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官方ESP-WHO资料，这里可以找到板子的测试DEMO,推荐乌班图下编译生成固件
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README.md

ESP-WHO

ESP-WHO is a face detection and recognition platform that is currently based on Espressif Systems' ESP32 chip.

Overview

ESP-WHO supports development of face detection and recognition applications based around Espressif Systems' ESP32 chip in the most convenient way. With ESP-WHO, you can easily build up face detection- and recognition-featured applications, for instance:

  • A coffee machine that brews coffee according to your taste preference;
  • Home applicance that will shut off the electricity automatically when unsupervised children are operating them;
  • And other more applications that suit your needs.

In general, the ESP-WHO features will be supported as shown below:

overview

In ESP-WHO, Detection, Recognition and Image Utility are at the core of the platform.

  • Image Utility offers fundamental image processing APIs for ESP32.

  • Detection takes images as input and give the position of face if there is a face. It is implemented with MTMN model, which refers to MTCNN and MobileNet. However, we replace CNN with MobileNet block and the model size is quite smaller than other face detection models.

  • Recognition is to identify the particular person, and it needs the results of detection. It is implemented with MobileFace model.

Both input and output are flexible.

  • Image sources could be input via camera. However, we don't provide many drivers right now, those for other camera modules will be released in the future.

  • Results could be output and displayed through Command line, LCD or even website via Wi-Fi http service.

Quick Start with ESP-WHO

Hardware Preparation

To run ESP-WHO, you need to have a development board which integrates a ESP32 module that has sufficient GPIO pins and more than 4 MB external SPI RAM. In this case, we take ESP-WROVER-KIT as the test board, which is highly recommended for getting started with ESP-WHO.

On how to configure ESP32 module for your applications, please refer to the README.md of each example.

Software Preparation

Image

The recommended resolution of input image is QVGA (320x240).

As for choosing camera as an image offer, make sure that the ESP32 module you choose offers specific pins that your camera needs. If there are pin conflicts, please refer to the pin connection in README.md of each example.

By now, we have provided the driver of OV2640, which is highly recommended to get started with.

ESP-WHO

Make sure you clone the project recursive:

git clone --recursive https://github.com/espressif/esp-who.git

If you clone project without --recursive flag, please go to the esp-who directory and run command git submodule update --init before doing anything.

ESP-IDF

See setup guides for detailed instructions to set up the ESP-IDF:

In this case, we take ESP-IDF v3.1 as the test version.

Components

Components 是这个SDK的主要框架，里面有camera相关驱动，算法core等，这些会被大多数的应用所包含。

See the following sections for more details about components.

Camera

The camera component contains drivers for camera devices of ESP32. Now OV2640 is supported.

esp-face

The esp-face component contains the APIs of ESP-WHO neural networks, including face detection and recognition framework.

Examples

The folder of examples contains sample applications demonstrating the API features of ESP-WHO.

Take one Face Detection as an example.

  1. Get into one example folder esp-who/examples/single_chip/detection_with_command_line.
cd esp-who/examples/single_chip/detection_with_command_line
  1. Compile the project. You may run make defconfig before make flash to get the default configurations.
make defconfig
make flash
  1. Advanced users can modify some options by using the command make menuconfig.

Check README.md of each example for more details.

Resources