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Depth images and thermal images contain the spatial geometry information and surface temperature information, which can act as complementary information for the RGB modality. However, the quality of the depth and thermal images is often…

Computer Vision and Pattern Recognition · Computer Science 2024-05-14 Liuxin Bao , Xiaofei Zhou , Xiankai Lu , Yaoqi Sun , Haibing Yin , Zhenghui Hu , Jiyong Zhang , Chenggang Yan

We present a novel method for efficiently producing semi-dense matches across images. Previous detector-free matcher LoFTR has shown remarkable matching capability in handling large-viewpoint change and texture-poor scenarios but suffers…

Computer Vision and Pattern Recognition · Computer Science 2024-03-13 Yifan Wang , Xingyi He , Sida Peng , Dongli Tan , Xiaowei Zhou

Small objects detection is a challenging task in computer vision due to its limited resolution and information. In order to solve this problem, the majority of existing methods sacrifice speed for improvement in accuracy. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2018-11-28 Guimei Cao , Xuemei Xie , Wenzhe Yang , Quan Liao , Guangming Shi , Jinjian Wu

In this work, we present DCC(Deeper-yet-Compatible Compression), one enabling technique for real-time drone-sourced edge-assisted video analytics built on top of the existing codec. DCC tackles an important technical problem to compress…

Networking and Internet Architecture · Computer Science 2021-11-12 Junpeng Guo , Chunyi Peng

We propose a late-to-early recurrent feature fusion scheme for 3D object detection using temporal LiDAR point clouds. Our main motivation is fusing object-aware latent embeddings into the early stages of a 3D object detector. This feature…

Computer Vision and Pattern Recognition · Computer Science 2023-10-02 Tong He , Pei Sun , Zhaoqi Leng , Chenxi Liu , Dragomir Anguelov , Mingxing Tan

Dense image prediction tasks demand features with strong category information and precise spatial boundary details at high resolution. To achieve this, modern hierarchical models often utilize feature fusion, directly adding upsampled…

Computer Vision and Pattern Recognition · Computer Science 2024-08-26 Linwei Chen , Ying Fu , Lin Gu , Chenggang Yan , Tatsuya Harada , Gao Huang

Light scattering by tissue severely limits how deep beneath the surface one can image, and the spatial resolution one can obtain from these images. Diffuse optical tomography (DOT) is one of the most powerful techniques for imaging deep…

Image and Video Processing · Electrical Eng. & Systems 2021-05-31 Yongyi Zhao , Ankit Raghuram , Hyun K. Kim , Andreas H. Hielscher , Jacob T. Robinson , Ashok Veeraraghavan

Visual Deformation Measurement (VDM) aims to recover dense deformation fields by tracking surface motion from camera observations. Traditional image-based methods rely on minimal inter-frame motion to constrain the correspondence search…

Computer Vision and Pattern Recognition · Computer Science 2026-02-17 Yuliang Wu , Wei Zhai , Yuxin Cui , Tiesong Zhao , Yang Cao , Zheng-Jun Zha

Depth-from-focus (DFF) is a technique that infers depth using the focus change of a camera. In this work, we propose a convolutional neural network (CNN) to find the best-focused pixels in a focal stack and infer depth from the focus…

Computer Vision and Pattern Recognition · Computer Science 2022-03-21 Fengting Yang , Xiaolei Huang , Zihan Zhou

Depth enhancement, which converts raw dToF signals into dense depth maps using RGB guidance, is crucial for improving depth perception in high-precision tasks such as 3D reconstruction and SLAM. However, existing methods often assume ideal…

Computer Vision and Pattern Recognition · Computer Science 2025-10-01 Jijun Xiang , Longliang Liu , Xuan Zhu , Xianqi Wang , Min Lin , Xin Yang

We introduce Doppler time-of-flight (D-ToF) rendering, an extension of ToF rendering for dynamic scenes, with applications in simulating D-ToF cameras. D-ToF cameras use high-frequency modulation of illumination and exposure, and measure…

Graphics · Computer Science 2023-10-06 Juhyeon Kim , Wojciech Jarosz , Ioannis Gkioulekas , Adithya Pediredla

This paper proposes a novel spatiotemporal (ST) fusion framework for satellite images, named Robust Optimization-based Spatiotemporal Fusion (ROSTF). ST fusion is a promising approach to resolve a trade-off between the temporal and spatial…

Image and Video Processing · Electrical Eng. & Systems 2024-07-01 Ryosuke Isono , Kazuki Naganuma , Shunsuke Ono

Depth completion recovers a dense depth map from sensor measurements. Current methods are mostly tailored for very sparse depth measurements from LiDARs in outdoor settings, while for indoor scenes Time-of-Flight (ToF) or structured light…

Computer Vision and Pattern Recognition · Computer Science 2021-02-09 Dmitry Senushkin , Mikhail Romanov , Ilia Belikov , Anton Konushin , Nikolay Patakin

Effectively describing features for cross-modal remote sensing image matching remains a challenging task due to the significant geometric and radiometric differences between multimodal images. Existing methods primarily extract features at…

Computer Vision and Pattern Recognition · Computer Science 2025-10-03 Abu Sadat Mohammad Salehin Amit , Xiaoli Zhang , Md Masum Billa Shagar , Zhaojun Liu , Xiongfei Li , Fanlong Meng

Dense real-time tracking and mapping from RGB-D images is an important tool for many robotic applications, such as navigation and manipulation. The recently presented Directional Truncated Signed Distance Function (DTSDF) is an augmentation…

Computer Vision and Pattern Recognition · Computer Science 2023-01-31 Malte Splietker , Sven Behnke

Visible light communications (VLC) have recently attracted a growing interest and can be a potential solution to realize indoor wireless communication with high bandwidth capacity for RF-restricted environments such as airplanes and…

Information Theory · Computer Science 2016-11-18 Bilal A. Ranjha , Mohammadreza A. Kashani , Mohsen Kavehrad , Peng Deng

3D object detection is essential for autonomous driving. As an emerging sensor, 4D imaging radar offers advantages as low cost, long-range detection, and accurate velocity measurement, making it highly suitable for object detection.…

Computer Vision and Pattern Recognition · Computer Science 2025-10-23 Xiaozhi Li , Huijun Di , Jian Li , Feng Liu , Wei Liang

Current multispectral object detection methods often retain extraneous background or noise during feature fusion, limiting perceptual performance. To address this, we propose an innovative feature fusion framework based on cross-modal…

Computer Vision and Pattern Recognition · Computer Science 2025-09-16 Jifeng Shen , Haibo Zhan , Xin Zuo , Heng Fan , Xiaohui Yuan , Jun Li , Wankou Yang

Video deblurring is a challenging task due to the spatially variant blur caused by camera shake, object motions, and depth variations, etc. Existing methods usually estimate optical flow in the blurry video to align consecutive frames or…

Computer Vision and Pattern Recognition · Computer Science 2019-08-02 Shangchen Zhou , Jiawei Zhang , Jinshan Pan , Haozhe Xie , Wangmeng Zuo , Jimmy Ren

Compressed video super-resolution (VSR) aims to restore high-resolution frames from compressed low-resolution counterparts. Most recent VSR approaches often enhance an input frame by borrowing relevant textures from neighboring video…

Computer Vision and Pattern Recognition · Computer Science 2022-08-08 Zhongwei Qiu , Huan Yang , Jianlong Fu , Dongmei Fu