JSSC 2023第11期Digital Circuits0.18µm

A 08 V Intelligent Vision Sensor With Tiny Convolutional Neural Network and Prog

提出一种0.8V智能视觉传感器，集成微型CNN和可编程传感器内处理电路，用于低功耗边缘设备实时推理。

0.8V, 128×128分辨率, 33.8pJ/pixel·frame, 93.6%准确率

智能视觉传感器卷积神经网络传感器内计算低功耗设计边缘计算

▸嵌入式微型CNN模型实现传感器内计算

▸可编程传感器内处理(PIS)电路设计

▸混合模式电路实现高效能人脸检测

Abstract

This article presents an intelligent vision sensor (IVS) with embedded tiny convolutional neural network (CNN) model and programmable processing-in-sensor (PIS) circuit for real-time inference applications of low-power edge devices. The proposed imager realizes the full computing functions of a customized three-layers tiny network, which includes a 3 × 3 convolution layer (stride = 3) with activation function of rectified linear unit (ReLU), a 2 × 2 maximum pooling (MP) layer (stride = 2), and a