TimeColor: Flexible Reference Colorization via Temporal Concatenation

ArXi:2601.00296v2 Announce Type: replace Most colorization models condition only on a single reference, typically the first frame of the scene. However, this approach ignores other sources of conditional data, such as character sheets, background images, or arbitrary colorized frames. We propose TimeColor, a sketch-based video colorization model that s heterogeneous, variable-count references with the use of explicit per-reference region assignment.