@mastersthesis {5433, title = {Gradual Generalization of Nautical Chart Contours with a B-Spline Snake Method}, volume = {Ocean Engineering}, year = {2014}, month = {September}, pages = {135}, school = {University of New Hampshire}, address = {Durham, NH}, abstract = {

B-spline snake methods have been used in cartographic generalization in the past decade, particularly in the generalization of nautical charts where these methods yield good results with respect to the shoal-bias rules for the generalization of chart contours. However, previous studies only show generalization results at particular generalization (or scale) levels, and show only two states of the algorithm: before and after generalization, but nothing in between. This thesis presents an improved method of using B-spline snakes and other auxiliary functions and workflows for generalization in the context of nautical charts which can generalize multiple nautical chart features from large scale to small scale without creating any invalid intermediate features that require special processing to resolve. This process allows users to generate charts at any intermediate scale without cartographic irregularities, and is capable of extension to include more specialized generalization operators.

}, author = {Miao, Dandan} } @proceedings {5277, title = {Gradual Generalization of Nautical Chart Contours with a Cube B-Spline Snake Model}, year = {2013}, month = {Sep 23 - Sep 26}, publisher = {IEEE}, address = {San Diego, CA, USA}, abstract = {

B-spline snake methods have been used in cartographic generalization in the past decade, particularly in the generalization of navigational charts where this method yields good results with respect to the shoal-bias rules for generalization of chart contours. However, previous studies only show generalization results at particular generalization (or scale) levels, and the user can only see two conditions: before the generalization and after generalization, but nothin in between.\ This paper presents an improved method of using B-spline snakes for generalization in the context of nautical charts, where the generalization process is done gradually, and the user can see the complete process of the generalization.

}, author = {Miao, Dandan and Brian R Calder} }