Search Results for author: Gregory Randall

Found 7 papers, 3 papers with code

UruDendro, a public dataset of cross-section images of Pinus taeda

1 code implementation16 Apr 2024 Henry Marichal, Diego Passarella, Christine Lucas, Ludmila Profumo, Verónica Casaravilla, María Noel Rocha Galli, Serrana Ambite, Gregory Randall

The automatic detection of tree-ring boundaries and other anatomical features using image analysis has progressed substantially over the past decade with advances in machine learning and imagery technology, as well as increasing demands from the dendrochronology community.

Automatic Wood Pith Detector: Local Orientation Estimation and Robust Accumulation

1 code implementation2 Apr 2024 Henry Marichal, Diego Passarella, Gregory Randall

A fully automated technique for wood pith detection (APD), relying on the concentric shape of the structure of wood ring slices, is introduced.

Object Detection

CS-TRD: a Cross Sections Tree Ring Detection method

1 code implementation18 May 2023 Henry Marichal, Diego Passarella, Gregory Randall

This work describes a Tree Ring Detection method for complete Cross-Sections of trees (CS-TRD).

Boundary Detection

The whole and the parts: the MDL principle and the a-contrario framework

no code implementations13 Dec 2021 Rafael Grompone von Gioi, Ignacio Ramírez Paulino, Gregory Randall

This work explores the connections between the Minimum Description Length (MDL) principle as developed by Rissanen, and the a-contrario framework for structure detection proposed by Desolneux, Moisan and Morel.

Line Segment Detection

Psychophysics, Gestalts and Games

no code implementations25 May 2018 José Lezama, Samy Blusseau, Jean-Michel Morel, Gregory Randall, Rafael Grompone von Gioi

Using a computational quantitative version of the non-accidentalness principle, we raise the possibility that the psychophysical and the (older) gestaltist setups, both applicable on dot or Gabor patterns, find a useful complement in a Turing test.

Human Detection

Finding Vanishing Points via Point Alignments in Image Primal and Dual Domains

no code implementations CVPR 2014 Jose Lezama, Rafael Grompone von Gioi, Gregory Randall, Jean-Michel Morel

We present a novel method for automatic vanishing point detection based on primal and dual point alignment detection.

A Contrario Selection of Optimal Partitions for Image Segmentation

no code implementations6 May 2013 Juan Cardelino, Vicent Caselles, Marcelo Bertalmio, Gregory Randall

Our first goal is to extend the search space of greedy merging algorithms to the set of all partitions spanned by a certain hierarchy, and to cast the segmentation as a selection problem within this space.

Image Segmentation Segmentation +1

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