Different analytical methods of plant's growth measurement

Growth analysis of stem variations information without interrupting natural growth of the crops is important for the water-saving irrigation. Three different approaches Illumination, Strain gauge and Image processing methods are applied to the growth data to model the growth of plant. In illumination method the imaging system uses a background illumination source to improve the quality of images of stems. The strain gauge is used as a sensor to detect the changes in micrometer for every 1μm changes. In Image processing Sobel Edge Detection is performed on a plant image to determine its height, maximum and minimum width.