Facial animation has reached a high level of photorealism. Skin is rendered with grain and translucency, wrinkles are accurate and dynamic. These recent visual improvements are not fully tested for their contribution to the perceived expressiveness of virtual characters. This paper presents a perceptual study assessing the impact of different rendering modes of expressive wrinkles on users’ per...

Theory and experiment are presented to show that an interface between two soft materials under compression can form creases, a type of bifurcation distinct from wrinkles. While creases bifurcate from a state of flat interface by a deformation localized in space and large in amplitude, wrinkles bifurcate from a state of flat interface by a deformation nonlocal in space and infinitesimal in ampli...

In this work we study factors that may influence the identification of single facial actions (e.g., frown or cheek raising), namely their intensity, dynamics and the application of wrinkles. Results of our evaluation study show that single facial actions are better identified when they are dynamic and with higher intensity. On the other hand, intense expressions of single facial actions are per...

Surface wrinkles are interesting since they form spontaneously into well-defined patterns. The mechanism of formation is well-studied and is associated with the development of a critical compressive stress that induces the elastic instability. In this work, we demonstrate surface wrinkles that dynamically change in response to a stimulus can improve interfacial adhesion with a hydrogel surface ...

Editing and retouching facial attributes is a complex task that usually requires human artists to obtain photo-realistic results. Its applications are numerous can be found in several contexts such as cosmetics or digital media retouching, name few. Recently, advancements conditional generative modeling have shown astonishing results at modifying realistic manner. However, current methods still...

Cosmetics is as old as the history of human being. It has been present in human life since the times of the most ancient civilizations. Perfumery is one of the oldest branches of cosmetics. Valerian perfumes found from the Pharaohs’ pyramids, had maintained their aroma. Coriander, Mace oil, cardamom, cinnamon, and juniper were also the favorite materials used for perfumery in ancient Egyptian c...

BACKGROUND There are many filler agents for augmentation of static wrinkles and atrophic scars from synthetic, bio-synthetic, cadaver, animal and human sources. METHODS The current study presents 20 patients whose facial wrinkles and lines were treated by transplantation of autologous cultured fibroblasts. The fibroblast nature of cells was confirmed by immune-staining and flow cytometry. R...

A combination of experiment and theory shows that dielectric elastomers exhibit complex interplay of nonlinear processes. Membranes of a dielectric elastomer are prepared in various states of prestretches by using rigid clamps and mechanical forces. Upon actuation by voltage, some membranes form wrinkles followed by snap-through instability, others form wrinkles without the snap-through instabi...