通过一定数量的已知点坐标，用后方交会的方法计算相片的外方位元素-Through a number of known point coordinate calculation photos exterior orientation elements method with Resection

这是一个简单易懂的crc计算方法,选择你要计算的文件,准确计算crc值,-This is a simple calculation method of the CRC, choose the file you want to calculate, the accurate calculation of CRC value,