Systems and methods for creating a treatment plan for cosmetic procedures, for example, a hair transplantation procedure, are provided. The treatment plan allows user to provide input on a proposed hair element using a free-hand drawing in a two-dimensional plane, and for the proposed hair element to be generated and displayed on a three-dimensional model of a body surface. Various techniques and methods described in the application provide for improved planning of a natural looking hair.本發明提供用於產生用於美容程序、例如毛髮移植程序之治療計劃之系統及方法。該治療計劃允許使用者使用處於二維平面中並針對將要產生建議毛髮要素且在身體表面之三維模型上加以顯示的徒手畫來提供關於該建議毛髮要素之輸入。本申請案中所述之各種技術及方法提供對自然外觀毛髮之改良計劃。
