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PIC: Revisiting INR for Image Coding with Fast Encoding and Sub-Millisecond Decoding

arXiv · AI, language, vision and robotics · article · Sep 8, 2026 · UTC

Implicit neural representation (INR) has achieved remarkable progress in novel view synthesis and image/video coding in recent years.Compared to conventional end-to-end image codecs, INR-based compressors demonstrate significant advantages in decoding complexity. However, their practical application has been hindered by the inferior encoding speed and underutilized decoding efficiency.In this work, we propose a feedforward INR image coding architecture, Practical INR Image Codec (PIC), that computes all the necessary information for INR network in a single forward pass, achieving an encoding s

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