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cross-posted from: https://lemmy.ml/post/20589085

Abstract

We propose the first video diffusion framework for reference-based lineart video colorization. Unlike previous works that rely solely on image generative models to colorize lineart frame by frame, our approach leverages a large-scale pretrained video diffusion model to generate colorized animation videos. This approach leads to more temporally consistent results and is better equipped to handle large motions. Firstly, we introduce Sketch-guided ControlNet which provides additional control to finetune an image-to-video diffusion model for controllable video synthesis, enabling the generation of animation videos conditioned on lineart. We then propose Reference Attention to facilitate the transfer of colors from the reference frame to other frames containing fast and expansive motions. Finally, we present a novel scheme for sequential sampling, incorporating the Overlapped Blending Module and Prev-Reference Attention, to extend the video diffusion model beyond its original fixed-length limitation for long video colorization. Both qualitative and quantitative results demonstrate that our method significantly outperforms state-of-the-art techniques in terms of frame and video quality, as well as temporal consistency. Moreover, our method is capable of generating high-quality, long temporal-consistent animation videos with large motions, which is not achievable in previous works. Our code and model are available at this https URL.

Paper: https://arxiv.org/abs/2409.12960

Project Page: https://luckyhzt.github.io/lvcd

Code: (coming soon)

Supplementary Demo clips: https://luckyhzt.github.io/lvcd/supplementary/supplementary.html

US Theatrical Release Date: Sep 20, 2024

Synopsis: The untold origin story of Optimus Prime and Megatron, better known as sworn enemies, but once were friends bonded like brothers who changed the fate of Cybertron forever.

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cross-posted from: https://lemmy.world/post/19973017

Tomb Raider: The Legend of Lara Croft, set after the events of the Tomb Raider Survivor Trilogy video games, is coming to Netflix on October 10.

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