Learning and Incorporating Shape Models for Semantic Segmentation

Autor: Sheshadri Thiruvenkadam, Prasad Sudhakar, Vivek Vaidya, Hariharan Ravishankar, Rahul Venkataramani
Rok vydání: 2017
Předmět:
Zdroj: Medical Image Computing and Computer Assisted Intervention − MICCAI 2017 ISBN: 9783319661810
MICCAI (1)
Popis: Semantic segmentation has been popularly addressed using Fully convolutional networks (FCN) (e.g. U-Net) with impressive results and has been the forerunner in recent segmentation challenges. However, FCN approaches do not necessarily incorporate local geometry such as smoothness and shape, whereas traditional image analysis techniques have benefitted greatly by them in solving segmentation and tracking problems. In this work, we address the problem of incorporating shape priors within the FCN segmentation framework. We demonstrate the utility of such a shape prior in robust handling of scenarios such as loss of contrast and artifacts. Our experiments show \(\approx 5\%\) improvement over U-Net for the challenging problem of ultrasound kidney segmentation.
Databáze: OpenAIRE