Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 29 for “"image fusion"”.
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Image fusion for a nighttime driving display
An investigation into image fusion for a nighttime driving display application was performed. Most of the image fusion techniques being investigated in this application were developed for other purposes. When comparing the images of a typical night driving scene to the images used in medical or …
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An optimization-based approach to image fusion using structural similarity
… structural similarity index measure Mean. Image fusion involves combining multiple images to preserve their most desirable characteristics. The objective is to create a single enhanced image that can be utilized for various applications, including human visual perception, object detection, …
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A system for surgical planning and guidance using image fusion and interventional MR
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, February 2000.
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Multi-modality image fusion by real-time tracking of volumetric brain deformation during Image Guided Neurosurgery
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2002.
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Methods for multi-spectral image fusion: identifying stable and repeatable information across the visible and infrared spectra
Fusion of images captured from different viewpoints is a well-known challenge in computer vision with many established approaches and applications; however, if the observations are captured by sensors also separated by wavelength, this challenge is compounded significantly. This dissertation …
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New contributions on image fusion and compression based on space-frecuency representations = Nuevas contribuciones en fusión y compresión de imágenes basadas en representaciones espacio-frecuenciales
… allow to achieve an approximation of the image based on the extraction of those salient features normally coincident with contours. This type of image representation based on multiscale contours traces new routes to solve image processing tasks, in particular in the areas of image …
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Super-resolution image reconstruction from low-resolution images
… the problem of obtaining high-resolution image from a set of one or more low-resolution images. The thesis focused on three building blocks of super-resolution algorithms i.e., image registration for super-resolution, image fusion for super-resolution and super-resolution image …
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Aumento della risoluzione spaziale per il sondaggio di temperatura e umidità da satellite geostazionario mediante radiometria ad onde millimetriche e submillimetriche
… approaches, Wiener filter, Super-Resolution and Image Fusion have been applied to some representative GOMAS frequency channels to enhance the resolution of antenna temperatures. The Wiener filter improved resolution of the largely oversampled images by a factor 1.5- 2.0 without introducing any …
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Information selection and fusion in vision systems
… microscopes, is technically challenging. While image and video compression help to manage the data volumes, they do not address the basic problem of information overflow. In this PhD we tackle the problem in a more drastic way. We select information of interest to a specific vision task, and …
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Improving the Solution of an Incomplete Problem in Computed Tomography
… to reconstruct a pixelated image of the interior of the object using mathematical algorithms. To successfully recover an unambiguous image of the scanned object, the number of measurements should be equal or higher than the number of the pixels (unknowns). This requires …
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Estimating and interpreting shoe sole wear for forensic investigation
… a new dataset of temporal shoemark images is presented for use in shoe wear experiments, captured over a period of five months. Using this data two computational solutions are designed; first in the spatial domain using SIFT, an approach previously proven in shoemark classification, …
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Crack identification through computer vision: from non-learning-based to learning-based methodologies, and from patch-level to pixel-level detections
… environmental changes. In recent decades, image-based automated crack detection methodologies have been developed and extensively applied by professionals and researchers. Nevertheless, a few issues and challenges existing in this type of methodology are yet to be systematically …
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Multiplexed photography : single-exposure capture of multiple camera settings
… system and associated algorithms to capture four images of a scene in a single exposure, each taken with a different aperture setting. Our system can be used with commercially available DSLR cameras and photographic lenses without modification to either. We demonstrate several applications of our …
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Leveraging Spectra to Improve the Resolution and Usability of Mid-Infrared Biomedical Microscopy: A Case Study in Bone Marrow Grading
… resolution of IR imaging systems by designing an image-fusion method based on the curvelet transform. Finally, I demonstrate the clinical viability of IR imaging for bone marrow grading. Through this research, I propose a roadmap and a set of requirements for efficient translation of infrared …
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Generation of high resolution tomographic images for NDT applications
… for the generation of quantitative ultrasonic images in non-destructive testing have generally involved a substantial cost in terms of data storage and computational time, and have thus found limited application. Preference has therefore been given to the more straightforward imaging methods, …
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A novel automated approach of multi-modality retinal image registration and fusion
Biomedical image registration and fusion are usually scene dependent, and require intensive computational effort. A novel automated approach of feature-based control point detection and area-based registration and fusion of retinal images has been successfully designed and developed. The new …
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Deformation correction in ultrasound imaging in an elastography framework
… of many techniques related to ultrasound image registration, including multimodal image fusion, freehand three-dimensional ultrasound, and quantitative measurement of tissue geometry. In this thesis, a novel trajectory-based method to correct tissue deformation in ultrasound B-mode imaging …
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Development of a Remote Sensing-Based Agriculture Monitoring Drought Index and Its Application Over Semi-Arid Region
… Thus, we opted to develop a spatio-temporal image-fusion model (STI-FM) to generate synthetic Landsat-8 like data with 30 m spatial and 8 day temporal resolutions upon combining regular Landsat-8 (having 30 m spatial with 16 day temporal resolutions) with moderate-resolution imaging …
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