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Structural coloration is commonly modeled using wave optics for reliable and photorealistic rendering of natural, quasi-periodic and complex nanostructures. Such models often rely on dense, preliminary or preprocessed data to accurately…

图形学 · 计算机科学 2025-07-03 Narayan Kandel , Daljit Singh J. S. Dhillon

This paper tackles the simultaneous optimization of pose and Neural Radiance Fields (NeRF). Departing from the conventional practice of using explicit global representations for camera pose, we propose a novel overparameterized…

计算机视觉与模式识别 · 计算机科学 2024-07-18 Shin-Fang Chng , Ravi Garg , Hemanth Saratchandran , Simon Lucey

Recently, AutoRegressive (AR) models for the whole image generation empowered by transformers have achieved comparable or even better performance to Generative Adversarial Networks (GANs). Unfortunately, directly applying such AR models to…

计算机视觉与模式识别 · 计算机科学 2021-10-19 Chenjie Cao , Yuxin Hong , Xiang Li , Chengrong Wang , Chengming Xu , XiangYang Xue , Yanwei Fu

Quantitative T1rho mapping has shown promise in clinical and research studies. However, it suffers from long scan times. Deep learning-based techniques have been successfully applied in accelerated quantitative MR parameter mapping.…

图像与视频处理 · 电气工程与系统科学 2024-07-25 Yuanyuan Liu , Jinwen Xie , Zhuo-Xu Cui , Qingyong Zhu , Jing Cheng , Dong Liang , Yanjie Zhu

Existing frameworks for image stitching often provide visually reasonable stitchings. However, they suffer from blurry artifacts and disparities in illumination, depth level, etc. Although the recent learning-based stitchings relax such…

计算机视觉与模式识别 · 计算机科学 2024-01-23 Minsu Kim , Jaewon Lee , Byeonghun Lee , Sunghoon Im , Kyong Hwan Jin

Image matching that finding robust and accurate correspondences across images is a challenging task under extreme conditions. Capturing local and global features simultaneously is an important way to mitigate such an issue but recent…

计算机视觉与模式识别 · 计算机科学 2023-11-30 Wenhao Zhong , Jie Jiang

Implicit neural representations (INRs) have demonstrated strong capabilities in various medical imaging tasks, such as denoising, registration, and segmentation, by representing images as continuous functions, allowing complex details to be…

图像与视频处理 · 电气工程与系统科学 2025-03-31 Younès Moussaoui , Diana Mateus , Nasrin Taheri , Saïd Moussaoui , Thomas Carlier , Simon Stute

During and after a course of therapy, imaging is routinely used to monitor the disease progression and assess the treatment responses. Despite of its significance, reliably capturing and predicting the spatial-temporal anatomic changes from…

图像与视频处理 · 电气工程与系统科学 2024-10-28 Liang Qiu , Liyue Shen , Lianli Liu , Junyan Liu , Yizheng Chen , Lei Xing

Shape priors learned from data are commonly used to reconstruct 3D objects from partial or noisy data. Yet no such shape priors are available for indoor scenes, since typical 3D autoencoders cannot handle their scale, complexity, or…

计算机视觉与模式识别 · 计算机科学 2020-03-23 Chiyu Max Jiang , Avneesh Sud , Ameesh Makadia , Jingwei Huang , Matthias Nießner , Thomas Funkhouser

A long-standing goal in scene understanding is to obtain interpretable and editable representations that can be directly constructed from a raw monocular RGB-D video, without requiring specialized hardware setup or priors. The problem is…

计算机视觉与模式识别 · 计算机科学 2023-06-22 Yu-Shiang Wong , Niloy J. Mitra

Implicit Neural Representation (INR) as a mighty representation paradigm has achieved success in various computer vision tasks recently. Due to the low-frequency bias issue of vanilla multi-layer perceptron (MLP), existing methods have…

计算机视觉与模式识别 · 计算机科学 2024-07-08 Kexuan Shi , Xingyu Zhou , Shuhang Gu

Deep implicit functions have shown remarkable shape modeling ability in various 3D computer vision tasks. One drawback is that it is hard for them to represent a 3D shape as multiple parts. Current solutions learn various primitives and…

计算机视觉与模式识别 · 计算机科学 2022-07-26 Chao Chen , Yu-Shen Liu , Zhizhong Han

Representing shapes as level sets of neural networks has been recently proved to be useful for different shape analysis and reconstruction tasks. So far, such representations were computed using either: (i) pre-computed implicit shape…

机器学习 · 计算机科学 2020-07-10 Amos Gropp , Lior Yariv , Niv Haim , Matan Atzmon , Yaron Lipman

Recent development of neural implicit function has shown tremendous success on high-quality 3D shape reconstruction. However, most works divide the space into inside and outside of the shape, which limits their representing power to…

计算机视觉与模式识别 · 计算机科学 2024-04-10 Jianglong Ye , Yuntao Chen , Naiyan Wang , Xiaolong Wang

Implicit Neural Representations (INRs) have emerged as a powerful alternative to traditional pixel-based formats by modeling images as continuous functions over spatial coordinates. A key challenge, however, lies in the spectral bias of…

计算机视觉与模式识别 · 计算机科学 2025-08-25 Sumit Kumar Dam , Mrityunjoy Gain , Eui-Nam Huh , Choong Seon Hong

Transformer-based image denoising methods have achieved encouraging results in the past year. However, it must uses linear operations to model long-range dependencies, which greatly increases model inference time and consumes GPU storage…

计算机视觉与模式识别 · 计算机科学 2023-04-14 Juncheng Li , Bodong Cheng , Ying Chen , Guangwei Gao , Tieyong Zeng

Neural implicit representations have emerged as a powerful paradigm for 3D reconstruction. However, despite their success, existing methods fail to capture fine geometric details and thin structures, especially in scenarios where only…

计算机视觉与模式识别 · 计算机科学 2025-04-23 Aarya Patel , Hamid Laga , Ojaswa Sharma

In modern computer vision, images are typically represented as a fixed uniform grid with some stride and processed via a deep convolutional neural network. We argue that deforming the grid to better align with the high-frequency image…

计算机视觉与模式识别 · 计算机科学 2023-04-05 Jun Gao , Zian Wang , Jinchen Xuan , Sanja Fidler

Existing image-based virtual try-on methods directly transfer specific clothing to a human image without utilizing clothing attributes to refine the transferred clothing geometry and textures, which causes incomplete and blurred clothing…

计算机视觉与模式识别 · 计算机科学 2025-03-18 Xiaoyu Han , Shengping Zhang , Qinglin Liu , Zonglin Li , Chenyang Wang

Neural implicit representations have become a popular choice for modeling surfaces due to their adaptability in resolution and support for complex topology. While previous works have achieved impressive reconstruction quality by training on…

计算机视觉与模式识别 · 计算机科学 2024-08-12 Lu Sang , Abhishek Saroha , Maolin Gao , Daniel Cremers