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Creating photorealistic, animatable, and relightable 3D head avatars traditionally requires expensive Lightstage with multiple calibrated cameras, making it inaccessible for widespread adoption. To bridge this gap, we present a novel,…

计算机视觉与模式识别 · 计算机科学 2025-04-15 Pranav Manu , Astitva Srivastava , Amit Raj , Varun Jampani , Avinash Sharma , P. J. Narayanan

We propose DiffuStereo, a novel system using only sparse cameras (8 in this work) for high-quality 3D human reconstruction. At its core is a novel diffusion-based stereo module, which introduces diffusion models, a type of powerful…

计算机视觉与模式识别 · 计算机科学 2022-07-21 Ruizhi Shao , Zerong Zheng , Hongwen Zhang , Jingxiang Sun , Yebin Liu

We present a novel framework to learn to convert the perpixel photometric information at each view into spatially distinctive and view-invariant low-level features, which can be plugged into existing multi-view stereo pipeline for enhanced…

计算机视觉与模式识别 · 计算机科学 2021-03-30 Kaizhang Kang , Cihui Xie , Ruisheng Zhu , Xiaohe Ma , Ping Tan , Hongzhi Wu , Kun Zhou

This paper proposes a process that uses two cameras to obtain three-dimensional (3D) information of a target object for human tracking. Results of human detection and tracking from two cameras are integrated to obtain the 3D information.…

计算机视觉与模式识别 · 计算机科学 2020-07-06 Shinya Matsubara , Akihiko Honda , Yonghoon Ji , Kazunori Umeda

Mutual calibration between color and depth cameras is a challenging topic in multi-modal data registration. In this paper, we are confronted with a "Bimodal Stereo" problem, which aims to solve camera pose from a pair of an uncalibrated…

计算机视觉与模式识别 · 计算机科学 2019-05-17 Chi Zhang , Yuehu Liu , Ying Wu , Qilin Zhang , Le Wang

We present a new color photometric stereo (CPS) method that recovers high quality, detailed 3D face geometry in a single shot. Our system uses three uncalibrated near point lights of different colors and a single camera. For robust…

计算机视觉与模式识别 · 计算机科学 2019-12-24 Zhang Chen , Yu Ji , Mingyuan Zhou , Sing Bing Kang , Jingyi Yu

This paper develops a simple and fast method to reconstruct reality from stereoscopic images. We bring together ideas from robust optical flow techniques, morphing deformations and lightfield 3D rendering in order to create unsupervised…

图像与视频处理 · 电气工程与系统科学 2020-01-03 Enrique Canessa , Livio Tenze

We propose a novel 3D human pose detector using two panoramic cameras. We show that transforming fisheye perspectives to rectilinear views allows a direct application of two-dimensional deep-learning pose estimation methods, without the…

计算机视觉与模式识别 · 计算机科学 2019-07-02 Christoph Heindl , Thomas Pönitz , Andreas Pichler , Josef Scharinger

Existing methods for 3D face reconstruction from a few casually captured images employ deep learning based models along with a 3D Morphable Model(3DMM) as face geometry prior. Structure From Motion(SFM), followed by Multi-View Stereo (MVS),…

计算机视觉与模式识别 · 计算机科学 2023-08-29 Raja Kumar , Jiahao Luo , Alex Pang , James Davis

Color photometric stereo enables single-shot surface reconstruction, extending conventional photometric stereo that requires multiple images of a static scene under varying illumination to dynamic scenarios. However, most existing…

计算机视觉与模式识别 · 计算机科学 2026-02-06 Zonglin Li , Jieji Ren , Shuangfan Zhou , Heng Guo , Jinnuo Zhang , Jiang Zhou , Boxin Shi , Zhanyu Ma , Guoying Gu

Expensive scientific camera hardware is amongst the main cost factors in modern, high-performance microscopes. Recent technological advantages have, however, yielded consumer-grade camera devices that can provide surprisingly good…

图像与视频处理 · 电气工程与系统科学 2019-03-06 Benedict Diederich , Patrick Then , Alexander Jügler , Ronny Förster , Rainer Heintzmann

This paper tackles the task of uncalibrated photometric stereo for 3D object reconstruction, where both the object shape, object reflectance, and lighting directions are unknown. This is an extremely difficult task, and the challenge is…

计算机视觉与模式识别 · 计算机科学 2022-07-19 Junxuan Li , Hongdong Li

Achieving robust stereo 3D imaging under diverse illumination conditions is an important however challenging task, due to the limited dynamic ranges (DRs) of cameras, which are significantly smaller than real world DR. As a result, the…

计算机视觉与模式识别 · 计算机科学 2024-12-04 Juhyung Choi , Jinnyeong Kim , Seokjun Choi , Jinwoo Lee , Samuel Brucker , Mario Bijelic , Felix Heide , Seung-Hwan Baek

Multi-view image acquisition systems with two or more cameras can be rather costly due to the number of high resolution image sensors that are required. Recently, it has been shown that by covering a low resolution sensor with a non-regular…

图像与视频处理 · 电气工程与系统科学 2022-04-11 Markus Jonscher , Jürgen Seiler , Thomas Richter , Michel Bätz , André Kaup

This paper proposes a new extrinsic calibration of kaleidoscopic imaging system by estimating normals and distances of the mirrors. The problem to be solved in this paper is a simultaneous estimation of all mirror parameters consistent…

计算机视觉与模式识别 · 计算机科学 2017-05-30 Kosuke Takahashi , Akihiro Miyata , Shohei Nobuhara , Takashi Matsuyama

Real-time Stereo Matching is a cornerstone algorithm for many Extended Reality (XR) applications, such as indoor 3D understanding, video pass-through, and mixed-reality games. Despite significant advancements in deep stereo methods,…

计算机视觉与模式识别 · 计算机科学 2023-09-11 Ziang Cheng , Jiayu Yang , Hongdong Li

3D photography is a new medium that allows viewers to more fully experience a captured moment. In this work, we refer to a 3D photo as one that displays parallax induced by moving the viewpoint (as opposed to a stereo pair with a fixed…

Methods for 3D reconstruction such as Photometric stereo recover the shape and reflectance properties using multiple images of an object taken with variable lighting conditions from a fixed viewpoint. Photometric stereo assumes that a scene…

计算机视觉与模式识别 · 计算机科学 2018-11-07 Anish R. Khadka , Paolo Remagnino , Vasileios Argyriou

We present a dataset of 1000 video sequences of human portraits recorded in real and uncontrolled conditions by using a handheld smartphone accompanied by an external high-quality depth camera. The collected dataset contains 200 people…

In this paper, we propose StereoPIFu, which integrates the geometric constraints of stereo vision with implicit function representation of PIFu, to recover the 3D shape of the clothed human from a pair of low-cost rectified images. First,…

计算机视觉与模式识别 · 计算机科学 2021-04-14 Yang Hong , Juyong Zhang , Boyi Jiang , Yudong Guo , Ligang Liu , Hujun Bao