Dissertations / Theses on the topic 'Colour field'
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Frisk, Mattias. "En Studie i Rött : Hur beskrivs, uppfattas och kopplas färg samman med innehåll i Mark Rothkos abstrakta målningar?" Thesis, Linköping University, Department of Culture and Communication, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-16609.
Full textUndersökning av färgen i förhållande till innehåll i Mark Rothkos abstrakta verk. Studien innefattar en undersökning i hur man skriver om färg i anslutning till Rothkos abstrakta målningars innehåll och huruvida färg kan avgöra betydelser.
A study about color in relationship to content in Mark Rothko’s abstract paintings. It includes a research in how people write about color when discussing Mark Rothko´s paintings and how that is related to content. It also looks at color in relationship to meaning.
Cheyne, Jack Mackenzie. "Colour superconductivity and steps beyond the mean field approximation." Thesis, University of Glasgow, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.412939.
Full textKleeman, R. "Generalized quantization and colour algebras /." Title page, table of contents and abstract only, 1985. http://web4.library.adelaide.edu.au/theses/09PH/09phk635.pdf.
Full textHarker, Genevra E. L. "A comparison between optical properties measured in the field and the laboratory, and the development of an optical model." Thesis, Bangor University, 1997. https://research.bangor.ac.uk/portal/en/theses/a-comparison-between-optical-properties-measured-in-the-field-and-the-laboratory-and-the-development-of-an-optical-model(73ac3679-0a9e-4fed-af24-560041daca25).html.
Full textPhillips, Michael James. "A random matrix model for two-colour QCD at non-zero quark density." Thesis, Brunel University, 2011. http://bura.brunel.ac.uk/handle/2438/5084.
Full textAntonsson, Sandra. "A different Africa : Spatial information design for a safer refugee settlement." Thesis, Mälardalens högskola, Akademin för innovation, design och teknik, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-24176.
Full textMcColm, Donna. "Opticality and the Work of Morris Louis (1912-1962)." Thesis, The University of Sydney, 2007. http://hdl.handle.net/2123/2180.
Full textMcColm, Donna. "Opticality and the Work of Morris Louis (1912-1962)." University of Sydney, 2007. http://hdl.handle.net/2123/2180.
Full textThis thesis investigates the work of Morris Louis (1912-1962) in relation to ‘opticality’, a theory developed by the prominent American art critic Clement Greenberg. Between the late 1930s and 1950s, Greenberg developed a comprehensive argument concerning the opticality, or the optical illusion, of abstract painting. This theory influenced common approaches towards Abstract Expressionist painting during the 1940s and 1950s, culminating in Greenberg’s writing on ‘Colourfield’ painting in major texts of the 1960s such as ‘Louis and Noland’ (1960). Through research into the development of Morris Louis’ technique, including several of his major series as well as lesser known works, this thesis argues that our understanding of Louis’ work has been constricted by a narrow perception of the opticality of his 'stain' paintings, and explores Louis' technique in light of alternative interpretations of his work.
Noordhuis-Fairfax, Sarina. "Field | Guide: John Berger and the diagrammatic exploration of place." Phd thesis, Canberra, ACT : The Australian National University, 2018. http://hdl.handle.net/1885/154278.
Full textBuchriegler, Josef [Verfasser], Jürgen [Gutachter] Faßbender, and Matjaz [Gutachter] Kavcic. "Full-field PIXE imaging using a Colour X-ray Camera : Advantages and drawbacks in elemental mapping of large areas with a poly-capillary optics / Josef Buchriegler ; Gutachter: Jürgen Faßbender, Matjaz Kavcic." Dresden : Technische Universität Dresden, 2021. http://d-nb.info/1235346390/34.
Full textRamnath, Andrecia. "Exclusive J/Ψ Vector-Meson production in high-energy nuclear collisions: a cross-section determinaton in the Colour Glass Condensate effective field theory and a feasibility study using the STARlight Monte Carlo event generator." Master's thesis, University of Cape Town, 2014. http://hdl.handle.net/11427/9214.
