Pattern of Local Gravitational Force (PLGF): A Novel Local Image Descriptor | IEEE Journals & Magazine | IEEE Xplore

Pattern of Local Gravitational Force (PLGF): A Novel Local Image Descriptor


Abstract:

This paper presents a novel local image descriptor called Pattern of Local Gravitational Force (PLGF). It is inspired by Law of Universal Gravitation. PLGF is a hybrid de...Show More

Abstract:

This paper presents a novel local image descriptor called Pattern of Local Gravitational Force (PLGF). It is inspired by Law of Universal Gravitation. PLGF is a hybrid descriptor, which is a combination of two feature components: one is the Pattern of Local Gravitational Force Magnitude (PLGFM), and another is Pattern of Local Gravitational Force Angle (PLGFA). PLGFM encodes the local gravitational force magnitude, and PLGFA encodes the local gravitational force angle that the center pixel exerts on all other pixels within a local neighborhood. We propose a novel noise resistance and the edge-preserving binary pattern called neighbors to center difference binary pattern (NCDBP) for gravitational force magnitude encoding. Finally, the histograms of the two components are concatenated to construct the PLGF descriptor. Experimental results on the existing face recognition databases, texture database, and biomedical image database show that PLGF is an effective image descriptor, and it outperforms other widely used existing descriptors. Even if in complicated variations like noise, and illumination with smaller databases, a combination of PLGF and convolutional neural network (CNN) performs consistently better than other state-of-the-art techniques.
Published in: IEEE Transactions on Pattern Analysis and Machine Intelligence ( Volume: 43, Issue: 2, 01 February 2021)
Page(s): 595 - 607
Date of Publication: 01 August 2019

ISSN Information:

PubMed ID: 31380743

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