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Author |
X. Orriols; Lluis Barcelo; X. Binefa |
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Title |
Polynomial Fiber Description of Motion for Video Mosaicing, Proceeding ICIP 2001. |
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2001 |
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IEEE International Conference on Image Processing, Grecia, 1:1030–1033. |
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Admin @ si @ OBB2001a |
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143 |
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Author |
Jaime Moreno; Xavier Otazu |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Image compression algorithm based on Hilbert scanning of embedded quadTrees: an introduction of the Hi-SET coder |
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2011 |
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IEEE International Conference on Multimedia and Expo |
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1-6 |
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In this work we present an effective and computationally simple algorithm for image compression based on Hilbert Scanning of Embedded quadTrees (Hi-SET). It allows to represent an image as an embedded bitstream along a fractal function. Embedding is an important feature of modern image compression algorithms, in this way Salomon in [1, pg. 614] cite that another feature and perhaps a unique one is the fact of achieving the best quality for the number of bits input by the decoder at any point during the decoding. Hi-SET possesses also this latter feature. Furthermore, the coder is based on a quadtree partition strategy, that applied to image transformation structures such as discrete cosine or wavelet transform allows to obtain an energy clustering both in frequency and space. The coding algorithm is composed of three general steps, using just a list of significant pixels. The implementation of the proposed coder is developed for gray-scale and color image compression. Hi-SET compressed images are, on average, 6.20dB better than the ones obtained by other compression techniques based on the Hilbert scanning. Moreover, Hi-SET improves the image quality in 1.39dB and 1.00dB in gray-scale and color compression, respectively, when compared with JPEG2000 coder. |
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1945-7871 |
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978-1-61284-348-3 |
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Admin @ si @ MoO2011a |
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2176 |
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Marc Bolaños; R. Mestre; Estefania Talavera; Xavier Giro; Petia Radeva |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Visual Summary of Egocentric Photostreams by Representative Keyframes |
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2015 |
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IEEE International Conference on Multimedia and Expo ICMEW2015 |
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1-6 |
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egocentric; lifelogging; summarization; keyframes |
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Building a visual summary from an egocentric photostream captured by a lifelogging wearable camera is of high interest for different applications (e.g. memory reinforcement). In this paper, we propose a new summarization method based on keyframes selection that uses visual features extracted bymeans of a convolutional neural network. Our method applies an unsupervised clustering for dividing the photostreams into events, and finally extracts the most relevant keyframe for each event. We assess the results by applying a blind-taste test on a group of 20 people who assessed the quality of the
summaries. |
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Torino; italy; July 2015 |
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978-1-4799-7079-7 |
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978-1-4799-7079-7 |
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Admin @ si @ BMT2015 |
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2638 |
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Author |
Fadi Dornaika; Bogdan Raducanu |
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Title |
Constructing Panoramic Views Through Facial Gaze Tracking |
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Conference Article |
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2008 |
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IEEE International Conference on Multimedia and Expo, |
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969–972 |
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Hannover (Germany) |
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BCNPCL @ bcnpcl @ DoR2008b |
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983 |
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Author |
David Guillamet; Jordi Vitria |
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Title |
Determining a Suitable Metric when using Non-negative Matrix Factorization. |
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Miscellaneous |
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2002 |
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IEEE International Conference on Pattern Recognition, 2: 128–131. |
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Quebec, Canada |
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OR;MV |
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BCNPCL @ bcnpcl @ GVi2002 |
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294 |
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Author |
J.R. Serra; J.B. Subirana |
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Title |
Perceptual Grouping on Texture Images Using Non-Cartesian Networks |
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1996 |
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IEEE International Conference on Pattern Recognition. Vol B, pp. 462–466 |
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Admin @ si @ SeS1996a |
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217 |
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Author |
X. Binefa; Jordi Vitria |
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Title |
A contrast based focusing criterium. |
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1996 |
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IEEE International Conference on Pattern Recognition. Vol. A, pp. 805–809 |
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BCNPCL @ bcnpcl @ BiV1996 |
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79 |
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Author |
Angel Sappa; M.A. Garcia |
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Title |
Hierarchical Clustering of 3D Objects and its Application to Minimum Distance Computation |
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2004 |
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IEEE International Conference on Robotics & Automation, 5287–5292, New Orleans, LA (USA), ISBN: 0–7803–8232–3 |
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New Orleans, LA, USA |
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ADAS @ adas @ SaG2004b |
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459 |
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Author |
Angel Sappa |
![goto web page url](img/www.gif)
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Title |
Efficient Closed Contour Extraction from Range Image Edge Points |
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2005 |
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IEEE International Conference on Robotics and Automation |
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Barcelona (Spain) |
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ADAS @ adas @ Sap2005 |
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538 |
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Author |
Elvina Motard; Bogdan Raducanu; Viviane Cadenat; Jordi Vitria |
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Title |
Incremental On-Line Topological Map Learning for A Visual Homing Application |
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Conference Article |
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2007 |
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IEEE International Conference on Robotics and Automation |
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2049–2054 |
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Roma (Italy) |
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ICRA |
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OR; MV |
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BCNPCL @ bcnpcl @ MRC2007 |
