An automated stand-alone in-field remote sensing system (SIRSS) for in-season crop monitoring

Haitao Xiang, Lei Tian

Research output: Contribution to journalArticle

Abstract

A stand-alone in field remote sensing system (SIRSS) with high spatial and temporal resolution was developed in this study. System control and image processing algorithms consisted of image acquisition control, camera parameter control, crop canopy reflectance calibration, image rectification, image background segmentation and vegetation indices map generation were developed and embedded in the SIRSS. The SIRSS is able to automatically capture multispectral images over a testing field at any predefined time points during the growing season and process captured images in real-time. This paper presents the SIRSS system design, image analysis procedures and determination of vegetation indices. In a validation experiment over an 8-plot corn field with three different nutrient treatments spanning the 2006 growing season, a total of 91 images were acquired and four different vegetation indices were derived from the images of each day. The largest differences of indices values among three treatments were indentified during the V6-V8 stages which implied this period could be the best time to detect variability caused by the nitrogen stress in the cornfield. The SIRSS has shown the potential of monitoring changes in vegetation status and condition.

Original languageEnglish (US)
Pages (from-to)1-8
Number of pages8
JournalComputers and Electronics in Agriculture
Volume78
Issue number1
DOIs
StatePublished - Aug 1 2011

Keywords

  • Image processing
  • Precision agriculture
  • Remote sensing
  • Temporal effects
  • Vegetation index

ASJC Scopus subject areas

  • Forestry
  • Agronomy and Crop Science
  • Computer Science Applications
  • Horticulture

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