Sketch-Based Skeleton-Driven 2D Animation and MotionCapture

摘要

We present a novel sketch-based 2D animation technique. which allows the user to produce 2D characier animations efficiently. It consists of two parts, sketch based skeietor-driven 2D animation production and 2D motion capture. The user irputs one image of the character and sketches the skeleton for each subsequent frame. The system delorms the character and creates animations automatically. To perform 2D shape deformation, a variable.ength need.e model is introduced to divide the deco-moon .nto two stages skeleton driven deformation and nonlinear deformation in join: areas. It preserves the .ocal geometric features and g.obal area. Compared with. existing approaches, it reduces the computation complexity and produces plausible results Because our technique is skeleton-driven, the motion of character can he captured by tracking joints position and retargeted to a new character. This facilitates the reuse of motion charactenstics contained in existing moving images, maxi ng the cartoon generation easy for artists and novices alike.