AJAHR: Amputated Joint Aware 3D Human Mesh Recovery
It addresses bias in human mesh recovery for amputees, a domain-specific problem with incremental improvements.
The paper tackles the problem of 3D human mesh recovery for individuals with limb loss, which existing methods overlook, by proposing AJAHR, an adaptive framework that integrates an amputation classifier and uses a synthetic dataset (A3D), achieving state-of-the-art results for amputated individuals while maintaining competitive performance on non-amputees.
Existing human mesh recovery methods assume a standard human body structure, overlooking diverse anatomical conditions such as limb loss. This assumption introduces bias when applied to individuals with amputations - a limitation further exacerbated by the scarcity of suitable datasets. To address this gap, we propose Amputated Joint Aware 3D Human Mesh Recovery (AJAHR), which is an adaptive pose estimation framework that improves mesh reconstruction for individuals with limb loss. Our model integrates a body-part amputation classifier, jointly trained with the mesh recovery network, to detect potential amputations. We also introduce Amputee 3D (A3D), which is a synthetic dataset offering a wide range of amputee poses for robust training. While maintaining competitive performance on non-amputees, our approach achieves state-of-the-art results for amputated individuals. Additional materials can be found at the project webpage.