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Light-field microscopy (LFM) enables rapid volumetric imaging through single-frame acquisition and fast 3D reconstruction algorithms. The high speed and low phototoxicity of LFM make it highly suitable for real-time 3D fluorescence imaging,…

Optics · Physics 2025-02-24 Bohan Qu , Zhouyu Jin , You Zhou , Bo Xiong , Xun Cao

Object detection is one of the most active areas in computer vision, which has made significant improvement in recent years. Current state-of-the-art object detection methods mostly adhere to the framework of regions with convolutional…

Computer Vision and Pattern Recognition · Computer Science 2016-04-15 Wenqing Chu , Deng Cai

Multimodal Large Language Models (MLLMs) have demonstrated an excellent understanding of images and 3D data. However, both modalities have shortcomings in holistically capturing the appearance and geometry of objects. Meanwhile, Neural…

Computer Vision and Pattern Recognition · Computer Science 2024-11-25 Andrea Amaduzzi , Pierluigi Zama Ramirez , Giuseppe Lisanti , Samuele Salti , Luigi Di Stefano

We present Neural Reflectance Fields, a novel deep scene representation that encodes volume density, normal and reflectance properties at any 3D point in a scene using a fully-connected neural network. We combine this representation with a…

Computer Vision and Pattern Recognition · Computer Science 2020-08-18 Sai Bi , Zexiang Xu , Pratul Srinivasan , Ben Mildenhall , Kalyan Sunkavalli , Miloš Hašan , Yannick Hold-Geoffroy , David Kriegman , Ravi Ramamoorthi

Image warping aims to reshape images defined on rectangular grids into arbitrary shapes. Recently, implicit neural functions have shown remarkable performances in representing images in a continuous manner. However, a standalone multi-layer…

Computer Vision and Pattern Recognition · Computer Science 2022-07-06 Jaewon Lee , Kwang Pyo Choi , Kyong Hwan Jin

In this article, we tackle the problem of depth estimation from single monocular images. Compared with depth estimation using multiple images such as stereo depth perception, depth from monocular images is much more challenging. Prior work…

Computer Vision and Pattern Recognition · Computer Science 2016-11-17 Fayao Liu , Chunhua Shen , Guosheng Lin , Ian Reid

Despite recent advances in multi-scale deep representations, their limitations are attributed to expensive parameters and weak fusion modules. Hence, we propose an efficient approach to fuse multi-scale deep representations, called…

Computer Vision and Pattern Recognition · Computer Science 2016-11-18 Yu Liu , Yanming Guo , Michael S. Lew

Neural Radiance Fields (NeRF) use multi-view images for 3D scene representation, demonstrating remarkable performance. As one of the primary sources of multi-view images, multi-camera systems encounter challenges such as varying intrinsic…

Computer Vision and Pattern Recognition · Computer Science 2024-12-09 Yu Gao , Lutong Su , Hao Liang , Yufeng Yue , Yi Yang , Mengyin Fu

Neural Radiance Fields (NeRF) achieve impressive view synthesis results for a variety of capture settings, including 360 capture of bounded scenes and forward-facing capture of bounded and unbounded scenes. NeRF fits multi-layer perceptrons…

Computer Vision and Pattern Recognition · Computer Science 2020-10-23 Kai Zhang , Gernot Riegler , Noah Snavely , Vladlen Koltun

Recent years have witnessed the great advances of deep neural networks (DNNs) in light field (LF) image super-resolution (SR). However, existing DNN-based LF image SR methods are developed on a single fixed degradation (e.g., bicubic…

Computer Vision and Pattern Recognition · Computer Science 2023-12-01 Yingqian Wang , Zhengyu Liang , Longguang Wang , Jungang Yang , Wei An , Yulan Guo

Semantic segmentation is one of the key tasks in computer vision, which is to assign a category label to each pixel in an image. Despite significant progress achieved recently, most existing methods still suffer from two challenging issues:…

Computer Vision and Pattern Recognition · Computer Science 2022-09-08 Jianlong Yuan , Zelu Deng , Shu Wang , Zhenbo Luo

Purely MLP-based neural radiance fields (NeRF-based methods) often suffer from underfitting with blurred renderings on large-scale scenes due to limited model capacity. Recent approaches propose to geographically divide the scene and adopt…

Computer Vision and Pattern Recognition · Computer Science 2023-03-27 Linning Xu , Yuanbo Xiangli , Sida Peng , Xingang Pan , Nanxuan Zhao , Christian Theobalt , Bo Dai , Dahua Lin

Reconstructing large-scale 3D scenes is essential for autonomous vehicles, especially when partial sensor data is lost. Although the recently developed neural radiance fields (NeRF) have shown compelling results in implicit representations,…

Computer Vision and Pattern Recognition · Computer Science 2023-10-03 Xiuzhong Hu , Guangming Xiong , Zheng Zang , Peng Jia , Yuxuan Han , Junyi Ma

Deep learning (DL) has been applied extensively in many computational imaging problems, often leading to superior performance over traditional iterative approaches. However, two important questions remain largely unanswered: first, how well…

Image and Video Processing · Electrical Eng. & Systems 2020-08-26 Mo Deng , Shuai Li , Iksung Kang , Nicholas X. Fang , George Barbastathis

We present Panoptic Neural Fields (PNF), an object-aware neural scene representation that decomposes a scene into a set of objects (things) and background (stuff). Each object is represented by an oriented 3D bounding box and a multi-layer…

Computer Vision and Pattern Recognition · Computer Science 2022-05-10 Abhijit Kundu , Kyle Genova , Xiaoqi Yin , Alireza Fathi , Caroline Pantofaru , Leonidas Guibas , Andrea Tagliasacchi , Frank Dellaert , Thomas Funkhouser

We introduce ViewNeRF, a Neural Radiance Field-based viewpoint estimation method that learns to predict category-level viewpoints directly from images during training. While NeRF is usually trained with ground-truth camera poses, multiple…

Computer Vision and Pattern Recognition · Computer Science 2022-12-02 Octave Mariotti , Oisin Mac Aodha , Hakan Bilen

CNNs and computational models of biological vision share some fundamental principles, which opened new avenues of research. However, fruitful cross-field research is hampered by conventional CNN architectures being based on spatially and…

Computer Vision and Pattern Recognition · Computer Science 2024-02-05 Nergis Tomen , Silvia L. Pintea , Jan C. van Gemert

This paper explores the problem of reconstructing high-resolution light field (LF) images from hybrid lenses, including a high-resolution camera surrounded by multiple low-resolution cameras. The performance of existing methods is still…

Image and Video Processing · Electrical Eng. & Systems 2023-06-21 Jing Jin , Mantang Guo , Junhui Hou , Hui Liu , Hongkai Xiong

Underwater image enhancement is an important low-level computer vision task for autonomous underwater vehicles and remotely operated vehicles to explore and understand the underwater environments. Recently, deep convolutional neural…

Computer Vision and Pattern Recognition · Computer Science 2021-05-06 Hao-Hsiang Yang , Kuan-Chih Huang , Wei-Ting Chen

Deep implicit functions (DIFs), as a kind of 3D shape representation, are becoming more and more popular in the 3D vision community due to their compactness and strong representation power. However, unlike polygon mesh-based templates, it…

Computer Vision and Pattern Recognition · Computer Science 2021-05-14 Zerong Zheng , Tao Yu , Qionghai Dai , Yebin Liu