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Variational Autoencoders (VAE) are probabilistic deep generative models underpinned by elegant theory, stable training processes, and meaningful manifold representations. However, they produce blurry images due to a lack of explicit…

Computer Vision and Pattern Recognition · Computer Science 2019-11-15 Prashnna K Gyawali , Rudra Saha , Linwei Wang , VSR Veeravasarapu , Maneesh Singh

Low-light image enhancement (LLIE) aims at improving the perception or interpretability of an image captured in an environment with poor illumination. Recent advances in this area are dominated by deep learning-based solutions, where many…

Computer Vision and Pattern Recognition · Computer Science 2021-11-08 Chongyi Li , Chunle Guo , Linghao Han , Jun Jiang , Ming-Ming Cheng , Jinwei Gu , Chen Change Loy

Event cameras are motion-activated sensors that capture pixel-level illumination changes instead of the intensity image with a fixed frame rate. Compared with the standard cameras, it can provide reliable visual perception during high-speed…

Computer Vision and Pattern Recognition · Computer Science 2023-09-27 Weipeng Guan , Peiyu Chen , Yuhan Xie , Peng Lu

This paper presents a novel probabilistic voxel selection strategy for medical image registration in time-sensitive contexts, where the goal is aggressive voxel sampling (e.g. using less than 1% of the total number) while maintaining…

Computer Vision and Pattern Recognition · Computer Science 2020-10-05 Boris N. Oreshkin , Tal Arbel

Recent embedding-based methods have achieved great successes in exploiting entity alignment from knowledge graph (KG) embeddings of multiple modalities. In this paper, we study embedding-based entity alignment (EEA) from a perspective of…

Computation and Language · Computer Science 2024-02-27 Lingbing Guo , Zhuo Chen , Jiaoyan Chen , Yin Fang , Wen Zhang , Huajun Chen

This paper demonstrates the learning of the underlying device physics by mapping device structure images to their corresponding Current-Voltage (IV) characteristics using a novel framework based on variational autoencoders (VAE). Since VAE…

Machine Learning · Computer Science 2024-01-01 Thomas Lu , Albert Lu , Hiu Yung Wong

The aim of this work is to explore the potential of pre-trained vision-language models (VLMs) for universal detection of AI-generated images. We develop a lightweight detection strategy based on CLIP features and study its performance in a…

Computer Vision and Pattern Recognition · Computer Science 2024-04-30 Davide Cozzolino , Giovanni Poggi , Riccardo Corvi , Matthias Nießner , Luisa Verdoliva

In the field of Blind Image Quality Assessment (BIQA), accurately predicting the perceptual quality of authentically distorted images remains highly challenging due to the diverse and complex distortions present in natural environments.…

Computer Vision and Pattern Recognition · Computer Science 2026-05-19 Yu Li , Puchao Zhou , Yachun Mi , Yanfeng Wu , Xiaoming Wang , Shaohui Liu

Recent developments related to generative models have made it possible to generate diverse high-fidelity images. In particular, layout-to-image generation models have gained significant attention due to their capability to generate…

Computer Vision and Pattern Recognition · Computer Science 2021-07-19 Bryan G. Cardenas , Devanshu Arya , Deepak K. Gupta

A Light Field (LF) camera consists of an additional two-dimensional array of micro-lenses placed between the main lens and sensor, compared to a conventional camera. The sensor pixels under each micro-lens receive light from a sub-aperture…

Computer Vision and Pattern Recognition · Computer Science 2025-11-11 Suresh Nehra , Aupendu Kar , Jayanta Mukhopadhyay , Prabir Kumar Biswas

Cameras capture scene-referred linear raw images, which are processed by onboard image signal processors (ISPs) into display-referred 8-bit sRGB outputs. Although raw data is more faithful for low-level vision tasks, collecting large-scale…

Computer Vision and Pattern Recognition · Computer Science 2026-04-02 Dongyoung Kim , Junyong Lee , Abhijith Punnappurath , Mahmoud Afifi , Sangmin Han , Alex Levinshtein , Michael S. Brown

We present a novel method for constructing Variational Autoencoder (VAE). Instead of using pixel-by-pixel loss, we enforce deep feature consistency between the input and the output of a VAE, which ensures the VAE's output to preserve the…

Computer Vision and Pattern Recognition · Computer Science 2024-03-21 Xianxu Hou , Linlin Shen , Ke Sun , Guoping Qiu

We present the experimental generation and analysis of both the intensity and phase of an optical vortex beam originating from a superposition of Airy-vortex beams. A new theoretical proposal is accessible to generate an array of…

Recent advances in generative image restoration (IR) have demonstrated impressive results. However, these methods are hindered by their substantial size and computational demands, rendering them unsuitable for deployment on edge devices.…

Image and Video Processing · Electrical Eng. & Systems 2025-11-17 Elad Cohen , Idan Achituve , Idit Diamant , Arnon Netzer , Hai Victor Habi

Image frames obtained in darkness are special. Just multiplying by a constant doesn't restore the image. Shot noise, quantization effects and camera non-linearities mean that colors and relative light levels are estimated poorly. Current…

Computer Vision and Pattern Recognition · Computer Science 2022-06-06 Sara Aghajanzadeh , David Forsyth

High-dynamic-range (HDR) formats and displays are becoming increasingly prevalent, yet state-of-the-art image generators (e.g., Stable Diffusion and FLUX) typically remain limited to low-dynamic-range (LDR) output due to the lack of…

Computer Vision and Pattern Recognition · Computer Science 2026-02-05 Ronghuan Wu , Wanchao Su , Kede Ma , Jing Liao , Rafał K. Mantiuk

Transfer Function (TF) generation is a fundamental problem in Direct Volume Rendering (DVR). A TF maps voxels to color and opacity values to reveal inner structures. Existing TF tools are complex and unintuitive for the users who are more…

Graphics · Computer Science 2017-12-01 Naimul Khan , Riadh Ksantini , Ling Guan

Recent advancements in deep neural networks have driven significant progress in image enhancement (IE). However, deploying deep learning models on resource-constrained platforms, such as mobile devices, remains challenging due to high…

Computer Vision and Pattern Recognition · Computer Science 2025-07-03 Hailong Yan , Ao Li , Xiangtao Zhang , Zhe Liu , Zenglin Shi , Ce Zhu , Le Zhang

In computational imaging, hardware for signal sampling and software for object reconstruction are designed in tandem for improved capability. Examples of such systems include computed tomography (CT), magnetic resonance imaging (MRI), and…

Image and Video Processing · Electrical Eng. & Systems 2022-11-01 Andrew Olsen , Yolanda Hu , Vidya Ganapati

We present a novel approach for synthesizing realistic novel views using Neural Radiance Fields (NeRF) with uncontrolled photos in the wild. While NeRF has shown impressive results in controlled settings, it struggles with transient objects…

Computer Vision and Pattern Recognition · Computer Science 2026-02-05 Shuaixian Wang , Haoran Xu , Yaokun Li , Jiwei Chen , Guang Tan