Full textThe cross-section calculation for exclusive J /Ψ vector-meson production in ultra-peripheral heavy ion collisions is approached in two ways. First, the setup for a theoretical calculation is done in the context of the Colour Glass Condensate effective field theory. Rapidity-averaged n-point correlators are used to describe the strong interaction part of this process. The JIMWLK equation can be used to predict the energy evolution of a correlator. In order to facilitate practical calculations, an approximation scheme must be employed. The Gaussian Truncation is one such method, which approximates correlators in terms of new 2-point functions. This work takes the first step beyond this truncation scheme by considering higher-order n-point functions in the approximation. An expression for the cross-section is written, which takes parametrised 2- and 4-point correlators as input. This expression can be used as the basis for a full cross-section calculation. The second part of the thesis is a feasibility study using Monte Carlo simulations done by the STARlight event generator. A prediction is made for how many exclusive J /Ψ vector-mesons are expected to be detected by ATLAS in a data set corresponding to 160 μb−1 total integrated luminosity. It is found that the muon reconstruction efficiencies for low pT muons is too poor in ATLAS to do this analysis effectively. On the order of 150 candidate events are expected from all the Pb-Pb collision data collected in 2011. The feasibility study acts as a preliminary investigation for a full cross-section measurement using ATLAS collision data. Once this is completed, it can be compared with the theoretical prediction for the cross-section.
Åkerlund, Josefine. "Experiences of Social Inequalities Related to Skin Colour Enhaced by Fashion Magazines in South Africa : A case study on how women in South Africa identify themselves in relation to the representation of race in South African fashion magazines." Thesis, Södertörns högskola, Institutionen för kultur och lärande, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:sh:diva-19485.
Full textHERAT, ATHULA RAVINDRA. "CURVATURE DEPENDENCE OF CLASSICAL SOLUTIONS EXTENDED TO HIGHER DIMENSIONS." University of Cincinnati / OhioLINK, 2003. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1060257141.
Full textJakariya, Md. "Arsenic in tubewell water of Bangladesh and approaches for sustainable mitigation." Doctoral thesis, Stockholm, : Byggvetenskap, Kungliga Tekniska högskolan, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4372.
Full textCheng, Hui-Chuan. "Vertical Field Switching Blue Phase Liquid Crystals for Field Sequential Color Displays." Doctoral diss., University of Central Florida, 2012. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/5161.
Full textPh.D.
Doctorate
Optics and Photonics
Optics and Photonics
Optics
Worley, Gary M. "The Effects of Highlight Color on Immediate Recall in Subjects of Different Cognitive Styles." Diss., Virginia Tech, 1999. http://hdl.handle.net/10919/26406.
Full textPh. D.
Rudolph, T. "Dressing an atom in a field of many colours." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape15/PQDD_0028/NQ33548.pdf.
Full textUrban, Katherine. "COLOR PSYCHOTHERAPY AND PAINTING IN THE SATELLITE-EXPANDED FIELD." Master's thesis, University of Central Florida, 2009. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/2720.
Full textM.F.A.
Department of Art
Arts and Humanities
Studio Art and the Computer MFA
Pham, Linh My. "Magnetic Field Sensing with Nitrogen-Vacancy Color Centers in Diamond." Thesis, Harvard University, 2013. http://dissertations.umi.com/gsas.harvard:10993.
Full textEngineering and Applied Sciences
Highnote, Susan M. "Color discrimination of small targets /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC IP addresses, 2003. http://wwwlib.umi.com/cr/ucsd/fullcit?p3089477.
Full textPatil, Sreenivas. "Reconfigurable hardware for color space conversion /." Online version of thesis, 2008. http://hdl.handle.net/1850/7756.
