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We present a solution for the goal of extracting a video from a single motion blurred image to sequentially reconstruct the clear views of a scene as beheld by the camera during the time of exposure. We first learn motion representation…

计算机视觉与模式识别 · 计算机科学 2019-03-12 Kuldeep Purohit , Anshul Shah , A. N. Rajagopalan

We consider the problem of providing dense segmentation masks for object discovery in videos. We formulate the object discovery problem as foreground motion clustering, where the goal is to cluster foreground pixels in videos into different…

计算机视觉与模式识别 · 计算机科学 2019-04-08 Christopher Xie , Yu Xiang , Zaid Harchaoui , Dieter Fox

The ability to record high-fidelity videos at high acquisition rates is central to the study of fast moving phenomena. The difficulty of imaging fast moving scenes lies in a trade-off between motion blur and underexposure noise: On the one…

计算机视觉与模式识别 · 计算机科学 2022-11-30 Weihao Zhuang , Tristan Hascoet , Ryoichi Takashima , Tetsuya Takiguchi

By analyzing the motion of people and other objects in a scene, we demonstrate how to infer depth, occlusion, lighting, and shadow information from video taken from a single camera viewpoint. This information is then used to composite new…

计算机视觉与模式识别 · 计算机科学 2020-07-21 Yifan Wang , Brian Curless , Steve Seitz

Many application domains, spanning from computational photography to medical imaging, require recovery of high-fidelity images from noisy, incomplete or partial/compressed measurements. State of the art methods for solving these inverse…

图像与视频处理 · 电气工程与系统科学 2022-07-13 Xinyi Wei , Hans van Gorp , Lizeth Gonzalez Carabarin , Daniel Freedman , Yonina C. Eldar , Ruud J. G. van Sloun

Reconstructing an object's geometry and appearance from multiple images, also known as inverse rendering, is a fundamental problem in computer graphics and vision. Inverse rendering is inherently ill-posed because the captured image is an…

计算机视觉与模式识别 · 计算机科学 2022-03-28 Akshat Dave , Yongyi Zhao , Ashok Veeraraghavan

We show how shadows can be efficiently generated in differentiable rendering of triangle meshes. Our central observation is that pre-filtered shadow mapping, a technique for approximating shadows based on rendering from the perspective of a…

图形学 · 计算机科学 2023-08-22 Markus Worchel , Marc Alexa

Blind video decaptioning is a problem of automatically removing text overlays and inpainting the occluded parts in videos without any input masks. While recent deep learning based inpainting methods deal with a single image and mostly…

计算机视觉与模式识别 · 计算机科学 2019-05-09 Dahun Kim , Sanghyun Woo , Joon-Young Lee , In So Kweon

Object detection in road scenes is necessary to develop both autonomous vehicles and driving assistance systems. Even if deep neural networks for recognition task have shown great performances using conventional images, they fail to detect…

计算机视觉与模式识别 · 计算机科学 2019-10-14 Rachel Blin , Samia Ainouz , Stéphane Canu , Fabrice Meriaudeau

Polarization is well known for its ability to decompose diffuse and specular reflections. However, the existing decomposition methods only focus on direct reflection and overlook multiple reflections, especially specular inter-reflection.…

计算机视觉与模式识别 · 计算机科学 2026-03-24 Ryota Maeda , Shinsaku Hiura

Many problems in Computer Vision can be reduced to either working around a known transform, or given a model for the transform computing the inverse problem of the transform itself. We will look at two ways of working with the matrix $A$…

计算机视觉与模式识别 · 计算机科学 2022-12-06 Burak Bayramli

Image inpainting is a challenging problem as it needs to fill the information of the corrupted regions. Most of the existing inpainting algorithms assume that the positions of the corrupted regions are known. Different from the existing…

计算机视觉与模式识别 · 计算机科学 2017-12-27 Yang Liu , Jinshan Pan , Zhixun Su

Image matting is a fundamental computer vision problem and has many applications. Previous algorithms have poor performance when an image has similar foreground and background colors or complicated textures. The main reasons are prior…

计算机视觉与模式识别 · 计算机科学 2017-04-12 Ning Xu , Brian Price , Scott Cohen , Thomas Huang

As handheld video cameras are now commonplace and available in every smartphone, images and videos can be recorded almost everywhere at anytime. However, taking a quick shot frequently yields a blurry result due to unwanted camera shake…

计算机视觉与模式识别 · 计算机科学 2017-08-15 Patrick Wieschollek , Michael Hirsch , Bernhard Schölkopf , Hendrik P. A. Lensch

This review article surveys the current progresses made toward video-based anomaly detection. We address the most fundamental aspect for video anomaly detection, that is, video feature representation. Much research works have been done in…

计算机视觉与模式识别 · 计算机科学 2015-05-05 Yong Shean Chong , Yong Haur Tay

We introduce visual deprojection: the task of recovering an image or video that has been collapsed along a dimension. Projections arise in various contexts, such as long-exposure photography, where a dynamic scene is collapsed in time to…

计算机视觉与模式识别 · 计算机科学 2019-09-04 Guha Balakrishnan , Adrian V. Dalca , Amy Zhao , John V. Guttag , Fredo Durand , William T. Freeman

In natural image matting, the goal is to estimate the opacity of the foreground object in the image. This opacity controls the way the foreground and background is blended in transparent regions. In recent years, advances in deep learning…

计算机视觉与模式识别 · 计算机科学 2021-03-26 Sebastian Lutz , Aljosa Smolic

We present a physics-based inverse rendering method that learns the illumination, geometry, and materials of a scene from posed multi-view RGB images. To model the illumination of a scene, existing inverse rendering works either completely…

计算机视觉与模式识别 · 计算机科学 2023-12-04 Youming Deng , Xueting Li , Sifei Liu , Ming-Hsuan Yang

One significant factor we expect the video representation learning to capture, especially in contrast with the image representation learning, is the object motion. However, we found that in the current mainstream video datasets, some action…

计算机视觉与模式识别 · 计算机科学 2020-12-17 Jinpeng Wang , Yuting Gao , Ke Li , Jianguo Hu , Xinyang Jiang , Xiaowei Guo , Rongrong Ji , Xing Sun

It has been an important approach of using matrix completion to perform image restoration. Most previous works on matrix completion focus on the low-rank property by imposing explicit constraints on the recovered matrix, such as the…

机器学习 · 计算机科学 2022-06-28 Zhemin Li , Zhi-Qin John Xu , Tao Luo , Hongxia Wang