However, the performance of ASM is often influenced by some factors such as the initial location, illumination and so on, which will frequently lead to the local minima in optimization.

• 然而，由于受到初始情况、光照等诸多因素的影响，主动形状建模经常会陷入最优化过程中的局部最小问题，从而导致其性能下降。