Full textKitazawa, Masakiyo. "Fluctuations of diquark-pair field and precursory phenomena in color superconductivity." 京都大学 (Kyoto University), 2005. http://hdl.handle.net/2433/145077.
Full text0048
新制・課程博士
博士(理学)
甲第11309号
理博第2867号
新制||理||1429(附属図書館)
22952
UT51-2005-D60
京都大学大学院理学研究科物理学・宇宙物理学専攻
(主査)教授 國廣 悌二, 教授 中村 卓史, 教授 堀内 昶
学位規則第4条第1項該当
Cantale, Nicolas, Pascale Jablonka, Frédéric Courbin, Gregory Rudnick, Dennis Zaritsky, Georges Meylan, Vandana Desai, et al. "Disc colours in field and cluster spiral galaxies at 0.5 ≲ z ≲ 0.8." EDP SCIENCES S A, 2016. http://hdl.handle.net/10150/614983.
Full textIslam, Mofakharul University of Ballarat. "Unsupervised Color Image Segmentation Using Markov Random Fields Model." University of Ballarat, 2008. http://archimedes.ballarat.edu.au:8080/vital/access/HandleResolver/1959.17/12827.
Full textMaster of Computing
Islam, Mofakharul. "Unsupervised color image segmentation using Markov Random Fields Model." Thesis, University of Ballarat, 2008. http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/53709.
Full textMaster of Computing
Islam, Mofakharul. "Unsupervised color image segmentation using Markov Random Fields Model." University of Ballarat, 2008. http://archimedes.ballarat.edu.au:8080/vital/access/HandleResolver/1959.17/15694.
Full textMaster of Computing
Zhang, Fu-Li. "An experimental and theoretical study of new phosphors for full color field emission displays." Diss., Georgia Institute of Technology, 1999. http://hdl.handle.net/1853/31003.
Full textModigh, Nicole. "True colours of Nepal : A minor field study on the Nepalease dyeing industry." Thesis, Mittuniversitetet, Avdelningen för ekoteknik och hållbart byggande, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-41974.
Full text2018-06-08
Li, Hui. "Study on molecular photoionization in femtosecond laser field." Thesis, Kansas State University, 2013. http://hdl.handle.net/2097/15913.
Full textDepartment of Physics
Matthias Kling
This thesis consists of two major parts. The first part concerns studies of the orientation dependence of the ionization of diatomic molecules in intense, femtosecond two-color laser fields. The second part is about studies on the ionization mechanisms of the C[subscript]6[subscript]0 molecule in femtosecond near-infrared and ultraviolet laser fields. In the first part, experimental and theoretical results on the asymmetric ion emission of the heteronuclear molecules CO and NO in two-color laser fields are discussed. The two-color fields, which can be tailored by a relative phase, are used to ionize and dissociate CO and NO molecules, both of which are molecules with small polarizabilities. The resulting C[superscript]+, C[superscript]2[superscript]+, N[superscript]+ and O[superscript]+ ions are detected by a velocity map imaging (VMI) setup. The photoelectrons from above-threshold ionization (ATI) of Xe are studied under such a two-color field to assign the phase. For both CO and NO we find that enhanced ionization occurs when the molecule is oriented with the electric field pointing from the C or N atom toward the O atom. This is in agreement with the molecular orbital Ammosov-Delone-Krainov (MO-ADK) theory and the Stark-corrected strong-field-approximation (SFA) calculations. The second part is devoted to the investigation of the ionization mechanism of neutral C[subscript]6[subscript]0 molecules with 30 fs laser pulses at about 800 nm and with 50 fs pulses at about 400 nm. The angular distributions of photoelectrons are measured utilizing VMI. Measurements under different intensities are carried out for the two wavelengths. In our work, thermal electron emission is highly suppressed by the use of short pulses. For near-infrared excitation, photoelectron angular distributions (PADs) that contain six lobes are observed for low energy electrons. This behavior is different from studies for longer pulses of about 120 fs [1]. Further analysis indicates that the PADs might originate from single photon ionization of a super atomic molecular orbital (SAMO), however, a detailed assignment requires further theoretical work. The PADs for the ultraviolet excitation show very similar structures to earlier results [1]. For the near-infrared excitation, we have carried out studies as a function of the chirp of the pulses and find effects on photoelectron spectra and on PADs, which are tentatively explained by sequential multiphoton ionization via “doorway” states.
