Judul: Ekstraksi Fitur Bentuk dan Venasi Citra Daun dengan Pemodelan Fourier dan B-Spline
Abstrak: Leaf features extraction on plant leaf image is still be a problem on automatic plant leaf identification. Shape and venation of leaf are a significant part of leaf for distinguishing a species of leaf from each other. Shape feature extraction with Hough transform and Fourier descriptor were implemented and their effectiveness on leaf shape recognition were compared. Effectiveness of both shape recognition methods were evaluated by recall-precision measurement. Recall-precision evaluation showed that leaf shape represented by Fourier descriptors is more effective than represented by Hough transform. Plant leaf image vein extraction using b-spline representation was implemented. An automatic initialitation of vein search parameter using Standard I-Iough Transform was proposed.
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Judul: Shape and Vein Extraction on Plant Leaf Images with Fourier and B-Spline Modeling.
Abstrak: Leaf features extraction on plant leaf image is still be a problem on automatic plant leaf identification. Shape and venation of leaf are a significant part of leaf for distinguishing a species of leaf from each other. Shape feature extraction with Hough transform and Fourier descriptor were implemented and their effectiveness on leaf shape recognition were compared. Effectiveness of both shape recognition methods were evaluated by recall-precision measurement. Recall-precision evaluation showed that leaf shape represented by Fourier descriptors is more effective than represented by Hough transform. Plant leaf image vein extraction using b–spline representation was implemented. An automatic initialitation of vein search parameter using Standard Hough Transform was proposed. Keywords: leaf shape extraction, leaf vein extraction, fourier descriptor, b-spline.
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Judul: Enteric Collibacillosis Pada Anak Babi Baru Lahir: Patogenesa dan Perubahan-Perubahan Patologisnya
Abstrak: Diare disebabkan oleh infeksi bakteri Escherichia coli pada anak-anak babi baru lahir yang peka terhadap en terotoksin produk bakteri tersebut. Dikenal sebagai colibacillosis. Patogenesa dari colibacillosis anak babi baru lahir adalah (1) infeksi oleh E. coli patogen, (2) proliferasi E. coli di lumen usus halus, (3) produksi dan pelepasan enterotoksin, dan (4) aktifitas toksin pada usus halus. Dalam proses proliferasi, adanya antigen pili K88 sangat penting karena memungkinkan bakteri perlekatan dengan epitel mucosa usus halus. mengadakan Setelah ko lonisasi dan proliferasi segera toksin dilepaskan. Akti- fitas toksin menginduksi sekresi yang berlebihan dari u- sus sehingga banyak cairan yang dikeluarkan ke lumen usus. Hal ini mengakibatkan banyak cairan dan elektrolit hilang sehingga timbul diare, dehidrasi dan asidosis yang sering menyebabkan kematian. Perubahan-perubahan patologis yang umum adalah dis tensi usus halus, dilatasi lambung dan infark pada kurva- tura mayor. Perubahan-perubahan histologis yang terjadi adalah enteritis hemorrhagica acuta, oedem dan kongesti pembuluh darah di lamina propria, akumulassi leukosit inti polimorf, sel monosit, dan inti sel mengalami piknosis Thrombus pada vena dan degenerasi serta desquamasi sel epitel usus….
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