title: What is "semantic segmentation" compared to "segmentation" and "scene labeling"?
body: <p>Is semantic segmentation just a Pleonasm or is there a difference between "semantic segmentation" and "segmentation"? Is there a difference to "scene labeling" or "scene parsing"?</p>
  
  <p>What is the difference between pixel-level and pixelwise segmentation?</p>
  
  <p>(Side-question: When you have this kind of pixel-wise annotation, do you get object detection for free or is there still something to do?)</p>
  
  <p>Please give a source for your definitions.</p>
  
  <h2>Sources which use "semantic segmentation"</h2>
  
  <ul>
  <li>Jonathan Long, Evan Shelhamer, Trevor Darrell: <a href="https://arxiv.org/abs/1605.06211" rel="noreferrer">Fully Convolutional Networks for Semantic Segmentation</a>. CVPR, 2015 and PAMI, 2016  </li>
  <li>Hong, Seunghoon, Hyeonwoo Noh, and Bohyung Han: "Decoupled Deep Neural Network for Semi-supervised Semantic Segmentation." <a href="http://arxiv.org/abs/1506.04924" rel="noreferrer">arXiv preprint arXiv:1506.04924</a>, 2015.</li>
  <li>V. Lempitsky, A. Vedaldi, and A. Zisserman: A pylon model for semantic segmentation. In Advances in Neural Information Processing Systems, 2011.</li>
  </ul>
  
  <h2>Sources which use "scene labeling"</h2>
  
  <ul>
  <li>Clement Farabet, Camille Couprie, Laurent Najman, Yann LeCun: <a href="http://yann.lecun.com/exdb/publis/pdf/farabet-pami-13.pdf" rel="noreferrer">Learning Hierarchical Features
  for Scene Labeling</a>. In Pattern Analysis and Machine Intelligence, 2013.</li>
  </ul>
  
  <h2>Source which use "pixel-level"</h2>
  
  <ul>
  <li>Pinheiro, Pedro O., and Ronan Collobert: "From Image-level to Pixel-level Labeling with Convolutional Networks." Proceedings of the IEEE Conference on Computer Vision and Pattern Recognition, 2015. (see <a href="http://arxiv.org/abs/1411.6228" rel="noreferrer">http://arxiv.org/abs/1411.6228</a>)</li>
  </ul>
  
  <h2>Source which use "pixelwise"</h2>
  
  <ul>
  <li>Li, Hongsheng, Rui Zhao, and Xiaogang Wang: "Highly efficient forward and backward propagation of convolutional neural networks for pixelwise classification." <a href="http://arxiv.org/abs/1412.4526" rel="noreferrer">arXiv preprint arXiv:1412.4526</a>, 2014.</li>
  </ul>
  
  <h2>Google Ngrams</h2>
  
  <p>"Semantic segmentation" seems to be more used recently than "scene labeling"</p>
  
  <p><a href="https://i.stack.imgur.com/OI5p1.png" rel="noreferrer"><img src="https://i.stack.imgur.com/OI5p1.png" alt="enter image description here"></a></p>