Werner, Felix. "Vision-based topological mapping and localisation." Thesis, Queensland University of Technology, 2010. https://eprints.qut.edu.au/31815/1/Felix_Werner_Thesis.pdf.
Full textvon, Mackensen Jana. "Thinking Friction : Uncover the true colours of Berlin." Thesis, KTH, Stadsbyggnad, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-100151.
Full textBrown, Samuel David James. "Molecular systematics and colour variation of Carpophilus species (Coleoptera: Nitidulidae) of the South Pacific." Diss., Lincoln University, 2009. http://hdl.handle.net/10182/1430.
Full textBromberger, Bianca. "The experiential Sublime perception, conception, and emotion in Mark Rothko's classic color-field paintings /." Diss., Connect to the thesis, 2008. http://hdl.handle.net/10066/1437.
Full textLi, Meng. "On study of lip segmentation in color space." HKBU Institutional Repository, 2014. https://repository.hkbu.edu.hk/etd_oa/42.
Full textSchultz, Ruth. "Being of shape : being--The ground through which all things are /." Online version of thesis, 1989. http://hdl.handle.net/1850/11082.
Full textCao, Yu. "Effects of Field Dependent-Independent Cognitive Styles and Cueing Strategies on Students' Recall and Comprehension." Diss., Virginia Tech, 2006. http://hdl.handle.net/10919/29017.
Full textPh. D.
Gomes, Carolina Feistauer. "Aplicação da tecnologia de aquecimento ôhmico em diferentes etapas do processamento da abóbora híbrida tetsukabuto." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2017. http://hdl.handle.net/10183/171397.
Full textPumpkins stand out as vegetable of great nutritional and technological potential. In order to increase the variability of vegetal products available on the market, pumpkins must be subjected to thermal process which can prolong its shelf life, and imposing also the necessary modifications for its commercialization. In this context, the main objective of the present research was to evaluate the application of ohmic heating technology in different stages carried out during the processing of the hybrid pumpkin Tetsukabuto. In the first part of the work, the objective was to investigate the effects of conventional and ohmic blanching (performed at 80 ºC during 4 minutes and 163 V in the ohmic heating) on the inactivation of peroxidase enzyme and on the color of the pumpkins. In order to adjust the data related to enzyme inactivation, different kinetic models were evaluated, being the Weibull distribution model chosen to describe the inactivation kinetics of peroxidase. With this study, it was possible to observe that the electric field blanching significantly affected the kinetic parameters of enzymatic inactivation, turning this process faster. The application of both technologies did not cause significant modifications of pumpkins color parameters. In the second part of the work, pumpkin cream was pasteurized via conventional and ohmic thermal treatment carried out at 90 ºC for 2 hours and 47 V in the ohmic heating. The objective of this stage was to evaluate the effects of both technologies on the color variation, the degradation of total carotenoids and the changes in rheological parameters of the cream. It was possible to observe that the color of the cream was slightly affected during the application of the processes, becoming slightly darker and losing its yellowish tone. In addition, it was verified loss of total carotenoid content in the cream. Furthermore, no additional non-thermal effect of the electric field on the color and on carotenoids present in the product was observed. The pumpkin cream presented a shear thinning behavior and was satisfactorily adjusted to the Power Law Model. It was observed a significant increase in the consistency index of the cream after the application of both treatments, and both technologies did not present significative differences between them. The overall results obtained in the present work suggests that ohmic heating is a promising technology to be applied in different operations involved during food processing.
