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Communication Dans Un Congrès Année : 2022

Impact of Self-Contacts on Perceived Pose Equivalences

Résumé

Defining equivalences between poses of different human characters is an important problem for imitation research, human pose recognition and deformation transfer. However, pose equivalence is a subjective information that depends on context and on the morphology of the characters. A common hypothesis is that interactions between body surfaces, such as self-contacts, are important attributes of human poses, and are therefore consistently included in animation approaches aiming at retargeting human motions. However, some of these self-contacts are only present because of the morphology of the character and are not important to the pose, e.g. contacts between the upper arms and the torso during a standing A-pose. In this paper, we conduct a first study towards the goal of understanding the impact of self-contacts between body surfaces on perceived pose equivalences. More specifically, we focus on contacts between the arms or hands and the upper body, which are frequent in everyday human poses. We conduct a study where we present to observers two models of a character mimicking the pose of a source character, one with the same self-contacts as the source, and one with one self-contact removed, and ask observers to select which model best mimics the source pose. We show that while poses with different self-contacts are considered different by observers in most cases, this effect is stronger for self-contacts involving the hands than for those involving the arms
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hal-03817534 , version 1 (10-11-2022)

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Jean Basset, Badr Ouannas, Ludovic Hoyet, Franck Multon, Stefanie Wuhrer. Impact of Self-Contacts on Perceived Pose Equivalences. MIG 2022 - ACM SIGGRAPH Conference on Motion, Interaction and Games, Nov 2022, Guanajuato Mexico, Mexico. pp.1-10, ⟨10.1145/3561975.3562946⟩. ⟨hal-03817534⟩
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