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In this paper, we propose a new global geometry constraint for depth completion. By assuming depth maps often lay on low dimensional subspaces, a dense depth map can be approximated by a weighted sum of full-resolution principal depth…

Computer Vision and Pattern Recognition · Computer Science 2020-12-03 Yiran Zhong , Yuchao Dai , Hongdong Li

Dense depth completion is essential for autonomous systems and 3D reconstruction. In this paper, a lightweight yet efficient network (S\&CNet) is proposed to obtain a good trade-off between efficiency and accuracy for the dense depth…

Image and Video Processing · Electrical Eng. & Systems 2019-08-30 Lei Zhang , Weihai Chen , Chao Hu , Xingming Wu , Zhengguo Li

Depth completion aims at predicting dense pixel-wise depth from an extremely sparse map captured from a depth sensor, e.g., LiDARs. It plays an essential role in various applications such as autonomous driving, 3D reconstruction, augmented…

Computer Vision and Pattern Recognition · Computer Science 2022-08-30 Junjie Hu , Chenyu Bao , Mete Ozay , Chenyou Fan , Qing Gao , Honghai Liu , Tin Lun Lam

Recent advances in mobile mapping systems have greatly enhanced the efficiency and convenience of acquiring urban 3D data. These systems utilize LiDAR sensors mounted on vehicles to capture vast cityscapes. However, a significant challenge…

Computer Vision and Pattern Recognition · Computer Science 2024-08-07 Yu Feng , Yiming Xu , Yan Xia , Claus Brenner , Monika Sester

Transparent and specular objects are frequently encountered in daily life, factories, and laboratories. However, due to the unique optical properties, the depth information on these objects is usually incomplete and inaccurate, which poses…

Computer Vision and Pattern Recognition · Computer Science 2025-03-24 Yizhe Liu , Tong Jia , Da Cai , Hao Wang , Dongyue Chen

Depth estimation features are helpful for 3D recognition. Commodity-grade depth cameras are able to capture depth and color image in real-time. However, glossy, transparent or distant surface cannot be scanned properly by the sensor. As a…

Computer Vision and Pattern Recognition · Computer Science 2022-06-10 Yu-Kai Huang , Tsung-Han Wu , Yueh-Cheng Liu , Winston H. Hsu

Dense depth cues are important and have wide applications in various computer vision tasks. In autonomous driving, LIDAR sensors are adopted to acquire depth measurements around the vehicle to perceive the surrounding environments. However,…

Computer Vision and Pattern Recognition · Computer Science 2020-02-21 Zixuan Huang , Junming Fan , Shenggan Cheng , Shuai Yi , Xiaogang Wang , Hongsheng Li

Transparent and reflective objects in everyday environments pose significant challenges for depth sensors due to their unique visual properties, such as specular reflections and light transmission. These characteristics often lead to…

Robotics · Computer Science 2025-06-12 Guanghu Xie , Zhiduo Jiang , Yonglong Zhang , Yang Liu , Zongwu Xie , Baoshi Cao , Hong Liu

To fully exploit depth cues in Camouflaged Object Detection (COD), we present DGA-Net, a specialized framework that adapts the Segment Anything Model (SAM) via a novel ``depth prompting" paradigm. Distinguished from existing approaches that…

Computer Vision and Pattern Recognition · Computer Science 2026-01-07 Yuetong Li , Qing Zhang , Yilin Zhao , Gongyang Li , Zeming Liu

In this paper, we propose a geometric neural network with edge-aware refinement (GeoNet++) to jointly predict both depth and surface normal maps from a single image. Building on top of two-stream CNNs, GeoNet++ captures the geometric…

Computer Vision and Pattern Recognition · Computer Science 2020-12-15 Xiaojuan Qi , Zhengzhe Liu , Renjie Liao , Philip H. S. Torr , Raquel Urtasun , Jiaya Jia

Depth completion aims to recover dense depth maps from sparse ones, where color images are often used to facilitate this task. Recent depth methods primarily focus on image guided learning frameworks. However, blurry guidance in the image…

Computer Vision and Pattern Recognition · Computer Science 2024-02-29 Zhiqiang Yan , Xiang Li , Le Hui , Zhenyu Zhang , Jun Li , Jian Yang

In this paper, we propose a novel method for the challenging problem of guided depth map super-resolution, called PAGNet. It is based on residual dense networks and involves the attention mechanism to suppress the texture copying problem…

Computer Vision and Pattern Recognition · Computer Science 2019-11-25 Arpit Bansal , Sankaraganesh Jonna , Rajiv R. Sahay

Saliency detection based on the complementary information from RGB images and depth maps has recently gained great popularity. In this paper, we propose Complementary Attention and Adaptive Integration Network (CAAI-Net), a novel RGB-D…

Computer Vision and Pattern Recognition · Computer Science 2021-02-09 Hong-Bo Bi , Zi-Qi Liu , Kang Wang , Bo Dong , Geng Chen , Ji-Quan Ma

Estimating the complete 3D point cloud from an incomplete one is a key problem in many vision and robotics applications. Mainstream methods (e.g., PCN and TopNet) use Multi-layer Perceptrons (MLPs) to directly process point clouds, which…

Computer Vision and Pattern Recognition · Computer Science 2020-07-21 Haozhe Xie , Hongxun Yao , Shangchen Zhou , Jiageng Mao , Shengping Zhang , Wenxiu Sun

Recently, a series of works in computer vision have shown promising results on various image and video understanding tasks using self-attention. However, due to the quadratic computational and memory complexities of self-attention, these…

Computer Vision and Pattern Recognition · Computer Science 2020-10-15 Zhuoran Shen , Irwan Bello , Raviteja Vemulapalli , Xuhui Jia , Ching-Hui Chen

Point cloud shape completion is a challenging problem in 3D vision and robotics. Existing learning-based frameworks leverage encoder-decoder architectures to recover the complete shape from a highly encoded global feature vector. Though the…

Computer Vision and Pattern Recognition · Computer Science 2020-07-07 Wenxiao Zhang , Qingan Yan , Chunxia Xiao

Depth completion aims to recover a dense depth map from the sparse depth data and the corresponding single RGB image. The observed pixels provide the significant guidance for the recovery of the unobserved pixels' depth. However, due to the…

Computer Vision and Pattern Recognition · Computer Science 2021-06-09 Shanshan Zhao , Mingming Gong , Huan Fu , Dacheng Tao

There are two main issues in RGB-D salient object detection: (1) how to effectively integrate the complementarity from the cross-modal RGB-D data; (2) how to prevent the contamination effect from the unreliable depth map. In fact, these two…

Computer Vision and Pattern Recognition · Computer Science 2021-09-01 Zuyao Chen , Runmin Cong , Qianqian Xu , Qingming Huang

Point cloud completion referring to completing 3D shapes from partial 3D point clouds is a fundamental problem for 3D point cloud analysis tasks. Benefiting from the development of deep neural networks, researches on point cloud completion…

Computer Vision and Pattern Recognition · Computer Science 2022-03-17 Jun Wang , Ying Cui , Dongyan Guo , Junxia Li , Qingshan Liu , Chunhua Shen

Although existing monocular depth estimation methods have made great progress, predicting an accurate absolute depth map from a single image is still challenging due to the limited modeling capacity of networks and the scale ambiguity…

Computer Vision and Pattern Recognition · Computer Science 2022-10-07 Jie Xiang , Yun Wang , Lifeng An , Haiyang Liu , Zijun Wang , Jian Liu