Update readme.md

readme.md

@@ -3,7 +3,8 @@
 [![Issues][issues-shield]][issues-url]-->
 [![Apache License][license-shield]][license-url]
 [![Google Scholar][gs-shield]][gs-url]
-[![PDF][arxiv-shield]][arxiv-url]
+[![Pre-print][arxiv-shield]][arxiv-url]
+[![Published][ieee-shield]][ieee-url]
 
 # LFMNet: Learning to Reconstruct Confocal Microscope Stacks from Single Light Field Images
 
@@ -132,6 +133,8 @@ Project Link: [https://github.com/pvjosue/LFMNet](https://github.com/pvjosue/LFM
 [product-screenshot]: images/screenshot.png
 [arxiv-shield]: https://img.shields.io/badge/-PDF-black.svg?style=flat-square&logo=arXiv&colorB=555
 [arxiv-url]: https://arxiv.org/abs/2003.11004
+[ieee-shield]: https://img.shields.io/badge/IEEE-%20-blue?style=flat-square&
+[ieee-url]: https://ieeexplore.ieee.org/document/9488315