기본 콘텐츠로 건너뛰기

5th week of Jan

Banskota, A., Wynne, R. H., Thomas, V. A., Serbin, S. P., Kayastha, N., Gastellu-Etchegorry, J. P., & Townsend, P. A. (2013). Investigating the utility of wavelet transforms for inverting a 3-D radiative transfer model using hyperspectral data to retrieve forest LAI. Remote Sensing5(6), 2639-2659.
Continuum wavelength transformation is similar to CNN in deep learning. Pooling layer of CNN adjusts the resolution of 2D image. On the image, we see objects ranging from infinitesimal one to broad one. CNN imitates how human being sees. Similarly, CWT well captures signals from microscopic signal, Chlorophyll, to wide signal, such as LMA and water.

댓글

이 블로그의 인기 게시물

4th week of june

Asner, G. P., Martin, R. E., Anderson, C. B., & Knapp, D. E. (2015). Quantifying forest canopy traits: Imaging spectroscopy versus field survey.  Remote Sensing of Environment ,  158 , 15-27. They use canopy sunlit reflectance at plot level and the trait samples from sunlit. The plot averaged refletance minimize canopy architectural effect. However actual field samples cover only 5% of a plot, the plot reflectance well explains canopy traits.

AGU 2019

2nd Week of August

Schaepman-Strub, Gabriela, et al. Reflectance quantities in optical remote sensing—Definitions and case studies. Remote sensing of environment 103.1 (2006) 27-42. If a surface was not an ideal specular or diffuse surface, one could observe diffuse light as well as specular light reflected off the surface. Reflectance is affected by where the incident light comes from and where the light is observed, which is represented by an angular distribution function. So different reflectance concepts are possible, so it is needed to use the term reflectance practically.