Perancangan Sistem Generator Medan Magnet Berotasi dan Pengamatan Gerak Brown untuk Pengukuran Konstanta Difusi Microbead 1um, 3um, 5um berbasis SURF (Speeded-Up Robust Feature) dan RLOF (Robust Local Optical Flow) = System Design Rotating Magnetic Field Generator and Brownian Motion Observation for Measuring Diffusion Constant on 1μm, 3μm, 5μm Microbeads Using SURF (Speeded-Up Robust Feature) and RLOF (Robust Local Optical Flow)