D 2021

Fast Bridgeless Pyramid Segmentation for Organized Point Clouds

MADARAS, Martin, Martin STUCHLIK and Matúš TALČÍK

Basic information

Original name

Fast Bridgeless Pyramid Segmentation for Organized Point Clouds

Authors

MADARAS, Martin, Martin STUCHLIK and Matúš TALČÍK (703 Slovakia, belonging to the institution)

Edition

SETUBAL, VISAPP: PROCEEDINGS OF THE 16TH INTERNATIONAL JOINT CONFERENCE ON COMPUTER VISION, IMAGING AND COMPUTER GRAPHICS THEORY AND APPLICATIONS - VOL. 4: VISAPP, p. 205-210, 6 pp. 2021

Publisher

SCITEPRESS

Other information

Language

English

Type of outcome

Stať ve sborníku

Field of Study

10201 Computer sciences, information science, bioinformatics

Country of publisher

Portugal

Confidentiality degree

není předmětem státního či obchodního tajemství

Publication form

electronic version available online

RIV identification code

RIV/00216224:14330/21:00123673

Organization unit

Faculty of Informatics

ISBN

978-989-758-488-6

UT WoS

000668577400019

Keywords in English

Point Cloud; Segmentation; Parallel; Pyramid; GPU; CUDA

Tags

International impact, Reviewed
Změněno: 23/5/2022 15:09, RNDr. Pavel Šmerk, Ph.D.

Abstract

V originále

An intelligent automatic robotic system needs to understand the world as fast as possible. A common way to capture the world is to use a depth camera. The depth camera produces an organized point cloud that later needs to be processed to understand the scene. Usually, segmentation is one of the first preprocessing steps for the data processing pipeline. Our proposed pyramid segmentation is a simple, fast and lightweight split-and-merge method designed for depth cameras. The algorithm consists of two steps, edge detection and a hierarchical method for bridgeless labeling of connected components. The pyramid segmentation generates the seeds hierarchically, in a top-down manner, from the largest regions to the smallest ones. The neighboring areas around the seeds are filled in a parallel manner, by rendering axis-aligned line primitives, which makes the performance of the method fast. The hierarchical approach of labeling enables to connect neighboring segments without unnecessary bridges in a parallel way that can be efficiently implemented using CUDA.