Image representation with reduced spectrum pyramid

R Kountchev, R Kountcheva - New Directions in Intelligent Interactive …, 2008 - Springer
The paper presents one new approach for image decomposition based on spectrum
pyramid with reduced number of coefficients (lower or equal to the number of the image …

Documents image compression with IDP and adaptive RLE

R Kountchev, V Todorov, M Milanova… - IECON 2006-32nd …, 2006 - ieeexplore.ieee.org
In the paper is presented a new method for efficient lossless documents image compression,
based on the inverse difference pyramid (IDP) decomposition. The method is aimed at the …

[PDF][PDF] Adaptive fuzzy filter for the reduction of blocking artifacts in images compressed with IDP decomposition and JPEG

R Kountchev, M Milanova, V Todorov… - WSEAS Trans. on …, 2006 - researchgate.net
In the paper is presented new filter for blocking artifacts reduction in still images, processed
with IDP Inverse Difference Pyramid (IDP) decomposition, based on 2D DCT and Walsh …

[PDF][PDF] Lossless compression of biometric image data

R Kountchev, V Todorov, R Kountcheva… - WSEAS Intern. Conf …, 2006 - researchgate.net
In the paper is presented a new approach for solving some of the authentication problems in
large computer systems, communication networks and mobile communications, using a new …

Content based image retrieval using adaptive inverse pyramid representation

M Milanova, R Kountchev, S Rubin, V Todorov… - Human Interface and the …, 2009 - Springer
This paper presents a new approach for content-based image retrieval using cognitive
representation with pyramidal decomposition. This approach corresponds to the hypothesis …

Content protection and hierarchical access control in image databases

R Kountchev, M Milanova… - … on Innovations in …, 2015 - ieeexplore.ieee.org
The paper presents a new technique for archiving and protecting content of visual medical
information. A special format is developed based on a new Inverse Pyramid decomposition …

Adaptive compression of compound images

R Kountchev, M Milanova, V Todorov… - … on Systems, Signals …, 2007 - ieeexplore.ieee.org
In the paper is presented new method for efficient compression of compound still images,
containing pictures and texts/graphics. The method is based on the inverse difference …

Compression of multispectral and multi-view images with inverse pyramid decomposition

RK Kountchev, VT Todorov… - International Journal of …, 2011 - inderscienceonline.com
In this paper, a new approach for compression of multi-view and multispectral images,
based on the Inverse Pyramid Decomposition (IPD), is presented. This approach is …

Linear and Non-linear Inverse Pyramidal Image Representation: Algorithms and Applications

R Kountchev, V Todorov, R Kountcheva - Advances in Reasoning-Based …, 2012 - Springer
In the chapter is presented one specific approach for image representation, known as
Inverse Pyramid Decomposition (IPD), and its main applications. The chapter is arranged as …

Comparison of image decompositions through inverse difference and Laplacian pyramids

R Kountchev, S Rubin, M Milanova… - International Journal of …, 2015 - igi-global.com
In this work, the Inverse Difference Pyramid (IDP) and its modification–the Reduced IDP
(RIDP), are compared and evaluated with the famous Laplacian Pyramid (LP) for multi-level …