PhyFea can be extended to incorporate additional physical constraints by identifying and integrating more complex spatial relationships and interactions between object classes. For instance, one could consider constraints related to occlusion, where certain classes should not be visible if they are behind others, or hierarchical relationships, such as the requirement that certain classes must always be above or below others (e.g., trees above the ground, or vehicles on the road).
Moreover, the inclusion of temporal constraints could enhance the model's ability to understand dynamic scenes, where the relationships between objects change over time. This could be particularly useful in video segmentation tasks. Another potential extension could involve the integration of geometric constraints, such as the expected shapes and sizes of objects, which could help in refining the segmentation outputs further.
To implement these extensions, one could leverage additional morphological operations or develop new differentiable layers that enforce these constraints during the training process. By broadening the scope of physical constraints, PhyFea could significantly improve the robustness and accuracy of semantic segmentation in diverse and complex environments.