Block, Katherine M. "Veils: Truth in Translation." Digital Commons @ East Tennessee State University, 2015. https://dc.etsu.edu/etd/2540.
Full textMi, Yonghao [Verfasser], and Thomas [Akademischer Betreuer] Pfeifer. "Strong-field ionization of atoms and molecules with two-color laser pulses / Yonghao Mi ; Betreuer: Thomas Pfeifer." Heidelberg : Universitätsbibliothek Heidelberg, 2017. http://d-nb.info/1180986636/34.
Full textGingborn, Nicklas, and Hanna Wåhlén. "Investigating sustainable mitigation alternatives for groundwater in Matlab Upazila, Bangladesh. : A Minor Field Study." Thesis, KTH, Miljögeokemi och ekoteknik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-99340.
Full textKleeman, R. (Richard). "Generalized quantization and colour algebras / by R. Kleeman." 1985. http://hdl.handle.net/2440/20597.
Full textvii, 147 leaves ; 30 cm.
Title page, contents and abstract only. The complete thesis in print form is available from the University Library.
Thesis (Ph.D.)--University of Adelaide, Dept. of Mathematical Physics, 1986
Buchriegler, Josef. "Full-field PIXE imaging using a Colour X-ray Camera: Advantages and drawbacks in elemental mapping of large areas with a poly-capillary optics." 2020. https://tud.qucosa.de/id/qucosa%3A75000.
Full textDie neuartige Kombination eines Vollfeld-Röntgendetektors und partikelinduzierter Röntgenemission (PIXE: 'Proton-Induced X-ray Emission') als etablierte Analysemethode wurde am Helmholtz-Zentrum Dresden-Rossendorf (HZDR) aufgebaut und erforscht. Die sogenannte Röntgenfarbkamera (CXC: 'Colour X-ray Camera') basiert auf Ladungskopplung mit p-n-Übergängen (pnCCD: 'pn-junction Charge-Coupled Device') und ist zwecks Abbildung mit einer Polykapillaroptik (PCO: 'Poly-Capillary Optics') gekoppelt. Dieser erstmalige gemeinsame Einsatz von PIXE, als Analysemethode mit niedrigem Untergrund, und dem Ansatz der Vollfeldabbildung eignet sich, um die Lücke zwischen schneller und empfindlicher Analyse großer Probenoberflächen zu schließen. Die als full-field PIXE (FF-PIXE) bezeichnete Anlage ist für ortsaufgelöste und quantifizierbare Untersuchungen großer geologischer Proben konzipiert und soll insbesondere deren Spurenelementverteilung analysieren. Die charakteristische Röntgenstrahlung wird mit 3 MeV-Protonen, die von einem 6 MV-Tandembeschleuniger bereit gestellt werden, induziert. Die ortsaufgelöste Abbildung dieser induzierten Strahlung wird mittels hunderttausender Kapillaren (je ca. 20 µm Innendurchmesser) realisiert. Der nachgelagerte aus 264×264 Pixeln bestehende pnCCD-Chip ist in der Lage, Röntgenphotonen im Energiebereich von 1 bis 20 keV aus einem 12×12 mm² großen Sichtfeld einzeln zu erfassen. Im mittleren Energiebereich wurde für die Kamera eine native Ortsauflösung von 76 µm ermittelt, die im Wesentlichen durch die Pixeldimensionen (48×48 µm²) bestimmt ist. Umfangreiche experimentelle Tests, die das Konzept der Probenausleuchtung, der Röntgenübertragung durch die PCO und die Abbildungseigenschaften der CXC untersuchten, führten zu wesentlichen Erkenntnissen, die die Beurteilung des neuen Abbildungskonzepts für Röntgenfluoreszenz ermöglichen. Während die Variabilität der Anregungsintensität nachweislich besser als 10% ist und die homogene Empfindlichkeit des Detektors verifiziert wurde, ergaben sich energieabhängige Beeinträchtigungen der Bildübertragung durch die PCO. Vergleichsmessungen mit bildgebenden Systemen, die Photonen und Elektronen zur Anregung verwenden, konnten bestätigen, dass sowohl der Vollfeldansatz, als