Sketch express: A sketching interface for facial animation

Alvarez, Xenxo; Orvalho, João; Gutiérrez, Diego; Sousa, Alexandra; Orvalho, Verónica

doi:10.1016/j.cag.2012.03.002

Cited by 18 publications

(16 citation statements)

References 20 publications

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“…User‐guided techniques As an alternative approach, user‐guided tools provide interfaces that do not rely on animation experience. Sketch‐based posing presents a high‐level approach to controlling a 3D model by drawing 2D sketches or actuator paths [SMND08, MAO*12, HMC*15] and has been used to author motion directly [CLS*16, CGNS17, DBB*18]. Though far more accessible to new users, it does rely on the user to ‘recall’ the composition of expression which is slower and less reliable than our ability of facial ‘recognition’ [BY86, GS84, SBOR06].…”

Section: Related Workmentioning

confidence: 99%

User‐Guided Facial Animation through an Evolutionary Interface

Reed

Cosker

2019

Computer Graphics Forum

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We propose a design framework to assist with user‐generated content in facial animation — without requiring any animation experience or ground truth reference. Where conventional prototyping methods rely on handcrafting by experienced animators, our approach looks to encode the role of the animator as an Evolutionary Algorithm acting on animation controls, driven by visual feedback from a user. Presented as a simple interface, users sample control combinations and select favourable results to influence later sampling. Over multiple iterations of disregarding unfavourable control values, parameters converge towards the user's ideal. We demonstrate our framework through two non‐trivial applications: creating highly nuanced expressions by evolving control values of a face rig and non‐linear motion through evolving control point positions of animation curves.

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Section: Related Workmentioning

confidence: 99%

User‐Guided Facial Animation through an Evolutionary Interface

Reed

Cosker

2019

Computer Graphics Forum

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“…5): (1) User testing & free-play (n=78): In user testing the researcher follows a predefined procedure through which the user performs several tasks. In free play on the other hand, user is expected to interact with the product without any procedure or task [4,5,43]. Especially in substudies with preschoolers and children with autism, free play is a common technique;…”

Section: Autistic Users' Involvement and User Samplingmentioning

confidence: 99%

Involving Autistics in User Experience Studies

Çorlu

Taşel

Turan³

et al. 2017

Proceedings of the 2017 Conference on Designing Interactive Systems

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Autism spectrum disorder (ASD) is a neurodevelopmental disorder characterized by various sensory perceptual and cognitive issues that lead to far-reaching challenges in autistics' social and daily lives. Research in HCI is inclined to take an important role in providing support to autistic individuals. However, due to the sensitivity of this user population and the HCI research community's lack of experience in working with neurodiverse users, researchers struggle while conducting and reporting on user studies with autistics. Aiming at analyzing autistics' involvement in design processes and the struggles encountered, here we present a critical review of user experience studies with autistic users conducted between 2010 and 2016. Using qualitative and quantitative approaches together, we revealed common practices and major problems. We provide a twofold contribution to the HCI field: A guideline for conducting studies with users with autism as well as suggestions on how to report these studies.

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“…The synthesis program relies on a library of facial poses. To speed the creation of the initial library, we set up an "Expression Builder" which has interface similar to (Miranda et al, 2012). shows the Expression Builder interface on the left.…”

Section: Implementation Detaimentioning

confidence: 99%

Generating Co-occurring Facial Nonmanual Signals in Synthesized American Sign Language

Schnepp

Wolfe

McDonald

et al. 2013

Proceedings of the International Conference on Computer Graphics Theory and Applications and International Conference on Inform

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Translating between English and American Sign Language (ASL) requires an avatar to display synthesized ASL. Essential to the language are nonmanual signals that appear on the face. In the past, these have posed a difficult challenge for signing avatars. Previous systems were hampered by an inability to portray simultaneously-occurring nonmanual signals on the face. This paper presents a method designed for supporting co-occurring nonmanual signals in ASL. Animations produced by the new system were tested with 40 members of the Deaf community in the United States. Participants identified all of the nonmanual signals even when they co-occurred. Co-occurring question nonmanuals and affect information were distinguishable, which is particularly striking because the two processes move an avatar's brows in a competing manner. This breakthrough brings the state of the art one step closer to the goal of an automatic English-to-ASL translator. .

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Sketch express: A sketching interface for facial animation

Cited by 18 publications

References 20 publications

User‐Guided Facial Animation through an Evolutionary Interface

User‐Guided Facial Animation through an Evolutionary Interface

Involving Autistics in User Experience Studies

Generating Co-occurring Facial Nonmanual Signals in Synthesized American Sign Language

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