A Model of Pixel and Superpixel Clustering for Object Detection release_aj2wyj77ljewxlqc4uehe65jza

by Vadim Nenashev, Igor Khanykov, Mikhail V. Kharinov

Published in Journal of Imaging by MDPI AG.

2022   Issue 10, p274

Abstract

The paper presents a model of structured objects in a grayscale or color image, described by means of optimal piecewise constant image approximations, which are characterized by the minimum possible approximation errors for a given number of pixel clusters, where the approximation error means the total squared error. An ambiguous image is described as a non-hierarchical structure but is represented as an ordered superposition of object hierarchies, each containing at least one optimal approximation in g0 = 1,2,..., etc., colors. For the selected hierarchy of pixel clusters, the objects-of-interest are detected as the pixel clusters of optimal approximations, or as their parts, or unions. The paper develops the known idea in cluster analysis of the joint application of Ward's and K-means methods. At the same time, it is proposed to modernize each of these methods and supplement them with a third method of splitting/merging pixel clusters. This is useful for cluster analysis of big data described by a convex dependence of the optimal approximation error on the cluster number and also for adjustable object detection in digital image processing, using the optimal hierarchical pixel clustering, which is treated as an alternative to the modern informally defined "semantic" segmentation.
In application/xml+jats format

Archived Files and Locations

application/pdf  1.8 MB
file_qufpaaxykbc2jjev2apxl3b3ui
mdpi-res.com (publisher)
web.archive.org (webarchive)
Read Archived PDF
Preserved and Accessible
Type  article-journal
Stage   published
Date   2022-10-06
Language   en ?
Journal Metadata
Open Access Publication
In DOAJ
In ISSN ROAD
In Keepers Registry
ISSN-L:  2313-433X
Work Entity
access all versions, variants, and formats of this works (eg, pre-prints)
Catalog Record
Revision: fbaa22fa-e672-4729-a629-796293c270a9
API URL: JSON