The jitter of remote sensor during exercise will cause the image position shift. To settle this problem, a realtime image correction algorithm is proposed. However, the design of algorithm by using HDL has great difficulty and it leads to long development cycle. Therefore, the design of algorithm is achieved by adopting C language. Then the abstract C algorithm is translated to RLT code by means of Calypto’s Catapult C Synthesis tools. Furthermore, a cosimulation test of C/C++ and RLT is carried out in Catapult C Synthesis tools. It’s also verified in the platform of XC5VLX110T. The results of Simulation test and hardware verification show that the algorithm designed by applying Catapult C Synthesis tools can meet the design requirements both in timing and performance. And it can correct the shifted image in realtime.