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相关论文: Point Cloud Quality Assessment: Dataset Constructi…

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This paper focuses on a novel approach for false-positive reduction (FPR) of nodule candidates in Computer-aided detection (CADe) systems following the suspicious lesions detection stage. Contrary to typical decisions in medical image…

图像与视频处理 · 电气工程与系统科学 2021-06-11 Ivan Drokin , Elena Ericheva

Measuring the perceptual quality of images automatically is an essential task in the area of computer vision, as degradations on image quality can exist in many processes from image acquisition, transmission to enhancing. Many Image Quality…

计算机视觉与模式识别 · 计算机科学 2022-05-24 Jing Wang , Haotian Fan , Xiaoxia Hou , Yitian Xu , Tao Li , Xuechao Lu , Lean Fu

Complex tubular structures are essential in medical imaging and computer-assisted diagnosis, where their integrity enhances anatomical visualization and lesion detection. However, existing segmentation algorithms struggle with structural…

计算机视觉与模式识别 · 计算机科学 2025-08-27 Yaolei Qi , Yikai Yang , Wenbo Peng , Shumei Miao , Yutao Hu , Guanyu Yang

Self-supervised representation learning (SSRL) has gained increasing attention in point cloud understanding, in addressing the challenges posed by 3D data scarcity and high annotation costs. This paper presents PCExpert, a novel SSRL…

计算机视觉与模式识别 · 计算机科学 2024-04-24 Jiachen Kang , Wenjing Jia , Xiangjian He , Kin Man Lam

Self-supervised learning has not been fully explored for point cloud analysis. Current frameworks are mainly based on point cloud reconstruction. Given only 3D coordinates, such approaches tend to learn local geometric structures and…

计算机视觉与模式识别 · 计算机科学 2022-03-29 Mingye Xu , Yali Wang , Zhipeng Zhou , Hongbin Xu , Yu Qiao

Raw point clouds data inevitably contains outliers or noise through acquisition from 3D sensors or reconstruction algorithms. In this paper, we present a novel end-to-end network for robust point clouds processing, named PointASNL, which…

计算机视觉与模式识别 · 计算机科学 2020-05-06 Xu Yan , Chaoda Zheng , Zhen Li , Sheng Wang , Shuguang Cui

In this paper, we propose PointRCNN for 3D object detection from raw point cloud. The whole framework is composed of two stages: stage-1 for the bottom-up 3D proposal generation and stage-2 for refining proposals in the canonical…

计算机视觉与模式识别 · 计算机科学 2019-05-17 Shaoshuai Shi , Xiaogang Wang , Hongsheng Li

Semantic analyses of object point clouds are largely driven by releasing of benchmarking datasets, including synthetic ones whose instances are sampled from object CAD models. However, learning from synthetic data may not generalize to…

计算机视觉与模式识别 · 计算机科学 2022-07-20 Yongwei Chen , Zihao Wang , Longkun Zou , Ke Chen , Kui Jia

In this paper, we propose PCPNet, a deep-learning based approach for estimating local 3D shape properties in point clouds. In contrast to the majority of prior techniques that concentrate on global or mid-level attributes, e.g., for shape…

计算几何 · 计算机科学 2018-06-20 Paul Guerrero , Yanir Kleiman , Maks Ovsjanikov , Niloy J. Mitra

Recent supervised point cloud upsampling methods are restricted by the size of training data and are limited in terms of covering all object shapes. Besides the challenges faced due to data acquisition, the networks also struggle to…

计算机视觉与模式识别 · 计算机科学 2022-04-19 Kaiyue Zhou , Ming Dong , Suzan Arslanturk

Deep learning-based quality metrics have recently given significant improvement in Image Quality Assessment (IQA). In the field of stereoscopic vision, information is evenly distributed with slight disparity to the left and right eyes.…

图像与视频处理 · 电气工程与系统科学 2022-11-04 Oussama Messai , Aladine Chetouani

The retinal fundus images are utilized extensively in the diagnosis, and their quality can directly affect the diagnosis results. However, due to the insufficient dataset and algorithm application, current fundus image quality assessment…

图像与视频处理 · 电气工程与系统科学 2024-11-20 Zheng Gong , Zhuo Deng , Run Gan , Zhiyuan Niu , Lu Chen , Canfeng Huang , Jia Liang , Weihao Gao , Fang Li , Shaochong Zhang , Lan Ma

We present a simple and general framework for feature learning from point clouds. The key to the success of CNNs is the convolution operator that is capable of leveraging spatially-local correlation in data represented densely in grids…

计算机视觉与模式识别 · 计算机科学 2018-11-06 Yangyan Li , Rui Bu , Mingchao Sun , Wei Wu , Xinhan Di , Baoquan Chen

Recent advancements in the field of No-Reference Image Quality Assessment (NR-IQA) using deep learning techniques demonstrate high performance across multiple open-source datasets. However, such models are typically very large and complex…

计算机视觉与模式识别 · 计算机科学 2024-09-09 Nasim Jamshidi Avanaki , Abhijay Ghildyal , Nabajeet Barman , Saman Zadtootaghaj

The perceptual task of speech quality assessment (SQA) is a challenging task for machines to do. Objective SQA methods that rely on the availability of the corresponding clean reference have been the primary go-to approaches for SQA.…

音频与语音处理 · 电气工程与系统科学 2021-10-19 Pranay Manocha , Buye Xu , Anurag Kumar

Shape completion, the problem of estimating the complete geometry of objects from partial observations, lies at the core of many vision and robotics applications. In this work, we propose Point Completion Network (PCN), a novel…

计算机视觉与模式识别 · 计算机科学 2019-09-30 Wentao Yuan , Tejas Khot , David Held , Christoph Mertz , Martial Hebert

No-Reference Image Quality Assessment (NR-IQA) remains a challenging task due to the diversity of distortions and the lack of large annotated datasets. Many studies have attempted to tackle these challenges by developing more accurate…

计算机视觉与模式识别 · 计算机科学 2024-09-09 Nasim Jamshidi Avanaki , Abhijay Ghildyal , Nabajeet Barman , Saman Zadtootaghaj

Video quality assessment is a challenging problem having a critical significance in the context of medical imaging. For instance, in laparoscopic surgery, the acquired video data suffers from different kinds of distortion that not only…

图像与视频处理 · 电气工程与系统科学 2022-09-20 Zohaib Amjad Khan , Azeddine Beghdadi , Mounir Kaaniche , Faouzi Alaya Cheikh , Osama Gharbi

No-Reference Image Quality Assessment (NR-IQA) aims to predict image quality scores consistent with human perception without relying on pristine reference images, serving as a crucial component in various visual tasks. Ensuring the…

计算机视觉与模式识别 · 计算机科学 2024-04-29 Chenxi Yang , Yujia Liu , Dingquan Li , Tingting Jiang

Due to the scarcity of labeled samples in Image Quality Assessment (IQA) datasets, numerous recent studies have proposed multi-task based strategies, which explore feature information from other tasks or domains to boost the IQA task.…

计算机视觉与模式识别 · 计算机科学 2024-11-13 Li Yu