Study on bacterium body shape inspection based on image processing for monitoring and controlling fermentation process of branched chain amino acid

In this paper, a novel method of inspecting bacterium body shapes based on image processing is proposed for monitoring and controlling the fermentation process of branch chain amino acid (BCAA). The proposed inspection algorithm is independent to a bacterium´s direction and imaging scale by using base orientation and relative coding. Two relative codes are defined to describe the shapes of bacterium bodies. The inspection algorithm is proposed based on analyzing the properties of bacterium body shapes. To verify the proposed method, experiments are conducted to inspect bacterium body shapes during the fermentation process of L-valine, one kind of BCAA. Experiment results show the reliability and feasibility of proposed method.