Angel Chang

Hans Fischer Fellow


Simon Fraser University
Eloquent Labs

Computing Science

Prof. Matthias Nießner

Focus Group
Visual Computing

Scientific Report on TUM-IAS Fellowship 2022

We study the emerging research problem of connecting natural language describing objects and scenes to 3D data representations of the objects and scenes. We address resolving textual references of objects to 3D localizations of those objects, dense captioning of 3D scenes, and unified approaches that can both localize and describe objects in 3D scenes by leveraging a speaker-­listener model. full report …

Scientific Report on TUM-IAS Fellowship 2020

We in the Visual Computing Focus Group are research enthusiasts pushing the state of the art at the intersection of computer vision, graphics, and machine learning. Our research mission is to obtain high-quality digital models of the real world, which include detailed geometry, surface texture, and material in both static and dynamic environments. full report

Short CV

Selected Awards

Research Interests

Selected Publications

  • SAPIEN: a SimulAted Part-based Interactive ENvironment
    Fanbo Xiang, Yuzhe Qin, Kaichun Mo, Yikuan Xia, Hao Zhu, Fangchen Liu, Minghua Liu, Hanxiao (Shawn) Jiang, Yifu Yuan, He Wang, Li Yi, Angel X. Chang, Leonidas Guibas, Hao Su
    CVPR 2020
  • Text2Shape: Generating Shapes from Natural Language by Learning Joint Embeddings
    Kevin Chen, Christopher B. Choy, Manolis Savva, Angel X. Chang, Thomas Funkhouser, Silvio Savarese
    ACCV 2018
  • ScanNet: Richly-annotated 3D Reconstructions of Indoor Scenes
    Angela Dai, Angel X. Chang, Manolis Savva, Maciej Halber, Thomas Funkhouser, Matthias Nießner
    CVPR 2017
  • ShapeNet: An Information-Rich 3D Model Repository
    Angel X. Chang, Thomas Funkhouser, Leonidas Guibas, Pat Hanrahan, Qixing Huang, Zimo Li, Silvio Savarese, Manolis Savva, Shuran Song, Hao Su, Jianxiong Xiao, Li Yi, Fisher Yu
    Arxiv 2015
  • Learning Spatial Knowledge for Text to 3D Scene Generation
    Angel X. Chang, Manolis Savva, Christopher D. Manning
    EMNLP 2014

Publications as TUM-IAS-Fellow


  • Chen, Dave Zhenyu; Hu, Ronghang; Chen, Xinlei; Nießner, Matthias; Chang, Angel X.: UniT3D: A Unified Transformer for 3D Dense Captioning and Visual Grounding. , 2022 mehr… BibTeX Volltext ( DOI )


  • Chen, Dave Zhenyu; Wu, Qirui; Nießner, Matthias; Chang, Angel X.: D3Net: A Speaker-Listener Architecture for Semi-supervised Dense Captioning and Visual Grounding in RGB-D Scans. , 2021 mehr… BibTeX Volltext ( DOI )


  • Chen, Dave Zhenyu; Chang, Angel X.; Nießner, Matthias: ScanRefer: 3D Object Localization in RGB-D Scans using Natural Language. 2020 mehr… BibTeX
  • Chen, Dave Zhenyu; Gholami, Ali; Nießner, Matthias; Chang, Angel X.: Scan2Cap: Context-aware Dense Captioning in RGB-D Scans. 2020 mehr… BibTeX


  • Wang, Kai; Lin, Yu-An; Weissmann, Ben; Savva, Manolis; Chang, Angel X.; Ritchie, Daniel: PlanIT. ACM Transactions on Graphics 38 (4), 2019, 1-15 mehr… BibTeX Volltext ( DOI )


  • Armen Avetisyan, Manuel Dahnert, Angela Dai, Manolis Savva, Angel X. Chang, Matthias Nießner: Scan2CAD: Learning CAD Model Alignment in RGB-D Scans. 2018 mehr… BibTeX
  • Mo, Kaichun; Zhu, Shilin; Chang, Angel X.; Yi, Li; Tripathi, Subarna; Guibas, Leonidas J.; Su, Hao: PartNet: A Large-scale Benchmark for Fine-grained and Hierarchical Part-level 3D Object Understanding. 2018 mehr… BibTeX
  • Wang, Kai; Savva, Manolis; Chang, Angel X.; Ritchie, Daniel: Deep convolutional priors for indoor scene synthesis. ACM Transactions on Graphics 37 (4), 2018, 1-14 mehr… BibTeX Volltext ( DOI )