Toothdoll

The 3D short animated film Toothdoll is a master degree thesis film. The film runs five minutes and ten seconds including credits. All the scenes in this film happen indoors. The story is between a little boy, Ushka and his grandmother. After the little boy’s first tooth comes out, he expects the new tooth sprout. With this little story, I wanted to recreate this normal but important first-time experience in our childhood. Throughout the entire production, the primary goal for me to tell a clear and solid story to my audiences. No matter how interesting the story is, I think the most important thing is to make sure it is clear enough for your audiences to understand. Besides the story or the script, I also want to enhance my animation skills during the entire production. Although I am not a technical person, I wanted to try my best to solve every problem on my own. In the beginning, I spent a few weeks to build up my story and planned to animate with a hybrid of 2D animation with 3D animation. I tried to explore some more possibilities via different mediums to make an animated film; however, because of the time frame and also the consideration of unified style, I chose to make use of 3D animation only. This paper will discuss my entire process and details in my production. I will talk about the problems I came across; and how I got over them

T-spline based unifying registration procedure for free-form surface workpieces in intelligent CMM

With the development of the modern manufacturing industry, the free-form surface is widely used in various fields, and the automatic detection of a free-form surface is an important function of future intelligent three-coordinate measuring machines (CMMs). To improve the intelligence of CMMs, a new visual system is designed based on the characteristics of CMMs. A unified model of the free-form surface is proposed based on T-splines. A discretization method of the T-spline surface formula model is proposed. Under this discretization, the position and orientation of the workpiece would be recognized by point cloud registration. A high accuracy evaluation method is proposed between the measured point cloud and the T-spline surface formula. The experimental results demonstrate that the proposed method has the potential to realize the automatic detection of different free-form surfaces and improve the intelligence of CMMs