Getting started with FCN

[Mark Sakaguchi]

Hello,

I am new to Caffe and am tackling semantic segmentation using FCNs. I downloaded the FCN models and am trying to get the pre-trained modeling working on an example image however I am running into issues. I downloaded the pascalcontext-fcn32s-heavy.caffemodel and am trying to run it on a test image similar to the Caffe ImageNet tutorial:

import numpy as np
import caffe

import pascalcontext_layers


model_def = 'pascalcontext-fcn32s/val.prototxt'
model_weights = 'pascalcontext-fcn32s/pascalcontext-fcn32s-heavy.caffemodel'

net = caffe.Net(model_def, model_weights, caffe.TEST)

however I'm running into the error:

F0621 16:54:56.941515 21806 layer_factory.hpp:81] Check failed: registry.count(type) == 1 (0 vs. 1) Unknown layer type: Python (known types: AbsVal, Accuracy, ArgMax, BNLL, BatchNorm, BatchReindex, Bias, Concat, ContrastiveLoss, Convolution, Crop, Data, Deconvolution, Dropout, DummyData, ELU, Eltwise, Embed, EuclideanLoss, Exp, Filter, Flatten, HDF5Data, HDF5Output, HingeLoss, Im2col, ImageData, InfogainLoss, InnerProduct, Input, LRN, LSTM, LSTMUnit, Log, MVN, MemoryData, MultinomialLogisticLoss, PReLU, Parameter, Pooling, Power, RNN, ReLU, Reduction, Reshape, SPP, Scale, Sigmoid, SigmoidCrossEntropyLoss, Silence, Slice, Softmax, SoftmaxWithLoss, Split, TanH, Threshold, Tile, WindowData)
*** Check failure stack trace: ***

when I specify the val.prototxt file since the first layer defined is a type: "Python" layer which is a custom layer defined in "pascalcontext_layers.py" which is provided in the FCN model git repo.

Can anyone help me with this issue? Any help would be appreciated.

Also, if someone has a step-by-step guide on how to use the FCN models provided from the git repo it would be greatly appreciated. I am confused with what the "net.py" and "solve.py" function are used for for each model.

Thanks

[NGUYEN Nhu Van]

You should use deploy.prototxt instead of val.prototxt. There is an example of deploy.prototxt in the folder "voc-fcn8s"

[Evan Shelhamer]

You need to compile your Caffe with Python layer turned on, by for instance uncommenting this line.

# WITH_PYTHON_LAYER := 1

Evan Shelhamer

On Wed, Jun 22, 2016 at 1:04 AM, NGUYEN Nhu Van <n.nh...@gmail.com> wrote:

You should use deploy.prototxt instead of val.prototxt. There is an example of deploy.prototxt in the folder "voc-fcn8s"

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