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Jussi Keppo

7 accepted papers

2024

DynVideo-E: Harnessing Dynamic NeRF for Large-Scale Motion- and View-Change Human-Centric Video Editing

CVPR 2024poster

Despite recent progress in diffusion-based video editing existing methods are limited to short-length videos due to the contradiction between long-range consistency and frame-wise editing. Prior attempts to address this challenge by introducing video-2D representations encounter significant difficul…

2024

Exocentric-to-Egocentric Video Generation

NeurIPS 2024poster

We introduce Exo2Ego-V, a novel exocentric-to-egocentric diffusion-based video generation method for daily-life skilled human activities where sparse 4-view exocentric viewpoints are configured 360° around the scene. This task is particularly challenging due to the significant variations between exo…

2024

MotionDirector: Motion Customization of Text-to-Video Diffusion Models

ECCV 2024oral

"Large-scale pre-trained diffusion models have exhibited remarkable capabilities in diverse video generations. Given a set of video clips of the same motion concept, the task of Motion Customization is to adapt existing text-to-video diffusion models to generate videos with this motion. Adaptation m…

2024

X-Adapter: Adding Universal Compatibility of Plugins for Upgraded Diffusion Model

CVPR 2024poster

We introduce X-Adapter a universal upgrader to enable the pretrained plug-and-play modules (e.g. ControlNet LoRA) to work directly with the upgraded text-to-image diffusion model (e.g. SDXL) without further retraining. We achieve this goal by training an additional network to control the frozen upgr…

2023

HOSNeRF: Dynamic Human-Object-Scene Neural Radiance Fields from a Single Video

ICCV 2023poster

We introduce HOSNeRF, a novel 360deg free-viewpoint rendering method that reconstructs neural radiance fields for dynamic human-object-scene from a single monocular in-the-wild video. Our method enables pausing the video at any frame and rendering all scene details (dynamic humans, objects, and back…

Cited by 31PDFcodeScholar
2023

STPrivacy: Spatio-Temporal Privacy-Preserving Action Recognition

ICCV 2023poster

Existing methods of privacy-preserving action recognition (PPAR) mainly focus on frame-level (spatial) privacy removal through 2D CNNs. Unfortunately, they have two major drawbacks. First, they may compromise temporal dynamics in input videos, which are critical for accurate action recognition. Seco…

Cited by 24PDFScholar
2022

DeVRF: Fast Deformable Voxel Radiance Fields for Dynamic Scenes

NeurIPS 2022accept

Modeling dynamic scenes is important for many applications such as virtual reality and telepresence. Despite achieving unprecedented fidelity for novel view synthesis in dynamic scenes, existing methods based on Neural Radiance Fields (NeRF) suffer from slow convergence (i.e., model training time me…