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Browsing by Subject "Image processing"
Now showing items 1-20 of 659
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3D pose estimation using convolutional neural networks
(Universitat Politècnica de Catalunya, 2015-10)
Master thesis
Open AccessThe present Master Thesis describes a new Pose Estimation method based on Convolutional Neural Networks (CNN). This method divides the three-dimensional space in several regions and, given an input image, returns the ... -
3D reconstruction and recognition of objects using a kinect camera
(Universitat Politècnica de Catalunya, 2016-09)
Bachelor thesis
Open Access
Covenantee: Technische Universität MünchenThis project is based on the recent advances of 3D depth cameras, one being the Microsoft Kinect sensors. Nowadays, this technology enables to create really accurate 3D figures and scenes simplifying difficult tasks in ... -
3D shape from multi-camera views by error projection minimization
(2010)
Conference report
Open AccessTraditional shape from silhouette methods compute the 3D shape as the intersection of the back-projected silhouettes in the 3D space, the so called visual hull. However, silhouettes that have been obtained with background ... -
3D surface reconstruction in telepresence systems
(Universitat Politècnica de Catalunya, 2017-06)
Bachelor thesis
Open AccessRegistering three-dimensional models is possible thanks to the use of multi view captures or the readings provided by depth sensors, which can be applied in Augmented or Virtual Reality systems. In this sense, this project ... -
4D Cardiac MRI Segmentation and Surface Reconstruction
(Universitat Politècnica de Catalunya, 2008-10-10)
Master thesis (pre-Bologna period)
Open Access -
4D Cardiac Segmentation and Respiratory Motion Modeling of the Human Heart
(Universitat Politècnica de Catalunya, 2009-06)
Master thesis (pre-Bologna period)
Open AccessAtrial Fibrillation (AF) is a growing problem in modern societies with an enormous impact in both short term quality of life and long term survival. A recently developed promising approach to cure AF uses radiofrequency ... -
A 3D Terrain Generator: Enhancing Robotics Simulations with GANs
(Universitat Politècnica de Catalunya, 2023-07-06)
Bachelor thesis
Open Access
Covenantee: Aalto-yliopistoSimulation is essential in robotics to evaluate models and techniques in a controlled setting before conducting experiments on tangible agents. However, developing simulation environments can be a challenging and time-consuming ... -
A combination of monocular depth estimation and depth completion for an enhanced RGB-D sensing
(Universitat Politècnica de Catalunya, 2024-09-13)
Master thesis
Open AccessDepth perception is the capability of a system to estimate the distance of objects in a 3D scene by analyzing one or more 2D images or video frames. Depth perception is critical for applications such as robotics, autonomous ... -
A compact 3D representation for multi-view video
(2011)
Conference report
Restricted access - publisher's policyThis paper presents a methodology for obtaining a 3D reconstruction of a dynamic scene in multi-camera settings. Our target is to derive a compact representation of the 3D scene which is effective and accurate, whatever ... -
A comparative study between Elliptic Fourier and B-spline descriptors for object contour representation
(2014)
Conference report
Restricted access - publisher's policyIn this work, a comparative study between Elliptic Fourier and B-spline descriptors is carried out for comparing their efficiency in characterizing the contour shape of image objects. In both cases, the goal is to obtain ... -
A comparison of contrast enhancement methods for 2D radiographic images: Applied to patient positioning in proton therapy
(Universitat Politècnica de Catalunya, 2015-05-08)
Master thesis (pre-Bologna period)
Open Access
Covenantee: Université Catholique de LouvainDifferent methods for radiographic image contrast enhancement are studied, implemented and compared. The efficiency of the techniques in improving image contrast is then evaluated both on a subjective evaluation from ... -
A digital image processing method for urban scenes brightness assessment
(Centre de Política de Sòl i Valoracions - Universitat Politècnica de Catalunya, 2016-10)
Article
Open AccessThe appearance of the city is strongly linked to many aspects such as climate, culture and sociological background. In cities with a prevalence of clear skies, one of the determining aspects is the climatic condition, which ... -
A discrete labelling approach to attributed graph matching using SIFT features
(2010)
Conference report
Open AccessLocal invariant feature extraction methods are widely used for image-features matching. There exist a number of approaches aimed at the refinement of the matches between image-features. It is a common strategy among these ... -
A machine learning based recommendation system for furniture selection
(Universitat Politècnica de Catalunya, 2022-07-04)
Bachelor thesis
Open AccessArtificial Intelligence (AI) is one of today's fastest growing technologies, and has been evolving for decades. It allows machines to have the ability to "learn", and self-correct. This technology is used in many fields, ... -
A machine learning pipeline for labeling chess pieces images
(Universitat Politècnica de Catalunya, 2023-10-16)
Bachelor thesis
Open AccessNowadays there are lots of emerging use cases and fields to artificial intelligence/machine learning technologies. One of several relevant fields is that of image recognition model training, which itself has several potential ... -
A machine learning pose transfer system
(Universitat Politècnica de Catalunya, 2022-07-04)
Bachelor thesis
Open AccessIn recent years, the introduction of Machine Learning together with the use of conventional image processing techniques has given a boost to the generation of images. However, as these models are getting better their ... -
A Method to determine secondary codes and carrier phases of short snapshot signals
(2022-12)
Article
Open AccessRecently, the Snapshot Real-Time Kinematic (SRTK) technique was demonstrated, which aims at achieving high accuracy navigation solutions with a very short signal collection. The main challenge in implementing SRTK is the ... -
A new otolith image contour descriptor based on partial reflection
(2010-12)
Article
Restricted access - publisher's policyIn this paper we propose a new contour descriptor for reconstructing fish otolith contours that uses half the number of coefficients needed by the classical elliptical Fourier descriptors (EFDs) for the same accuracy. ... -
A novel non-invasive optical framework for simultaneous analysis of contractility and calcium in single-cell cardiomyocytes
(Elsevier, 2025-01-01)
Article
Open AccessThe use of a video method based on the Digital Image Correlation (DIC) algorithm from experimental mechanics to estimate the displacements, strain field, and sarcolemma length in a beating single-cell cardiomyocyte is ... -
A scalable approach to T2-MRI colon segmentation
(2020-07-01)
Article
Open AccessThe study of the colonic volume is a procedure with strong relevance to gastroenterologists. Depending on the clinical protocols, the volume analysis has to be performed on MRI of the unprepared colon without contrast ...