Ostermann J., "Animation of synthetic faces in MPEG4 ", Proc. Computer Animation 98, pp. 49-55, 1998.  Home/Search   Document Not in Database   Summary   Related Articles   Check

....results than blending. Fig. 8 shows the sequence of mouth shapes selected from the database, plus the transition shapes, marked with a white T. D. Other Facial Parts We handle the animation of other facial parts using a model similar to the one developed for the MPEG4 facial animation subsystem [12]. Special markers are put in the text to control amplitude, length, onset, and offset of facial animations. This is an easy way to provide synchronization of conversational cues, such as eye and eyebrow movements, eye blinks, or head movements that accompany the spoken text. As for the base face, ....

J. Ostermann, "Animation of synthetic faces in MPEG-4," in Proc. Computer Animation, June 1998, pp. 49--55.

....to guarantee smooth lip movements. It also checks the parameters of visual appearance to make sure that there are no discontinuities in the appearance (see Figure 6) We handle the animation of other facial parts using a model similar to the one developed for the MPEG4 facial animation subsystem [9]. Special markers are put in the text to control amplitude, length, onset and offset of facial animations. 5.1. Rendering A frame of the final animation can be generated when bitmaps of all the face parts have been retrieved from the database. The bitmap of the base face is first copied into the ....

Ostermann, J., "Animation of Synthetic Faces in MPEG-4", Proc. of Computer Animation, IEEE Computer Society, June 1998, pp.49-55. Acknowledgement We thank J. Ostermann, J. Schroeder and M. Potamianos for countless helpful discussions and comments.

....to improve the performance. This method is limited to analyzing single facial expressions such as a smile, or a frown. For animating facial speech, these descriptors, or action units are still insufficient. The MPEG4 standard extends this system to derive a set of Facial Animation Parameters (PAR) [24]. In addition to single expressions, facial speech is achieved by a set of viseme components. Systems that use this standard have achieve good compression for facial animation [10] However, it is difficult to reliably estimate these physical facial parameters from video, and subtle details of ....

J Ostermann, "Animation of Synthetic Faces in MPEG-4", Computer Animation, pp.49-51, Philadelphia, PA, June8-10, 1998.

....to improve the performance. This method is limited to analyzing single facial expressions such as a smile, or a frown. For animating facial speech, these descriptors, or action units are still insufficient. The MPEG4 standard extends this system to derive a set of Facial Animation Parameters (PAR) [24]. In addition to single expressions, facial speech is achieved by a set of viseme components. Systems that use this standard have achieve good compression for facial animation [10] However, it is difficult to reliably estimate these physical facial parameters from video, and subtle details of ....

J Ostermann, "Animation of Synthetic Faces in MPEG-4", Computer Animation, pp.49-51, Philadelphia, PA, June8-10, 1998.

....vision, MPEG 4 1 INTRODUCTION Computer simulation of human faces capable of reflecting mouth movements and emotional states has been a flourishing research area for a long time. A number of papers have been published, resulting in a large number of facial models and several animation systems [1, 2, 3, 4, 5, 6, 7]. The interest in this technology has been clearly shown by the inclusion of animated face features and animated 2D meshes using the MPEG 4 standard [8] Moreover, the usefulness of this technology has been proven by a set of perceptual experiments which showed that facial animation can provide ....

J. Ostermann, 1998, "Animation of synthetic face in MPEG-4," in proceedings of Computer Animation, Philadelphia, PA.

.... building systems for many applications by allowing flexibility in the system configurations, by providing various levels of interactivity with audio visual content of a scene, and by integrating as many as possible audio visual data types like natural and synthetic audio, video and graphics [1] 2][3]. MPEG 4 will become an International Standard in spring 1999, just in time for the new faster and more powerful media processors and in time for using the upcoming narrow and broadband wired and wireless networks for audio visual applications like database browsing, information retrieval and ....

....(BIFS) BIFS also allows to animate objects and their properties. Special 3D objects are human faces and bodies. MPEG 4 allows using decoder resident proprietary models as well as to transmit 3D models to the decoder such that the encoder can predict the quality of the presentation at the decoder [3]. The integration of TTS and facial animation is currently limited. Non speech related animation parameters are transmitted using a synchronous stream. Since the timing of the TTS is unknown to the sender, synchronization of facial expressions with mouth shapes and sound cannot be achieved. Here, ....

J. Ostermann, "Animation of synthetic faces in MPEG-4", Computer Animation 98, pp. 49-55, Philadelphia, June 1998.

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Ostermann J., "Animation of synthetic faces in MPEG4 ", Proc. Computer Animation 98, pp. 49-55, 1998.

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J. Ostermann, "Animation of synthetic faces in MPEG4, " in Computer Animation, 1998, pp. 49--55.

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