Multi-View Stereo Matching Algorithm Based on Dynamic Patches

Existing multi-view 3D reconstruction methods based on PatchMatch encounter issues due to fixed patches, which limit the receptive field and lead to matching ambiguities in occluded areas. To address this issue, a dynamic patch matching method is proposed. This method first extends the field of view to all four quadrants, enhancing the reliable information within the receptive field, thus dynamically adjusting the size and shape of patches to adapt to changes in the scene. Secondly, it evaluates confidence based on geometric consistency and local coherence. Finally, experiments conducted on datasets such as historical buildings, ETH3D, and Tanks and Temples confirm the accuracy and completeness of our method.