Title :
Query by example in Earth-Observation image archive using data compression-based approach
Author :
Espinoza-Molina, D. ; Quartulli, M. ; Datcu, M.
Author_Institution :
German Aerosp. Center, Remote Sensing Technol. Inst., Wessling, Germany
Abstract :
This paper presents an implementation of query by example in Earth Observation image archive using data compression-based approach. Data compression approach allows to exploit the compression properties of the objects and to estimate the shared information between them, this concept is extended to image retrieval for finding similar objects in the image archive. Our implementation is based on LZW algorithm for compressing the image content and extracting features of the images. The fast compression distance (FCD) is defined as a similarity metric in order to retrieve the most similar images. This tool is satisfactory implemented and tested using optical and SAR images.
Keywords :
data compression; feature extraction; geophysical image processing; geophysical techniques; image coding; image retrieval; synthetic aperture radar; Earth Observation image archive; LZW algorithm; SAR images; compression properties; data compression-based approach; fast compression distance; feature extraction; image content; image retrieval; optical images; similarity metric; Dictionaries; Feature extraction; Image coding; Image retrieval; Measurement; Search engines; Content based image retrieval; High resolution optical and SAR; fast compression distance; image retrieval; query by example; similarity metrics;
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2012 IEEE International
Conference_Location :
Munich
Print_ISBN :
978-1-4673-1160-1
Electronic_ISBN :
2153-6996
DOI :
10.1109/IGARSS.2012.6352231
