no code implementations • 14 Dec 2023 • Hao Ouyang, Kathryn Heal, Stephen Lombardi, Tiancheng Sun
We introduce Text2Immersion, an elegant method for producing high-quality 3D immersive scenes from text prompts.
no code implementations • 12 Jul 2023 • Nithin Raghavan, Yan Xiao, Kai-En Lin, Tiancheng Sun, Sai Bi, Zexiang Xu, Tzu-Mao Li, Ravi Ramamoorthi
In this paper, we demonstrate a hybrid neural-wavelet PRT solution to high-frequency indirect illumination, including glossy reflection, for relighting with changing view.
no code implementations • 26 Jul 2021 • Tiancheng Sun, Kai-En Lin, Sai Bi, Zexiang Xu, Ravi Ramamoorthi
Our system is trained on a large number of synthetic models, and can generalize to different synthetic and real portraits under various lighting conditions.
no code implementations • 17 Oct 2020 • Tiancheng Sun, Zexiang Xu, Xiuming Zhang, Sean Fanello, Christoph Rhemann, Paul Debevec, Yun-Ta Tsai, Jonathan T. Barron, Ravi Ramamoorthi
The light stage has been widely used in computer graphics for the past two decades, primarily to enable the relighting of human faces.
no code implementations • 5 Oct 2020 • Shilin Zhu, Zexiang Xu, Tiancheng Sun, Alexandr Kuznetsov, Mark Meyer, Henrik Wann Jensen, Hao Su, Ravi Ramamoorthi
To fully make use of our deep neural network, we partition the scene space into an adaptive hierarchical grid, in which we apply our network to reconstruct high-quality sampling distributions for any local region in the scene.
1 code implementation • 9 Aug 2020 • Xiuming Zhang, Sean Fanello, Yun-Ta Tsai, Tiancheng Sun, Tianfan Xue, Rohit Pandey, Sergio Orts-Escolano, Philip Davidson, Christoph Rhemann, Paul Debevec, Jonathan T. Barron, Ravi Ramamoorthi, William T. Freeman
In particular, we show how to fuse previously seen observations of illuminants and views to synthesize a new image of the same scene under a desired lighting condition from a chosen viewpoint.
no code implementations • 2 May 2019 • Tiancheng Sun, Jonathan T. Barron, Yun-Ta Tsai, Zexiang Xu, Xueming Yu, Graham Fyffe, Christoph Rhemann, Jay Busch, Paul Debevec, Ravi Ramamoorthi
Lighting plays a central role in conveying the essence and depth of the subject in a portrait photograph.
no code implementations • ICCV 2017 • Tiancheng Sun, Yifan Peng, Wolfgang Heidrich
Image aberrations can cause severe degradation in image quality for consumer-level cameras, especially under the current tendency to reduce the complexity of lens designs in order to shrink the overall size of modules.