arXiv:2507.11400astro-ph.EPastro-ph.IM2025-07中稿 · publication in Ica…被引 1

轻量卷积自编码器可高效修复高噪声行星图像,助力深空探测数据恢复。

The model is the message: Lightweight convolutional autoencoders applied to noisy imaging data for planetary science and astrobiology

  • 采用轻量卷积自编码器压缩并重建高噪声行星图像的潜在特征。
  • 在90%以上像素被破坏时仍能有效恢复多色图像,信噪比显著提升。
  • 适合低光照、传感器老化等极端环境下的科学图像修复,模型空间更实用。

将卷积自编码器深度学习应用于行星科学与天体生物学成像数据,重点探讨机器学习方法的合理性、过程与结果解释性。成功的自编码器能以降维形式(潜在表示)捕捉数据特征,并用于重构原始输入。本研究利用基础轻量级卷积自编码器,评估其在存在随机破坏性噪声(如零亮度数据丢失或通道随机加色噪声)条件下的图像重建能力。结果显示,在特定场景中,即使噪声覆盖面积达90%及以上,多色图像重建仍具实际应用价值。该能力适用于有意掩码降低数据带宽,或光照不足、传感器退化、大气干扰等导致图像模糊的场景。进一步指出,对部分科学任务而言,模型潜在空间及其表征可能比大型原始影像数据更具价值。

原文摘要 · Abstract (English)

The application of convolutional autoencoder deep learning to imaging data for planetary science and astrobiological use is briefly reviewed and explored with a focus on the need to understand algorithmic rationale, process, and results when machine learning is utilized. Successful autoencoders train to build a model that captures the features of data in a dimensionally reduced form (the latent representation) that can then be used to recreate the original input. One application is the reconstruction of incomplete or noisy data. Here a baseline, lightweight convolutional autoencoder is used to examine the utility for planetary image reconstruction or inpainting in situations where there is destructive random noise (i.e., either luminance noise with zero returned data in some image pixels, or color noise with random additive levels across pixel channels). It is shown that, in certain use cases, multi-color image reconstruction can be usefully applied even with extensive random destructive noise with 90% areal coverage and higher. This capability is discussed in the context of intentional masking to reduce data bandwidth, or situations with low-illumination levels and other factors that obscure image data (e.g., sensor degradation or atmospheric conditions). It is further suggested that for some scientific use cases the model latent space and representations have more utility than large raw imaging datasets.

图像修复行星科学自编码器噪声处理

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