The finals of Smartcity competition for chinese graduates raised the curtain in Wuhan University, July.

Our team participated in the task of video anomaly detection. Our algorithm is based on an unsupervised analysis of trajectory features of normal videos, as the number of anomaly videos available is rather small. We first build a mix model composed of normal bases, and calculate the distance of test videos to the learnt bases to make judgement.

Our final performance ranked at the second position. It is a not bad result.