The aim of this work is to provide current oil and gas industries with a method to determine the placement of visual detectors for processing plant such as petrochemical plant. Nowadays industries practices are replacing conventional IR and UV detector with more advanced visual fire detector, which are less prone to false alarm, and having similar properties as CCTV camera. Development of the proposed method will follow the conventional protocol of fire detector mapping used by oil and gas industry. Several restriction and limitation have been stated to narrow down the scope to provide more applicable solution. By using multiple views, the proposed method is able to estimate the optimal placement of detector as similar to 3D methods. © 2012 IEEE.