短語詞組短語shape -preserving mapping method 保形映射法Global shape features preserving 全局形狀特征保持Shape -Preserving 保形adaptive shape -preserving sampling 保形自適應采樣monotonic shape -preserving interpolation 單調保形插值cubic Hermite shape -preserving interpolation 三次Hermite保形插值 返回 shape preserving