Dissertations / Theses on the topic 'Object recognition from optical images'
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Illing, Diane Patricia. "Orientation and recognition of both noisy and partially occluded 3-D objects from single 2-D images." Thesis, University of South Wales, 1990. https://pure.southwales.ac.uk/en/studentthesis/orientation-and-recognition-of-both-noisy-and-partially-occluded-3d-objects-from-single-2d-images(c849d6e3-24e4-4462-9afb-c608120a4019).html.
Full textIzciler, Fatih. "3d Object Recognition From Range Images." Master's thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12614915/index.pdf.
Full textcategories.Baseline and proposed algorithms are implemented on a database in which range scans of real objects with imperfections are queries while generic 3D objects from various different categories are target dataset.
Hong, Tao. "Object recognition with features from complex wavelets." Thesis, University of Cambridge, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.610239.
Full textGadsby, David. "Object recognition for threat detection from 2D X-ray images." Thesis, Manchester Metropolitan University, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.493851.
Full textVillalobos, Leda. "Three dimensional primitive CAD-based object recognition from range images." Case Western Reserve University School of Graduate Studies / OhioLINK, 1994. http://rave.ohiolink.edu/etdc/view?acc_num=case1057759966.
Full textМалишевська, Катерина Миколаївна. "Інтелектуальна система для розпізнавання об'єктів на оптичних зображеннях з використанням каскадних нейронних мереж." Doctoral thesis, Київ, 2015. https://ela.kpi.ua/handle/123456789/14391.
Full textSchlecht, Joseph. "Learning 3-D Models of Object Structure from Images." Diss., The University of Arizona, 2010. http://hdl.handle.net/10150/194661.
Full textZhang, Shujun. "Model-based 3D object perception from single monochromatic images of unknown environments." Thesis, University of Reading, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.315501.
Full textZiqing, Li S. "Towards 3D vision from range images : an optimisation framework and parallel distributed networks." Thesis, University of Surrey, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.291880.
Full textKanaparthi, Pradeep Kumar. "Detection and Recognition of U.S. Speed Signs from Grayscale Images for Intelligent Vehicles." University of Toledo / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1352934398.
Full textHE, LEI. "A COMPARISON OF DEFORMABLE CONTOUR METHODS AND MODEL BASED APPROACH USING SKELETON FOR SHAPE RECOVERY FROM IMAGES." University of Cincinnati / OhioLINK, 2003. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1059746287.
Full text"Parameter optimization and learning for 3D object reconstruction from line drawings." 2010. http://library.cuhk.edu.hk/record=b5894303.
Full textThesis (M.Phil.)--Chinese University of Hong Kong, 2010.
Includes bibliographical references (p. 61).
Abstracts in English and Chinese.
Chapter 1 --- Introduction --- p.1
Chapter 1.1 --- 3D Reconstruction from 2D Line Drawings and its Applications --- p.1
Chapter 1.2 --- Algorithmic Development of 3D Reconstruction from 2D Line Drawings --- p.3
Chapter 1.2.1 --- Line Labeling and Realization Problem --- p.4
Chapter 1.2.2 --- 3D Reconstruction from Multiple Line Drawings --- p.5
Chapter 1.2.3 --- 3D Reconstruction from a Single Line Drawing --- p.6
Chapter 1.3 --- Research Problems and Our Contributions --- p.12
Chapter 2 --- Adaptive Parameter Setting --- p.15
Chapter 2.1 --- Regularities in Optimization-Based 3D Reconstruction --- p.15
Chapter 2.1.1 --- Face Planarity --- p.18
Chapter 2.1.2 --- Line Parallelism --- p.19
Chapter 2.1.3 --- Line Verticality --- p.19
Chapter 2.1.4 --- Isometry --- p.19
Chapter 2.1.5 --- Corner Orthogonality --- p.20
Chapter 2.1.6 --- Skewed Facial Orthogonality --- p.21
Chapter 2.1.7 --- Skewed Facial Symmetry --- p.22
Chapter 2.1.8 --- Line Orthogonality --- p.24
Chapter 2.1.9 --- Minimum Standard Deviation of Angles --- p.24
Chapter 2.1.10 --- Face Perpendicularity --- p.24
Chapter 2.1.11 --- Line Collinearity --- p.25
Chapter 2.1.12 --- Whole Symmetry --- p.25
Chapter 2.2 --- Adaptive Parameter Setting in the Objective Function --- p.26
Chapter 2.2.1 --- Hill-Climbing Optimization Technique --- p.28
Chapter 2.2.2 --- Adaptive Weight Setting and its Explanations --- p.29
Chapter 3 --- Parameter Learning --- p.33
Chapter 3.1 --- Construction of A Large 3D Object Database --- p.33
Chapter 3.2 --- Training Dataset Generation --- p.34
Chapter 3.3 --- Parameter Learning Framework --- p.37
Chapter 3.3.1 --- Evolutionary Algorithms --- p.38
Chapter 3.3.2 --- Reconstruction Error Calculation --- p.39
Chapter 3.3.3 --- Parameter Learning Algorithm --- p.41
Chapter 4 --- Experimental Results --- p.45
Chapter 4.1 --- Adaptive Parameter Setting --- p.45
Chapter 4.1.1 --- Use Manually-Set Weights --- p.45
Chapter 4.1.2 --- Learn the Best Weights with Different Strategies --- p.48
Chapter 4.2 --- Evolutionary-Algorithm-Based Parameter Learning --- p.49
Chapter 5 --- Conclusions and Future Work --- p.53
Bibliography --- p.55
師樂善. "A Study on Underwater Object Recognition--Application of Optical Images and Acoustic Range Data." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/50934098777639864823.
Full text國立臺灣大學
造船及海洋工程學研究所
84
The objective of this thesis is to set up a vision model for underwater vehicles; this is, to establish a recognition model for underwater objects by means of optic images and range images which are obtained by the optic image equipment--a video camera and light sources and the simulated acoustic distance measurement equipment--a scanning SONAR in underwater vehicles. Under water, light, absorbed and scattered, reduces its power and contrast; therefore, the viewing range and the quality of underwater images also decline. In this condition, the image contrast can be improved by means of the geometric position of the light source and the camera. If a perfect 3-D range image can be gained, it is possible to calculate the geometric position of this 3-D object and to recognize this object. On the other hand, acoustic range images are obtained through pulse-echo time of flight, which are gained through the acoustic time of flight in media. Acoustic is likely to be affected by some factors such as the quality of the reflection surface; consequently, range data are the image resulting from strong reflection signals. Therefore, the emphasis of this thesis is to utilize both optic images and range images as the vision model for automatic underwater vehicles(AUV). This thesis has finished common optic image processing, edge-detecting, range image simulation, range image coordinate transformation, given object recognition model. The final stage is to utilize Hough transform to obtain the edge characteristics, and then to describe the distinctive features so as to establish recognition rules. The last step is to take advantage of expert system as an assistant tool to recognize the given underwater objects.
Li, Patrick. ""Flobject" Analysis: Learning about Static Images from Motion." Thesis, 2011. http://hdl.handle.net/1807/31310.
Full textPillay, Maldean. "Gabor filter parameter optimization for multi-textured images : a case study on water body extraction from satellite imagery." Thesis, 2012. http://hdl.handle.net/10413/11070.
Full textThesis (M.Sc.)-University of KwaZulu-Natal, Durban, 2012.