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Vector Quantized Variational Autoencoders (VQ-VAEs) are fundamental models that compress continuous visual data into discrete tokens. Existing methods have tried to improve the quantization strategy for better reconstruction quality,…

计算机视觉与模式识别 · 计算机科学 2025-07-15 Mingkai Jia , Wei Yin , Xiaotao Hu , Jiaxin Guo , Xiaoyang Guo , Qian Zhang , Xiao-Xiao Long , Ping Tan

Addressing the issues of severe noise and high frequency structural degradation in visible images under low-light conditions, this paper proposes a Near Infrared (NIR) aided low light image restoration method based on Frequency Decoupled…

计算机视觉与模式识别 · 计算机科学 2026-04-21 Ligen Shi , Zengyu Pang , Chang Liu , Shuchen Sun , Jun Qiu

Low light images suffer from severe noise, low brightness, low contrast, etc. In previous researches, many image enhancement methods have been proposed, but few methods can deal with these problems simultaneously. In this paper, to solve…

图像与视频处理 · 电气工程与系统科学 2020-08-27 Yu Zhang , Xiaoguang Di , Bin Zhang , Ruihang Ji , Chunhui Wang

Variational Quantum Circuits (VQC) lie at the forefront of quantum machine learning research. Still, the use of quantum networks for real data processing remains challenging as the number of available qubits cannot accommodate a large…

量子物理 · 物理学 2024-09-06 G. Maragkopoulos , A. Mandilara , A. Tsili , D. Syvridis

Albeit progress has been made in Composed Image Retrieval (CIR), we empirically find that a certain percentage of failure retrieval results are not consistent with their relative captions. To address this issue, this work provides a Visual…

计算机视觉与模式识别 · 计算机科学 2023-12-20 Chun-Mei Feng , Yang Bai , Tao Luo , Zhen Li , Salman Khan , Wangmeng Zuo , Xinxing Xu , Rick Siow Mong Goh , Yong Liu

Vector-Quantized Variational Autoencoders (VQ-VAE)[1] provide an unsupervised model for learning discrete representations by combining vector quantization and autoencoders. In this paper, we study the use of VQ-VAE for representation…

图像与视频处理 · 电气工程与系统科学 2019-03-05 Hanwei Wu , Markus Flierl

Deep neural networks (DNNs) have shown very promising results for various image restoration (IR) tasks. However, the design of network architectures remains a major challenging for achieving further improvements. While most existing…

计算机视觉与模式识别 · 计算机科学 2020-10-28 Weisheng Dong , Peiyao Wang , Wotao Yin , Guangming Shi , Fangfang Wu , Xiaotong Lu

Most sRGB-based LLIE methods suffer from entangled luminance and color, while the HSV color space offers insufficient decoupling at the cost of introducing significant red and black noise artifacts. Recently, the HVI color space has been…

计算机视觉与模式识别 · 计算机科学 2026-03-12 Zhixin Cheng , Fangwen Zhang , Xiaotian Yin , Baoqun Yin , Haodian Wang

Recent advancements in implicit neural representations have contributed to high-fidelity surface reconstruction and photorealistic novel view synthesis. However, the computational complexity inherent in these methodologies presents a…

计算机视觉与模式识别 · 计算机科学 2023-10-24 Yiying Yang , Wen Liu , Fukun Yin , Xin Chen , Gang Yu , Jiayuan Fan , Tao Chen

Restoring severely blurred images remains a significant challenge in computer vision, impacting applications in autonomous driving, medical imaging, and photography. This paper introduces a novel training strategy based on curriculum…

计算机视觉与模式识别 · 计算机科学 2025-04-14 Sushant Gautam , Jingdao Chen

Images acquired in low-light environments present significant obstacles for computer vision systems and human perception, especially for applications requiring accurate object recognition and scene analysis. Such images typically manifest…

图像与视频处理 · 电气工程与系统科学 2025-10-28 Bibhabasu Debnath , Sahana Ray , Sanjay Ghosh

Imaging under photon-scarce situations introduces challenges to many applications as the captured images are with low signal-to-noise ratio and poor luminance. In this paper, we investigate the raw image restoration under low-photon-count…

图像与视频处理 · 电气工程与系统科学 2021-11-03 Shansi Zhang , Edmund Y. Lam

Blind face restoration is a highly ill-posed problem that often requires auxiliary guidance to 1) improve the mapping from degraded inputs to desired outputs, or 2) complement high-quality details lost in the inputs. In this paper, we…

计算机视觉与模式识别 · 计算机科学 2022-11-02 Shangchen Zhou , Kelvin C. K. Chan , Chongyi Li , Chen Change Loy

In the image acquisition process, various forms of degradation, including noise, haze, and rain, are frequently introduced. These degradations typically arise from the inherent limitations of cameras or unfavorable ambient conditions. To…

计算机视觉与模式识别 · 计算机科学 2024-03-22 Yuning Cui , Syed Waqas Zamir , Salman Khan , Alois Knoll , Mubarak Shah , Fahad Shahbaz Khan

Low-light image enhancement (LLIE) is a crucial task in computer vision aimed at enhancing the visual fidelity of images captured under low-illumination conditions. Conventional methods frequently struggle with noise, overexposure, and…

图像与视频处理 · 电气工程与系统科学 2025-07-17 Namrah Siddiqua , Kim Suneung , Seong-Whan Lee

Motion blur in scene text images severely impairs readability and hinders the reliability of computer vision tasks, including autonomous driving, document digitization, and visual information retrieval. Conventional deblurring approaches…

计算机视觉与模式识别 · 计算机科学 2025-11-11 Umar Rashid , Muhammad Arslan Arshad , Ghulam Ahmad , Muhammad Zeeshan Anjum , Rizwan Khan , Muhammad Akmal

The proliferation of single-photon image sensors has opened the door to a plethora of high-speed and low-light imaging applications. However, data collected by these sensors are often 1-bit or few-bit, and corrupted by noise and strong…

图像与视频处理 · 电气工程与系统科学 2024-11-18 Prateek Chennuri , Yiheng Chi , Enze Jiang , G. M. Dilshan Godaliyadda , Abhiram Gnanasambandam , Hamid R. Sheikh , Istvan Gyongy , Stanley H. Chan

Vector quantization (VQ) is a key technique in high-resolution and high-fidelity image synthesis, which aims to learn a codebook to encode an image with a sequence of discrete codes and then generate an image in an auto-regression manner.…

计算机视觉与模式识别 · 计算机科学 2024-10-10 Guotao Liang , Baoquan Zhang , Yaowei Wang , Xutao Li , Yunming Ye , Huaibin Wang , Chuyao Luo , Kola Ye , linfeng Luo

When taking photos in dim-light environments, due to the small amount of light entering, the shot images are usually extremely dark, with a great deal of noise, and the color cannot reflect real-world color. Under this condition, the…

计算机视觉与模式识别 · 计算机科学 2019-04-17 Di Zhao , Lan Ma , Songnan Li , Dahai Yu

Existing vector quantization (VQ) based autoregressive models follow a two-stage generation paradigm that first learns a codebook to encode images as discrete codes, and then completes generation based on the learned codebook. However, they…

计算机视觉与模式识别 · 计算机科学 2023-05-22 Mengqi Huang , Zhendong Mao , Zhuowei Chen , Yongdong Zhang