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diff --git a/docs/reading/papers/202311-sugar.md → docs/reading/papers/20231121-sugar.md b/docs/reading/papers/202311-sugar.md → docs/reading/papers/20231121-sugar.md
diff --git a/docs/reading/papers/20231122-depth-reg-3dgs-few-shot.md b/docs/reading/papers/20231122-depth-reg-3dgs-few-shot.md
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+---
+keywords: gaussian splatting
+---
+
+# Depth-Regularized Optimization for 3D Gaussian Splatting in Few-Shot Images
+
+We obtained the depth map using a pre-trained monocular depth estimation model (scale ambiguity) and aligning the scale and offset using sparse COLMAP feature points
+
+early stop, the optimization process stops when the depth-guide loss starts to rise
+
+smoothness constraint, ensuring that neighbor 3D points have similar depths
+
+## Results
+
+NeRF-LLFF