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We propose a novel method to reconstruct the 3D shapes of transparent objects using hand-held captured images under natural light conditions. It combines the advantage of explicit mesh and multi-layer perceptron (MLP) network, a hybrid…

Computer Vision and Pattern Recognition · Computer Science 2023-03-30 Jiamin Xu , Zihan Zhu , Hujun Bao , Weiwei Xu

Advancements in the generation quality of various Generative Models (GMs) has made it necessary to not only perform binary manipulation detection but also localize the modified pixels in an image. However, prior works termed as passive for…

Computer Vision and Pattern Recognition · Computer Science 2023-04-06 Vishal Asnani , Xi Yin , Tal Hassner , Xiaoming Liu

A distinctive representation of image patches in form of features is a key component of many computer vision and robotics tasks, such as image matching, image retrieval, and visual localization. State-of-the-art descriptors, from…

Computer Vision and Pattern Recognition · Computer Science 2022-09-28 Hao Dong , Xieyuanli Chen , Mihai Dusmanu , Viktor Larsson , Marc Pollefeys , Cyrill Stachniss

Implicit Neural Representations (INRs) employ neural networks to represent continuous functions by mapping coordinates to the corresponding values of the target function, with applications e.g., inverse graphics. However, INRs face a…

Computer Vision and Pattern Recognition · Computer Science 2025-02-11 Mingze Ma , Qingtian Zhu , Yifan Zhan , Zhengwei Yin , Hongjun Wang , Yinqiang Zheng

Multilayer perceptrons (MLPs) learn high frequencies slowly. Recent approaches encode features in spatial bins to improve speed of learning details, but at the cost of larger model size and loss of continuity. Instead, we propose to encode…

Computer Vision and Pattern Recognition · Computer Science 2022-12-05 Jae Yong Lee , Yuqun Wu , Chuhang Zou , Shenlong Wang , Derek Hoiem

While most images shared on the web and social media platforms are encoded in standard dynamic range (SDR), many displays now can accommodate high dynamic range (HDR) content. Additionally, modern cameras can capture images in an HDR format…

Image and Video Processing · Electrical Eng. & Systems 2025-03-18 Trevor D. Canham , SaiKiran Tedla , Michael J. Murdoch , Michael S. Brown

Implicit neural fields, typically encoded by a multilayer perceptron (MLP) that maps from coordinates (e.g., xyz) to signals (e.g., signed distances), have shown remarkable promise as a high-fidelity and compact representation. However, the…

Computer Vision and Pattern Recognition · Computer Science 2023-03-31 Ziya Erkoç , Fangchang Ma , Qi Shan , Matthias Nießner , Angela Dai

Despite recent advances in implicit neural representations (INRs), it remains challenging for a coordinate-based multi-layer perceptron (MLP) of INRs to learn a common representation across data instances and generalize it for unseen…

Computer Vision and Pattern Recognition · Computer Science 2023-04-18 Chiheon Kim , Doyup Lee , Saehoon Kim , Minsu Cho , Wook-Shin Han

Despite the success of deep learning in domains such as image, voice, and graphs, there has been little progress in deep representation learning for domains without a known structure between features. For instance, a tabular dataset of…

Machine Learning · Computer Science 2020-11-26 Mohammad Kachuee , Sajad Darabi , Shayan Fazeli , Majid Sarrafzadeh

With the rapid development of geometric deep learning techniques, many mesh-based convolutional operators have been proposed to bridge irregular mesh structures and popular backbone networks. In this paper, we show that while convolutions…

Computer Vision and Pattern Recognition · Computer Science 2023-12-29 Qiujie Dong , Xiaoran Gong , Rui Xu , Zixiong Wang , Shuangmin Chen , Shiqing Xin , Changhe Tu , Wenping Wang

In radiological practice, multi-sequence MRI is routinely acquired to characterize anatomy and tissue. However, due to the heterogeneity of imaging protocols and contra-indications to contrast agents, some MRI sequences, e.g.…

Image and Video Processing · Electrical Eng. & Systems 2023-09-12 Yunjie Chen , Marius Staring , Jelmer M. Wolterink , Qian Tao

In this paper, we propose a probabilistic representation of MultiLayer Perceptrons (MLPs) to improve the information-theoretic interpretability. Above all, we demonstrate that the activations being i.i.d. is not valid for all the hidden…

Machine Learning · Computer Science 2020-10-28 Xinjie Lan , Kenneth E. Barner

Although neural radiance fields (NeRF) have shown impressive advances for novel view synthesis, most methods typically require multiple input images of the same scene with accurate camera poses. In this work, we seek to substantially reduce…

Computer Vision and Pattern Recognition · Computer Science 2022-10-17 Kai-En Lin , Lin Yen-Chen , Wei-Sheng Lai , Tsung-Yi Lin , Yi-Chang Shih , Ravi Ramamoorthi

In many recent works, multi-layer perceptions (MLPs) have been shown to be suitable for modeling complex spatially-varying functions including images and 3D scenes. Although the MLPs are able to represent complex scenes with unprecedented…

Computer Vision and Pattern Recognition · Computer Science 2023-07-04 Animesh Karnewar , Tobias Ritschel , Oliver Wang , Niloy J. Mitra

Accurately reconstructing road surfaces is pivotal for various applications especially in autonomous driving. This paper introduces a position encoding Multi-Layer Perceptrons (MLPs) framework to reconstruct road surfaces, with input as…

Computer Vision and Pattern Recognition · Computer Science 2024-05-29 Ruibo Wang , Song Zhang , Ping Huang , Donghai Zhang , Haoyu Chen

Implicit Neural Representations (INRs) based on vanilla Multi-Layer Perceptrons (MLPs) are widely believed to be incapable of representing high-frequency content. This has directed research efforts towards architectural interventions, such…

Computer Vision and Pattern Recognition · Computer Science 2025-12-17 Julian McGinnis , Florian A. Hölzl , Suprosanna Shit , Florentin Bieder , Paul Friedrich , Mark Mühlau , Björn Menze , Daniel Rueckert , Benedikt Wiestler

The construction of a multilayer perceptron (MLP) as a piecewise low-order polynomial approximator using a signal processing approach is presented in this work. The constructed MLP contains one input, one intermediate and one output layers.…

Machine Learning · Computer Science 2020-10-16 Ruiyuan Lin , Suya You , Raghuveer Rao , C. -C. Jay Kuo

Near-Periodic Patterns (NPP) are ubiquitous in man-made scenes and are composed of tiled motifs with appearance differences caused by lighting, defects, or design elements. A good NPP representation is useful for many applications including…

Computer Vision and Pattern Recognition · Computer Science 2022-08-29 Bowei Chen , Tiancheng Zhi , Martial Hebert , Srinivasa G. Narasimhan

Implicit Neural Representations (INR) use multilayer perceptrons to represent high-frequency functions in low-dimensional problem domains. Recently these representations achieved state-of-the-art results on tasks related to complex 3D…

Computer Vision and Pattern Recognition · Computer Science 2021-09-02 Nuri Benbarka , Timon Höfer , Hamd ul-moqeet Riaz , Andreas Zell

The ability of neural networks to represent more features than neurons makes interpreting them challenging. This phenomenon, known as superposition, has spurred efforts to find architectures that are more interpretable than standard…

Machine Learning · Computer Science 2023-05-08 Lee Sharkey