S. Dutta Gupta is a professor in the Department of Agricultural and Food Engineering at the Indian Institute of Technology Kharagpur. Dr. Gupta has been engaged in teaching and research on plant tissue culture and biotechnology for more than 25 years. He is a pioneer in the application of imaging techniques in plant tissue culture system for noninvasive estimation of photosynthetic parameters. Dr. Dutta Gupta has received fellowships from various agencies and governments such as the USDA, Lockheed Martin, MHRD, INSA, CSIR, DST, Czech Academy of Sciences, and JSPS. He has published more than 100 scientific articles. Yasuomi Ibaraki is a professor in the Faculty of Agriculture at Yamaguchi University, Japan. Dr. Ibaraki has been involved in studies on image-analysis-based evaluation of plants in micropropagation and protected cultivation for more than 20 years. He has made significant contributions in the imaging of somatic embryos, suspension cultures, and plantlets. He also has made contributions to image-based estimation of leaf area index and light intensity distribution on canopy surfaces. Dr. Ibaraki holds a Japanese patent on a method for evaluating quality of plant cell suspension culture by image analysis.