Image compression using derivative information with Distance Transforms. - Leena Ikonen; Ville Kyrki; Pekka J. Toivanen; Heikki Kälviäinen (EUSIPCO, 2000)

Shortest Route on Height Map Using Gray-Level Distance Transforms. - Leena Ikonen; Pekka J. Toivanen (DGCI, 2003)

Shortest Route on Gray-Level Map Using Distance Transform on Curved Space. - Leena Ikonen; Pekka J. Toivanen; Janne Tuominen (SCIA, 2003)

Distance and Nearest Neighbor Transforms of Gray-Level Surfaces Using Priority Pixel Queue Algorithm. - Leena Ikonen; Pekka J. Toivanen (ACIVS, 2005)

Pixel Queue Algorithm for Geodesic Distance Transforms. - Leena Ikonen (DGCI, 2005)

Shortest routes on varying height surfaces using gray-level distance transforms. - Leena Ikonen; Pekka J. Toivanen (Image Vis. Comput., 2005)

Distance Transforms on Anisotropic Surfaces for Surface Roughness Measurement. - Leena Ikonen; Toni Kuparinen; Eduardo Villanueva; Pekka J. Toivanen (DGCI, 2006)

Priority pixel queue algorithm for geodesic distance transforms. - Leena Ikonen (Image Vis. Comput., 2007)

Distance and nearest neighbor transforms on gray-level surfaces. - Leena Ikonen; Pekka J. Toivanen (Pattern Recognit. Lett., 2007)