الملخص
Pose-free feed-forward 3D Gaussian Splatting (3DGS) reconstructs a scene from sparse, unposed images in a single network pass, removing the need for camera calibration and per-scene optimization. However, camera estimation errors propagate into the predicted Gaussians and compound the geometric and photometric inaccuracies of single-pass prediction. To correct these errors, we introduce DeltaSplat, a lightweight Gaussian refinement module for pose-free feed-forward 3DGS. It iteratively renders the current Gaussians at the input context views and predicts per-Gaussian updates from the resulting residuals. A 2D residual alone, however, underdetermines the 3D correction. DeltaSplat therefore conditions each update on per-pixel Plücker rays and rendered depth as a soft geometric prior. A dual-branch convolutional mixer efficiently encodes these inputs, and per-attribute heads decode the fused features into position, opacity, and color updates. The module adds only ~2.2% parameters to the backbone and remains fully feed-forward at inference. On DL3DV, DeltaSplat reaches 26.64 dB PSNR in the pose-free setting, improving its state-of-the-art backbone by 1.75 dB and surpassing even baselines supplied with ground-truth cameras; consistent gains hold across 6-24 views and all camera regimes.
الكلمات المفتاحية
الموضوع
بيانات النشر
- المجلة
- غير متاح
- وصول مفتوح
- وصول مفتوح أخضر
اقتبس هذه المقالة
APA 7
Park, C., Song, S., Lee, J. C., Park, E., & Ko, J. H. (2026). DeltaSplat: Iterative Gaussian Refinement for Pose-Free Feed-Forward 3D Gaussian Splatting. https://omanscience.com/ar/articles/deltasplat-iterative-gaussian-refinement-for-pose-free-feed-forward-3d-gaussian-splatting
MLA 9
Park, Chanung, et al. "DeltaSplat: Iterative Gaussian Refinement for Pose-Free Feed-Forward 3D Gaussian Splatting." https://omanscience.com/ar/articles/deltasplat-iterative-gaussian-refinement-for-pose-free-feed-forward-3d-gaussian-splatting.
شيكاغو (المؤلف–التاريخ)
Park, Chanung, Seunghyeon Song, Joo Chan Lee, Eunbyung Park, and Jong Hwan Ko. 2026. "DeltaSplat: Iterative Gaussian Refinement for Pose-Free Feed-Forward 3D Gaussian Splatting." https://omanscience.com/ar/articles/deltasplat-iterative-gaussian-refinement-for-pose-free-feed-forward-3d-gaussian-splatting.
هارفارد
Park, C., Song, S., Lee, J. C., Park, E. and Ko, J. H. (2026) 'DeltaSplat: Iterative Gaussian Refinement for Pose-Free Feed-Forward 3D Gaussian Splatting', Available at: https://omanscience.com/ar/articles/deltasplat-iterative-gaussian-refinement-for-pose-free-feed-forward-3d-gaussian-splatting.
فانكوفر
Park C, Song S, Lee JC, Park E, Ko JH. DeltaSplat: Iterative Gaussian Refinement for Pose-Free Feed-Forward 3D Gaussian Splatting. https://omanscience.com/ar/articles/deltasplat-iterative-gaussian-refinement-for-pose-free-feed-forward-3d-gaussian-splatting
IEEE
C. Park, S. Song, J. C. Lee, E. Park, and J. H. Ko, "DeltaSplat: Iterative Gaussian Refinement for Pose-Free Feed-Forward 3D Gaussian Splatting," https://omanscience.com/ar/articles/deltasplat-iterative-gaussian-refinement-for-pose-free-feed-forward-3d-gaussian-splatting.