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⚡Yolo-Fastest⚡DOI

  • Simple, fast, compact, easy to transplant
  • A real-time target detection algorithm for all platforms
  • The fastest and smallest known universal target detection algorithm based on yolo
  • Optimized design for ARM mobile terminal, optimized to support NCNN reasoning framework
  • Based on NCNN deployed on RK3399 ,Raspberry Pi 4b... and other embedded devices to achieve full real-time 30fps+

image

  • 中文介绍https://zhuanlan.zhihu.com/p/234506503
  • 相比AlexeyAB/darknet，此版本的darknet修复分组卷积在某些旧架构GPU推理耗时异常的问题(例如1050ti:40ms->4ms速度提升10倍)，强烈建议用此仓库框架训练模型
  • Compared with AlexeyAB/darknet, this version of darknet fixes the problem of abnormal time-consuming inference of grouped convolution in some old architecture GPUs (for example, 1050ti:40ms->4ms speed up 10 times), it is strongly recommended to use this warehouse framework for training model
  • Darknet CPU推理效率优化不好，不建议使用Darknet作为CPU端的推理框架，建议使用NCNN
  • Darknet CPU reasoning efficiency optimization is not good, it is not recommended to use Darknet as the CPU side reasoning framework, it is recommended to use ncnn
  • Based on pytorch training framework: https://github.com/dog-qiuqiu/yolov3

Evaluating indicator/Benchmark

Network COCO mAP(0.5) Resolution Run Time(Ncnn 4xCore) Run Time(Ncnn 1xCore) FLOPS Params Weight size
Yolo-Fastest-1.1 24.40 % 320X320 5.59 ms 7.52 ms 0.252BFlops 0.35M 1.4M
Yolo-Fastest-1.1-xl 34.33 % 320X320 9.27ms 15.72ms 0.725BFlops 0.925M 3.7M
Yolov3-Tiny-Prn 33.1% 416X416 %ms %ms 3.5BFlops 4.7M 18.8M
Yolov4-Tiny 40.2% 416X416 23.67ms 40.14ms 6.9 BFlops 5.77M 23.1M
  • Test platform Mi 11 Snapdragon 888 CPU，Based on NCNN
  • COCO 2017 Val mAP（no group label）
  • Suitable for hardware with extremely tight computing resources
  • This model is recommended to do some simple single object detection suitable for simple application scenarios

Yolo-Fastest-1.1 Multi-platform benchmark

Equipment Computing backend System Framework Run time
Mi 11 Snapdragon 888 Android(arm64) ncnn 5.59ms
Mate 30 Kirin 990 Android(arm64) ncnn 6.12ms
Meizu 16 Snapdragon 845 Android(arm64) ncnn 7.72ms
Development board Snapdragon 835(Monkey version) Android(arm64) ncnn 20.52ms
Development board RK3399 Linux(arm64) ncnn 35.04ms
Raspberrypi 3B 4xCortex-A53 Linux(arm64) ncnn 62.31ms
Orangepi Zero Lts H2+ 4xCortex-A7 Linux(armv7) ncnn 550ms
Nvidia Gtx 1050ti Ubuntu(x64) darknet 4.73ms
Intel i7-8700 Ubuntu(x64) ncnn 5.78ms

Pascal VOC performance index comparison

Network Model Size mAP(VOC 2007) FLOPS
Tiny YOLOv2 60.5MB 57.1% 6.97BFlops
Tiny YOLOv3 33.4MB 58.4% 5.52BFlops
YOLO Nano 4.0MB 69.1% 4.51Bflops
MobileNetv2-SSD-Lite 13.8MB 68.6% &Bflops
MobileNetV2-YOLOv3 11.52MB 70.20% 2.02Bflos
Pelee-SSD 21.68MB 70.09% 2.40Bflos
Yolo Fastest 1.3MB 61.02% 0.23Bflops
Yolo Fastest-XL 3.5MB 69.43% 0.70Bflops
MobileNetv2-Yolo-Lite 8.0MB 73.26% 1.80Bflops

Yolo-Fastest-1.1 Pedestrian detection

Equipment System Framework Run time
Raspberrypi 3B Linux(arm64) ncnn 62ms
  • Simple real-time pedestrian detection model based on yolo-fastest-1.1
  • Enable bf16s optimization，Raspberrypi 64 Bit OS

Demo

image image

Compile

How to compile on Linux

Just do make in the Yolo-Fastest-master directory. Before make, you can set such options in the Makefile: link

  • GPU=1 to build with CUDA to accelerate by using GPU (CUDA should be in /usr/local/cuda)
  • CUDNN=1 to build with cuDNN v5-v7 to accelerate training by using GPU (cuDNN should be in /usr/local/cudnn)
  • CUDNN_HALF=1 to build for Tensor Cores (on Titan V / Tesla V100 / DGX-2 and later) speedup Detection 3x, Training 2x
  • OPENCV=1 to build with OpenCV 4.x/3.x/2.4.x - allows to detect on video files and video streams from network cameras or web-cams
  • Set the other options in the Makefile according to your need.

Test/Demo

*Run Yolo-Fastest , Yolo-Fastest-xl , Yolov3 or Yolov4 on image or video inputs

Demo on image input

*Note: change .data , .cfg , .weights and input image file in image_yolov3.sh for Yolo-Fastest-x1, Yolov3 and Yolov4

  sh image_yolov3.sh

Demo on video input

*Note: Use any input video and place in the data folder or use 0 in the video_yolov3.sh for webcam

*Note: change .data , .cfg , .weights and input video file in video_yolov3.sh for Yolo-Fastest-x1, Yolov3 and Yolov4

  sh video_yolov3.sh

Yolo-Fastest Test

image

Yolo-Fastest-xl Test

image

How to Train

Generate a pre-trained model for the initialization of the model backbone

  ./darknet partial yolo-fastest.cfg yolo-fastest.weights yolo-fastest.conv.109 109

Train

  ./darknet detector train voc.data yolo-fastest.cfg yolo-fastest.conv.109

Deploy

NCNN

NCNN Conversion Tutorial

NCNN Sample

MNN&TNN&MNN

ONNX&TensorRT

  • https://github.com/CaoWGG/TensorRT-YOLOv4
  • It is not efficient to run on Psacal and earlier GPU architectures. It is not recommended to deploy on such devices such as jeston nano(17ms/img), Tx1, Tx2, but there is no such problem in Turing GPU, such as jetson-Xavier-NX Can run efficiently

OpenCV DNN

Thanks

Cite as

dog-qiuqiu. (2021, July 24). dog-qiuqiu/Yolo-Fastest: yolo-fastest-v1.1.0 (Version v.1.1.0). Zenodo. http://doi.org/10.5281/zenodo.5131532