Browsing by Keywords "Segmentation"
Now showing items 1-18 of 18
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Adaptive reconstruction for vessel preservation in unenhanced MR angiography
(IEEE, 2016)The image quality of unenhanced magnetic resonance angiography, which images blood vessels without contrast agents, is limited by constraints related to scan time. To address this problem, techniques that undersample ... -
Automatic detection of compound structures by joint selection of region groups from a hierarchical segmentation
(Institute of Electrical and Electronics Engineers, 2016)A challenging problem in remote sensing image analysis is the detection of heterogeneous compound structures such as different types of residential, industrial, and agricultural areas that are composed of spatial arrangements ... -
Building detection using directional spatial constraints
(IEEE, 2010)We propose an algorithm for automatic detection of buildings with complex shapes and roof structures in very high spatial resolution remotely sensed images. First, an initial oversegmentation is obtained. Then, candidate ... -
Consumer behavior analysis and marketing communications strategy development: the case of Tuborg
(Bilkent University, 1995)Efes Pilsen and Tuborg have enjoyed an oligopolistic market stiiicture m the Turkish Beer Industry for decades. This has caused the companies to adopt a sales and product orientation and exert little effort on marketing. ... -
Cross-document word matching for segmentation and retrieval of Ottoman divans
(Springer U K, 2016)Motivated by the need for the automatic indexing and analysis of huge number of documents in Ottoman divan poetry, and for discovering new knowledge to preserve and make alive this heritage, in this study we propose a novel ... -
Do university students really need to be taught by the best instructors to learn?
(Cogent OA, 2017)The present study sought to contribute to the discussion on linearity relationship between teaching and learning at university level. Although the basic assumption that students who are taught by effective instructors learn ... -
The emergence and evolution of a politicized market : the production and circulation of Kurdish music Turkey
(Bilkent University, 2015)This dissertation explicates the emergence and evolution of a market for Kurdish music in Turkey. Using ethnographic methods, I start by detailing the illegal circulation of cassettes during the restrictive and strife-laden ... -
GRJointNET: 3B eksik nokta bulutları için sinerjistik tamamlama ve parça bölütleme
(IEEE, 2021-07-19)Üç boyutlu (3B) nokta bulutları üzerinde bölütleme yapmak, otonom sistemler için önemli ve gerekli bir işlemdir. Bölütleme algoritmalarının başarısı, üzerinde işlem yapılan nokta bulutlarının niteliğine (çözünürlük, ... -
Heart sound segmentation using signal processing methods
(Bilkent University, 2015)Heart murmurs are pathological heart sounds that originate from blood flowing with abnormal turbulence due to physiological defects of the heart, and are the prime indicator of many heart-related diseases. Murmurs can ... -
Image classification of human carcinoma cells using complex wavelet-based covariance descriptors
(Public Library of Science, 2013-01-16)Cancer cell lines are widely used for research purposes in laboratories all over the world. Computer-assisted classification of cancer cells can alleviate the burden of manual labeling and help cancer research. In this ... -
Multi-task network for computed tomography segmentation through fractal dimension estimation
(Bilkent University, 2023-01)Multi-task learning proved to be an effective strategy to increase the performance of a dense prediction network on a segmentation task, by defining auxiliary tasks to reflect different aspects of the problem and ... -
Object-based 3-d motion and structure analysis for video coding applications
(Bilkent University, 1997)Novel 3-D motion analysis tools, which can be used in object-based video codecs, are proposed. In these tools, the movements of the objects, which are observed through 2-D video frames, are modeled in 3-D space. Segmentation ... -
The relationship between destination performance, overall satisfaction, and behavioral intention for distinct segments
(Routledge, 2004)Destination performance, visitor satisfaction, and favorable future behavior of visitors are key determinants of destination competitiveness. Most empirical work, assuming that overall tourist population is homogenous, ... -
Segmentation-aware MRI reconstruction
(Springer Cham, 2022-09-22)Deep learning models have been broadly adopted for accelerating MRI acquisitions in recent years. A common approach is to train deep models based on loss functions that place equal emphasis on reconstruction errors across ... -
Segmentation-based extraction of important objects from video for object-based indexing
(IEEE, 2008-06)We describe a method to automatically extract important video objects for object-based indexing. Most of the existing salient object detection approaches detect visually conspicuous structures in images, while our method ... -
Semantic scene classification for content-based image retrieval
(Bilkent University, 2008)Content-based image indexing and retrieval have become important research problems with the use of large databases in a wide range of areas. Because of the constantly increasing complexity of the image content, low-level ... -
Signal and image processing algorithms for agricultural applications
(Bilkent University, 2006)Medical studies indicate that acrylamide causes cancer in animals and certain doses of acrylamide are toxic to the nervous system of both animals and humans. Acrylamide is produced in carbohydrate foods prepared at high ... -
Targeted vessel reconstruction in non-contrast-enhanced steady-state free precession angiography
(John Wiley and Sons Ltd, 2016)Image quality in non-contrast-enhanced (NCE) angiograms is often limited by scan time constraints. An effective solution is to undersample angiographic acquisitions and to recover vessel images with penalized reconstructions. ...
