Registration of combined range-intensity scans: Initialization through verification. - Eric R. Smith; Bradford J. King; Charles V. Stewart; Richard J. Radke (Comput. Vis. Image Underst., 2008)

Physical Scale Keypoints: Matching and Registration for Combined Intensity/Range Images. - Eric R. Smith; Richard J. Radke; Charles V. Stewart (Int. J. Comput. Vis., 2012)

Registration of combined range-intensity scans. - Eric R. Smith (2012)