KCPNet:Design,Deployment,and Application of Tensor-Decomposed Lightweight Convolutional Module

doi:10.7652/xjtuxb202203014

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KCPNet:Design,Deployment,and Application of Tensor-Decomposed Lightweight Convolutional Module

更新时间：2025-07-09

- KCPNet:Design,Deployment,and Application of Tensor-Decomposed Lightweight Convolutional Module
- Vol. 56, Issue 3, Pages: 135-146(2022)
- 作者机构：
  
  西安交通大学自动化科学与工程学院,西安,710049
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb202203014
  CLC： TP274+.5
- Online First：10 March 2022，
  
  Published：2022
- 稿件说明：
移动端阅览
KCPNet:Design,Deployment,and Application of Tensor-Decomposed Lightweight Convolutional Module[J]. 2022, 56(3): 135-146.
DOI：

KCPNet:Design,Deployment,and Application of Tensor-Decomposed Lightweight Convolutional Module[J]. 2022, 56(3): 135-146. DOI： 10.7652/xjtuxb202203014.

摘要

为解决现有卷积模块在实际应用中内存消耗高、计算效率低的问题

在Kronecker CANDECOMP/PARAFAC(KCP)张量分解的基础上

提出一种轻量、高效、瓶颈结构的卷积模块(KCPNet)。对普通卷积作2阶KCP分解

生成的因子张量分别映射为两层负责输入输出通道变化的1×1卷积和两层负责特征提取的变通道可分离卷积

再将这4层卷积组成含有瓶颈结构的KCPNet卷积模块。基于OpenCL并行编程框架将KCPNet部署于嵌入式GPU

并围绕pico-flexx深度相机开发了动态手势识别应用。实验结果表明:在ImageNet大规模标准数据集上

相比ResNet、ResNeXt等已有的张量分解卷积模块

KCPNet在准确率相近的情况下能够兼顾空间和计算复杂度的效率; 在中等规模标准数据集CIFAR-10上

KCPNet能够在无明显精度损失的前提下将传统的VGG模型压缩至原先的16.1%并节约75.5%的计算量; 在面向嵌入式GPU时

并行部署的KCPNet可使CIFAR-10的识别速度达到100帧/s。以KCPNet为核心开发的手势识别应用程序可达到99.5%的准确率和100帧/s以上的运行速度

内存开销为22 MB。

Abstract

To deal with the issues of high memory consumption and low computation efficiency of the existing convolutional modules in practical application

following the Kronecker CANDECOMP/PARAFAC(KCP)tensor decomposition

a lightweight

efficient

bottleneck-structured convolutional module(KCPNet)is proposed. The normal convolution is firstly decomposed as the 2nd-order KCP

the generated factor tensors are mapped into two 1×1 convolutions to carry out the transformation of input and output channels

and into two depthwise convolutions with changeable channels to perform the feature extraction

respectively. Then

these 4 convolutions are assembled into the KCPNet module with a bottleneck structure. The KCPNet is deployed in the embedded GPU based on the OpenCL parallel programming framework

and the dynamic gesture recognition application is developed around a pico-flexx depth camera. The experimental results show that compared with the existing convolutional modules of tensor decomposition such as ResNet

ResNeXt

etc.

the KCPNet can consider the efficiency of both space and computation complexity with a similar accuracy on the large-scale benchmark dataset ImageNet; the KCPNet can also compress the traditional VGG model to its original 16.1% and save 75.5% of computation without obvious accuracy loss on the medium-scale benchmark dataset CIFAR-10; the parallelly deployed KCPNet can achieve the recognition rate of 100 frames/s for CIFAR-10 when orienting to the embedded GPU. The developed gesture recognition application with the KCPNet as its core can achieve 99.5% accuracy and the running rate beyond 100 frames/s

and the memory cost is 22 MB.

关键词

Keywords

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