This article introduces how to use Fourier Description to descript a recognited-object in a digital image and according to IDFT of Fourier Description transformation form,proposes the use artificial nerual network carries on the recognition.

• 文章介绍了对数字图象中待识别的目标用傅立叶描述子(FD)进行描述,并根据对FD的IDFT变换的形式,提出使用人工神经网络进行识别。