Publica
Hier finden Sie wissenschaftliche Publikationen aus den FraunhoferInstituten. Effective compression algorithms for pulsed thermography data
 Maldague, X.P.V.: Advances in Signal Processing for Non Destructive Evaluation of Materials : Proceedings of the Vth International Workshop, Québec City (Canada), 24 Aug. 2005 Québec, 2006 ISBN: 298091990X S.1924 
 International Workshop on Advances in Signal Processing for Non Destructive Evaluation of Materials <5, 2005, Quebec> 

 Englisch 
 Konferenzbeitrag 
 Fraunhofer IZFP () 
 thermography; data compression; space/time mapping 
Abstract
Two compression algorithms for the image sequences generated by pulsedtransient thermography for nondestructive testing were developed. The first algorithm allows to balance the quality of the origninal measurement data reproduction against the compression ratio. This algrithm comprises a dedicated space/time mapping (STM) method and an image compression algorithm (JPEG2000). The second algorithm provides lossless reproduction of the original measurement data. This algorithm is based on a particular transformation of dynamically changing data and a lossless compression algorithm (ZIP). Both algorithms were tested on typical experimental thermography data. In both cases, the achieved compression ratios were significantly higher than those of existing algorithms.