A research on object-based system for fractal video compression
Zaikuo Wang · Journal of Optoelectronics·laser · 2010
Based on the classical fractal video compression method,an improved method is proposed,which uses more effective macroblock partition scheme instead of classical quadtree partition scheme;reduces the block searching strategy and range,thus increases the calculation speed greatly;uses homo-I-frame like in H.264;and reduces the repeating calculation,etc.And a new method of object-based fractal video coding is proposed in this paper,each object can be encoded and decoded independently,which results in increasing compression ratio and speed and reducing bit rate and bandwidth when transmitting compressed video data greatly.Experimental results indicate that the proposed method can raise compression ratio 4 times,speed up compression time 10 times,and improve the image quality 3 to 5 dB,the proposed object-based method improves the performances of fractal video coding algorithm obviously.The proposed object-based fractal video coding method which can increase compression ratio and speed greatly is simple and effective,and adds more flexibility and practicability of fractal video coding applications.