Image acquisition system plays an important role in the validation and testing phase of the early development stage of infrared Time Delay Integration(TDI) cameras. An image acquisition system based on PXI hardware platform and Lab VIEW software platform is introduced in this paper. The system, adopting multi-thread and modular design, has the capability of high speed data acquisition and data processing. Experiments show that the system can achieve a data acquisition rate up to 120 Mbps, and can process an...