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NeRF-Navi An Energy-Efficient NeRF 3-D Path Planning Processor With Reconfigurab
NeRF-Navi是一款高效节能的3D路径规划处理器，通过创新设计降低能耗并保持高精度。
28nm CMOS, 6.48mm² die area, 1.2–8.8× lower path planning energy per task, 1.7–124× lower EDP
NeRF路径规划能效优化近似计算硬件加速
▸双注意力神经路径采样（DANPS）引擎减少冗余批次，节省96.2%系统能量
▸近似-精确（A2）核心与误差可补偿减少树（ECRT）引入三种近似计算模式，精度损失小于1.6%
▸离群通道位卸载核心和位分配器（BA）卸载稀疏MSB位，减少36%系统能量
Abstract
An implicit neural representation (INR) continu-
ously encodes a 3-D space using a neural network. Neural
radiance field (NeRF), a type of INR, achieves a high path
planning success rate of 98.6%. It leverages the continuous
space representation ability of NeRF. However, accelerating
NeRF path planning on edge devices faces limitations due to
the excessive computational load. In this article, we present
NeRF-Navi, an accurate and energy-efficient 3-D NeRF path
planning processor with three key f