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240216s2024 xx |||||o 00| ||eng c |
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|a 10.1109/TPAMI.2024.3366237
|2 doi
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|a eng
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| 100 |
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|a Zhu, Hao
|e verfasserin
|4 aut
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| 245 |
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|a Disorder-Invariant Implicit Neural Representation
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|c 2024
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|a Text
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|a Date Revised 03.07.2024
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Implicit neural representation (INR) characterizes the attributes of a signal as a function of corresponding coordinates which emerges as a sharp weapon for solving inverse problems. However, the expressive power of INR is limited by the spectral bias in the network training. In this paper, we find that such a frequency-related problem could be greatly solved by re-arranging the coordinates of the input signal, for which we propose the disorder-invariant implicit neural representation (DINER) by augmenting a hash-table to a traditional INR backbone. Given discrete signals sharing the same histogram of attributes and different arrangement orders, the hash-table could project the coordinates into the same distribution for which the mapped signal can be better modeled using the subsequent INR network, leading to significantly alleviated spectral bias. Furthermore, the expressive power of the DINER is determined by the width of the hash-table. Different width corresponds to different geometrical elements in the attribute space, e.g., 1D curve, 2D curved-plane and 3D curved-volume when the width is set as 1, 2 and 3, respectively. More covered areas of the geometrical elements result in stronger expressive power. Experiments not only reveal the generalization of the DINER for different INR backbones (MLP versus SIREN) and various tasks (image/video representation, phase retrieval, refractive index recovery, and neural radiance field optimization) but also show the superiority over the state-of-the-art algorithms both in quality and speed
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|a Journal Article
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| 700 |
1 |
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|a Xie, Shaowen
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Liu, Zhen
|e verfasserin
|4 aut
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| 700 |
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|a Liu, Fengyi
|e verfasserin
|4 aut
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| 700 |
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|a Zhang, Qi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhou, You
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Lin, Yi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ma, Zhan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Cao, Xun
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t IEEE transactions on pattern analysis and machine intelligence
|d 1979
|g 46(2024), 8 vom: 14. Juli, Seite 5463-5478
|w (DE-627)NLM098212257
|x 1939-3539
|7 nnns
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|g volume:46
|g year:2024
|g number:8
|g day:14
|g month:07
|g pages:5463-5478
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|u http://dx.doi.org/10.1109/TPAMI.2024.3366237
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