FPGA-based Real-Time Super-Resolution System for Ultra High Definition Videos

The market benefits from a barrage of Ultra High Definition (Ultra-HD) displays, yet most extant cameras are barely equipped with Full-HD video capturing. In order to upgrade existing videos without extra storage costs, we propose an FPGA-based super-resolution system that enables real-time Ultra-HD upscaling in high quality. Our super-resolution system crops each frame into blocks, measures their total variation values, and dispatches them accordingly to a neural network or an interpolation module for upscaling. This approach balances the FPGA resource utilization, the attainable frame rate, and the image quality. Evaluations demonstrate that the proposed system achieves superior performance in both throughput and reconstruction quality, comparing to current approaches.