auch PIXE als Methode der Wahl zur Erreichung der ursprünglichen Ziele geeignet sind. Darüber hinaus wurden verschiedene Techniken zur Bildverbesserung erfolgreich getestet, die durch die PCO verursachte Abbildungsfehler korrigieren. Abgesehen von der Unterdrückung hexagonaler Muster und der Korrektur radialer Ungleichmäßigkeiten konnte das laterale Auflösungsvermögen des Systems bei Verwendung der 1:1-Optik auf 63 µm verbessert werden. Die Untersuchungen haben ergeben, dass die komplexen Übertragungseigenschaften der PCO derzeit eine der größten Hürden sind, um quantitative Ergebnisse zu erzielen. Dennoch wurde eine Reihe von Parametern (z.B.Auslesegeschwindigkeit) und Abhängigkeiten (z.B. Ortsauflösung vs. Elementempfindlichkeit) identifiziert und untersucht, deren Verständis dazu beitragen wird, auf dem Weg zu quantitativen Ergebnissen, voran zu kommen.
Ribeiro, Ana Francisca Cerdeira Rodrigues 1981. "Venho das estrelas : o impresentificável no azul." Master's thesis, 2017. http://hdl.handle.net/10451/31991.
Full textCheng, Yi-Ru, and 鄭宜如. "Two-Color-Field Sequential Method for Color Filterless LCDs." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/29402290848727478033.
Full text國立交通大學
顯示科技研究所
97
A field sequential color liquid crystal display (FSC LCD) might become a next-generation display because of enhanced energy efficiency and respond to demand for Green techniques. The conventional FSC LCD flashes red, green and blue field images at 180 Hz field rate to generate a full color image so the color sequence must be achieved by using fast LC modes, such as the optically compensated bend (OCB) mode. However, the OCB mode have not commercialized for TV application yet. In the thesis, a novel color-filter free displaying method, two-color-field sequential method, was proposed for color filterless LCDs. The least field number alleviated the demand for fast-response LC modes for sequential-type LCDs, and produced full color images with acceptable color reproduction accuracy, average ΔE00ave<3. Furthermore, less chrominance difference between the two fields was beneficial in suppressing color break-up.
Chang, Ping Ya, and 張炳堯. "Classifing Color Images with Markov Random Field." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/44309652666022688382.
Full text"Two-flavor Color Superconductivity in Magnetic Field." Doctoral diss., 2012. http://hdl.handle.net/2286/R.I.14593.
Full textDissertation/Thesis
Ph.D. Physics 2012
Yan, Shu-Ping, and 閻淑萍. "A visual model of color break-up for design field-sequential color displays." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/15497284570025312974.
Full text國立交通大學
電機學院光電顯示科技產業專班
95
Field-sequential color (FSC) formation mechanism, which displays multi-primary color fields in temporal sequence to form a full-color frame, is an effective way to generate full color images. Color break-up (CBU), however, has appeared intrinsically in FSC-type displays to degrade visual quality, and thus been investigated in the past decades. In this study, we first purposed “Color Break-Up Angle (CBUA)” to model the effect of entire image with CBU. Then, a psychophysical experiment was performed by using a convenient apparatus to derive the indistinguishable CBUA. Finally, the CBU suppression can be designed and verified for various sizes of FSC displays to improve image quality.
Chen, Li-Ying, and 陳俐穎. "Color Image Segmentation Based on Markov Random Field." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/87059377777327216908.
