Exploració per autor "Casas Pla, Josep Ramon"
Ara es mostren els items 6-25 de 90
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A closed-loop approach for tracking a humanoid robot using particle filtering and depth data
(Springer, 2017-05-24)
Article
Accés obertHumanoid robots introduce instabilities during biped march that complicate the process of estimating their position and orientation along time. Tracking humanoid robots may be useful not only in typical applications such ... -
A compact 3D representation for multi-view video
(2011)
Text en actes de congrés
Accés restringit per política de l'editorialThis 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 feature-based subband coding scheme
(Institute of Electrical and Electronics Engineers (IEEE), 1996)
Text en actes de congrés
Accés restringit per política de l'editorialA feature-based subband coding scheme is presented. It is intended for the coding of the texture component of a two-component image model. The primary component contains the strong edges, individually described by their ... -
A new approach to texture coding using stochastic vector quantization
(IEEE Computer Society, 1994)
Text en actes de congrés
Accés obertA new method for texture coding which combines 2-D linear prediction and stochastic vector quantization is presented in this paper. To encode a texture, a linear predictor is computed first. Next, a codebook following the ... -
A Preliminary study of deep learning sensor fusion for pedestrian detection
(Multidisciplinary Digital Publishing Institute (MDPI), 2023-04)
Article
Accés obertMost pedestrian detection methods focus on bounding boxes based on fusing RGB with lidar. These methods do not relate to how the human eye perceives objects in the real world. Furthermore, lidar and vision can have difficulty ... -
A real-time body tracking system for smart rooms
(2011)
Text en actes de congrés
Accés restringit per política de l'editorialWe present a real-time human body tracking system for a single user in a Smart Room scenario. In this paper we propose a novel system that involves a silhouette-based cost function using variable windows, a hierarchical ... -
A region-based subband coding scheme
(1997-07)
Article
Accés restringit per política de l'editorialThis paper describes a region-based subband coding scheme intended for efficient representation of the visual information contained in image regions of arbitrary shape. QMF filters are separately applied inside each region ... -
Acoustic event detection based on feature-level fusion of audio and video modalities
(HINDAWI, 2011-03-15)
Article
Accés obertAcoustic event detection (AED) aims at determining the identity of sounds and their temporal position in audio signals. When applied to spontaneously generated acoustic events, AED based only on audio information shows a ... -
An efficient technique of texture representation in segmentation-based image coding schemes
(IEEE IEEE, 1995)
Text en actes de congrés
Accés obertIn 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 ... -
Approximate partitioning of observations in hierarchical particle filter body tracking
(2011)
Text en actes de congrés
Accés restringit per política de l'editorialThis paper presents a model-based hierarchical particle filtering algorithm to estimate the pose and anthropometric parameters of humans in multi-view environments. Our method incorporates a novel likelihood measurement ... -
Audiovisual event detection towards scene understanding
(Institute of Electrical and Electronics Engineers (IEEE), 2009)
Text en actes de congrés
Accés restringit per política de l'editorialAcoustic events produced in meeting environments may contain useful information for perceptually aware interfaces and multimodal behavior analysis. In this paper, a system to detect and recognize these events from a ... -
Audiovisual head orientation estimation with particle filtering in multisensor scenarios
(2008-01)
Article
Accés obertThis article presents a multimodal approach to head pose estimation of individuals in environments equipped with multiple cameras and microphones, such as SmartRooms or automatic video conferencing. Determining the individuals ... -
Calibration with concurrent PT axes
(2009-02)
Text en actes de congrés
Accés obertThe introduction of active (pan-tilt-zoom or PTZ) cameras in Smart Rooms in addition to fixed static cameras allows to improve resolution in volumetric reconstruction, adding the capability to track smaller objects ... -
Can our TV robustly understand human gestures? Real-Time Gesture Localization in Range Data
(ACM Press. Association for Computing Machinery, 2012)
Text en actes de congrés
Accés restringit per política de l'editorialThe 'old' remote falls short of requirements when confronted with digital convergence for living room displays. Enriched options to watch, manage and interact with content on large displays demand improved means of ... -
Coding of details in very low bit-rate video systems
(1994-06)
Article
Accés obertIn this paper, the importance of including small image features at the initial levels of a progressive second generation video coding scheme is presented. It is shown that a number of meaningful small features called details ... -
Collaborative voting of 3D features for robust gesture estimation
(Institute of Electrical and Electronics Engineers (IEEE), 2017)
Comunicació de congrés
Accés obertHuman body analysis raises special interest because it enables a wide range of interactive applications. In this paper we present a gesture estimator that discriminates body poses in depth images. A novel collaborative ... -
Connected Operators on 3D data for human body analysis
(2011)
Text en actes de congrés
Accés restringit per política de l'editorialThis paper presents a novel method for filtering and extraction of human body features from 3D data, either from multi-view images or range sensors. The proposed algorithm consists in processing the geodesic distances on ... -
Correspondence matching in unorganized 3D point clouds using Convolutional Neural Networks
(2019-03-08)
Article
Accés obertThis document presents a novel method based in Convolutional Neural Networks (CNN) to obtain correspondence matchings between sets of keypoints of several unorganized 3D point cloud captures, independently of the sensor ... -
Depth estimation and semantic segmentation from a single RGB image using a hybrid convolutional neural network
(Multidisciplinary Digital Publishing Institute (MDPI), 2019-04-15)
Article
Accés obertSemantic segmentation and depth estimation are two important tasks in computer vision, and many methods have been developed to tackle them. Commonly these two tasks are addressed independently, but recently the idea of ... -
Detecting end-effectors on 2.5D data using geometric deformable models: application to human pose estimation
(2013-03)
Article
Accés restringit per política de l'editorialEnd-effectors are usually related to the location of limbs, and their reliable detection enables robust body tracking as well as accurate pose estimation. Recent innovation in depth cameras has re-stated the pose estimation ...
