# Responsive Action-based Video Synthesis

## TL;DR

This paper introduces an interactive system for creating and editing videos by converting static-camera footage into loopable sequences, allowing users to easily synthesize and manipulate video content with semantic-level control.

## Contribution

It presents an end-to-end human-in-the-loop framework for converting videos into reusable, loopable segments, enabling intuitive and iterative video synthesis and editing.

## Key findings

- User interface facilitates creative control over video synthesis.
- Artists successfully used trigger interfaces for video authoring.
- System enables previewing and easy iteration of synthesized videos.

## Abstract

We propose technology to enable a new medium of expression, where video elements can be looped, merged, and triggered, interactively. Like audio, video is easy to sample from the real world but hard to segment into clean reusable elements. Reusing a video clip means non-linear editing and compositing with novel footage. The new context dictates how carefully a clip must be prepared, so our end-to-end approach enables previewing and easy iteration. We convert static-camera videos into loopable sequences, synthesizing them in response to simple end-user requests. This is hard because a) users want essentially semantic-level control over the synthesized video content, and b) automatic loop-finding is brittle and leaves users limited opportunity to work through problems. We propose a human-in-the-loop system where adding effort gives the user progressively more creative control. Artists help us evaluate how our trigger interfaces can be used for authoring of videos and video-performances.