritis was common diagnosis by renal biopsy followed by Focal segmental glomerulosclerosis (FSGS). The total serum cholesterol, TG and HDL was normal in 25%, 15%, 83.3% whereas, it is high among 75%,85% and 1.7% of the study populations. Similarly, 24hour urinary protein was >3.5gm/day in all patients. Total serum protein and albumin was normal in 18.3% and 8.3% respectively whereas, rest of the patients had low serum protein and albumin levels. TC/HDLc ratios were and among them, 70% had moderate to high risk value. Similarly, in this study, the serum cholesterol, TG and TC/HDL level was inversely correlated with low protein and albumin.Conclusions: Majority of patients have derangement of lipid profile among nephrotic syndrome patients, which could also predispose for the development of coronary artery disease

Visual-Feedback-Based Frame-by-Frame Synchronization for 3000 fps Projector–Camera Visual Light Communication

This paper proposes a novel method for synchronizing a high frame-rate (HFR) camera with an HFR projector, using a visual feedback-based synchronization algorithm for streaming video sequences in real time on a visible-light communication (VLC)-based system. The frame rates of the camera and projector are equal, and their phases are synchronized. A visual feedback-based synchronization algorithm is used to mitigate the complexities and stabilization issues of wire-based triggering for long-distance systems. The HFR projector projects a binary pattern modulated at 3000 fps. The HFR camera system operates at 3000 fps, which can capture and generate a delay signal to be given to the next camera clock cycle so that it matches the phase of the HFR projector. To test the synchronization performance, we used an HFR projector–camera-based VLC system in which the proposed synchronization algorithm provides maximum bandwidth utilization for the high-throughput transmission ability of the system and reduces data redundancy efficiently. The transmitter of the VLC system encodes the input video sequence into gray code, which is projected via high-definition multimedia interface streaming in the form of binary images 590 × 1060. At the receiver, a monochrome HFR camera can simultaneously capture and decode 12-bit 512 × 512 images in real time and reconstruct a color video sequence at 60 fps. The efficiency of the visual feedback-based synchronization algorithm is evaluated by streaming offline and live video sequences, using a VLC system with single and dual projectors, providing a multiple-projector-based system. The results show that the 3000 fps camera was successfully synchronized with a 3000 fps single-projector and a 1500 fps dual-projector system. It was confirmed that the synchronization algorithm can also be applied to VLC systems, autonomous vehicles, and surveillance applications

Anti-Inflammatory and Antinociceptive Activities of a Hydroethanolic Extract of Tamarindus indica Leaves

The present study aimed to investigate the anti-inflammatory and anti-nociceptive potential of a hydroethanolic extract of Tamarindus indica L. leaves (HTI) along with its possible mode of action. The anti-inflammatory activity of HTI was estimated by carrageenan-induced hind paw oedema in male Wistar albino rats. Furthermore, HTI was assessed to determine its effects on membrane stabilization. The antinociceptive action was determined by acetic acid-induced writhing, tail-flick, and the hot plate model. Oral administration of HTI at the dose of 500, 750, and 1000 mg/kg body weight produced significant (P &lt; 0.01) anti-inflammatory as well as antinociceptive actions in a dose-dependent manner. Among all tested doses, 1000 mg/kg, p. o. reduced carrageenan-induced rat paw oedema at 1, 2, 3, and 4 h. Moreover, the 1000 mg/kg dose exhibited maximum percentage inhibition of acetic acid-induced writhing (48.9%), whereas standard drug diclofenac (25 mg/kg, p. o.) showed maximum inhibition (50.9%) of writhing. In the hot plate model, HTI (1000 mg/kg, orally) increased mean basal reaction time after 120 min (7.12±0.05 sec). In the tail flick model, HTI increased the maximum percentage of latency (36.06%), whereas the standard drug pethidine (4 mg/kg, intraperitoneally) showed maximum percentage of latency (43.85%) after 60 min. The findings of the present study supported anti-inflammatory and antinociceptive claims of T. indica as were mentioned in Indian traditional and folklore practices

A study the various clinical and electrophysiological parameters of severity of carpal tunnel syndrome, their correlation with post-operative recovery

Objective: We aimed to study the various clinical and electrophysiological parameters of severity of carpal tunnel syndrome (CTS) and to see if the severity of CTS affects recovery after surgery. Patients and Methods: A prospective study of 35 patients suffering from CTS. Clinical severity was assessed using visual analogue scale and standard questionnaires such as Levine and Disabilities of Arm, Shoulder and Hand questionnaires. All the patients underwent electrophysiological evaluation to assess electrophysiological severity of CTS. According to modified Padua classification, they were classified into three groups, namely, minimal to mild, moderate and severe to extreme. All patients underwent Carpal tunnel release in our unit. The clinical assessment was repeated 3 months post-operatively. Results: Out of 33 patients, majority (65.7%) of the patients were suffering from moderately severe CTS. The clinical provocative tests were positive in majority of patients. Clinically and statistically significant (P 0.05). Conclusions: Although pre-operative clinical scores of severity and electrophysiology have a diagnostic role in CTS, they do not correlate with post-operative recovery and in turn fail to predict the extent of post-operative recovery before surgery