A Cascade of 2.5D CNN and LSTM Network for Mitotic Cell Detection in 4D Microscopy Image

06/04/2018
by   Titinunt Kitrungrotsakul, et al.
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In recent years, intravital skin imaging has been used in mammalian skin research for the investigation of cell behaviors. The mitotic cell (cell division) detection is a fundamental step of the investigation. Due to the complex backgrounds (normal cells), most of the existing methods bring a lot of false positives. In this paper, we proposed a 2.5 dimensional (2.5D) cascaded end-to-end network (CasDetNet_LSTM) for accurate automatic mitotic cell detection in 4D microscopic images with fewer training data. The CasDetNet_LSTM consists of two 2.5D networks. The first one is a 2.5D fast region-based convolutional neural network (2.5D Fast R-CNN), which is used for the detection of candidate cells with only volume information and the second one is a long short-term memory (LSTM) network embedded with temporal information, which is used for reduction of false positive and retrieving back those mitotic cells that missed in the first step. The experimental results shown that our CasDetNet_LSTM can achieve higher precision and recall comparing to other state-of-the-art methods.

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