vgg16.py 文件源码

python
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项目:HandDetection 作者: YunqiuXu 项目源码 文件源码
def fix_variables(self, sess, pretrained_model):
    print('Fix VGG16 layers..')
    with tf.variable_scope('Fix_VGG16') as scope:
      with tf.device("/cpu:0"):
        # fix the vgg16 issue from conv weights to fc weights
        # fix RGB to BGR
        fc6_conv = tf.get_variable("fc6_conv", [7, 7, 512, 4096], trainable=False)
        fc7_conv = tf.get_variable("fc7_conv", [1, 1, 4096, 4096], trainable=False)
        conv1_rgb = tf.get_variable("conv1_rgb", [3, 3, 3, 64], trainable=False)
        restorer_fc = tf.train.Saver({self._scope + "/fc6/weights": fc6_conv, 
                                      self._scope + "/fc7/weights": fc7_conv,
                                      self._scope + "/conv1/conv1_1/weights": conv1_rgb})
        restorer_fc.restore(sess, pretrained_model)

        sess.run(tf.assign(self._variables_to_fix[self._scope + '/fc6/weights:0'], tf.reshape(fc6_conv, 
                            self._variables_to_fix[self._scope + '/fc6/weights:0'].get_shape())))
        sess.run(tf.assign(self._variables_to_fix[self._scope + '/fc7/weights:0'], tf.reshape(fc7_conv, 
                            self._variables_to_fix[self._scope + '/fc7/weights:0'].get_shape())))
        sess.run(tf.assign(self._variables_to_fix[self._scope + '/conv1/conv1_1/weights:0'], 
                            tf.reverse(conv1_rgb, [2])))
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