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In this paper, we propose novel edge and corner detection algorithms for unorganized point clouds. Our edge detection method evaluates symmetry in a local neighborhood and uses an adaptive density based threshold to differentiate 3D edge…

Computer Vision and Pattern Recognition · Computer Science 2018-09-28 Syeda Mariam Ahmed , Yan Zhi Tan , Chee Meng Chew , Abdullah Al Mamun , Fook Seng Wong

Point cloud salient object detection has attracted the attention of researchers in recent years. Since existing works do not fully utilize the geometry context of 3D objects, blurry boundaries are generated when segmenting objects with…

Computer Vision and Pattern Recognition · Computer Science 2025-02-25 Chen Wang , Liyuan Zhang , Le Hui , Qi Liu , Yuchao Dai

LiDAR point clouds have become the most common data source in autonomous driving. However, due to the sparsity of point clouds, accurate and reliable detection cannot be achieved in specific scenarios. Because of their complementarity with…

Computer Vision and Pattern Recognition · Computer Science 2024-01-23 Leichao Cui , Xiuxian Li , Min Meng , Xiaoyu Mo

Recent progress on 2D object detection has featured Cascade RCNN, which capitalizes on a sequence of cascade detectors to progressively improve proposal quality, towards high-quality object detection. However, there has not been evidence in…

Computer Vision and Pattern Recognition · Computer Science 2022-11-16 Qi Cai , Yingwei Pan , Ting Yao , Tao Mei

3D object detection based on LiDAR point clouds is a crucial module in autonomous driving particularly for long range sensing. Most of the research is focused on achieving higher accuracy and these models are not optimized for deployment on…

Computer Vision and Pattern Recognition · Computer Science 2021-07-13 Sambit Mohapatra , Senthil Yogamani , Heinrich Gotzig , Stefan Milz , Patrick Mader

In this paper, we propose a object detection method expressed as rotated bounding box to solve grasping challenge in the scenes where rigid objects and soft objects are mixed together. Compared with traditional detection methods, this…

Robotics · Computer Science 2019-09-23 Xiaoman Wang , Xin Jiang , Jie Zhao , Shengfan Wang , Yunhui Liu

This paper investigates multi-scale feature approximation and transferable features for object detection from point clouds. Multi-scale features are critical for object detection from point clouds. However, multi-scale feature learning…

Computer Vision and Pattern Recognition · Computer Science 2025-08-19 Hao Peng , Hong Sang , Yajing Ma , Ping Qiu , Chao Ji

With the increased availability of 3D scanning technology, point clouds are moving into the focus of computer vision as a rich representation of everyday scenes. However, they are hard to handle for machine learning algorithms due to their…

Computer Vision and Pattern Recognition · Computer Science 2019-08-27 Sergey Prokudin , Christoph Lassner , Javier Romero

LiDAR is an important method for autonomous driving systems to sense the environment. The point clouds obtained by LiDAR typically exhibit sparse and irregular distribution, thus posing great challenges to the detection of 3D objects,…

Computer Vision and Pattern Recognition · Computer Science 2020-10-28 Tai Wang , Xinge Zhu , Dahua Lin

We propose a neural network for 3D point cloud processing that exploits `spherical' convolution kernels and octree partitioning of space. The proposed metric-based spherical kernels systematically quantize point neighborhoods to identify…

Computer Vision and Pattern Recognition · Computer Science 2018-05-23 Huan Lei , Naveed Akhtar , Ajmal Mian

We develop new representations and algorithms for three-dimensional (3D) object detection and spatial layout prediction in cluttered indoor scenes. We first propose a clouds of oriented gradient (COG) descriptor that links the 2D appearance…

Computer Vision and Pattern Recognition · Computer Science 2019-06-12 Zhile Ren , Erik B. Sudderth

The complexity of clouds, particularly in terms of texture detail at high resolutions, has not been well explored by most existing cloud detection networks. This paper introduces the High-Resolution Cloud Detection Network (HR-cloud-Net),…

Computer Vision and Pattern Recognition · Computer Science 2024-07-11 Jingsheng Li , Tianxiang Xue , Jiayi Zhao , Jingmin Ge , Yufang Min , Wei Su , Kun Zhan

3D object recognition accuracy can be improved by learning the multi-scale spatial features from 3D spatial geometric representations of objects such as point clouds, 3D models, surfaces, and RGB-D data. Current deep learning approaches…

Computer Vision and Pattern Recognition · Computer Science 2019-05-07 Sambit Ghadai , Xian Lee , Aditya Balu , Soumik Sarkar , Adarsh Krishnamurthy

Object detection in point cloud data is one of the key components in computer vision systems, especially for autonomous driving applications. In this work, we present Voxel-FPN, a novel one-stage 3D object detector that utilizes raw data…

Computer Vision and Pattern Recognition · Computer Science 2019-07-17 Bei Wang , Jianping An , Jiayan Cao

We present a novel representation of compressed data structure for simultaneous bounding volume hierarchy (BVH) traversals like they appear for instance in collision detection & proximity query. The main idea is to compress bounding volume…

Graphics · Computer Science 2020-12-11 Toni Tan , Rene Weller , Gabriel Zachmann

We present a novel lightweight convolutional neural network for point cloud analysis. In contrast to many current CNNs which increase receptive field by downsampling point cloud, our method directly operates on the entire point sets without…

Computer Vision and Pattern Recognition · Computer Science 2021-09-27 Xu Wang , Yuyan Li , Ye Duan

Semantic 3D building models are widely available and used in numerous applications. Such 3D building models display rich semantics but no fa\c{c}ade openings, chiefly owing to their aerial acquisition techniques. Hence, refining models'…

Computer Vision and Pattern Recognition · Computer Science 2023-03-13 Olaf Wysocki , Eleonora Grilli , Ludwig Hoegner , Uwe Stilla

Object oriented bounding box tree (OBB-Tree for short) has many applications in collision detection, real-time rendering, etc. It has a wide range of applications. The construction of the hierarchical directed bounding box of the solid mesh…

Graphics · Computer Science 2022-03-22 Rui Wang , Wei Hua , Gaofeng Xu , Yuchi Huo , Hujun Bao

3D object detection is a crucial research topic in computer vision, which usually uses 3D point clouds as input in conventional setups. Recently, there is a trend of leveraging multiple sources of input data, such as complementing the 3D…

Computer Vision and Pattern Recognition · Computer Science 2022-10-05 Yikai Wang , TengQi Ye , Lele Cao , Wenbing Huang , Fuchun Sun , Fengxiang He , Dacheng Tao

Point cloud is an important type of geometric data structure. Due to its irregular format, most researchers transform such data to regular 3D voxel grids or collections of images. This, however, renders data unnecessarily voluminous and…

Computer Vision and Pattern Recognition · Computer Science 2017-04-12 Charles R. Qi , Hao Su , Kaichun Mo , Leonidas J. Guibas