Title
Randomized Tree Ensembles for Object Detection in Computational Pathology
Abstract
Modern pathology broadly searches for biomarkers which are predictive for the survival of patients or the progression of cancer. Due to the lack of robust analysis algorithms this work is still performed manually by estimating staining on whole slides or tissue microarrays (TMA). Therefore, the design of decision support systems which can automate cancer diagnosis as well as objectify it pose a highly challenging problem for the medical imaging community. In this paper we propose Relational Detection Forests (RDF) as a novel object detection algorithm, which can be applied in an off-the-shelf manner to a large variety of tasks. The contributions of this work are twofold: (i) we describe a feature set which is able to capture shape information as well as local context. Furthermore, the feature set is guaranteed to be generally applicable due to its high flexibility. (ii) we present an ensemble learning algorithm based on randomized trees, which can cope with exceptionally high dimensional feature spaces in an efficient manner. Contrary to classical approaches, subspaces are not split based on thresholds but by learning relations between features. The algorithm is validated on tissue from 133 human clear cell renal cell carcinoma patients (ccRCC) and on murine liver samples of eight mice. On both species RDFs compared favorably to state of the art methods and approaches the detection accuracy of trained pathologists.
Year
DOI
Venue
2009
10.1007/978-3-642-10331-5_35
ISVC (1)
Keywords
Field
DocType
randomized tree ensembles,object detection,detection accuracy,human clear cell,renal cell carcinoma patient,efficient manner,off-the-shelf manner,high dimensional feature space,feature set,computational pathology,cancer diagnosis,high flexibility,detection algorithm,ensemble learning,feature space,decision support system,tissue microarray,biology
Medical imaging,Computer science,Voronoi diagram,Artificial intelligence,Ensemble learning,Pathology,RDF,Computer vision,Object detection,Pattern recognition,Decision support system,Linear subspace,RDF Schema,Machine learning
Conference
Volume
ISSN
Citations 
5875
0302-9743
1
PageRank 
References 
Authors
0.36
11
7
Name
Order
Citations
PageRank
Thomas J. Fuchs134322.48
Johannes Haybaeck271.17
Peter J. Wild3314.26
Mathias Heikenwalder410.36
H Moch513115.90
Adriano Aguzzi610.36
joachim m buhmann74363730.34