Identification of aquarium fish using histogram of oriented gradient / 方向梯度直方圖特徵提取之觀賞魚自動辨識

碩士 / 輔仁大學 / 資訊工程學系碩士班 / 106 / There are numerous kinds of ornamental fish; I have always wondered the species of fish although I have the habit of fishkeeping for years. In general, the features, sizes, and the colors are the key factors to distinguish fish species; therefore, I have developed a user-friendly system to distinguish fish species. This research uses the image processing technique to progress the images of fish, applies the Histogram of Oriented Gradient to extract the features, and further uses the Support Vector Machine to classify the systems. Indeed, the prototype faced some challenges, for instance, the background of the photo was too complicated, and the pattern of fish was not clear enough for the system to process and distinguish. Hence, we use the online Background Burner for complicated photo background, which saves time and enhances the image recognition. On the other hand, we use the exponential transformation method to improve the image contrast, which significantly increases the patterns of the ornamental fish. As a result, the enhancements successfully raise the distinguish rate to about 90%, which is much more accurate than other ornamental fish distinguish systems.

Identiferoai:union.ndltd.org:TW/106FJU00396035
Date January 2018
CreatorsKUO CHEN-WEI, 郭 振韋
ContributorsKUO,WEN-YAN, 郭文彥
Source SetsNational Digital Library of Theses and Dissertations in Taiwan
Languagezh-TW
Detected LanguageEnglish
Type學位論文 ; thesis
Format32

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