目標モデル形状に基づく顔陰影編集システム

摘要

Facial information is a principal component in nonverbal communication, and it gives a wide variety of impressions to the observer. If we can clarify the relationships between facial information and impression, we would be able to easily input the right visual information on a face and thus manipulate impression given from a facial expression. We focused on the shading on the face. Although the ability to control the perceived shape by manipulating shading, e.g., through makeup, qualitatively evaluating this has not been easy. To find a way to do this, we developed a system for editing shading on a face by using shading generated from a target model with a known 3-D shape. We have also developed a qualitative method to evaluate the relationship between the shading and the perceived shape. We first describe the system in detail, and then demonstrate how it is effective at providing both qualitative and quantitative evaluations from real images.%我々は他者とのコミュニケーションにおいて，相互の意図や内部状態を言語情報だけでなく非言語情報も含めて総合的に判断している．このような言葉によらないコミュニケーションには，身振り手振りや相槌などがあり，特に重要なチャネルの一つとして顔情報が挙げられる．人は顔から多くの情報を得ているが，本論文では，この人が受ける顔情報を，顔そのものが持っている静的な構造である容貌と動的に変化する表情の二つに分け，前者を議論の対象とする．