Preprint
Nov 2026
PTQ4SAM3: Semantics-Preserving Post-Training Quantization for Segment Anything Model 3
Segment Anything Model 3 (SAM 3) can segment objects from text prompts and track them across video, but its memory and computation costs make deployment difficult. Post-training quantization (PTQ) reduces these costs by using fewer bits. However, a quantized model can select the wrong object or lose track of its target...
Xi Xiao, Yun-Bei Zhang, Lin Zhao et al.
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