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Pablo Sala

dblp:23/8742 · DBLP profile ↗
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4ranked-venue papers
4as first author
0since 2021 · last 2010
—ORCID · none

Domains — the database's venue-derived domains; a paper can count in several

Artificial intelligence and machine learning · 3 · 3 first-authorGraphics, computer vision, multimedia, augmented reality and games · 2 · 2 first-authorSystems, architecture and hardware · 1 · 1 first-authorApplied, interdisciplinary, general and emerging computing · 1 · 1 first-author

Expertise — from the expertise taxonomy: the topics of the expert's papers under the CCF categories. A weight counts papers with recency: 1 for a paper about the topic, 0.3 when the topic is its context, halved every five years.

Artificial intelligence
2 papers
Segmentation and scene understanding · 64% Robot navigation and mapping · 36%
Computer graphics and multimedia
1 paper
Image and video processing · 100%
Theoretical computer science
1 paper
Approximation and online algorithms · 100%

Topics — the 4 heaviest of 4, each with the papers that count most for it

TopicWeightPapersLastEvidence papers
Computer vision › Segmentation and scene understanding
perceptual grouping
0.112010
Contour Grouping and Abstraction Using Simple Part Models · ECCV (5) 2010
Image and video processing › image segmentation
contour grouping
0.112010
Contour Grouping and Abstraction Using Simple Part Models · ECCV (5) 2010
Robotics › Robot navigation and mapping
visual navigation
0.112006
Landmark Selection for Vision-Based Navigation · IEEE Trans. Robotics 2006
Approximation and online algorithms
approximation algorithms
0.112006
Landmark Selection for Vision-Based Navigation · IEEE Trans. Robotics 2006

Methods — techniques the papers use, named apart from their topics

part-based model · 0.2graph-theoretic formulation · 0.1NP-completeness proof · 0.1
YearPublicationVenuePosition
2010 Spatiotemporal Contour Grouping Using Abstract Part Models
Pablo Sala, Diego Macrini, Sven J. Dickinson
ACCV (4)1
2010 Contour Grouping and Abstraction Using Simple Part Models
Pablo Sala, Sven J. Dickinson
ECCV (5)1
2006 Landmark Selection for Vision-Based Navigation
abstract
Recent work in the object recognition community has yielded a class of interest-point-based features that are stable under significant changes in scale, viewpoint, and illumination, making them ideally suited to landmark-based navigation. Although many such features may be visible in a given view of the robot's environment, only a few such features are necessary to estimate the robot's position and orientation. In this paper, we address the problem of automatically selecting, from the entire set of features visible in the robot's environment, the minimum (optimal) set by which the robot can navigate its environment. Specifically, we decompose the world into a small number of maximally sized regions, such that at each position in a given region, the same small set of features is visible. We introduce a novel graph theoretic formulation of the problem, and prove that it is NP-complete. Next, we introduce a number of approximation algorithms and evaluate them on both synthetic and real data. Finally, we use the decompositions from the real image data to measure the localization performance versus the undecomposed map
Pablo Sala, Robert Sim, Ali Shokoufandeh, Sven J. Dickinson
IEEE Trans. Robotics1
2004 Landmark selection for vision-based navigation
abstract
Recent work in the object recognition community has yielded a class of interest point-based features that are stable under significant changes in scale, viewpoint, and illumination, making them ideally suited to landmark-based navigation. Although many such features may be visible in a given view of the robot's environment, only a few such features are necessary to estimate the robot's position and orientation. In this paper, we address the problem of automatically selecting, from the entire set of features visible in the robot's environment, the minimum (optimal) set by which the robot can navigate its environment. Specifically, we decompose the world into a small number of maximally sized regions such that at each position in a given region, the same small set of features is visible. We introduce a novel graph theoretic formulation of the problem and prove that it is NP-complete. Next, we introduce a number of approximation algorithms and evaluate them on both synthetic and real data.
Pablo Sala, Robert Sim, Ali Shokoufandeh, Sven J. Dickinson
IROS1