Browsing by Subject "Image segmentation"
Now showing items 1-20 of 104
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3D hierarchical optimization for multi-view depth map coding
(2017-11-28)
Article
Open AccessDepth data has a widespread use since the popularity of high resolution 3D sensors. In multi-view sequences, depth information is used to supplement the color data of each view. This article proposes a joint encoding of ... -
3D modelling of leaves from color and ToF data for robotized plant measuring
(2011)
Conference report
Restricted access - publisher's policySupervision of long-lasting extensive botanic experiments is a promising robotic application that some recent technological advances have made feasible. Plant modelling for this application has strong demands, particularly ... -
3D point cloud segmentation using a fully connected conditional random field
(Institute of Electrical and Electronics Engineers (IEEE), 2017)
Conference lecture
Restricted access - publisher's policyTraditional image segmentation methods working with low level image features are usually difficult to adapt to higher level tasks, such as object recognition and scene understanding. Object segmentation emerges as a new ... -
3D point cloud video segmentation oriented to the analysis of interactions
(Institute of Electrical and Electronics Engineers (IEEE), 2016)
Conference lecture
Open AccessGiven the widespread availability of point cloud data from consumer depth sensors, 3D point cloud segmentation becomes a promising building block for high level applications such as scene understanding and interaction ... -
A comparison study of U-Net based methods for brain tumor segmentation
(Universitat Politècnica de Catalunya, 2023-10-19)
Master thesis
Open Access
Covenantee: Universitat de BarcelonaThe brain tumor segmentation (BraTS) Challenge is an international competition that focuses on the task of automated segmentation of the different parts of brain tumors in magnetic resonance imaging (MRI) scans. U-Net ... -
A contribution to video coding using layers
(1998)
Conference report
Open AccessLayered representations of video sequences, originally introduced in [1], are important in several applications. Specifically, they are very appropriate for object tracking, object manipulation, content-based scalability ... -
A morphological approach for segmentation and tracking of human faces
(Barcelona, 2000)
Conference lecture
Open AccessA new technique for segmenting and tracking human faces in video sequences is presented. The technique relies on morphological tools such as using connected operators to extract the connected component that more likely ... -
A robust motion estimation and segmentation approach to represent moving images with layers
(IEEE COMPUTER SOCIETY, 1997)
Conference report
Open AccessThe paper provides a robust representation of moving images based on layers. To that goal, we have designed efficient motion estimation and segmentation techniques by affine model fitting suitable for the construction of ... -
A segmentation-based coding system allowing manipulation of objects (sesame)
(IEEE, 1996)
Conference report
Open AccessWe present a coding scheme that achieves, for each image in the sequence, the best segmentation in terms of rate-distortion theory. It is obtained from a set of initial regions and a set of available coding techniques. The ... -
A simple and efficient face detection algorithm for video database applications
(Institute of Electrical and Electronics Engineers (IEEE), 2000)
Conference report
Open AccessThe objective of this work is to provide a simple and yet efficient tool to detect human faces in video sequences. This information can be very useful for many applications such as video indexing and video browsing. In ... -
A video object generation tool allowing friendly user interaction
(Institute of Electrical and Electronics Engineers (IEEE), 1999)
Conference report
Open AccessIn this paper we describe an interactive video object segmentation tool developed in the framework of the ACTS-AC098 MOMUSYS project. The Video Object Generator with User Environment (VOGUE) combines three different sets ... -
Accelerate deployment and enhance robustness of deep learning-based optical process monitoring through synthetic image data generation
(Universitat Politècnica de Catalunya, 2024-10-17)
Master thesis
Open AccessEnsuring consistent product quality is a fundamental aspect of modern manufacturing, directly impacting safety, profitability, and customer satisfaction. Traditional quality control methods, reliant on manual inspection ... -
Accurate detection and depth estimation of table grapes and peduncles for robot harvesting, combining monocular depth estimation and CNN methods
(Elsevier, 2023-12)
Article
Open AccessPrecision agriculture is a growing field in the agricultural industry and it holds great potential in fruit and vegetable harvesting. In this work, we present a robust accurate method for the detection and localization of ... -
Active mesh coding and rate-distortion theory
(Institute of Electrical and Electronics Engineers (IEEE), 1996)
Conference lecture
Open AccessThis paper presents a video coding scheme for very low bit rate applications. The coding approach relies on active meshes and can be viewed as a particular case of region-based coding. The active mesh is used to efficiently ... -
An efficient technique of texture representation in segmentation-based image coding schemes
(IEEE IEEE, 1995)
Conference report
Open AccessIn segmentation-based image coding techniques the image to be compressed is first segmented. Then, the information is coded describing the shape and the interior of the regions. A new method to encode the texture obtained ... -
An innovative image processing-based framework for the numerical modelling of cracked masonry structures
(Elsevier, 2021-05)
Article
Open AccessA vital aspect when modelling the mechanical behaviour of existing masonry structures is the accuracy in which the geometry of the real structure is transferred in the numerical model. Commonly, the geometry of masonry is ... -
Anisotropic mesh adaptation for region-based segmentation accounting for image spatial information
(2022-09-01)
Article
Open AccessA finite element-based image segmentation strategy enhanced by an anisotropic mesh adaptation procedure is presented. The methodology relies on a split Bregman algorithm for the minimisation of a region-based energy ... -
Automatic post-processing of left atrium segmentations
(Universitat Politècnica de Catalunya, 2023-05-16)
Master thesis
Restricted access - author's decision
Covenantee: ADAS3D Medical / Universitat de Barcelona / Universitat Rovira i VirgiliCardiac anatomical segmentation is an essential step in many clinical applications that require quantitative measures such as myocardial mass and ventricle volume. Traditionally, these segmentations were manually performed ... -
Background subtraction in AV productions without chroma-key
(Universitat Politècnica de Catalunya, 2024-02-02)
Bachelor thesis
Open AccessEn este trabajo de fin de grado se propone un cambio de paradigma en los entornos de producción audiovisual para prescindir del croma en escenas donde se requiera una sustitución del fondo. Se propone un modelo de segmentación ... -
Binary partition tree as a polarimetric SAR data representation in the space-time domain
(IEEE, 2011)
Conference lecture
Restricted access - publisher's policyThe aim of this paper is to present a Polarimetric Synthetic Aperture Radar data processing technique on the space-time domain. This approach is based on a Binary Partition Tree (BPT), which is a region-based and multi-scale ...
