Camera captured DIQA with linearity and monotonicity constraints

X Peng, C Wang - Document Analysis Systems: 14th IAPR International …, 2020 - Springer
Document image quality assessment (DIQA), which predicts the visual quality of the
document images, can not only be applied to estimate document's optical character …

Document quality estimation using spatial frequency response

PK Rai, S Maheshwari, V Gandhi - 2018 IEEE International …, 2018 - ieeexplore.ieee.org
The current Document Image Quality Assessment (DIQA) algorithms directly relate the
Optical Character Recognition (OCR) accuracies with the quality of the document to build …

TextureToMTF: predicting spatial frequency response in the wild

M Bohra, S Maheshwari, V Gandhi - Signal, Image and Video Processing, 2020 - Springer
In this work, we propose an no-reference image quality assessment (NR-IQA) approach at a
confluence of signal processing and deep learning. We use MTF50 (spatial frequency where …