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Showing 1 to 20 of 22 for “"TA1501-1820 Applied optics. Photonics"”.
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A new optimization uniformity for indoor visible light communication systems using optical attocells configuration
The demand for high data rate, capacity, increasing user mobility as well as low power consumption is increasing daily, where it is considered as main the challenges facing the radio frequency (RF) technology. Therefore, an alternative technology called visible light communications (VLC) was …
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Driver’s fatigue detection system based on facial features
With increasing number of vehicles on roads the risk of getting involved in an accident is increasing as well. In Malaysia alone, the number of traffic accidents in 2007 almost doubled as compared to the number of traffic accidents that occurred in 1997. This high accident rate has led to road …
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Comparative analysis of image search algorithm using average RGB, local color histogram, global color histogram and color moment HSV
… images based on colour. These techniques are applied on the collection of three images chosen randomly from each class of Wang images database. The performance of each technique has been individually evaluated, in terms of Execution Time, Precision, Recall, Accuracy, Redundancy Factor and Fall …
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Enhancement of image recognition in digital close-range photogrammetry using mathematical equations and camera calibration
The use of close-range photogrammetry technique via mathematical modelling and camera callibration are becoming an interesting area in reverse engineering to describe relationships between spatial objects in various applications. It has been used as an alternative solution to conventional methods …
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Production of zinc iron phosphate glasses by microwave and conventional processing methods
This thesis describes the production of zinc iron phosphate glasses, xZnO-(40- x)Fe2O3-60P2O5 with x = 0, 2.5, 5.0, 7.5, 10.0 (mol%) using microwave and conventional processing methods. The work aiming to investigate the potential use of microwave processing method for the production of zinc iron …
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Development of a 3d bioprinting system, characterisation of bioink and printing microspheroids of hela cells
In Malaysia, Industrialised Building System (IBS) has been recognised as a potential solution in improving the deliverables of construction projects. However, the acceptance of this modern technology is still low. Most of the construction players prefer the conventional construction method which …
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All-optical 2r regenerator based on self-phase modulation
Nowadays, optical regeneration is getting popularity as it provides an effective way of coping with transmission impairment. Transmission impairments degrade the quality of optical signals and thus, ultimately limiting the achievable transmission distance. Optical 2R regenerators provide an …
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Band anti-crossing modelling and characterization of multi quantum well gainnas for photovoltaic application
A recent study of Ga0.952In0.048N0.016As0.984 /GaAs multi-quantum-well (MQW) p-i-n diode has reported that it is able to operate in near-infrared applications (800-1100nm). Nevertheless, there is no elucidations on the effect of indium (In) and nitrogen (N) fractions on electronic band transition, …
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Data redundancy reduction using sensitivity analysis method for machine-learning-based battery management system
… dataset. The newly discovered finding is applied to the ML-based BMS. In the development of the training dataset, a reduced-sized dataset is formed by excluding current, discharge time, and power from the training dataset for the real-time battery-parameter monitoring in BMS. The newly …
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Feature extraction using two dimensional (2D) legendre wavelet filter for partial iris recognition
An increasing need for biometrics recognition systems has grown substantially to address the issues of recognition and identification, especially in highly dense areas such as airports, train stations, and financial transactions. Evidence of these can be seen in some airports and also the …
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Kaedah pengesanan automatik salur darah retina untuk imej digital fundus
Retinaialahsatulapisanmembranyangterletakpadabelakangmatayangboleh menggambarkankeseluruhanimejsalurdarahmenggunakankamerafundus.Struktur salur darahpadaretinamampumemberikanpetunjukpentinguntukmengenalpasti penyakit-penyakityangberkaitanmatadanbadan.Penyakitberkaitanoftalmikdapat dibuktikan …
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Water level monitoring and controlling of water treatment plants using wireless sensors in LabVIEW
Monitoring and controlling systems are taken as the main entity of any field which can ensure for the effective performance, hence its importance is rising exponentially in industry field. There can be many factors which can bring variations in those systems. This may cease the efficiency of the …
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Optical fiber temperature sensor based on fiber bragg grating
It is important to study optical fiber temperature sensor based on fiber Bragg Grating. The Fiber Bragg grating sensors can offer highly sensitive, cost effective solutions for optical sensing. While fiber Bragg gratings have been implemented in various sensing applications over the past few …
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A study on laser engraving process parameters and performance characteristics for wood base materials
Nowadays, laser engravings have become the most innovative technology used to engrave or mark an object by removing materials layer by layer. This research presents a study on the parameter of laser engraving on pine wood and WPC materials by using EleksMaker Laser A5-Pro model with low diode laser …
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Improved thresholding and quantization techniques for image compression
In recent decades, digital images have become increasingly important. With many modern applications use image graphics extensively, it tends to burden both the storage and transmission process. Despite the technological advances in storage and transmission, the demands placed on storage and …
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Strain sensor using fiber bragg grating interrogation
This research aims to focus on analyzing a novel design of strain sensor using Fiber Bragg Grating (FBG) interrogation. Studies on fiber optic sensors reported have mainly focused on FBG wavelength-based monitoring method by using optical spectrum analyzers (OSA). Although FBG has better strain …
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Development of a human fall detection system based on depth maps
Assistive care related products are increasingly in demand with the recent developments in health sector associated technologies. There are several studies concerned in improving and eliminating barriers in providing quality health care services to all people, especially elderly who live alone and …
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New techniques for multiple wavelength fiber laser generation based on edfa and tdfa
Multiple wavelength fiber laser (MWFL) can be a potential source for microwave generation as the conventional microwave generator have several issues in generating high frequency. In order to be such source, the MWFL must have the following criterion; a great number of comb lines, a compact design, …
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Depth estimation from 3D reconstructed scene using stereo vision
In the past few years, a growing interest in mobile robot’s applications produce a persistent need to develop assistive systems that can help those robots to do their job efficiently. Distance estimation is one of these applications that a lot of researches made to develop it. Visionary sensors …
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Performance evaluation of alsi10mg mould insert material fabricated by selective laser melting process
In this thesis the physical properties, mechanical properties, different profile building feasibility and dimension accuracy of AlSi10Mg samples fabricated by selective laser melting (SLM) technique, as well as novel fabrication strategies as an alternative to conventional methods in order to …
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