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Hand-object interaction understanding and the barely addressed novel view synthesis are highly desired in the immersive communication, whereas it is challenging due to the high deformation of hand and heavy occlusions between hand and…

Computer Vision and Pattern Recognition · Computer Science 2023-08-23 Wentian Qu , Zhaopeng Cui , Yinda Zhang , Chenyu Meng , Cuixia Ma , Xiaoming Deng , Hongan Wang

We introduce Neural Point Light Fields that represent scenes implicitly with a light field living on a sparse point cloud. Combining differentiable volume rendering with learned implicit density representations has made it possible to…

Computer Vision and Pattern Recognition · Computer Science 2022-06-08 Julian Ost , Issam Laradji , Alejandro Newell , Yuval Bahat , Felix Heide

Synthesizing realistic videos of humans using neural networks has been a popular alternative to the conventional graphics-based rendering pipeline due to its high efficiency. Existing works typically formulate this as an image-to-image…

To generalize to novel visual scenes with new viewpoints and new object poses, a visual system needs representations of the shapes of the parts of an object that are invariant to changes in viewpoint or pose. 3D graphics representations…

Computer Vision and Pattern Recognition · Computer Science 2019-05-29 Boyang Deng , Simon Kornblith , Geoffrey Hinton

Camera captured human pose is an outcome of several sources of variation. Performance of supervised 3D pose estimation approaches comes at the cost of dispensing with variations, such as shape and appearance, that may be useful for solving…

Computer Vision and Pattern Recognition · Computer Science 2020-04-10 Jogendra Nath Kundu , Siddharth Seth , Varun Jampani , Mugalodi Rakesh , R. Venkatesh Babu , Anirban Chakraborty

Learning with neural networks from a continuous stream of visual information presents several challenges due to the non-i.i.d. nature of the data. However, it also offers novel opportunities to develop representations that are consistent…

Computer Vision and Pattern Recognition · Computer Science 2024-09-19 Simone Marullo , Matteo Tiezzi , Marco Gori , Stefano Melacci

Implicit neural representation is a recent approach to learn shape collections as zero level-sets of neural networks, where each shape is represented by a latent code. So far, the focus has been shape reconstruction, while shape…

Computer Vision and Pattern Recognition · Computer Science 2021-08-23 Matan Atzmon , David Novotny , Andrea Vedaldi , Yaron Lipman

Reconstructing high-quality 3D objects from sparse, partial observations from a single view is of crucial importance for various applications in computer vision, robotics, and graphics. While recent neural implicit modeling methods show…

Computer Vision and Pattern Recognition · Computer Science 2021-11-29 Shivam Duggal , Zihao Wang , Wei-Chiu Ma , Sivabalan Manivasagam , Justin Liang , Shenlong Wang , Raquel Urtasun

We propose the Encoder-Recurrent-Decoder (ERD) model for recognition and prediction of human body pose in videos and motion capture. The ERD model is a recurrent neural network that incorporates nonlinear encoder and decoder networks before…

Computer Vision and Pattern Recognition · Computer Science 2015-09-30 Katerina Fragkiadaki , Sergey Levine , Panna Felsen , Jitendra Malik

Recently neural scene representations have provided very impressive results for representing 3D scenes visually, however, their study and progress have mainly been limited to visualization of virtual models in computer graphics or scene…

Computer Vision and Pattern Recognition · Computer Science 2022-09-26 Yassine Ahmine , Arnab Dey , Andrew I. Comport

How to effectively represent camera pose is an essential problem in 3D computer vision, especially in tasks such as camera pose regression and novel view synthesis. Traditionally, 3D position of the camera is represented by Cartesian…

Computer Vision and Pattern Recognition · Computer Science 2021-05-11 Yaxuan Zhu , Ruiqi Gao , Siyuan Huang , Song-Chun Zhu , Ying Nian Wu

Reconstructing photo-realistic drivable human avatars from multi-view image sequences has been a popular and challenging topic in the field of computer vision and graphics. While existing NeRF-based methods can achieve high-quality novel…

Computer Vision and Pattern Recognition · Computer Science 2024-03-19 Yujiao Jiang , Qingmin Liao , Xiaoyu Li , Li Ma , Qi Zhang , Chaopeng Zhang , Zongqing Lu , Ying Shan

An important problem for both graphics and vision is to synthesize novel views of a 3D object from a single image. This is particularly challenging due to the partial observability inherent in projecting a 3D object onto the image space,…

Machine Learning · Computer Science 2016-01-06 Jimei Yang , Scott Reed , Ming-Hsuan Yang , Honglak Lee

Implicit neural representations are a promising new avenue of representing general signals by learning a continuous function that, parameterized as a neural network, maps the domain of a signal to its codomain; the mapping from spatial…

Machine Learning · Computer Science 2021-11-09 Jaeho Lee , Jihoon Tack , Namhoon Lee , Jinwoo Shin

To date, little attention has been given to multi-view 3D human mesh estimation, despite real-life applicability (e.g., motion capture, sport analysis) and robustness to single-view ambiguities. Existing solutions typically suffer from poor…

Computer Vision and Pattern Recognition · Computer Science 2022-12-13 Xuan Gong , Liangchen Song , Meng Zheng , Benjamin Planche , Terrence Chen , Junsong Yuan , David Doermann , Ziyan Wu

Implicit neural representations with multi-layer perceptrons (MLPs) have recently gained prominence for a wide variety of tasks such as novel view synthesis and 3D object representation and rendering. However, a significant challenge with…

Computer Vision and Pattern Recognition · Computer Science 2022-02-01 Ruofan Liang , Hongyi Sun , Nandita Vijaykumar

Human bodies exhibit various shapes for different identities or poses, but the body shape has certain similarities in structure and thus can be embedded in a low-dimensional space. This paper presents an autoencoder-like network…

Computer Vision and Pattern Recognition · Computer Science 2020-04-20 Boyi Jiang , Juyong Zhang , Jianfei Cai , Jianmin Zheng

We present Neural Generalized Implicit Functions(Neural-GIF), to animate people in clothing as a function of the body pose. Given a sequence of scans of a subject in various poses, we learn to animate the character for new poses. Existing…

Computer Vision and Pattern Recognition · Computer Science 2021-08-23 Garvita Tiwari , Nikolaos Sarafianos , Tony Tung , Gerard Pons-Moll

Neural Representations for Videos (NeRV) has emerged as a promising implicit neural representation (INR) approach for video analysis, which represents videos as neural networks with frame indexes as inputs. However, NeRV-based methods are…

Computer Vision and Pattern Recognition · Computer Science 2025-01-20 Jialong Guo , Ke liu , Jiangchao Yao , Zhihua Wang , Jiajun Bu , Haishuai Wang

Interpreting human neural signals to decode static speech intentions such as text or images and dynamic speech intentions such as audio or video is showing great potential as an innovative communication tool. Human communication accompanies…

Artificial Intelligence · Computer Science 2025-01-22 Ji-Ha Park , Seo-Hyun Lee , Soowon Kim , Seong-Whan Lee