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This paper introduces FlowMap, an end-to-end differentiable method that solves for precise camera poses, camera intrinsics, and per-frame dense depth of a video sequence. Our method performs per-video gradient-descent minimization of a…

计算机视觉与模式识别 · 计算机科学 2024-07-24 Cameron Smith , David Charatan , Ayush Tewari , Vincent Sitzmann

Precise boundary annotations of image regions can be crucial for downstream applications which rely on region-class semantics. Some document collections contain densely laid out, highly irregular and overlapping multi-class region instances…

计算机视觉与模式识别 · 计算机科学 2021-08-24 Abhishek Trivedi , Ravi Kiran Sarvadevabhatla

Existing portrait matting methods either require auxiliary inputs that are costly to obtain or involve multiple stages that are computationally expensive, making them less suitable for real-time applications. In this work, we present a…

计算机视觉与模式识别 · 计算机科学 2022-03-21 Zhanghan Ke , Jiayu Sun , Kaican Li , Qiong Yan , Rynson W. H. Lau

Face recognition in complex scenes suffers severe challenges coming from perturbations such as pose deformation, ill illumination, partial occlusion. Some methods utilize depth estimation to obtain depth corresponding to RGB to improve the…

计算机视觉与模式识别 · 计算机科学 2023-05-09 Wenhao Hu

We introduce a real-time, high-resolution background replacement technique which operates at 30fps in 4K resolution, and 60fps for HD on a modern GPU. Our technique is based on background matting, where an additional frame of the background…

计算机视觉与模式识别 · 计算机科学 2020-12-15 Shanchuan Lin , Andrey Ryabtsev , Soumyadip Sengupta , Brian Curless , Steve Seitz , Ira Kemelmacher-Shlizerman

We introduce SceneNet RGB-D, expanding the previous work of SceneNet to enable large scale photorealistic rendering of indoor scene trajectories. It provides pixel-perfect ground truth for scene understanding problems such as semantic…

计算机视觉与模式识别 · 计算机科学 2017-01-31 John McCormac , Ankur Handa , Stefan Leutenegger , Andrew J. Davison

In this work we present a deep learning framework for video compressive sensing. The proposed formulation enables recovery of video frames in a few seconds at significantly improved reconstruction quality compared to previous approaches.…

计算机视觉与模式识别 · 计算机科学 2017-12-19 Michael Iliadis , Leonidas Spinoulas , Aggelos K. Katsaggelos

With the popularization of high-end mobile devices, Ultra-high-definition (UHD) images have become ubiquitous in our lives. The restoration of UHD images is a highly challenging problem due to the exaggerated pixel count, which often leads…

计算机视觉与模式识别 · 计算机科学 2024-11-12 Chen Wu , Ling Wang , Long Peng , Dianjie Lu , Zhuoran Zheng

Accurate monocular depth estimation is a fundamental component of vision-based perception systems in intelligent transportation applications. Despite recent progress, unsupervised monocular approaches still suffer from significant…

计算机视觉与模式识别 · 计算机科学 2026-01-21 Yufan Zhu , Chongzhi Ran , Mingtao Feng , Le Dong , Weisheng Dong , Antonio M. López

Prevailing video frame interpolation algorithms, that generate the intermediate frames from consecutive inputs, typically rely on complex model architectures with heavy parameters or large delay, hindering them from diverse real-time…

计算机视觉与模式识别 · 计算机科学 2022-05-31 Lingtong Kong , Boyuan Jiang , Donghao Luo , Wenqing Chu , Xiaoming Huang , Ying Tai , Chengjie Wang , Jie Yang

While the keypoint-based maps created by sparse monocular simultaneous localisation and mapping (SLAM) systems are useful for camera tracking, dense 3D reconstructions may be desired for many robotic tasks. Solutions involving depth cameras…

计算机视觉与模式识别 · 计算机科学 2022-07-26 Tristan Laidlow , Jan Czarnowski , Stefan Leutenegger

An event camera detects per-pixel intensity difference and produces asynchronous event stream with low latency, high dynamic range, and low power consumption. As a trade-off, the event camera has low spatial resolution. We propose an…

计算机视觉与模式识别 · 计算机科学 2020-04-13 S. Mohammad Mostafavi I. , Jonghyun Choi , Kuk-Jin Yoon

We present a real-time dense geometric mapping algorithm for large-scale environments. Unlike existing methods which use pinhole cameras, our implementation is based on fisheye cameras which have larger field of view and benefit some other…

机器人学 · 计算机科学 2019-04-19 Zhaopeng Cui , Lionel Heng , Ye Chuan Yeo , Andreas Geiger , Marc Pollefeys , Torsten Sattler

The low-quality structure in raw depth maps is prevalent in real-world RGB-D datasets, which makes real-world depth recovery a critical task in recent years. However, the lack of paired raw-ground truth (raw-GT) data in the real world poses…

计算机视觉与模式识别 · 计算机科学 2025-04-17 Delong Suzhang , Meng Yang

Using the raw data from consumer-level RGB-D cameras as input, we propose a deep-learning based approach to efficiently generate RGB-D images with completed information in high resolution. To process the input images in low resolution with…

计算机视觉与模式识别 · 计算机科学 2020-06-15 Chuhua Xian , Dongjiu Zhang , Chengkai Dai , Charlie C. L. Wang

High-definition (HD) semantic map generation of the environment is an essential component of autonomous driving. Existing methods have achieved good performance in this task by fusing different sensor modalities, such as LiDAR and camera.…

计算机视觉与模式识别 · 计算机科学 2024-11-28 Hao Dong , Weihao Gu , Xianjing Zhang , Jintao Xu , Rui Ai , Huimin Lu , Juho Kannala , Xieyuanli Chen

We present a fast and accurate visual tracking algorithm based on the multi-domain convolutional neural network (MDNet). The proposed approach accelerates feature extraction procedure and learns more discriminative models for instance…

计算机视觉与模式识别 · 计算机科学 2018-08-28 Ilchae Jung , Jeany Son , Mooyeol Baek , Bohyung Han

Transparent objects are common in our daily life and frequently handled in the automated production line. Robust vision-based robotic grasping and manipulation for these objects would be beneficial for automation. However, the majority of…

机器人学 · 计算机科学 2022-08-30 Hongjie Fang , Hao-Shu Fang , Sheng Xu , Cewu Lu

We propose a novel multi-stage depth super-resolution network, which progressively reconstructs high-resolution depth maps from explicit and implicit high-frequency features. The former are extracted by an efficient transformer processing…

计算机视觉与模式识别 · 计算机科学 2023-05-31 Xin Qiao , Chenyang Ge , Youmin Zhang , Yanhui Zhou , Fabio Tosi , Matteo Poggi , Stefano Mattoccia

An accurate depth map of the environment is critical to the safe operation of autonomous robots and vehicles. Currently, either light detection and ranging (LIDAR) or stereo matching algorithms are used to acquire such depth information.…

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