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Large-scale variations still pose a challenge in unconstrained face detection. To the best of our knowledge, no current face detection algorithm can detect a face as large as 800 x 800 pixels while simultaneously detecting another one as…

计算机视觉与模式识别 · 计算机科学 2017-03-28 Yuguang Liu , Martin D. Levine

Rendering high-fidelity images from sparse point clouds is still challenging. Existing learning-based approaches suffer from either hole artifacts, missing details, or expensive computations. In this paper, we propose a novel framework to…

计算机视觉与模式识别 · 计算机科学 2024-07-08 Jiaxu Wang , Ziyi Zhang , Junhao He , Renjing Xu

Leveraging multi-modal fusion, especially between camera and LiDAR, has become essential for building accurate and robust 3D object detection systems for autonomous vehicles. Until recently, point decorating approaches, in which point…

计算机视觉与模式识别 · 计算机科学 2023-04-28 Philip Jacobson , Yiyang Zhou , Wei Zhan , Masayoshi Tomizuka , Ming C. Wu

With the beginning of the noisy intermediate-scale quantum (NISQ) era, a quantum neural network (QNN) has recently emerged as a solution for several specific problems that classical neural networks cannot solve. Moreover, a quantum…

量子物理 · 物理学 2022-10-19 Hankyul Baek , Won Joon Yun , Joongheon Kim

Cloud-edge collaboration enhances machine perception by combining the strengths of edge and cloud computing. Edge devices capture raw data (e.g., 3D point clouds) and extract salient features, which are sent to the cloud for deeper analysis…

图像与视频处理 · 电气工程与系统科学 2026-03-05 Chongzhen Tian , Hui Yuan , Pan Zhao , Chang Sun , Raouf Hamzaoui , Sam Kwong

Point cloud based retrieval for place recognition is still a challenging problem due to drastic appearance and illumination changes of scenes in changing environments. Existing deep learning based global descriptors for the retrieval task…

计算机视觉与模式识别 · 计算机科学 2022-02-09 Le Hui , Mingmei Cheng , Jin Xie , Jian Yang

Recently, deep convolution neural networks (CNNs) steered face super-resolution methods have achieved great progress in restoring degraded facial details by jointly training with facial priors. However, these methods have some obvious…

计算机视觉与模式识别 · 计算机科学 2023-03-24 Guangwei Gao , Zixiang Xu , Juncheng Li , Jian Yang , Tieyong Zeng , Guo-Jun Qi

Cross-layer feature pyramid networks (CFPNs) have achieved notable progress in multi-scale feature fusion and boundary detail preservation for salient object detection. However, traditional CFPNs still suffer from two core limitations: (1)…

计算机视觉与模式识别 · 计算机科学 2025-04-03 Jin Lian , Zhongyu Wan , Ming Gao , JunFeng Chen

Classifying the sub-categories of an object from the same super-category (e.g. bird species, car and aircraft models) in fine-grained visual classification (FGVC) highly relies on discriminative feature representation and accurate region…

计算机视觉与模式识别 · 计算机科学 2021-02-24 Yifeng Ding , Shaoguo Wen , Jiyang Xie , Dongliang Chang , Zhanyu Ma , Zhongwei Si , Haibin Ling

In recent years, Convolutional Neural Networks (CNN) have proven to be efficient analysis tools for processing point clouds, e.g., for reconstruction, segmentation and classification. In this paper, we focus on the classification of edges…

Multi-scale features are of great importance in encoding objects with scale variance in object detection tasks. A common strategy for multi-scale feature extraction is adopting the classic top-down and bottom-up feature pyramid networks.…

计算机视觉与模式识别 · 计算机科学 2023-09-26 Guoyu Yang , Jie Lei , Zhikuan Zhu , Siyu Cheng , Zunlei Feng , Ronghua Liang

Deep neural networks (DNNs) have achieved great success in the area of computer vision. The disparity estimation problem tends to be addressed by DNNs which achieve much better prediction accuracy than traditional hand-crafted feature-based…

计算机视觉与模式识别 · 计算机科学 2021-10-07 Qiang Wang , Shaohuai Shi , Shizhen Zheng , Kaiyong Zhao , Xiaowen Chu

Neural network pruning has remarkable performance for reducing the complexity of deep network models. Recent network pruning methods usually focused on removing unimportant or redundant filters in the network. In this paper, by exploring…

机器学习 · 计算机科学 2021-12-14 Yuanzhi Duan , Xiaofang Hu , Yue Zhou , Qiang Liu , Shukai Duan

Learning and analyzing 3D point clouds with deep networks is challenging due to the sparseness and irregularity of the data. In this paper, we present a data-driven point cloud upsampling technique. The key idea is to learn multi-level…

计算机视觉与模式识别 · 计算机科学 2018-03-28 Lequan Yu , Xianzhi Li , Chi-Wing Fu , Daniel Cohen-Or , Pheng-Ann Heng

Convolutional Neural Network (CNN) is a very powerful approach to extract discriminative local descriptors for effective image search. Recent work adopts fine-tuned strategies to further improve the discriminative power of the descriptors.…

计算机视觉与模式识别 · 计算机科学 2017-11-28 Tuan Hoang , Thanh-Toan Do , Dang-Khoa Le Tan , Ngai-Man Cheung

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

Semantic segmentation by convolutional neural networks (CNN) has advanced the state of the art in pixel-level classification of remote sensing images. However, processing large images typically requires analyzing the image in small patches,…

计算机视觉与模式识别 · 计算机科学 2020-08-25 Markku Luotamo , Sari Metsämäki , Arto Klami

Current state-of-the-art convolutional architectures for object detection are manually designed. Here we aim to learn a better architecture of feature pyramid network for object detection. We adopt Neural Architecture Search and discover a…

计算机视觉与模式识别 · 计算机科学 2019-04-17 Golnaz Ghiasi , Tsung-Yi Lin , Ruoming Pang , Quoc V. Le

Feature pyramids have become ubiquitous in multi-scale computer vision tasks such as object detection. Given their importance, a computer vision network can be divided into three parts: a backbone (generating a feature pyramid), a neck…

计算机视觉与模式识别 · 计算机科学 2022-10-31 Cédric Picron , Tinne Tuytelaars

Processing large point clouds is a challenging task. Therefore, the data is often downsampled to a smaller size such that it can be stored, transmitted and processed more efficiently without incurring significant performance degradation.…

计算机视觉与模式识别 · 计算机科学 2022-10-12 Yang Ye , Xiulong Yang , Shihao Ji