Content-based histopathological image retrieval using multi-scale and multichannel decoder based LTP

摘要

The paper proposes a content based histopathological image retrieval scheme based on multi-scale, multichannel decoded local ternary pattern features and VLAD coding. The scheme analyzes an image into multiple scales wherein a decoder based local ternary pattern is utilized to extract upper and lower texture images at each level. A dense patch based histogram representation is obtained at each scale which is followed by VLAD coding and power-law normalization. Simulations performed on a standard 20-class histopathological dataset. The proposed scheme shows considerable improvement over state-of-the-art techniques. (C) 2019 Published by Elsevier Ltd.