There is also a paper published with technical details at http://arxiv.org/abs/1502.02766 http://arxiv.org/abs/1502.02766. They are using Spatial Pyramid Pooli

There is also a paper published with technical details at http://arxiv.org/abs/1502.02766 http://arxiv.org/abs/1502.02766. They are using Spatial Pyramid Pooling like the Microsoft Deep Learning group out of China combined with a sliding window evaluation over the input images. Looks like we finally have an approach that does well on occluded and rotated faces. That is something that Viola-Jones does quite poorly, so its quite an exciting advance.