Estimating 3D human pose from 2D images in real world contexts remains a challenge,characterized by unique data constraints.Large general datasets of motion-captured 3D adult human poses paired with 2D images exist,bu...Estimating 3D human pose from 2D images in real world contexts remains a challenge,characterized by unique data constraints.Large general datasets of motion-captured 3D adult human poses paired with 2D images exist,but in many application settings,collection of further motion-captured data is impossible,precluding a straightforward fine-tuning approach to adaptation.We present a method for improving 3D pose estimation transfer learning to domains where there are only depth camera images available as supervision.Our heuristic weakly supervised 3D human pose(HW-HuP)estimation method learns partial pose priors from general 3D human pose datasets and employs weak supervision with depth data to guide learning in an optimization and regression cycle.We show that HW-HuP meaningfully improves upon state-of-the-art models in the adult in-bed setting,as well as on large scale public 3D human pose datasets,under comparable supervision conditions.Our model code and data are publicly available at https://github.com/ostadabbas/hw-hup.A significantly expanded version of this paper,with supplementary material,is available as a preprint on arXiv at https://arxiv.org/abs/2105.10996.展开更多
The 21st Century is a compressed century,where Artificial Intelligence(AI)plays a crucial role in the new phase of digital transformation,disrupting various aspects of society,including art,education,and healthcare.Th...The 21st Century is a compressed century,where Artificial Intelligence(AI)plays a crucial role in the new phase of digital transformation,disrupting various aspects of society,including art,education,and healthcare.Throughout this process,the public has responded with multifarious perspectives.Understanding these viewpoints can help foster responsible AI development by analyzing both its benefits and challenges.While many current studies focus solely on products from OpenAI,such as ChatGPT,this study takes a more comprehensive approach.Data were collected via Application Programming Interface(API)from AI-related subreddits on Reddit,one of the largest social platforms in the United States.This dataset was used to train three topic modeling algorithms:Latent Dirichlet Allocation(LDA),Non-negative Matrix Factorization(NMF),and Bertopic.After comparing these models based on various metrics,topic representation was fine-tuned using a semi-AI approach.Subsequently,a high-dimensional analysis was conducted through techniques such as sankey diagrams,dynamic topic modeling,and sentiment analysis.The results reveal online concerns regarding AI and this study further analyzes users’behaviors and discusses broader implications.展开更多
基金supported by the National Science Foundation under Grant No.1755695.
文摘Estimating 3D human pose from 2D images in real world contexts remains a challenge,characterized by unique data constraints.Large general datasets of motion-captured 3D adult human poses paired with 2D images exist,but in many application settings,collection of further motion-captured data is impossible,precluding a straightforward fine-tuning approach to adaptation.We present a method for improving 3D pose estimation transfer learning to domains where there are only depth camera images available as supervision.Our heuristic weakly supervised 3D human pose(HW-HuP)estimation method learns partial pose priors from general 3D human pose datasets and employs weak supervision with depth data to guide learning in an optimization and regression cycle.We show that HW-HuP meaningfully improves upon state-of-the-art models in the adult in-bed setting,as well as on large scale public 3D human pose datasets,under comparable supervision conditions.Our model code and data are publicly available at https://github.com/ostadabbas/hw-hup.A significantly expanded version of this paper,with supplementary material,is available as a preprint on arXiv at https://arxiv.org/abs/2105.10996.
文摘The 21st Century is a compressed century,where Artificial Intelligence(AI)plays a crucial role in the new phase of digital transformation,disrupting various aspects of society,including art,education,and healthcare.Throughout this process,the public has responded with multifarious perspectives.Understanding these viewpoints can help foster responsible AI development by analyzing both its benefits and challenges.While many current studies focus solely on products from OpenAI,such as ChatGPT,this study takes a more comprehensive approach.Data were collected via Application Programming Interface(API)from AI-related subreddits on Reddit,one of the largest social platforms in the United States.This dataset was used to train three topic modeling algorithms:Latent Dirichlet Allocation(LDA),Non-negative Matrix Factorization(NMF),and Bertopic.After comparing these models based on various metrics,topic representation was fine-tuned using a semi-AI approach.Subsequently,a high-dimensional analysis was conducted through techniques such as sankey diagrams,dynamic topic modeling,and sentiment analysis.The results reveal online concerns regarding AI and this study further analyzes users’behaviors and discusses broader implications.
