Accurate cell detection and counting in the image-based ELISpot and FluoroSpot immunoassays is a challenging task. Methodology recently proposed by our group matches human accuracy by leveraging knowledge of the underlying physical process of these assays and using state-of-the-art iterative techniques to solve an inverse problem. Nonetheless, thousands of computationally expensive iterations are often needed to reach a near-optimal solution. In this paper, we exploit the structure of the iterations to design a parameterized computation graph, SpotNet, that learns the characteristic patterns embedded within several training images and their respective cell secretion information. Further, we compare SpotNet to a customized convolutional neural network layout  for cell detection based on recent advances . We show empirical evidence that, while both designs obtain a detection performance  far beyond that of a human expert, SpotNet is substantially easier to train and obtains better estimates of cell secretion .
Accurate cell detection and counting in the image-based ELISpot and FluoroSpot immunoassays is a challenging task. Recently proposed methodology matches human accuracy by leveraging knowledge of the underlying physical process of these assays and using proximal optimization methods to solve an inverse problem. Nonetheless, thousands of computationally expensive iterations are often needed to reach a near-optimal solution. In this paper, we exploit the structure of the iterations to design a parameterized computation graph, SpotNet, that learns the patterns embedded within several training images and their respective cell information. Further, we compare SpotNet to a convolutional neural network layout customized for cell detection . We show empirical evidence that, while both designs obtain a detection performance on synthetic data far beyond that of a human expert, SpotNet is easier to train and obtains better estimates of particle secretion for each cell .
R
Methodology recently proposed by our group
Recently proposed methodology
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state-of-the-art iterative techniques
proximal optimization methods
D
characteristic
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secretion
D
customized
A
customized
D
based on recent advances
A
on synthetic data
D
substantially
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cell secretion
particle secretion for each cell