1.

Conference Proceedings
Conference Proceedings
1. Estimating soil moisture based on image processing technologies [5909-67]
Zheng, L. ; Li, M. ; Sun, J. ; Zhang, X. ; Zhao, P.
Pub. info.: Applications of digital image processing XXVIII : 2-4 August 2005, San Diego, California, USA.  pp.59091R-,  2005.  Bellingham, Wash., USA.  SPIE - The International Society of Optical Engineering
Title of ser.: Proceedings of SPIE - the International Society for Optical Engineering
Ser. no.: 5909
2.

Conference Proceedings
Conference Proceedings
2. Evaluation of soil fertility with spectrophotometer and spectroradiometer [588 1-17]
Zheng, L. ; Li, M. ; Sun, J. ; Zhang, X. ; Zhao, P.
Pub. info.: Infrared and photoelectronic imagers and detector devices : 31 July - 1 August 2005, San Diego, California, USA.  pp.58810J-,  2005.  Bellingham, Wash..  SPIE - The International Society of Optical Engineering
Title of ser.: Proceedings of SPIE - the International Society for Optical Engineering
Ser. no.: 5881