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arXiv Computer Vision By Runyu Yang, Hyomin Choi, Fabien Racap\'e, Ivan V. Baji\'c

Inter-Frame Predictive Contour Coding for Semantic Map Compression

Read the original on arXiv Computer Vision →

The paper introduces an inter‑frame predictive contour coding framework for lossless compression of dynamic semantic maps. It predicts blob positions and label indices from a reference frame, then performs contour prediction using chain‑code units from the reference contours, and selects between intra and inter coding based on estimated coding cost. Experiments on the VSPW dataset show the method outperforms existing lossless semantic map compression techniques, achieving a 3.0% average bitrate reduction without a significant increase in encoding time.

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