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Deep learning empowered highly compressive SS-OCT via learnable spectral-spatial sub-sampling
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DOI：10.1364/OL.484500.png)
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With the rapid advances of light source technology, the A-line imaging rate of swept-source optical coherence tomog-raphy (SS-OCT) has experienced a great increase in the past three decades. The bandwidths of data acquisition, data transfer, and data storage, which can easily reach several hundred megabytes per second, have now been considered major bottlenecks for modern SS-OCT system design. To address these issues, various compression schemes have been previously proposed. However, most of the current meth-ods focus on enhancing the capability of the reconstruction algorithm and can only provide a data compression ratio (DCR) up to 4 without impairing the image quality. In this Letter, we proposed a novel design paradigm, in which the sub-sampling pattern for interferogram acquisition is jointly optimized with the reconstruction algorithm in an end-to -end manner. To validate the idea, we retrospectively apply the proposed method on an ex vivo human coronary opti-cal coherence tomography (OCT) dataset. The proposed method could reach a maximum DCR of-62.5 with peak signal-to-noise ratio (PSNR) of 24.2 dB, while a DCR of-27.78 could yield a visually pleasant image with a PSNR of-24.6 dB. We believe the proposed system could be a viable remedy for the ever-growing data issue in SS-OCT.(c) 2023 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement
Keyword:
OPTICAL COHERENCE TOMOGRAPHY
期刊
IF:
3.3
论文数:
4.0W
被引数:
7.6W
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