Search Results for author: Weichen Dai

Found 6 papers, 2 papers with code

HG3-NeRF: Hierarchical Geometric, Semantic, and Photometric Guided Neural Radiance Fields for Sparse View Inputs

no code implementations22 Jan 2024 Zelin Gao, Weichen Dai, Yu Zhang

We propose Hierarchical Geometric Guidance (HGG) to incorporate the attachment of Structure from Motion (SfM), namely sparse depth prior, into the scene representations.

Novel View Synthesis

AEGIS-Net: Attention-guided Multi-Level Feature Aggregation for Indoor Place Recognition

1 code implementation15 Dec 2023 Yuhang Ming, Jian Ma, Xingrui Yang, Weichen Dai, Yong Peng, Wanzeng Kong

We evaluate our AEGIS-Net on the ScanNetPR dataset and compare its performance with a pre-deep-learning feature-based method and five state-of-the-art deep-learning-based methods.

Decoder Semantic Segmentation

Adaptive Positional Encoding for Bundle-Adjusting Neural Radiance Fields

no code implementations ICCV 2023 Zelin Gao, Weichen Dai, Yu Zhang

Neural Radiance Fields have shown great potential to synthesize novel views with only a few discrete image observations of the world.

A Multi-spectral Dataset for Evaluating Motion Estimation Systems

1 code implementation1 Jul 2020 Weichen Dai, Yu Zhang, Shenzhou Chen, Donglei Sun, Da Kong

The multi-spectral images, including both color and thermal images in full sensor resolution (640 x 480), are obtained from a standard and a long-wave infrared camera at 32Hz with hardware-synchronization.

Motion Estimation Stereo Matching

Multi-Spectral Visual Odometry without Explicit Stereo Matching

no code implementations23 Aug 2019 Weichen Dai, Yu Zhang, Donglei Sun, Naira Hovakimyan, Ping Li

Moreover, the proposed method can also provide a metric 3D reconstruction in semi-dense density with multi-spectral information, which is not available from existing multi-spectral methods.

3D Reconstruction Stereo Matching +2

RGB-D SLAM in Dynamic Environments Using Point Correlations

no code implementations8 Nov 2018 Weichen Dai, Yu Zhang, Ping Li, Zheng Fang, Sebastian Scherer

This method utilizes the correlation between map points to separate points that are part of the static scene and points that are part of different moving objects into different groups.

Motion Estimation Simultaneous Localization and Mapping

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