A hierarchical storage management (HSM) scheme for cost-effective on-line archival using lossy compression.
J Digit Imaging
; 14(1): 18-23, 2001 Mar.
Article
em En
| MEDLINE
| ID: mdl-11310911
ABSTRACT
A hierarchical storage management (HSM) scheme for cost-effective on-line archival of image data using lossy compression is described. This HSM scheme also provides an off-site tape backup mechanism and disaster recovery. The full-resolution image data are viewed originally for primary diagnosis, then losslessly compressed and sent off site to a tape backup archive. In addition, the original data are wavelet lossy compressed (at approximately 251 for computed radiography, 101 for computed tomography, and 51 for magnetic resonance) and stored on a large RAID device for maximum cost-effective, on-line storage and immediate retrieval of images for review and comparison. This HSM scheme provides a solution to 4 problems in image archiving, namely cost-effective on-line storage, disaster recovery of data, off-site tape backup for the legal record, and maximum intermediate storage and retrieval through the use of on-site lossy compression.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Dispositivos de Armazenamento Óptico
/
Sistemas de Informação em Radiologia
Idioma:
En
Ano de publicação:
2001
Tipo de documento:
Article