Keras Implementation of Google's Inception-V4 Architecture (includes Keras compatible pre-trained weights)
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Keras Inception-V4

Keras implementation of Google's inception v4 model with ported weights!

As described in: Inception-v4, Inception-ResNet and the Impact of Residual Connections on Learning (Christian Szegedy, Sergey Ioffe, Vincent Vanhoucke, Alex Alemi)

Note this Keras implementation tries to follow the tf.slim definition as closely as possible.

Pre-Trained weights for this Keras model can be found here (ported from the tf.slim ckpt):

You can evaluate a sample image by performing the following (weights are downloaded automatically):

  • $ python
Loaded Model Weights!
Class is: African elephant, Loxodonta africana
Certainty is: 0.868498



  • Enabled support for both Theano and Tensorflow (again... :neckbeard:)
  • Added useful training parameters
    • l2 regularization added to conv layers
    • Variance Scaling initialization added to conv layers
    • Momentum value updated for batch_norm layers
  • Updated pre-processing to match paper (subtracts 0.5 instead of 1.0 🔥)
  • Minor code changes and cleanup is also included in the recent changes

Performance Metrics (@Top5, @Top1)

Error rate on non-blacklisted subset of ILSVRC2012 Validation Dataset (Single Crop):

  • Top@1 Error: 19.54%
  • Top@5 Error: 4.88%

These error rates are actually slightly lower than the listed error rates in the paper:

  • Top@1 Error: 20.0%
  • Top@5 Error: 5.0%