Target Preserving Hyperspectral Image Compression Using Weighted PCA and JPEG2000

KARACA A. C., Gullu M. K.

8th International Conference on Image and Signal Processing (ICISP), Cherbourg, Fransa, 2 - 04 Temmuz 2018, cilt.10884, ss.508-516 identifier identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası: 10884
  • Doi Numarası: 10.1007/978-3-319-94211-7_55
  • Basıldığı Şehir: Cherbourg
  • Basıldığı Ülke: Fransa
  • Sayfa Sayıları: ss.508-516
  • Anahtar Kelimeler: Hyperspectral image compression, Target preserving compression, Weighted principal component analysis
  • Yıldız Teknik Üniversitesi Adresli: Hayır

Özet

Lossy compression methods can significantly reduce the volume of hyperspectral images. Besides that, target detection performance degrades dramatically at lower bit-rates. In this paper, we propose a target preserving compression method for low bit-rates. The proposed method consists of three parts. In the first part, a target detection algorithm is performed on hyperspectral image. Afterwards, a weight matrix is generated using output of the target detection. Finally, Weighted Principal Component Analysis (WPCA) and JPEG2000 methods are executed sequentially. Two different approaches are proposed for weight matrix generation and the proposed approaches are compared with PCA+JPEG2000 and SubPCA+ JPEG2000 methods in terms of signal-to-noise ratio (SNR), receiver operating characteristic (ROC) curves and average mean square error. Experimental results demonstrate that WPCA+JPEG2000 provides significantly better target detection performance than other methods especially at low bit-rates.