Log in

Relevant bibliographies by topics / Fractal Detection / Dissertations / Theses

To see the other types of publications on this topic, follow the link: Fractal Detection.

Dissertations / Theses on the topic 'Fractal Detection'

Author: Grafiati

Published: 5 June 2025

Last updated: 16 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 26 dissertations / theses for your research on the topic 'Fractal Detection.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Stein, Gregory W. "Target Detection Using a Wavelet-Based Fractal Scheme." ScholarWorks@UNO, 2006. http://scholarworks.uno.edu/td/437.

Full text

Abstract:

In this thesis, a target detection technique using a rotational invariant wavelet-based scheme is presented. The technique is evaluated on Synthetic Aperture Rader (SAR) imaging and compared with a previously developed fractal-based technique, namely the extended fractal (EF) model. Both techniques attempt to exploit the textural characteristics of SAR imagery. Recently, a wavelet-based fractal feature set, similar to the proposed one, was compared with the EF feature for a general texture classification problem. The wavelet-based technique yielded a lower classification error than EF, which m

APA, Harvard, Vancouver, ISO, and other styles

2

Tan, Teewoon. "HUMAN FACE RECOGNITION BASED ON FRACTAL IMAGE CODING." University of Sydney. Electrical and Information Engineering, 2004. http://hdl.handle.net/2123/586.

Full text

Abstract:

Human face recognition is an important area in the field of biometrics. It has been an active area of research for several decades, but still remains a challenging problem because of the complexity of the human face. In this thesis we describe fully automatic solutions that can locate faces and then perform identification and verification. We present a solution for face localisation using eye locations. We derive an efficient representation for the decision hyperplane of linear and nonlinear Support Vector Machines (SVMs). For this we introduce the novel concept of $\rho$ and $\eta$ prototypes

APA, Harvard, Vancouver, ISO, and other styles

3

Tan, Teewoon. "HUMAN FACE RECOGNITION BASED ON FRACTAL IMAGE CODING." Thesis, The University of Sydney, 2003. http://hdl.handle.net/2123/586.

Full text

Abstract:

Human face recognition is an important area in the field of biometrics. It has been an active area of research for several decades, but still remains a challenging problem because of the complexity of the human face. In this thesis we describe fully automatic solutions that can locate faces and then perform identification and verification. We present a solution for face localisation using eye locations. We derive an efficient representation for the decision hyperplane of linear and nonlinear Support Vector Machines (SVMs). For this we introduce the novel concept of $\rho$ and $\eta$ prototypes

APA, Harvard, Vancouver, ISO, and other styles

4

Gras, Fabrice Roger Pierre Fernand. "Fractal segmentation using Fourier and wavelet spectra." Thesis, Queensland University of Technology, 1997.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

5

Quinlan, Brendan Robert. "A Model For The Absorption Of Thermal Radiation By Gold-Black." Thesis, Virginia Tech, 2015. http://hdl.handle.net/10919/63888.

Full text

Abstract:

The work presented here addresses an important topic in thermal radiation detection when gold-black is used as an absorber. Sought is a model to simulate the absorption of thermal radiation by gold-black. Fractal geometry is created to simulate the topology of gold-black. Then electrical circuits based on the topology are identified that capture the physics of the interaction between the gold-black material and incident electro-magnetic radiation. Parameters of the model are then adjusted so results obtained are comparable to absorption data from the literature. Potential next-generat

APA, Harvard, Vancouver, ISO, and other styles

6

Relan, Devanjali. "Discovery of retinal biomarkers for vascular conditions through advancement of artery-vein detection and fractal analysis." Thesis, University of Edinburgh, 2016. http://hdl.handle.net/1842/23612.

Full text

Abstract:

Research into automatic retina image analysis has become increasingly important, not just in ophthalmology but also in other clinical specialities such as cardiology and neurology. In the retina, blood vessels can be directly visualised non-invasively in-vivo, and hence it serves as a "window" to cardiovascular and neurovascular complications. Biomarker research, i.e. investigating associations between the morphology of the retinal vasculature (as a means of revealing microvascular health or disease) and particular conditions affecting the body or brain could play an important role in detectin

APA, Harvard, Vancouver, ISO, and other styles

7

Benavides, Iglesias Alfonso. "Experimental time-domain controlled source electromagnetic induction for highly conductive targets detection and discrimination." Texas A&M University, 2003. http://hdl.handle.net/1969.1/5810.

