C^2ROPE Advances 3D Multimodal Reasoning
C^2ROPE enhances Rotary Position Embedding for 3D Large Multimodal Models by addressing spatial locality loss and long-term attention decay. It introduces spatio-temporal continuous positional embeddings using triplet hybrid indices and Chebyshev Causal Masking. Evaluations show superior performance on 3D scene reasoning and VQA benchmarks.






