Pose-to-Motion: Cross-Domain Motion Retargeting
with Pose Prior
Creating believable motions for various characters has long been a goal in computer graphics. Current learning-based motion synthesis methods depend on extensive motion datasets, which are often challenging, if not impossible, to obtain. On the other hand, pose data is more accessible, since static posed characters are easier to create and can even be extracted from images using recent advancements in computer vision. In this paper, we utilize this alternative data source and introduce a neural motion synthesis approach through retargeting. Our method generates plausible motions for characters that have only pose data by transferring motion from an existing motion capture dataset of another character, which can have drastically different skeletons. Our experiments show that our method effectively combines the motion features of the source character with the pose features of the target character, and performs robustly with small or noisy pose data sets, ranging from a few artist-created poses to noisy poses estimated directly from images. Additionally, a conducted user study indicated that a majority of participants found our retargeted motion to be more enjoyable to watch, more lifelike in appearance, and exhibiting fewer artifacts.
Without considering motion prior knowledge may result in motion with excessive jitter and artifacts, such as foot sliding. Conversely, ignoring pose information, motion may appear smooth but poses can lack realism. Our approach aims to strike a balance, generating motion that is both smooth and characterized by realistic poses.
Additional Animation (through retargeting)
The website template was borrowed from Michaël Gharbi.