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This paper presents deep unfolding neural networks to handle inverse problems in photothermal radiometry enabling super resolution (SR) imaging. Photothermal imaging is a well-known technique in active thermography for nondestructive…

计算机视觉与模式识别 · 计算机科学 2021-04-22 Samim Ahmadi , Linh Kästner , Jan Christian Hauffen , Peter Jung , Mathias Ziegler

Neural radiance fields (NeRF) has gained significant attention for its exceptional visual effects. However, most existing NeRF methods reconstruct 3D scenes from RGB images captured by visible light cameras. In practical scenarios like…

计算机视觉与模式识别 · 计算机科学 2024-10-08 Chonghao Zhong , Chao Xu

Single image super-resolution (SISR) is the process of obtaining one high-resolution version of a low-resolution image by increasing the number of pixels per unit area. This method has been actively investigated by the research community,…

图像与视频处理 · 电气工程与系统科学 2022-10-11 George Corrêa de Araújo , Helio Pedrini

Synthesizing a densely sampled light field from a single image is highly beneficial for many applications. Moreover, jointly solving both angular and spatial super-resolution problem also introduces new possibilities in light field imaging.…

图像与视频处理 · 电气工程与系统科学 2020-06-30 Andre Ivan , Williem , In Kyu Park

Image Super-Resolution (ISR) has seen significant progress with the introduction of remarkable generative models. However, challenges such as the trade-off issues between fidelity and realism, as well as computational complexity, have also…

计算机视觉与模式识别 · 计算机科学 2025-02-03 Yunpeng Qu , Kun Yuan , Jinhua Hao , Kai Zhao , Qizhi Xie , Ming Sun , Chao Zhou

Diffusion prior-based methods have shown impressive results in real-world image super-resolution (SR). However, most existing methods entangle pixel-level and semantic-level SR objectives in the training process, struggling to balance…

计算机视觉与模式识别 · 计算机科学 2025-04-04 Lingchen Sun , Rongyuan Wu , Zhiyuan Ma , Shuaizheng Liu , Qiaosi Yi , Lei Zhang

Reliably reconstructing physical fields from sparse sensor data is a challenge that frequently arises in many scientific domains. In practice, the process generating the data often is not understood to sufficient accuracy. Therefore, there…

机器学习 · 计算机科学 2024-01-23 Xihaier Luo , Wei Xu , Yihui Ren , Shinjae Yoo , Balu Nadiga

Recently, many convolutional neural networks for single image super-resolution (SISR) have been proposed, which focus on reconstructing the high-resolution images in terms of objective distortion measures. However, the networks trained with…

图像与视频处理 · 电气工程与系统科学 2019-11-12 Jae Woong Soh , Gu Yong Park , Junho Jo , Nam Ik Cho

Blind Super-Resolution (SR) usually involves two sub-problems: 1) estimating the degradation of the given low-resolution (LR) image; 2) super-resolving the LR image to its high-resolution (HR) counterpart. Both problems are ill-posed due to…

计算机视觉与模式识别 · 计算机科学 2023-08-21 Zhengxiong Luo , Yan Huang , Shang Li , Liang Wang , Tieniu Tan

Neural Radiance Fields (NeRF) show impressive performance for the photorealistic free-view rendering of scenes. However, NeRFs require dense sampling of images in the given scene, and their performance degrades significantly when only a…

计算机视觉与模式识别 · 计算机科学 2023-09-15 Nagabhushan Somraj , Adithyan Karanayil , Rajiv Soundararajan

Current deep image super-resolution (SR) approaches aim to restore high-resolution images from down-sampled images or by assuming degradation from simple Gaussian kernels and additive noises. However, these techniques only assume crude…

计算机视觉与模式识别 · 计算机科学 2024-09-06 Hu Wang , Congbo Ma , Jianpeng Zhang , Wei Emma Zhang , Gustavo Carneiro

In an effort to improve the efficiency and scalability of single-image super-resolution (SISR) applications, we introduce AnySR, to rebuild existing arbitrary-scale SR methods into any-scale, any-resource implementation. As a contrast to…

计算机视觉与模式识别 · 计算机科学 2024-10-11 Wengyi Zhan , Mingbao Lin , Chia-Wen Lin , Rongrong Ji

Great successes have been achieved using deep learning techniques for image super-resolution (SR) with fixed scales. To increase its real world applicability, numerous models have also been proposed to restore SR images with arbitrary scale…

图像与视频处理 · 电气工程与系统科学 2022-09-28 Zhihong Pan , Baopu Li , Dongliang He , Wenhao Wu , Errui Ding

Neural radiance fields (NeRF) have revolutionized the field of image-based view synthesis. However, NeRF uses straight rays and fails to deal with complicated light path changes caused by refraction and reflection. This prevents NeRF from…

计算机视觉与模式识别 · 计算机科学 2023-09-25 Xiaoxue Chen , Junchen Liu , Hao Zhao , Guyue Zhou , Ya-Qin Zhang

We investigate image segmentation of cells under the lens of scalar fields. Our goal is to learn a continuous scalar field on image domains such that its segmentation produces robust instances for cells present in images. This field is a…

计算机视觉与模式识别 · 计算机科学 2025-11-19 Kevin I. Ruiz Vargas , Gabriel G. Galdino , Tsang Ing Ren , Alexandre L. Cunha

Arbitrary-resolution super-resolution (ARSR) provides crucial flexibility for medical image analysis by adapting to diverse spatial resolutions. However, traditional CNN-based methods are inherently ill-suited for ARSR, as they are…

图像与视频处理 · 电气工程与系统科学 2025-08-06 Bo Zhang , JianFei Huo , Zheng Zhang , Wufan Wang , Hui Gao , Xiangyang Gong , Wendong Wang

Raster images can have a range of various distortions connected to their raster structure. Upsampling them might in effect substantially yield the raster structure of the original image, known as aliasing. The upsampling itself may…

计算机视觉与模式识别 · 计算机科学 2007-05-23 Artur Rataj

Neural Radiance Field (NeRF) is a popular method in representing 3D scenes by optimising a continuous volumetric scene function. Its large success which lies in applying volumetric rendering (VR) is also its Achilles' heel in producing…

计算机视觉与模式识别 · 计算机科学 2023-05-11 Zhe Jun Tang , Tat-Jen Cham , Haiyu Zhao

Despite the remarkable achievements of neural radiance fields (NeRF) in representing 3D scenes and generating novel view images, the aliasing issue, rendering "jaggies" or "blurry" images at varying camera distances, remains unresolved in…

计算机视觉与模式识别 · 计算机科学 2024-02-23 Seungtae Nam , Daniel Rho , Jong Hwan Ko , Eunbyung Park

High Resolution (HR) medical images provide rich anatomical structure details to facilitate early and accurate diagnosis. In MRI, restricted by hardware capacity, scan time, and patient cooperation ability, isotropic 3D HR image acquisition…

图像与视频处理 · 电气工程与系统科学 2022-12-01 Qing Wu , Yuwei Li , Yawen Sun , Yan Zhou , Hongjiang Wei , Jingyi Yu , Yuyao Zhang