2023年底发布的svd(stabilityai/stable-video-diffusion-img2vid · Hugging Face)、EMU(https://ai.meta.com/blog/emu-text-to-video-generation-image-editing-research/)、i2vgen-xl(GitHub - ali-vilab/i2vgen-xl: Official repo for VGen: a holistic video generation ecosystem for video generation building on diffusion models) 等模型相比