# Single Image Animation


Research on how to create animations from a single image.
Most existing work here is focused on transfering an animation from a video or collection of videos onto an image.

## Fluids

Animating Fluids

### Creating Fluid Animation from a Single Image using Video Database

• Published in Computer Graphics Forum 2011
• Authors: Makoto Okabe, Ken Anjyo, Rikio Onai
• https://onlinelibrary.wiley.com/doi/full/10.1111/j.1467-8659.2011.02062.x
• Basic Idea
• Create database of one type of fluid (fire, smoke, water)
• Database is composed of (average image + differences) of video patches and indexed with visual words (SIFT).
• Given a new image of a fluid, cut it up into pieces.
• For each piece, find a video from the database. Combine the differences from the database with the image to form an animation. Lots of small details in the paper...
• User can draw a flow field and apply a mask. The flow field influences which video is selected from the database.

## Animals

### Animating Animal Motion from Still

• Siggraph Asia 2008
• Authors: Xuemiao Xu, Liang Wan, Xiaopei Liu, Tien-Tsin Wong, Liansheng Wang, Chi-Sing Leung
• https://www.cse.cuhk.edu.hk/~ttwong/papers/flock/flock.html
• Basic Idea
• Given a photo with multiple of the same animal
• Crop each animal to get a set of "motion snapshots"
• Using some structural similarity measures, order the motion snapshots to create a motion cycle
• Do consistency refinement to morph between snapshots.