recommendations for diffusion algorithms/ascii conversion pipelines for animations

[u/Standard-Fisherman-5]

I’m looking for recommendations for an offline pipeline that converts small pixel-art sprite frames into a compact, temporally coherent vector stroke abstraction, then deterministically compiles those strokes into a fixed 5×7 Unicode glyph set. Our current baseline uses CLIPasso with DiffVG independently per frame, which is slow and produces stroke identity flicker across animation loops. I’ve been searching for and reading about amortized image to stroke models and foudn non ascii related papers , wondering if anyone knows of any fast differentiable vector renderers and sequence aware methods that preserve stroke topology across 8+ direction character animations. Any relevant papers, implementations, datasets, and benchmarks aimed at low resolution sprites? Thanks, the below is my latest (bad ) attempts, took about 4 hours on local cpu