Research Description:

Underwater Images are of degraded quality due to the scattering and absorption. The color cast and turbidity that hinder the visibility of such images are due to the sediments present that vary for diverse environments. Shallow water images are very turbid. The images too suffer from negative effects of artificial illumination when capturing data. Here a two-step approach is formulated to restore and enhance the underwater images from different locations. The images are then blended using a wavelet fusion considering the mean of the images. The output images demonstrate reduced haze, improved contrast and enhanced sharpness with adequate removal of the color cast. The results project better visibility on both subjective and objective measures compared to recent restoration and enhancement methods.

Publications:

Journals:

1. Mary Cecilia, Sakthivel Murugan S, "Denoising, Edge Aware Restoration and Enhancement of Single Shallow Coastal Water Image", Fluctuation and Noise Letters (2021): 2250009. 

Conferences:

1.  Mary Cecilia S. and Sakthivel Murugan Santhanam, "Visibility Restoration of Diverse Turbid Underwater Images- Two Step Approach" Twenty Seventh National Conference on Communications (NCC-2021) Virtual conference, 27-30th July, 2021, IIT Kanpur, Uttar Pradesh, India.

2. Mary Cecilia, S. Sakthivel Murugan, "Edge Aware Turbidity Restoration of Single Shallow Coastal Water Image", Journal of Physics: Conference Series, June 2021, Vol. 1911, No. 1, p. 012021. (ICITSD 2021 - Best Paper Award)

3. Mary Cecilia S., Sakthivel Murugan S, N. Padmapriya, “Restoration of Single Shallow Coastal Water Images" in  "28th International Conference (Virtual) of Forum for Interdisciplinary Mathematics (FIM 2020) - Synergies in Computational, Mathematical Statistical and Physical Sciences" organized by Forum for Interdisciplinary Mathematics, Stella Maris College and Sri Sivasubramaniya Nadar College of Engineering,  November 23-27 2020, pp 290.

4. Mary Cecilia S., Sakthivel Murugan S, Padmapriya N, “Analysis of Various Dehazing Algorithms for Underwater Images”, 2019 International Symposium on Ocean Technology (SYMPOL), 11-13 Dec. 2019, Ernakulam, India. (Best paper award)