Research Of Motion Editing And Synthesis

In most motion editing approaches, the users often make changes on motion capture data by specifying numerical parameters. However, it is not intuitive for a novice to edit motion sequences in motion planning tasks. In this paper, we present two novel methods of motion editing.The first one is motion editing based on movement notation language, in which Labanotation, a well-developed notation language for human movements, is employed as the editing interface. It allows the user to specify the editing requirements via notation score, and the system will semi-automatically generate the desired motion data. The algorithmic steps of its pipeline and the core issues of converting Labanotation into motion sequences are discussed in detail. We show the results of our systems using martial arts motion as its testing data.The second one is motion editing based on 2D sketches. Sketch-drawing is an intuitive and comprehensive means of conveying movement ideas in character animation. We proposed a novel sketch-based approach to assisting the authoring and choreographing of motions at the early stage of animation creation. The animator can interactively and iteratively make changes on the 2D sketch drawing, and the system will automatically transfer the 2D changes to the 3D motion data of current interests. It greatly helps the animator focus on the movement idea development during the evolutionary process of building motion data for articulated characters.In chapter one, we reviewed the history, current situation, and application areas of computer character animation;we introduce the techniques of reuse of motion capture data and motion editing, based on which, the object of our current research is introduced.Chapter two gives a presentation of the related techniques in motion capture data reusing. It also briefly introduces some essences about motion capture data and IK based motion editing. Some problems of current motion editing techniques are demonstrated at the end of this chapter.In chapter three, motion editing based on movement notation language is presented, including framework pipeline, important algorithms, and result demonstration.Chapter four is about 2D sketch based motion editing. There are two parts of thischapter------posture editing and motion adjustment, in which editing pipeline andalgorithms are introduced in detail. Results of this method can be viewed at the end of this chapter.Future works, references, and acknowledgement are listed in the following chapters.