Same-parity fields are used to improve the accuracy of motion estimation. It estimates the motion by comparing the sum of absolute block difference(SAD) between 4 fields with the threshold of motion.
运动估计通过比较同极性场的像素块绝对值差和（SAD）与运动阈值实现运动估计，并且利用前一场的运动信息进行鲁棒性处理，提高运动检测的精度。
Two methods of initial estimates are proposed: (1) using real time image subtraction scheme and a micro motion compensation mechanism to take zero constantly as initial estimates;
对相关迭代算法中的初值估计问题进行了研究，提出两种初值估计方法：（1 ）利用“实时相减”和“精密调节”相结合的方法而获得零初值；
Two methods of initial estimates are proposed: (1) using real time image subtraction scheme and a micro motion compensation mechanism to take zero constantly as initial estimates;
对相关迭代算法中的初值估计问题进行了研究，提出两种初值估计方法：（1 ）利用“实时相减”和“精密调节”相结合的方法而获得零初值；
应用推荐