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---
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license: mit
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task_categories:
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- audio-to-audio
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language:
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- en
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---
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# Dataset Card for LenslessMic Version of N(0,1) Random Dataset
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## Dataset Summary
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A LenslessMic version of the N(0,1) random images dataset from the
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["LenslessMic: Audio Encryption and Authentication via Lensless Computational Imaging"](https://arxiv.org/abs/2509.16418) paper.
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The dataset can be used to train a codec-agnostic reconstruction algorithm.
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| Partition | # Audio | # Frames |
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|--------------|---------|----------|
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| train | 200 | 30000 |
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**Note**: We split dataset into 200 files, however, there are no actual audio files. Only frames are used.
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To download the dataset and work with it, use our [official repository](https://github.com/Blinorot/LenslessMic).
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Dataset is collected using [DigiCam](https://arxiv.org/abs/2502.01102). Setup configuration:
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| Parameter | Value |
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|-------------------------------------------|--------------------|
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| Screen Size | [1920, 1200] |
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| Screen Pixel-Pitch | 0.27 mm |
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| Screen-To-Mask Distance | 30e-2 m |
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| Sensor Size | [4056, 3040] |
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| Sensor Size Downsample Coefficient | 8 |
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| Sensor Pixel-Pitch | 1.55 Γ 10β»βΆ m |
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| Mask-To-Sensor Distance | β 4e-3 m |
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| Image size on the Screen (256 case) | 928 Γ 928 |
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| Image size on the Screen (288 case) | 1044 Γ 1044 |
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| Vertical Shift on the Screen (256 case) | -23 |
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| Vertical Shift on the Screen (288 case) | -20 |
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| Number of masks | 100 |
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| Mask Aperture Shape (for 1/3 channels) | [18, 24] |
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| Mask Center | [55, 77] |
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For other configuration, please refer to the codebase above.
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## Dataset Structure
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Dataset is structured in the following format:
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```
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.
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βββ partition_name
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βββ image_size # 16x16 or 32x32
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βββ lensed # lensed version of the video representation
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| βββ filename_i.mkv # normalized video representation of i-th audio file using this codec
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βββ lensless_measurement # lensless version captured using LenslessMic
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βββ filename_i.mkv # lensless video of the i-th audio file
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βββ filename_i.txt # label 'j' of the mask from the masks dir used for this video
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βββ masks # masks for the lensless camera
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βββ mask_j.npy # mask pattern
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```
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Apart from other LenslessMic datasets, this one does not use any audio codecs. These are just random images from N(0,1).
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The dataset can be used to train a codec-agnostic reconstruction algorithm. No min/max vals are used (set to 0 and 1).
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Some codecs have different types of lensless measurements:
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1. `lensless_measurement`: standard version. Resizes images in a screen in a such a way that they have size 256x256 on the sensor.
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Region of interest for the reconstruction for this dataset is:
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| Sensor Image Size | Top Left Corner | Height | Width |
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| ----------------- | --------------- | ------ | ----- |
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| 256 x 256 | [65, 118] | 256 | 256 |
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## Citation
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If you use this dataset, please cite it as follows:
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```bibtex
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@article{grinberg2025lenslessmic,
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title = {LenslessMic: Audio Encryption and Authentication via Lensless Computational Imaging},
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author = {Grinberg, Petr and Bezzam, Eric and Prandoni, Paolo and Vetterli, Martin},
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journal = {arXiv preprint arXiv:2509.16418},
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year = {2025},
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}
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```
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