Learning based Blur Detection and Segmentation

Published in ICIP 2018, 2018

Purohit, Kuldeep, Anshul B. Shah, and A. N. Rajagopalan. 2018 25th IEEE International Conference on Image Processing (ICIP). IEEE, 2018.

We present a robust two-level architecture for blur-based segmentation of a single image. First network is a fully convolutional encoder-decoder for estimating a semantically meaningful blur map from the full-resolution blurred image. Second network is a CNN-based classifier for obtaining local (patch-level) blur-probabilities. Fusion of the two network outputs enables accurate blur-segmentation using Graph-cut optimization over the obtained probabilities. We also show its applications in blur magnification and matting.