本發明係提供一種基於螺旋表面方程式之指部機能工作空間參數化方法，其步驟包含：令使用者旋動其指部以界定邊界；界定一螺旋方程式以擬合於所述邊界；於該螺旋方程式求得至少一特徵參數，並界定所述特徵參數相關於一指部機能；藉之，本發明可將不規則之指部運動範圍，藉由螺旋方程式擬合，以精確表示使用者指部之機能工作空間，並可更進一步予以參數化，以利評估指部之運動能力，藉可有助於臨床應用及手部復健之進行。 The present invention provides a finger functional workspace parameterizing method based on spiral surface function, including the steps of: letting a user rotate its finger to define a boundary; defining a spiral function to fit the boundary; obtaining at least one characteristic parameter from the spiral function, and defining that the characteristic parameter is related to a functionality of finger; the present invention can fit the irregular range of motion of finger by the spiral function in order to display functional workspace of user’s finger accurately, and it can be parameterized further so as to estimate the ability of motion of finger, Which is helpful to proceed with clinical application and hand rehabilitation.
