Image Splicing Seam Line Avoidance in Regions of Importance

The patent applies local quality by differentiating the treatment of different regions within the overlapping area. Regions of importance (such as faces) are identified and assigned special protection, while other regions follow the standard energy-minimization seam line approach. This allows the seam line determination to have different characteristics in different spatial locations, preserving important regions while maintaining overall registration accuracy.

The overlapping region is segmented into regions of importance and non-important regions. This segmentation allows the seam line optimization to be performed separately for different segments, ensuring that the seam line avoids regions of importance while still achieving good global splicing accuracy through optimized path selection in non-important regions.

The patent applies preliminary anti-action by pre-identifying regions of importance before determining the seam line. By marking these regions in advance and incorporating them into the energy minimization function as constraints, the seam line determination process proactively prevents deformation of these regions rather than correcting it afterward. The energy function is modified to penalize paths that pass through important regions.