The identification of common edible shellfishs

• Main Author: 鄭朝允
• Other Authors: 葉榮木
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/86867279410532563625

碩士 === 國立臺灣師範大學 === 機電科技學系 === 101 === Food is the first necessity of the people. I believe that everyone has the experience of eating stir-fry or seafood, especially clam as a common ingredient of seafood cuisine. Some people like playing with its shell, while some others like collecting. Ordinary people generally don’t know much about shellfish, and it takes too much time to find information from books or the internet. Therefore, a perfect system for accurate identification can not only provide quick query of shell kinds, but can also reduce manpower in identification. This study focused on the research and identification of 44 kinds of edible shellfish recorded on the website of Digital Taiwan – Culture &; Nature. The best result of this study was experiment E: first, input the image of shellfish; second, convert the image into grayscale image; third, perform Fast Fourier Transform with the grayscale image; fourth, choose the low frequencies at four corners, which were 7×7 matrixes; finally, get the result of shellfish identification through SVM classification. The accuracy could reach 100% and the average time spent on identifying a shellfish image was about 0.044s.