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793 |
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Author |
Hugo Berti; Angel Sappa; Osvaldo Agamennoni |
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Title |
Autonomous robot navigation with a global and asymptotic convergence |
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2007 |
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IEEE International Conference on Robotics and Automation |
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2712–2717 |
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Roma (Italy) |
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ADAS @ adas @ BSA2007 |
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796 |
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Author |
Bogdan Raducanu; Fadi Dornaika |
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Title |
Dynamic Facial Expression Recognition Using Laplacian Eigenmaps-Based Manifold Learning |
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Conference Article |
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2010 |
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IEEE International Conference on Robotics and Automation |
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156–161 |
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In this paper, we propose an integrated framework for tracking, modelling and recognition of facial expressions. The main contributions are: (i) a view- and texture independent scheme that exploits facial action parameters estimated by an appearance-based 3D face tracker; (ii) the complexity of the non-linear facial expression space is modelled through a manifold, whose structure is learned using Laplacian Eigenmaps. The projected facial expressions are afterwards recognized based on Nearest Neighbor classifier; (iii) with the proposed approach, we developed an application for an AIBO robot, in which it mirrors the perceived facial expression. |
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Anchorage; AK; USA; |
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1050-4729 |
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978-1-4244-5038-1 |
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BCNPCL @ bcnpcl @ RaD2010 |
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1310 |
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Author |
Jiaolong Xu; David Vazquez; Krystian Mikolajczyk; Antonio Lopez |
![download PDF file pdf](img/file_PDF.gif)
![goto web page (via DOI) doi](img/doi.gif)
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Hierarchical online domain adaptation of deformable part-based models |
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2016 |
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IEEE International Conference on Robotics and Automation |
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5536-5541 |
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Domain Adaptation; Pedestrian Detection |
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We propose an online domain adaptation method for the deformable part-based model (DPM). The online domain adaptation is based on a two-level hierarchical adaptation tree, which consists of instance detectors in the leaf nodes and a category detector at the root node. Moreover, combined with a multiple object tracking procedure (MOT), our proposal neither requires target-domain annotated data nor revisiting the source-domain data for performing the source-to-target domain adaptation of the DPM. From a practical point of view this means that, given a source-domain DPM and new video for training on a new domain without object annotations, our procedure outputs a new DPM adapted to the domain represented by the video. As proof-of-concept we apply our proposal to the challenging task of pedestrian detection. In this case, each instance detector is an exemplar classifier trained online with only one pedestrian per frame. The pedestrian instances are collected by MOT and the hierarchical model is constructed dynamically according to the pedestrian trajectories. Our experimental results show that the adapted detector achieves the accuracy of recent supervised domain adaptation methods (i.e., requiring manually annotated targetdomain data), and improves the source detector more than 10 percentage points. |
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Stockholm; Sweden; May 2016 |
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ADAS; 600.085; 600.082; 600.076 |
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Admin @ si @ XVM2016 |
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2728 |
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Felipe Codevilla; Matthias Muller; Antonio Lopez; Vladlen Koltun; Alexey Dosovitskiy |
![download PDF file pdf](img/file_PDF.gif)
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Title |
End-to-end Driving via Conditional Imitation Learning |
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Conference Article |
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2018 |
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IEEE International Conference on Robotics and Automation |
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4693 - 4700 |
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Deep networks trained on demonstrations of human driving have learned to follow roads and avoid obstacles. However, driving policies trained via imitation learning cannot be controlled at test time. A vehicle trained end-to-end to imitate an expert cannot be guided to take a specific turn at an upcoming intersection. This limits the utility of such systems. We propose to condition imitation learning on high-level command input. At test time, the learned driving policy functions as a chauffeur that handles sensorimotor coordination but continues to respond to navigational commands. We evaluate different architectures for conditional imitation learning in vision-based driving. We conduct experiments in realistic three-dimensional simulations of urban driving and on a 1/5 scale robotic truck that is trained to drive in a residential area. Both systems drive based on visual input yet remain responsive to high-level navigational commands. The supplementary video can be viewed at this https URL |
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Brisbane; Australia; May 2018 |
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ADAS; 600.116; 600.124; 600.118 |
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Admin @ si @ CML2018 |
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3108 |
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Jiaolong Xu; Peng Wang; Heng Yang; Antonio Lopez |
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Title |
Training a Binary Weight Object Detector by Knowledge Transfer for Autonomous Driving |
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Conference Article |
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2019 |
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IEEE International Conference on Robotics and Automation |
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2379-2384 |
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Autonomous driving has harsh requirements of small model size and energy efficiency, in order to enable the embedded system to achieve real-time on-board object detection. Recent deep convolutional neural network based object detectors have achieved state-of-the-art accuracy. However, such models are trained with numerous parameters and their high computational costs and large storage prohibit the deployment to memory and computation resource limited systems. Low-precision neural networks are popular techniques for reducing the computation requirements and memory footprint. Among them, binary weight neural network (BWN) is the extreme case which quantizes the float-point into just bit. BWNs are difficult to train and suffer from accuracy deprecation due to the extreme low-bit representation. To address this problem, we propose a knowledge transfer (KT) method to aid the training of BWN using a full-precision teacher network. We built DarkNet-and MobileNet-based binary weight YOLO-v2 detectors and conduct experiments on KITTI benchmark for car, pedestrian and cyclist detection. The experimental results show that the proposed method maintains high detection accuracy while reducing the model size of DarkNet-YOLO from 257 MB to 8.8 MB and MobileNet-YOLO from 193 MB to 7.9 MB. |
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Montreal; Canada; May 2019 |
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ICRA |
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ADAS; 600.124; 600.116; 600.118 |
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Admin @ si @ XWY2018 |
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3182 |
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