Search Results for author: Kai Cheng

Found 19 papers, 5 papers with code

A Universal Framework for Compressing Embeddings in CTR Prediction

1 code implementation21 Feb 2025 Kefan Wang, Hao Wang, Kenan Song, Wei Guo, Kai Cheng, Zhi Li, Yong liu, Defu Lian, Enhong Chen

Then, we integrate a contrastive learning mechanism to ensure a uniform distribution of quantized codes, enhancing the distinctiveness of embeddings.

Click-Through Rate Prediction Contrastive Learning +1

ResGS: Residual Densification of 3D Gaussian for Efficient Detail Recovery

no code implementations10 Dec 2024 Yanzhe Lyu, Kai Cheng, Xin Kang, Xuejin Chen

To address this, we introduce a novel densification method, residual split, which adds a downscaled Gaussian as a residual.

Novel View Synthesis

GlossyGS: Inverse Rendering of Glossy Objects with 3D Gaussian Splatting

no code implementations17 Oct 2024 Shuichang Lai, Letian Huang, Jie Guo, Kai Cheng, Bowen Pan, Xiaoxiao Long, Jiangjing Lyu, Chengfei Lv, Yanwen Guo

However, these techniques generally have difficulty in producing believable geometries and materials for glossy objects, a challenge that stems from the inherent ambiguities of inverse rendering.

Inverse Rendering NeRF

GaussianRoom: Improving 3D Gaussian Splatting with SDF Guidance and Monocular Cues for Indoor Scene Reconstruction

no code implementations30 May 2024 Haodong Xiang, Xinghui Li, Xiansong Lai, Wanting Zhang, Zhichao Liao, Kai Cheng, Xueping Liu

However, when it comes to indoor scenes with a significant number of textureless areas, 3DGS yields incomplete and noisy reconstruction results due to the poor initialization of the point cloud and under-constrained optimization.

3DGS Indoor Scene Reconstruction +3

DC-Gaussian: Improving 3D Gaussian Splatting for Reflective Dash Cam Videos

1 code implementation27 May 2024 Linhan Wang, Kai Cheng, Shuo Lei, Shengkun Wang, Wei Yin, Chenyang Lei, Xiaoxiao Long, Chang-Tien Lu

Dash cam videos often suffer from severe obstructions such as reflections and occlusions on the windshields, which significantly impede the application of neural rendering techniques.

3DGS Autonomous Vehicles +2

GaussianPro: 3D Gaussian Splatting with Progressive Propagation

1 code implementation22 Feb 2024 Kai Cheng, Xiaoxiao Long, Kaizhi Yang, Yao Yao, Wei Yin, Yuexin Ma, Wenping Wang, Xuejin Chen

The advent of 3D Gaussian Splatting (3DGS) has recently brought about a revolution in the field of neural rendering, facilitating high-quality renderings at real-time speed.

3DGS Neural Rendering +1

UC-NeRF: Neural Radiance Field for Under-Calibrated Multi-view Cameras in Autonomous Driving

no code implementations28 Nov 2023 Kai Cheng, Xiaoxiao Long, Wei Yin, Jin Wang, Zhiqiang Wu, Yuexin Ma, Kaixuan Wang, Xiaozhi Chen, Xuejin Chen

Multi-camera setups find widespread use across various applications, such as autonomous driving, as they greatly expand sensing capabilities.

Autonomous Driving Depth Estimation +2

Configurable Spatial-Temporal Hierarchical Analysis for Flexible Video Anomaly Detection

no code implementations12 May 2023 Kai Cheng, Xinhua Zeng, Yang Liu, Tian Wang, Chengxin Pang, Jing Teng, Zhaoyang Xia, Jing Liu

Since the anomaly set is complicated and unbounded, our STHA can adjust its detection ability to adapt to the human detection demands and the complexity degree of anomaly that happened in the history of a scene.

Anomaly Detection Human Detection +2

Exploiting Correspondences with All-pairs Correlations for Multi-view Depth Estimation

no code implementations5 May 2022 Kai Cheng, Hao Chen, Wei Yin, Guangkai Xu, Xuejin Chen

However, multi-view depth estimation is fundamentally a correspondence-based optimization problem, but previous learning-based methods mainly rely on predefined depth hypotheses to build correspondence as the cost volume and implicitly regularize it to fit depth prediction, deviating from the essence of iterative optimization based on stereo correspondence.

All Depth Estimation +2

Sliced gradient-enhanced Kriging for high-dimensional function approximation

no code implementations5 Apr 2022 Kai Cheng, Ralf Zimmermann

Gradient-enhanced Kriging (GE-Kriging) is a well-established surrogate modelling technique for approximating expensive computational models.

Towards 3D Scene Reconstruction from Locally Scale-Aligned Monocular Video Depth

no code implementations3 Feb 2022 Guangkai Xu, Wei Yin, Hao Chen, Chunhua Shen, Kai Cheng, Feng Wu, Feng Zhao

However, in some video-based scenarios such as video depth estimation and 3D scene reconstruction from a video, the unknown scale and shift residing in per-frame prediction may cause the depth inconsistency.

3D Scene Reconstruction Depth Completion +1

Gaussian Filter in CRF Based Semantic Segmentation

no code implementations2 Sep 2017 Yichi Gu, Qisheng Wu, Jing Li, Kai Cheng

Artificial intelligence is making great changes in academy and industry with the fast development of deep learning, which is a branch of machine learning and statistical learning.

object-detection Object Detection +2

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