Some Experiments In Compressing Angiocardiographic Images According To the Peano-hilbert Scan Path

Pinciroli, F.; Combi, Carlo; Pozzi, G.; Portoni, L.; Negretto, M.; Invernizzi, G.

doi:10.1016/0169-2607(94)90076-0

We defined and implemented three new irreversible compression techniques for digital angiocardiographic static images: brightness error limitation (BEL), pseudo-gradient adaptive brightness error limitation (PABEL), pseudo-gradient adaptive brightness and contrast error limitation (PABCEL). To scan digital images we implemented an algorithm based on the Peano-Hilbert plane filling curve. We applied our compression techniques to 168 static images selected from angiocardiographic 35-mm films. We achieved best compression results applying the PABCEL method, obtaining a mean compression ratio of about 8:1. Consulted cardiologists did not find significant diagnostic differences between original images and reconstructed ones.

Titolo:	Some Experiments In Compressing Angiocardiographic Images According To the Peano-hilbert Scan Path
Autori:	F. PINCIROLI COMBI, Carlo G. POZZI L. PORTONI M. NEGRETTO G. INVERNIZZI mostra contributor esterni nascondi contributor esterni
Data di pubblicazione:	1994
Rivista:	COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE
Abstract:	We defined and implemented three new irreversible compression techniques for digital angiocardiographic static images: brightness error limitation (BEL), pseudo-gradient adaptive brightness error limitation (PABEL), pseudo-gradient adaptive brightness and contrast error limitation (PABCEL). To scan digital images we implemented an algorithm based on the Peano-Hilbert plane filling curve. We applied our compression techniques to 168 static images selected from angiocardiographic 35-mm films. We achieved best compression results applying the PABCEL method, obtaining a mean compression ratio of about 8:1. Consulted cardiologists did not find significant diagnostic differences between original images and reconstructed ones.
Handle:	http://hdl.handle.net/11562/430235
Appare nelle tipologie:	01.01 Articolo in Rivista

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