Hyperspectral image segmentation using a new spectral mixture-based binary partition tree representation

Miguel Angel Veganzones (1) , Guillaume Tochon (1) , Mauro Dalla Mura (1) , Antonio Plaza (2) , Jocelyn Chanussot (3, 1)

1 GIPSA-SIGMAPHY - GIPSA - Signal Images Physique
2 Hyperspectral Computing Laboratory (Caceres, Spain)
3 University of Iceland [Reykjavik]

The Binary Partition Tree (BPT) is a hierarchical region-based representation of an image in a tree structure. BPT allows users to explore the image at different segmentation scales, from fine partitions close to the leaves to coarser partitions close to the root. Often, the tree is pruned so the leaves of the resulting pruned tree conform an optimal partition given some optimality criterion. Here, we propose a novel BPT construction approach and pruning strategy for hyperspectral images based on spectral unmixing concepts. The proposed methodology exploits the local unmixing of the regions to find the partition achieving a global minimum reconstruction error. We successfully tested the proposed approach on the well-known Cuprite hyperspectral image collected by NASA Jet Propulsion Laboratory's Airborne Visible/Infrared Imaging Spectrometer (AVIRIS). This scene is considered as a standard benchmark to validate spectral unmixing algorithms.

Mots clés: segmentation; spectral unmixing; hyperspectral images; Binary Partition Trees

Domaines: Traitement du signal et de l'image [eess.SP]; Traitement du signal et de l'image [eess.SP]

Miguel Angel Veganzones, Guillaume Tochon, Mauro Dalla Mura, Antonio Plaza, Jocelyn Chanussot. Hyperspectral image segmentation using a new spectral mixture-based binary partition tree representation. ICIP 2013 - 20th IEEE International Conference on Image Processing, Sep 2013, Melbourne, Australia. pp.245-249, ⟨10.1109/ICIP.2013.6738051⟩. ⟨hal-01010351⟩