High-Resolution Single-Shot Polarimetric Imaging Made Easy

• URL: http://arxiv.org/abs/2604.05581v1
• Date: Tue, 07 Apr 2026 08:20:58 GMT
• Title: High-Resolution Single-Shot Polarimetric Imaging Made Easy
• Abstract summary: EasyPolar is a multi-view polarimetric imaging framework.<n>Three synchronized RGB cameras capture one unpolarized view and two polarized views with distinct orientations.<n>A confidence-guided polarization reconstruction network is proposed to address the potential misalignment in multi-view fusion.
• Score: 76.04914313843774
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Polarization-based vision has gained increasing attention for providing richer physical cues beyond RGB images. While achieving single-shot capture is highly desirable for practical applications, existing Division-of-Focal-Plane (DoFP) sensors inherently suffer from reduced spatial resolution and artifacts due to their spatial multiplexing mechanism. To overcome these limitations without sacrificing the snapshot capability, we propose EasyPolar, a multi-view polarimetric imaging framework. Our system is grounded in the physical insight that three independent intensity measurements are sufficient to fully characterize linear polarization. Guided by this, we design a triple-camera setup consisting of three synchronized RGB cameras that capture one unpolarized view and two polarized views with distinct orientations. Building upon this hardware design, we further propose a confidence-guided polarization reconstruction network to address the potential misalignment in multi-view fusion. The network performs multi-modal feature fusion under a confidence-aware physical guidance mechanism, which effectively suppresses warping-induced artifacts and enforces explicit geometric constraints on the solution space. Experimental results demonstrate that our method achieves high-quality results and benefits various downstream tasks.

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