Tencent Captcha Recognition Using MobileNet

2017-11-30

This is the magic of CNN.

Tencent-Captcha-Recognition project is to recognize the Captcha of Tencent QQ zone using MobileNet.

The Captcha contains four English characters:

Instead of using regular convolutional filter, MobileNet adopts the combination of Deptwise filters and Pointwise filters, which significantly reduces the parameters and operations of the convolution.

The base module for MobileNet is:

Using the feature maps produced by MobileNet, we add four parallel Fully connected layers and each layer outputs the character respectively based on the feature maps.

Reference

MobileNets: Efficient Convolutional Neural Networks for Mobile Vision Applications MobileNets Tensorflow