arXiv Computer Vision By Yusung Choi

ImCorr: Sub-pixel Semantic Correspondence via Implicit Feature Decoding

Read the original on arXiv Computer Vision →

The paper introduces ImCorr, a method for sub‑pixel semantic correspondence that uses an implicit feature field to eliminate grid‑based quantization errors inherent in patch‑based vision transformers. By training a FiLM‑conditioned decoder to embed precise positional information, ImCorr queries continuous coordinates on the source side and decodes onto a denser grid on the target side, thereby reducing representation‑level errors. Experiments on SPair‑71k and AP‑10K show significant gains at fine‑grained thresholds, with a 6.2‑point improvement at PCK@0.01 over the previous state of the art.

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