Full text

Abstract:

The response of geological materials at the scale of meters and the response of buried targets of different shapes and sizes using controlled-source electromagnetic induction (CSEM) is investigated. This dissertation focuses on three topics; i) frac- tal properties on electric conductivity data from near-surface geology and processing techniques for enhancing man-made target responses, ii) non-linear inversion of spa- tiotemporal data using continuation method, and iii) classification of CSEM transient and spatiotemporal data. In the first topic, apparent conductivity profiles and maps were st

APA, Harvard, Vancouver, ISO, and other styles

8

Rankine, Luke. "Newborn EEG seizure detection using adaptive time-frequency signal processing." Thesis, Queensland University of Technology, 2006. https://eprints.qut.edu.au/16200/1/Luke_Rankine_Thesis.pdf.

Full text

Abstract:

Dysfunction in the central nervous system of the neonate is often first identified through seizures. The diffculty in detecting clinical seizures, which involves the observation of physical manifestations characteristic to newborn seizure, has placed greater emphasis on the detection of newborn electroencephalographic (EEG) seizure. The high incidence of newborn seizure has resulted in considerable mortality and morbidity rates in the neonate. Accurate and rapid diagnosis of neonatal seizure is essential for proper treatment and therapy. This has impelled researchers to investigate possible me

APA, Harvard, Vancouver, ISO, and other styles

9

Rankine, Luke. "Newborn EEG seizure detection using adaptive time-frequency signal processing." Queensland University of Technology, 2006. http://eprints.qut.edu.au/16200/.

Full text

Abstract:

Dysfunction in the central nervous system of the neonate is often first identified through seizures. The diffculty in detecting clinical seizures, which involves the observation of physical manifestations characteristic to newborn seizure, has placed greater emphasis on the detection of newborn electroencephalographic (EEG) seizure. The high incidence of newborn seizure has resulted in considerable mortality and morbidity rates in the neonate. Accurate and rapid diagnosis of neonatal seizure is essential for proper treatment and therapy. This has impelled researchers to investigate possible me

APA, Harvard, Vancouver, ISO, and other styles

10

Runhem, Lovisa, and Filip Schulze. "Evaluating a fractal features method for automatic detection of Alzheimer’s Disease in brain MRI scans : A quantitative study based on the method developed by Lahmiri and Boukadoum in 2013." Thesis, KTH, Skolan för datavetenskap och kommunikation (CSC), 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-166408.

Full text

Abstract:

The field of computer-aided diagnosis has recently made progress in the diagnosing of Alzheimer's disease (AD) from magnetic resonance images (MRI) of the brain. Lahmiri and Boukadoum (2013) have research this topic since 2011, and in 2013 they presented a system for automatic detection of AD based on machine learning classification. Their proposed system achieved a classification accuracy of 100% (2013, p. 1507) using support vector machines with quadratic kernel classifiers. The MRI scans were first translated to 1-dimensional signals, from which three features were extracted to measure the

APA, Harvard, Vancouver, ISO, and other styles

11

Navarro, Xavier. "Analysis of cerebral and respiratory activity in neonatal intensive care units for the assessment of maturation and infection in the early premature infant." Phd thesis, Université Rennes 1, 2013. http://tel.archives-ouvertes.fr/tel-00979727.

Full text

Abstract:

This Ph.D. dissertation processes and analyzes signals from the neonatal intensive care units (NICUs) for the study of maturity, systemic infection (sepsis) and the influence of immunization in the premature newborn. A special attention is payed to the electroencephalography and the breathing signal. The former is often contaminated by several sources of noise, thus methods based on the signals decomposition and optimal noise cancellation, adapted to the characteristics of the immature EEG, were proposed and evaluated objectively on real and simulated signals. By means of the EEG and delta bur

APA, Harvard, Vancouver, ISO, and other styles

12

Jaskowak, Daniel Joseph. "Detecting Transient Changes in Gait Using Fractal Scaling of Gait Variability in Conjunction with Gaussian Continuous Wavelet Transform." Thesis, Virginia Tech, 2019. http://hdl.handle.net/10919/87393.

Full text

Abstract:

Accelerometer data can be analyzed using a variety of methods which are effective in the clinical setting. Time-series analysis is used to analyze spatiotemporal variables in various populations. More recently, investigators have focused on gait complexity and the structure of spatiotemporal variations during walking and running. This study evaluated the use of time-series analyses to determine gait parameters during running. Subjects were college-age female soccer players. Accelerometer data were collected using GPS-embedded trunk-mounted accelerometers. Customized Matlab® programs were

APA, Harvard, Vancouver, ISO, and other styles

13

Zaylaa, Amira. "Analyse et extraction de paramètres de complexité de signaux biomédicaux." Thesis, Tours, 2014. http://www.theses.fr/2014TOUR3315/document.

