Learning Phase Distortion with Selective State Space Models for Video Turbulence Mitigation

• URL: http://arxiv.org/abs/2504.02697v1
• Date: Thu, 03 Apr 2025 15:33:18 GMT
• Title: Learning Phase Distortion with Selective State Space Models for Video Turbulence Mitigation
• Authors: Xingguang Zhang, Nicholas Chimitt, Xijun Wang, Yu Yuan, Stanley H. Chan,
• Abstract summary: Atmospheric turbulence is a major source of image degradation in long-range imaging systems.<n>Many deep learning-based turbulence mitigation (TM) methods have been proposed, but they are slow, memory-hungry, and do not generalize well.<n>We present a new TM method based on two concepts: (1) A turbulence mitigation network based on the Selective State Space Model (MambaTM) and (2) Learned Latent Phase Distortion (LPD)<n>Our proposed method exceeds current state-of-the-art networks on various synthetic and real-world TM benchmarks with significantly faster inference speed.
• Score: 13.073844945948132
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Atmospheric turbulence is a major source of image degradation in long-range imaging systems. Although numerous deep learning-based turbulence mitigation (TM) methods have been proposed, many are slow, memory-hungry, and do not generalize well. In the spatial domain, methods based on convolutional operators have a limited receptive field, so they cannot handle a large spatial dependency required by turbulence. In the temporal domain, methods relying on self-attention can, in theory, leverage the lucky effects of turbulence, but their quadratic complexity makes it difficult to scale to many frames. Traditional recurrent aggregation methods face parallelization challenges. In this paper, we present a new TM method based on two concepts: (1) A turbulence mitigation network based on the Selective State Space Model (MambaTM). MambaTM provides a global receptive field in each layer across spatial and temporal dimensions while maintaining linear computational complexity. (2) Learned Latent Phase Distortion (LPD). LPD guides the state space model. Unlike classical Zernike-based representations of phase distortion, the new LPD map uniquely captures the actual effects of turbulence, significantly improving the model's capability to estimate degradation by reducing the ill-posedness. Our proposed method exceeds current state-of-the-art networks on various synthetic and real-world TM benchmarks with significantly faster inference speed. The code is available at http://github.com/xg416/MambaTM.

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