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Improved Positional Encoding for Implicit Neural Representation based Compact Data Representation

10 November 2023
B. Damodaran
Francois Schnitzler
Anne Lambert
Pierre Hellier
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Abstract

Positional encodings are employed to capture the high frequency information of the encoded signals in implicit neural representation (INR). In this paper, we propose a novel positional encoding method which improves the reconstruction quality of the INR. The proposed embedding method is more advantageous for the compact data representation because it has a greater number of frequency basis than the existing methods. Our experiments shows that the proposed method achieves significant gain in the rate-distortion performance without introducing any additional complexity in the compression task and higher reconstruction quality in novel view synthesis.

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