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To further promote the development of multimodal point cloud completion, we contribute a large-scale multimodal point cloud completion benchmark ModelNet-MPC with richer shape categories and more diverse test data, which contains nearly…

计算机视觉与模式识别 · 计算机科学 2024-07-11 Xinpu Liu , Baolin Hou , Hanyun Wang , Ke Xu , Jianwei Wan , Yulan Guo

Utilizing trimap guidance and fusing multi-level features are two important issues for trimap-based matting with pixel-level prediction. To utilize trimap guidance, most existing approaches simply concatenate trimaps and images together to…

计算机视觉与模式识别 · 计算机科学 2023-10-05 Weihao Jiang , Dongdong Yu , Zhaozhi Xie , Yaoyi Li , Zehuan Yuan , Hongtao Lu

We present a novel and flexible architecture for point cloud segmentation with dual-representation iterative learning. In point cloud processing, different representations have their own pros and cons. Thus, finding suitable ways to…

计算机视觉与模式识别 · 计算机科学 2021-08-10 Maosheng Ye , Shuangjie Xu , Tongyi Cao , Qifeng Chen

Aiming at drastic speedup for point-feature embeddings at test time, we propose a new framework that uses a pair of multi-layer perceptrons (MLP) and a lookup table (LUT) to transform point-coordinate inputs into high-dimensional features.…

机器学习 · 计算机科学 2020-11-20 Yusuke Sekikawa , Teppei Suzuki

This paper tackles the problem of dynamic scene deblurring. Although end-to-end fully convolutional designs have recently advanced the state-of-the-art in non-uniform motion deblurring, their performance-complexity trade-off is still…

图像与视频处理 · 电气工程与系统科学 2022-01-04 Maitreya Suin , Kuldeep Purohit , A. N. Rajagopalan

The task of point cloud upsampling aims to acquire dense and uniform point sets from sparse and irregular point sets. Although significant progress has been made with deep learning models, state-of-the-art methods require ground-truth dense…

计算机视觉与模式识别 · 计算机科学 2022-06-14 Xinhai Liu , Xinchen Liu , Yu-Shen Liu , Zhizhong Han

MLP-Mixer has newly appeared as a new challenger against the realm of CNNs and transformer. Despite its simplicity compared to transformer, the concept of channel-mixing MLPs and token-mixing MLPs achieves noticeable performance in visual…

计算机视觉与模式识别 · 计算机科学 2022-07-21 Jaesung Choe , Chunghyun Park , Francois Rameau , Jaesik Park , In So Kweon

To perform unconstrained face recognition robust to variations in illumination, pose and expression, this paper presents a new scheme to extract "Multi-Directional Multi-Level Dual-Cross Patterns" (MDML-DCPs) from face images. Specifically,…

计算机视觉与模式识别 · 计算机科学 2015-08-07 Changxing Ding , Jonghyun Choi , Dacheng Tao , Larry S. Davis

Digital Image Correlation (DIC) is a key technique in experimental mechanics for full-field deformation measurement, traditionally relying on subset matching to determine displacement fields. However, selecting optimal parameters like shape…

图像与视频处理 · 电气工程与系统科学 2024-09-04 Boda Li , Shichao Zhou , Qinwei Ma , Shaopeng Ma

Existing learning-based point cloud upsampling methods often overlook the intrinsic data distribution charac?teristics of point clouds, leading to suboptimal results when handling sparse and non-uniform point clouds. We propose a novel…

计算机视觉与模式识别 · 计算机科学 2025-04-17 Yaohui Fang , Xingce Wang

Feature pyramid network (FPN) is a critical component in modern object detection frameworks. The performance gain in most of the existing FPN variants is mainly attributed to the increase of computational burden. An attempt to enhance the…

计算机视觉与模式识别 · 计算机科学 2021-07-06 Mingjian Zhu , Kai Han , Changbin Yu , Yunhe Wang

Token-mixing multi-layer perceptron (MLP) models have shown competitive performance in computer vision tasks with a simple architecture and relatively small computational cost. Their success in maintaining computation efficiency is mainly…

计算机视觉与模式识别 · 计算机科学 2022-02-15 Huangjie Zheng , Pengcheng He , Weizhu Chen , Mingyuan Zhou

Retinal diseases can cause irreversible vision loss in both eyes if not diagnosed and treated early. Since retinal diseases are so complicated, retinal imaging is likely to show two or more abnormalities. Current deep learning techniques…

图像与视频处理 · 电气工程与系统科学 2024-07-04 Tariq M Khan , Shahzaib Iqbal , Syed S. Naqvi , Imran Razzak , Erik Meijering

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…

计算机视觉与模式识别 · 计算机科学 2017-04-12 Charles R. Qi , Hao Su , Kaichun Mo , Leonidas J. Guibas

Point cloud analysis without pose priors is very challenging in real applications, as the orientations of point clouds are often unknown. In this paper, we propose a brand new point-set learning framework PRIN, namely, Pointwise…

计算机视觉与模式识别 · 计算机科学 2019-12-06 Yang You , Yujing Lou , Qi Liu , Yu-Wing Tai , Lizhuang Ma , Cewu Lu , Weiming Wang

In this study, we propose a high-performance disparity (depth) estimation method using dual-pixel (DP) images with few parameters. Conventional end-to-end deep-learning methods have many parameters but do not fully exploit disparity…

计算机视觉与模式识别 · 计算机科学 2024-11-08 Teppei Kurita , Yuhi Kondo , Legong Sun , Takayuki Sasaki , Sho Nitta , Yasuhiro Hashimoto , Yoshinori Muramatsu , Yusuke Moriuchi

In this paper, we present a powerful differentiable surface fitting technique to derive a compact surface representation for a given dense point cloud or mesh, with application in the domains of graphics and CAD/CAM. We have chosen the Loop…

图形学 · 计算机科学 2022-10-20 Tianhao Xie

Deep convolutional neural networks (CNN) have shown their promise as a universal representation for recognition. However, global CNN activations lack geometric invariance, which limits their robustness for classification and matching of…

计算机视觉与模式识别 · 计算机科学 2014-09-10 Yunchao Gong , Liwei Wang , Ruiqi Guo , Svetlana Lazebnik

Infrared and visible image fusion aims to combine complementary information from both modalities to provide a more comprehensive scene understanding. However, due to the significant differences between the two modalities, preserving key…

计算机视觉与模式识别 · 计算机科学 2024-09-19 Jian Xu , Xin He

We study a mini-batch diversification scheme for stochastic gradient descent (SGD). While classical SGD relies on uniformly sampling data points to form a mini-batch, we propose a non-uniform sampling scheme based on the Determinantal Point…

机器学习 · 计算机科学 2017-09-12 Cheng Zhang , Hedvig Kjellstrom , Stephan Mandt