Publications

Publications by Aurélio Campilho

2000

A computational model of visual cortex receptive fields using spatio-temporal filters

Authors
Milanova, MG; Elmaghraby, AS; Wachowiak, MP; Campilho, A;

Publication
2000 IEEE EMBS INTERNATIONAL CONFERENCE ON INFORMATION TECHNOLOGY APPLICATIONS IN BIOMEDICINE, PROCEEDINGS

Abstract
It is known that neurons in the primary visual cortex are characterized by receptive fields that are selective for speciftc spatial orientations. It is believed that the sense of object motion and velocity are also related to these fields, as objects in natural scenes are represented by a sparse set of statistically independent components, such as edges. Currently, computational models of receptive fields consider only spatial components, and thus cannot account for time-varying sensory stimuli. In this paper, a model based on independent components analysis and cellular neural networks is proposed. This approach extends existing models to incorporate temporal aspects of sequences of images of natural scenes.

CloseRead Abstract

1994

FUNDAMENTALS OF IMAGE-PROCESSING AND ANALYSIS

Authors
CAMPILHO, AJC;

Publication
IMAGING TECHNIQUES IN BIOMATERIALS: DIGITAL IMAGE PROCESSING APPLIED TO ORTHOPAEDIC AND DENTAL IMPLANTS

Abstract

1993

CALIBRATION OF A 3-D DATA-ACQUISITION SYSTEM USING THE RATIO OF 2 INTENSITY IMAGES

Authors
SILVA, JA; CAMPILHO, AJC; DOSSANTOS, JCM;

Publication
VIDEOMETRICS II

Abstract

1992

REVERSIBLE METHODS FOR MEDICAL IMAGE COMPRESSION

Authors
MENDONCA, AM; CAMPILHO, AJC;

Publication
INNOVATION ET TECHNOLOGIE EN BIOLOGIE ET MEDECINE

Abstract

1992

DIGITAL IMAGE-PROCESSING - FUNDAMENTALS AND MICROCOMPUTER APPLICATIONS IN MEDICAL IMAGING

Authors
CAMPILHO, AJC; MENDONCA, AMRSF;

Publication
INNOVATION ET TECHNOLOGIE EN BIOLOGIE ET MEDECINE

Abstract

1992

SIGNAL-PROCESSING APPLIED TO THE STUDY OF ELECTROCHEMICAL PROPERTIES OF METALLIC BIOMATERIALS

Authors
GARRIDO, A; CAMPILHO, A; BARBOSA, MA;

Publication
BIOMATERIAL-TISSUE INTERFACES

Abstract