Full text

Abstract:

L'analyse de séries temporelles biomédicales chaotiques tirées de systèmes dynamiques non-linéaires est toujours un challenge difficile à relever puisque dans certains cas bien spécifiques les techniques existantes basées sur les multi-fractales, les entropies et les graphes de récurrence échouent. Pour contourner les limitations des invariants précédents, de nouveaux descripteurs peuvent être proposés. Dans ce travail de recherche nos contributions ont porté à la fois sur l’amélioration d’indicateurs multifractaux (basés sur une fonction de structure) et entropiques (approchées) mais aussi su

APA, Harvard, Vancouver, ISO, and other styles

14

McGarry, Gregory John. "Model-based mammographic image analysis." Thesis, Queensland University of Technology, 2002.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

15

Li, Ming-ru, and 李明儒. "Shot Change Detection By Fractal Signature." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/58116866433996412970.

Full text

Abstract:

碩士<br>國立中山大學<br>資訊工程學系研究所<br>94<br>The developing of multimedia to make the video data to increase very quickly.So how to acquire the data that we want in a short time is a more important topic. Shot change detection is the first step for latter operation like classification and annotations. There are two type of shot change, one is abrupt shot change and the other one is gradual transition. Dissolve is the one of gradual transition that often seen but hard to detection, so in the paper would to propose a robust method to solve this problem. In this paper we use fractal orthonormal basis for

APA, Harvard, Vancouver, ISO, and other styles

16

Chang, Shen-Ming, and 張賢明. "Application of Fractal Coding to Edge Detection." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/11890497488893717094.

Full text

Abstract:

碩士<br>國立交通大學<br>電機與控制工程系<br>87<br>According to the previous researches, fractal coding applied to data compression achieves high compression ratio, which accordingly results in reduction in memory capacity and improvement on transmission efficiency. This research work does not aim at the data compression aspect. Instead the fractal coding approach is applied to edge detection. When applying fractal coding to image compression, a smaller mean square error（MSE）between the original and decompressed images is usually obtained in the smoothing region; a larger MSE is observed for the reg

APA, Harvard, Vancouver, ISO, and other styles

17

Chiu, Shun-Hsing, and 邱順興. "Change Detection from SAR Image by Fractal Dimension." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/12967481760598839654.

Full text

Abstract:

碩士<br>國立聯合大學<br>電子工程學系碩士班<br>95<br>Because that Synthetic Aperture Radar (SAR) is capable of acquiring data in all weather conditions and is not affected by cloud cover or different sunlight conditions, SAR is usually applied to a variety of change detections, such as coastal zone monitoring, oil-spills detection and disaster prevention etc. But it is very difficult to detect change in SAR image because of speckle noise. Speckle noise is a chaotic phenomenon because that the scattering signals within a resolution cell are summed up coherently. Therefore, SAR image can be modeled by a spatial

APA, Harvard, Vancouver, ISO, and other styles

18

Chin-PengLin and 林錦鵬. "Detection of Micro-calcifications in Mammograms Using Fractal Dimension." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/55399325827309552805.

Full text

Abstract:

碩士<br>國立成功大學<br>電腦與通信工程研究所<br>101<br>One of the significant early signs of breast cancer is the appearance of micro-calcification (MC) clusters. However, it is time-consuming and exhausting to diagnose mammograms manually due to fuzzy nature of MCs and poor contrast in images. Thus, computer aided diagnosis systems are brought to assist specialists in diagnosis as a second opinion. The MC detection scheme proposed in the thesis is composed of four stages. Firstly, detailed texture is acquired along with noise suppression. Secondly, fractal dimension and standard deviation are both applied t

APA, Harvard, Vancouver, ISO, and other styles

19

Parikh, Prachi. "Drowsiness detection while driving using fractal analysis and wavelet transform." 2007. http://hdl.rutgers.edu/1782.2/rucore10001600001.ETD.16757.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Demers, Matthew. "Fractal Imaging Theory and Applications beyond Compression." Thesis, 2012. http://hdl.handle.net/10214/3634.

Full text

Abstract:

The use of fractal-based methods in imaging was ﬁrst popularized with fractal image compression in the early 1990s. In this application, one seeks to approximate a given target image by the ﬁxed point of a contractive operator called the fractal transform. Typically, one uses Local Iterated Function Systems with Grey-Level Maps (LIFSM), where the involved functions map a parent (domain) block in an image to a smaller child (range) block and the grey-level maps adjust the shading of the shrunken block. The fractal transform is deﬁned by the collection of optimal parent-child pairings and pa

APA, Harvard, Vancouver, ISO, and other styles

21

Lin, Ping-Yi, and 林秉逸. "Higher-order-statistics-based fractal dimension algorithm for bowel sound signal detection." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/9z2dz4.

