针对在多时相遥感影像变化检测中常规阈值确定方法无法获取小比例变化量区域准确变化阈值， 并导致变化检测失败的问题，提出了采用独立阈值的遥感影像变化检测算法-Exact change threshold for the detection of multi-temporal remote sensing image change the conventional method of determining the threshold can not get a small percentage