Retraction Note: Slope rainfall environment characteristics based on target tracking algorithm and economic efficiency of green city

With the rapid development of China’s economic construction, large-scale infrastructure construction has been carried out in slope area. However, due to poor geological environment, concentrated rainfall, and limited land resources region, a large number toe excavation graded cutting are process engineering construction. The unreasonable method destroys original shape affects stability slope, which brings many disasters loess Therefore, it is great significance analyze influence rainfall on deformation slope. Considering practical application, this paper also considers target tracking FPGA. algorithm FPGA must be reliable, real-time, meet certain accuracy, have operability. proposed combines Harris optical flow method. Firstly, used extract some angle features, then match features more accurately for subsequent video frames. When rotated or twisted, barycenter calculate matching features. Based above research, draws following conclusions: overall level green economy efficiency unbalanced; There U-shaped relationship between urban environmental pollution; main influencing factors industrial structure, degree, opening financial level, human capital.