𝔖 Bobbio Scriptorium
✦   LIBER   ✦

On the Multiscale Representation of 2D and 3D Shapes

✍ Scribed by Gunilla Borgefors; Giuliana Ramella; Gabriella Sanniti di Baja; Stina Svensson

Publisher
Elsevier Science
Year
1999
Tongue
English
Weight
195 KB
Volume
61
Category
Article
ISSN
1077-3169

No coin nor oath required. For personal study only.

✦ Synopsis

Binary pyramids in two and three dimensions can be used for multiresolution representation. The "standard" OR and AND pyramids have serious drawbacks, as they distort the shape significantly; therefore they can seldom be used effectively. Here we present alternative approaches to build binary pyramids, aimed at improving shape preservation (and, as far as possible, topology preservation) in lower resolutions. The algorithms are easy to implement and produce good results.

πŸ“œ SIMILAR VOLUMES

Representation and Recognition of 3D Fre
Representation and Recognition of 3D Free-Form Objects
✍ George Mamic; Mohammed Bennamoun πŸ“‚ Article πŸ“… 2002 πŸ› Elsevier Science 🌐 English βš– 333 KB

The problem of 3D object recognition has been one that has perplexed the computer vision community for the past two decades. This paper describes and analyzes techniques which have been developed for object representation and recognition. A set of specifications, which all object recognition systems

Quaternionic representation of the 3D el
Quaternionic representation of the 3D elastic and thermoelastic boundary problems
✍ Alexander Tsalik πŸ“‚ Article πŸ“… 1995 πŸ› John Wiley and Sons 🌐 English βš– 359 KB

## Abstract This paper contains new representations of the 3D elasticity and thermoelasticity problems, expressed in terms of regular quaternion functions, which in 3D and 4D have properties analogous to those of complex analytical functions in 2D. The known and some new results, described in the p

Coronavirus phylogeny based on 2D graphi
Coronavirus phylogeny based on 2D graphical representation of DNA sequence
✍ Bo Liao; Xuyu Xiang; Wen Zhu πŸ“‚ Article πŸ“… 2006 πŸ› John Wiley and Sons 🌐 English βš– 590 KB

## Abstract A novel coronavirus has been identified as the cause of the outbreak of severe acute respiratory syndrome (SARS). Previous phylogenetic analyses based on sequence alignments show that SARS‐CoVs form a new group distantly related to the other three groups of previously characterized coro