Visualization of hyperspectral images using bilateral filtering with spectral angles

Jai-Hoon Lee; Ayoung Heo; Won-Chul Choi; Seo Hyun Kim; Dong-Jo Park

doi:10.1117/12.883867

5 May 2011 Visualization of hyperspectral images using bilateral filtering with spectral angles

Jai-Hoon Lee, Ayoung Heo, Won-Chul Choi, Seo Hyun Kim, Dong-Jo Park

Proceedings Volume 8050, Signal Processing, Sensor Fusion, and Target Recognition XX; 80501X (2011) https://doi.org/10.1117/12.883867
Event: SPIE Defense, Security, and Sensing, 2011, Orlando, Florida, United States

Abstract

This paper presents an extended bilateral filter with spectral angles and a visualization scheme for hyperspectral image data. The conventional bilateral filter used to be implemented using a position vector and a luminance value at each pixel in the scene. Since hyperspectral image data can provide a spectrum vector that has hundreds of bands at each pixel, we propose an extended bilateral filter using spectral angles. The proposed bilateral filter can be used for extracting and preserving the spectrum edges of the hyperspectral image. A visualization scheme for hyperspectral images exploiting the proposed bilateral filter has been also proposed. When objects that have the similar tristimulus intensity but different spectrums are mixed, they can be separated through the proposed visualization scheme. The resulting images show that the proposed scheme facilitates anomaly detection in the hyperspectral scenes.

Citation Download Citation

Jai-Hoon Lee, Ayoung Heo, Won-Chul Choi, Seo Hyun Kim, and Dong-Jo Park "Visualization of hyperspectral images using bilateral filtering with spectral angles", Proc. SPIE 8050, Signal Processing, Sensor Fusion, and Target Recognition XX, 80501X (5 May 2011); https://doi.org/10.1117/12.883867

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