You see, most cameras record images one row at a time, and so if an object moves during the recording of a single image, there's a slight time delay between each row, and this causes slight artifacts that get coded into each frame of a video.
Kebanyakan kamera merekam gambar per baris, jadi jika objeknya bergerak saat gambar diambil, ada penundaan waktu rekam antara setiap baris rekaman, yang akan menimbulkan sedikit kesalahan gambar yang akan terekam pada setiap frame video.