hzwer (Megvii research) · Frame interpolation model

RIFE (Real-Time Intermediate Flow Estimation for Video Frame Interpolation)

RIFE is the ECCV 2022 implementation of a real-time video frame interpolation model, published by hzwer. The README says it runs at 30+ FPS for 2X 720p interpolation on a 2080Ti GPU and supports arbitrary-timestep interpolation between a pair of images. Reported benchmark results include PSNR 35.282 / SSIM 0.9688 on UCF101, PSNR 35.615 / SSIM 0.9779 on Vimeo90K, IE 1.956 on MiddleBury Other and PSNR 32.14 on HD. The repository provides command-line scripts for video and image interpolation, a Docker setup, evaluation scripts and training code. The README also notes that the 4.22.lite model from the related Practical-RIFE project suits post-processing of some diffusion-generated videos. Released under the MIT licence with about 5,670 stars; the last push was 10 September 2025 and the listed release is arxiv_v5_code (13 August 2021).