A Fast Piece-wise Deformable Method for Multi-Modality Image Registration. - Girish Gopalakrishnan; S. V. Bharath Kumar; Ajay Narayanan; Rakesh Mullick (AIPR, 2005)

Implicit function-based phantoms for evaluation of registration algorithms. - Girish Gopalakrishnan; Timothy Poston; Nithin Nagaraj; Rakesh Mullick; Jérôme F. Knoplioch (Image Processing, 2005)

Anatomically Guided Registration for Multimodal Images. - Manasi Datar; Girish Gopalakrishnan; Sohan Ranjan; Rakesh Mullick (AIPR, 2006)

A framework for parameter optimization in mutual information (MI)-based registration algorithms. - Girish Gopalakrishnan; S. V. Bharath Kumar; Rakesh Mullick; Ajay Narayanan; Srikanth Suryanarayanan (Image Processing, 2006)

Registration-based initialization during radiation therapy planning. - Girish Gopalakrishnan; Rakesh Mullick (Image Processing, 2007)

Deformable registration with spatially varying degrees of freedom constraints. - James V. Miller; Girish Gopalakrishnan; Manasi Datar; Paulo R. S. Mendonça; Rakesh Mullick (ISBI, 2008)

A Framework for Automated Tumor Detection in Thoracic FDG PET Images Using Texture-Based Features. - Vijaya Saradhi Gannavaram; Girish Gopalakrishnan; Arunabha Roy; Rakesh Mullick; Ravi Manjeshwar; Kris Thielemans; Uday Patil (ISBI, 2009)

Quantitatively accurate image reconstruction for clinical whole-body PET imaging. - Evren Asma; Sangtae Ahn; Hua Qian; Girishankar Gopalakrishnan; Kris Thielemans; Steven G. Ross; Ravindra M. Manjeshwar; Alexander Ganin (APSIPA, 2012)