512x512 fp16 ONNX export of ZhengPeng7/BiRefNet_lite, used by vitaltools.top's Background Remover (Private mode, low-memory devices).
BiRefNet by ZhengPeng7, MIT licence. Weights unchanged; exported from PyTorch at a fixed 512x512 input with a half-precision graph and fp32 input/output.
Export-only changes: deform_conv2d lowered via deform_conv2d_onnx_exporter with static shapes. Max difference vs the fp32 PyTorch model on random input: 2.5e-7.