... DEVELOPMENT, EVALUATION AND OPTIMIZATION OF IMAGE BASED METHODS FOR MONITORING CRYSTALLIZATION PROCESSES ZHOU YING (M.Sc., National University of Singapore, B.Eng., Dalian University of Technology, ... Steps in image analysis of silica gel PVM image 59 Figure 3.10 Steps in image analysis of sea sand PVM image - 60 ix Figure 3.11 Steps in image analysis of sea salt PVM image ... specification of product quality in crystallization process, summarizes current in-situ instruments for crystallization process monitoring and control, and reviews the current state of the image- based...