Search Results for author: Qihang Fang

Found 4 papers, 3 papers with code

BID: Boundary-Interior Decoding for Unsupervised Temporal Action Localization Pre-Trainin

no code implementations12 Mar 2024 Qihang Fang, Chengcheng Tang, Shugao Ma, Yanchao Yang

Skeleton-based motion representations are robust for action localization and understanding for their invariance to perspective, lighting, and occlusion, compared with images.

Temporal Action Localization Unsupervised Pre-training

Evaluate Geometry of Radiance Fields with Low-frequency Color Prior

1 code implementation10 Apr 2023 Qihang Fang, Yafei Song, Keqiang Li, Li Shen, Huaiyu Wu, Gang Xiong, Liefeng Bo

From this insight, given a reconstructed density field and observation images, we design a closed-form method to approximate the color field with low-frequency spherical harmonics, and compute the inverse mean residual color.

3D Reconstruction Novel View Synthesis

Towards Accurate Active Camera Localization

1 code implementation8 Dec 2020 Qihang Fang, Yingda Yin, Qingnan Fan, Fei Xia, Siyan Dong, Sheng Wang, Jue Wang, Leonidas Guibas, Baoquan Chen

These approaches localize the camera in the discrete pose space and are agnostic to the localization-driven scene property, which restricts the camera pose accuracy in the coarse scale.

Camera Localization Pose Estimation +1

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