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Guided Proofreading of Automatic Segmentations for Connectomics

lib:25bb9acd57dc118c (v1.0.0)

Authors: Daniel Haehn,Verena Kaynig,James Tompkin,Jeff W. Lichtman,Hanspeter Pfister
Where published: CVPR 2018 6
ArXiv: 1704.00848
Document:  PDF  DOI 
Abstract URL: http://arxiv.org/abs/1704.00848v1

Automatic cell image segmentation methods in connectomics produce merge and split errors, which require correction through proofreading. Previous research has identified the visual search for these errors as the bottleneck in interactive proofreading. To aid error correction, we develop two classifiers that automatically recommend candidate merges and splits to the user. These classifiers use a convolutional neural network (CNN) that has been trained with errors in automatic segmentations against expert-labeled ground truth. Our classifiers detect potentially-erroneous regions by considering a large context region around a segmentation boundary. Corrections can then be performed by a user with yes/no decisions, which reduces variation of information 7.5x faster than previous proofreading methods. We also present a fully-automatic mode that uses a probability threshold to make merge/split decisions. Extensive experiments using the automatic approach and comparing performance of novice and expert users demonstrate that our method performs favorably against state-of-the-art proofreading methods on different connectomics datasets.

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