Computer Aided Industrial Design Technology for Integrating Feature Point Coordinate Calculation in Toy Design

In the toy design process, advanced methods are urgently needed to improve its efficiency. A computer-aided design method for fusion feature point coordinate calculation is proposed, which uses B-spline curve fitting method to optimize the processing of input images and resample the input images. The proposed method effectively improves the efficiency of image preprocessing and enhances the effectiveness of modeling. The experimental results showed that compared to the modeling methods based on rotation curve construction and internal point dilation, the number of resampled sampling points reached 148, an increase of 76 and 87. The total error rate decreased to 6.3%, with a decrease of 54.2% and 78.1%. Meanwhile, the average modeling time of the research method was reduced to 6.14 s, which was 1.02 s and 2.01 s less than the other two methods, respectively. In terms of accuracy, the research method achieved an accuracy of 95.6%. In addition, the 3D model generated by this method is extremely close to reality, bringing better visual effects and user experience to toy design, effectively improving the efficiency of toy design.