Full text國立成功大學
統計學系碩博士班
91
Image Segmentation is an important field in computer vision and image processing. The target of image segmentation is to define regions that represent the interesting objects or meaningful parts of objects. Color image can be regarded as the three-dimensional data. Clustering analysis is commonly used for analyzing multivariate data and is adapted to color image as a region-based segmentation method. It divides the set of processed patterns into clusters based on the similarity of subset pixels. Each cluster contains patterns representing objects that are similar in the selected descriptions or criteria. There are two key terms to be defined before clustering: the number of clusters and the cluster centroids. Since we don’t have any prior knowledge of the image, we propose two rules to compute the two terms automatically. After the clustering analysis, some noise or edges may present in locations where there is no boundary, and no edge presents where a real boundary exists. Markov Random Fields (MRF) image model is adopted in processing the degraded image and correct the results from clustering analysis. In MRF, we do not use the intensity value of each color channel directly. Instead, we incorporate the value of revised Sobel operation and the variance within each color space into the energy computation. Therefore the higher value represents high probability to be defined as an edge pixel. The experimental results are compared under different color space. We defined a criterion called the “consistent detection rate” to evaluate the segmentation results. Four color spaces, RGB, YIQ, CIELUV, and OHTA, are adopted in this study. From the experiments, we conclude that the RGB color space performs well in most of the tested images. CIELUV space is good for the images having significant changes in color or with many objects. It is not recommended to use it in regular images. The proposed method can achieve appropriate segmentation in RGB color space in about six to ten minutes for medium size color images.
Chang, Chi-Wen, and 張綺文. "Stencil-LPD Method for High Quality Color Filter-Less 120Hz Field-Sequential-Color Displays." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/21233589817381520625.
Full text國立交通大學
照明與能源光電研究所
100
Since a field-sequential-color LCD (FSC-LCD) does not require color filters, it has potential to be the next-generation eco-display. The conventional FSC-LCD sequentially flashes red, green, and blue field images at 180Hz field rate to form a full color image by the integration on the retina. Considering the currently used LC modes, a two-field method driving at a field rate of 120Hz has been the mainstream to develop. However, only two fields to display full color images formed by the three primaries, it is lack of a degree of freedom resulting image distortion. Thus, in the previous solutions, a specific color filter was applied, known as the 2F2CF method proposed by Phillips. By doing so, it can reproduce exactly the same image with the original one but still needs color filters. The other method, two-color-field proposed by NCTU, is to divide the blue information, which is the least sensitive color to human eyes, into two parts and to combine them with red and green information individually. This method does not require color filters but cause color distortion. In this thesis, a novel two-field display method, Stencil-LPD, was proposed without color filters. The Stencil-LPD method can provide proper backlight colors according to the image content that can decrease the color difference caused by the lack of degree of freedom. Compared to the two-color-field method, the proposed method reduced the color distortion by 53%. Besides, Stencil-LPD method provided less but sufficient saturation colors as backlight signals, the chrominance difference was lowered that diminishes the relative CBU value to 64% while it is 89% in the two-color-field method.
Wu, Chien-Liang, and 吳建良. "Demonstration of a Mobile-Sized Field Sequential Color LCD for Color Break-up Suppression." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/28122048380214850544.
Full text國立交通大學
光電工程系所
96
The Field Sequential Color (FSC) LCD displays red, green and blue fields sequentially to mix a full color image by temporal color mixing method. It has some advantages, such as high transmittance, high resolution, high color saturation and low power consumption. However, color break-up (CBU) is a serious issue to reduce image quality. We proposed two methods for reducing CBU phenomenon. First one is RGBWmin, which can reduce static CBU by reducing the intensities of R, G, and B fields. The other one is Five Color Field Arrangement with Wmin (5-CFA with Wmin), which combines RGBWmin and color field arrangement to suppress dynamic and static CBU simultaneously. These two methods were successfully implemented in a 5.6-inch Optically Compensated Bend (OCB) mode FSC-LCD. Finally, we used the 5.6-inch FSC-LCD and a high speed camera to experiment for static and dynamic CBU. The experimental results reveal that static CBU were reduced by inserting a Wmin field. Furthermore, dynamic CBU were eliminated by using 5-CFA with Wmin method.