Computer Vision Application in Measuring Fish Length

This paper demonstrates the application of computer vision in marine technology, vis-a-vis, producing a 3D model from the fish image data. In many parts of the world, especially in Malaysia, measuring the fish length helps identify the fish species population for the purpose of fish reproduction, recruitment, growth and mortality study. The current method of fish length measurement requires measuring of each fish physically using one of the traditional measuring tools like a measuring tape. The main disadvantage of this method is its time consuming, costly and inaccurate. This paper presents a new method for measuring fish length using camera vision technology. In this method, we used different types of camera to produce digital images as input data for identifying the length of fish and using Hsu’s Method for more detailed analysis in the study. The results of this experiment will define a new method of fish measurement using computer vision.