Full text

Abstract:

碩士<br>國立交通大學<br>影像與生醫光電研究所<br>102<br>Bowel sounds is an important physiological parameter of distinguishing the gastrointestinal motility dysfunction. In clinical, expert physicians use the stethoscope to listen to bowel sounds and evaluate gastrointestinal motility states of the subject. Auscultation of bowel sounds provides a noninvasive way for clinical diagnosis, but it is also easily affected by environmental noise. Therefore, detecting bowel sounds under noisy environment is very difficult. In this study, a novel higher-order-statistics (HOS)-based fractal dimension algorithm was propose

APA, Harvard, Vancouver, ISO, and other styles

22

Lai, Yun-Jeng, and 賴雲正. "Application of Fractal Geometry for the Disturbance Detection By Using Field Programmable Gate Array." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/27655745593022485156.

Full text

Abstract:

碩士<br>國立成功大學<br>電機工程學系碩博士班<br>91<br>Because of the fast development of high-tech industry, the amount of data generated either from digital device or analog devices has been increased significantly. Particularly, the data to be analyzed are often affected by the characteristics of faulted equipment or elements. In other words, the unexpected disturbances may largely downgrade the accuracy of the data analysis. Hence, an effective approach that can help distinguish different disturbances would be useful to forewarn the operators, increasing the reliability of the system operation. In this pap

APA, Harvard, Vancouver, ISO, and other styles

23

Wang, Yi-En, and 王以恩. "The Detection of multi-fractal structure In Foreign Exchange Rate Market By Using Detrended Fluctuation Analysis." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/47505770414295541941.

Full text

Abstract:

碩士<br>銘傳大學<br>財務金融學系碩士班<br>101<br>In the natural science， there are many ways for quantitative analysis in knowing the state of series. In the situation， Detrended fluctuation analysis， DFA， is one coming from fractal theory and is practical in the series of fractal and long memory. This tool is good at detect unstable series changing. We expect to provide the trace for system financial theory to introduce new models. The aim of the analysis is to understand the exchange rate by using Detrended fluctuation analysis， DFA， for analyzing the reality of the state in Taiwan. By observing the change

APA, Harvard, Vancouver, ISO, and other styles

24

Lin, Da-Shuenn, and 林大舜. "The Study of the Fractal Dimension on the Edge Detection and Land Use Classification of Remotely Sensed Images." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/52605430077541637411.

Full text

Abstract:

碩士<br>國立中央大學<br>太空科學研究所<br>84<br>The main purpose of this study is to investigate the application of the fractal dimension to remotely sensed images. Two applications are tested in this study:(1) edge detection and (2) land cover/ land use classification. Because the fractal surface on the image can be represented by the image texture, the fractal dimension in this study is calculated by the texture measurement. For edge detection application, since the location of the edge can be treated a

APA, Harvard, Vancouver, ISO, and other styles

25

Alozie, Chinenye. "Internal leakage diagnosis in valve controlled actuation systems and electrohydrostatic actuation systems." 2014. http://hdl.handle.net/1993/23583.

Full text

Abstract:

Diagnosis of faults associated with hydraulic actuators is essential to avoid accidents or loss of system functionality. This thesis focuses on internal leakage fault diagnosis in valve controlled hydraulic actuation systems (VCA) as well as electrohydrostatic actuation systems (EHA). For the VCA, the hydraulic actuator is driven in a closed loop mode to track a pseudorandom input signal whereas for the EHA, an actuator is driven in an open loop mode to track a sinusoidal input. Motivated by developing a method that does not rely on the model of the system or type of fault, signal processing t

APA, Harvard, Vancouver, ISO, and other styles

26

Lin, Chi Chine, and 林琪晴. "Sea Clutter Rejection and Target Detection Using Wavelets and Fractals." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/70184142170699650570.

Full text

Abstract:

碩士<br>國立海洋大學<br>航運技術研究所<br>84<br>Sea clutter severely interferes with the observation of marine radar or coast-based radar.Subsequently,it will affect the safety of ships in navigation and the vessel traffic surveillance.The detection of small target in the sea clutter is a problem to beresolved.Sea clutter has been considered as a kind of stochasticprocesses for several decades.Recently,in the light of chaoticdynamic systems and Fractional Brownian Motion (FBM),sea clutter is treated as a

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!