Video-based Physical Model Animation
نویسنده
چکیده
The design of Allegra, a new type of instrument for animated graphics is presented. It relies on the cohesive coupling of video image analysis and mass-spring system animation. The system allows for direct manipulation through the modification of a 3D scene or through a live video of the user. GPU-based physics computation enables large scale real-time mass spring system animation that makes the user feel like manipulating a fluid or an elastic matter.
منابع مشابه
Hierarchical Approach for Human Animation from Monocular Images
This paper presents a hierarchical approach towards human posture reconstruction and animation from monocular video images that contain unrestricted human postures and human movements. A parameterized human skeleton model based on anatomy is used with biomechanical constraints encoded in the joints. Hierarchical structure of the model is studied and applied in Criterion Function to recovery the...
متن کاملAnalysis and Synthesis of Facial Expressions
In this chapter, the state-of-the-art in facial animation and expression analysis is reviewed and new techniques for the estimation of 3-D human motion, deformation, and facial expressions from monocular video sequences are presented. Since illumination has a considerable influence on the appearance of objects in a scene, methods for the derivation of photometric scene properties from images ar...
متن کاملMPEG-4 facial animation in video analysis and synthesis
MPEG-4 supports the definition, encoding, transmission, and animation of 3-D head and body models. These features can be used for a variety of different applications ranging from low bit-rate video coding to character and avatar animation. In this paper, an entire system for the analysis of facial expressions from image sequences and their synthesis is presented. New methods for the estimation ...
متن کاملA 3D Animation System with Superimposing CG on a Physical Armature
This paper proposes a new technique to support making 3D character animations with DID (Dinosaur or Direct Input Device). The key idea is to superimpose the image of a CG model on a physical armature using video see-through HeadMounted Display (HMD). Using this technique, animators can easily recreate the posture of the physical armature. In addition, the system shows candidates of postures for...
متن کاملFacial Expression Analysis for Model-Based Coding of Video Sequences
Picture Coding Symposium, pp. 33-38, Berlin, September 1997. In this paper we present an algorithm for the estimation of 3D motion and the analysis of facial expressions of a speaking person. To constrain the exible body motion, a 3D model of the person is used specifying shape, texture and facial motions. The surface of the model is built with triangular Bsplines leading to a small number of c...
متن کامل