10 فروردین 1403
مصطفي خجسته نژند

مصطفی خجسته نژند

مرتبه علمی: استادیار
نشانی: دانشگاه بناب، بزرگراه ولایت،بناب، ایران
تحصیلات: دکترای تخصصی / مهندسی مکانیک ماشینهای کشاورزی
تلفن: 041-37745000- 1500
دانشکده: دانشکده فنی و مهندسی
گروه: گروه مهندسی مکانیک

مشخصات پژوهش

عنوان
Estimating volume and mass of citrus fruits by image processing technique
نوع پژوهش مقاله چاپ شده
کلیدواژه‌ها
Citrus fruits Volume Mass Modeling Elliptical frustums Image processing
پژوهشگران محمود امید (نفر اول)، مصطفی خجسته نژند (نفر دوم)، احمد طباطبائی فر (نفر سوم)

چکیده

An image processing based technique was developed to measure volume and mass of citrus fruits such as lemons, limes, oranges, and tangerines. The technique uses two cameras to give perpendicular views of the fruit. An efficient algorithm was designed and implemented in Visual Basic (VB) language. The product volume was calculated by dividing the fruit image into a number of elementary elliptical frustums. The volume is calculated as the sum of the volumes of individual frustums using VB. The volumes computed showed good agreement with the actual volumes determined by water displacement method. The coefficient of determination (R2 ) for lemon, lime, orange, and tangerine were 0.962, 0.970, 0.985, and 0.959, respectively. The Bland–Altman 95% limits of agreement for comparison of volumes with the two methods were (1.62; 1.74), (7.20; 7.57), (6.54; 6.84), and (4.83; 6.15), respectively. The results indicated citrus fruit’s size has no effect on the accuracy of computed volume. The characterization results for various citrus fruits showed that the volume and mass are highly correlated. Hence, a simple procedure based on computed volume of assumed ellipsoidal shape was also proposed for estimating mass of citrus fruits. This information can be used to design and develop sizing systems.