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專利授權區
專利名稱(英)	GREEN COFFEE BEAN IDENTIFICATION METHOD AND GREEN COFFEE BEAN IDENTIFICATION SYSTEM
專利家族	中華民國：I818865 美國：US-2024-0265517-A1(公開號)
專利權人	國立清華大學 100%
發明人	蔡志強,譚書旻,洪士薰
技術領域	資訊工程

專利摘要(英)
A green coffee bean identification method includes obtaining an image of a green coffee bean by an image capture device, wherein the image includes pixels; reading an average value weight, a standard deviation weight, and a threshold value corresponding to the origin or the variety of green coffee beans from a memory; extracting three primary color grayscale values for each pixel from the image; calculating the average values and the standard deviations corresponding to the green coffee bean according to the approximate normal distributions of the three primary color grayscale value distributions; and respectively multiplying the average value and the standard deviation by the average value weight and the standard deviation weight to be then added together to calculate the total scoring value, wherein when the total scoring value is less than (respectively larger than) the threshold value, the green coffee bean is identified as a qualified (respectively defective) bean.

專利摘要(英)

A green coffee bean identification method includes obtaining an image of a green coffee bean by an image capture device, wherein the image includes pixels; reading an average value weight, a standard deviation weight, and a threshold value corresponding to the origin or the variety of green coffee beans from a memory; extracting three primary color grayscale values for each pixel from the image; calculating the average values and the standard deviations corresponding to the green coffee bean according to the approximate normal distributions of the three primary color grayscale value distributions; and respectively multiplying the average value and the standard deviation by the average value weight and the standard deviation weight to be then added together to calculate the total scoring value, wherein when the total scoring value is less than (respectively larger than) the threshold value, the green coffee bean is identified as a qualified (respectively defective) bean.

聯絡資訊
承辦人姓名	李佳玲
承辦人電話	03-5715131 #62300
承辦人Email	cl.lee@mx.nthu.edu.tw