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Current benchmarks for optical flow algorithms evaluate the estimation quality by comparing their predicted flow field with the ground truth, and additionally may compare interpolated frames, based on these predictions, with the correct…

Computer Vision and Pattern Recognition · Computer Science 2019-03-27 Hui Men , Hanhe Lin , Vlad Hosu , Daniel Maurer , Andres Bruhn , Dietmar Saupe

Image super-resolution (SR) has been widely investigated in recent years. However, it is challenging to fairly estimate the performance of various SR methods, as the lack of reliable and accurate criteria for the perceptual quality.…

Image and Video Processing · Electrical Eng. & Systems 2024-10-28 Yuqing Liu , Qi Jia , Shanshe Wang , Siwei Ma , Wen Gao

As the immersive multimedia techniques like Free-viewpoint TV (FTV) develop at an astonishing rate, user's demand for high-quality immersive contents increases dramatically. Unlike traditional uniform artifacts, the distortions within…

Image and Video Processing · Electrical Eng. & Systems 2019-07-09 Ling suiyi , Li Jing , Le Callet Patrick , Wang Junle

Imperceptible digital watermarking is important in copyright protection, misinformation prevention, and responsible generative AI. We propose TrustMark - a GAN-based watermarking method with novel design in architecture and spatio-spectra…

Computer Vision and Pattern Recognition · Computer Science 2023-12-01 Tu Bui , Shruti Agarwal , John Collomosse

Image enhancement aims at processing an input image so that the visual content of the output image is more pleasing or more useful for certain applications. Although histogram equalization is widely used in image enhancement due to its…

Computer Vision and Pattern Recognition · Computer Science 2021-01-18 Xiangyuan Zhu , Xiaoming Xiao , Tardi Tjahjadi , Zhihu Wu , Jin Tang

In most practical situations, the compression or transmission of images and videos creates distortions that will eventually be perceived by a human observer. Vice versa, image and video restoration techniques, such as inpainting or…

Computer Vision and Pattern Recognition · Computer Science 2017-11-29 Rafael Reisenhofer , Sebastian Bosse , Gitta Kutyniok , Thomas Wiegand

The challenges faced in the digital world are many, which could be resolved with some biometric recognition methods. These biometric recognition methods are encompassed within watermarking technology, steganography, cryptography, and many…

Cryptography and Security · Computer Science 2021-11-04 Osama R. Shahin , Zeinab M. Abdel Azim , Ahmed I Taloba

Single image super-resolution is the task of inferring a high-resolution image from a single low-resolution input. Traditionally, the performance of algorithms for this task is measured using pixel-wise reconstruction measures such as peak…

Computer Vision and Pattern Recognition · Computer Science 2018-01-16 Mehdi S. M. Sajjadi , Bernhard Schölkopf , Michael Hirsch

Full-reference image quality metrics (FR-IQMs) aim to measure the visual differences between a pair of reference and distorted images, with the goal of accurately predicting human judgments. However, existing FR-IQMs, including traditional…

Computer Vision and Pattern Recognition · Computer Science 2024-01-18 Uğur Çoğalan , Mojtaba Bemana , Hans-Peter Seidel , Karol Myszkowski

Most existing dehazing algorithms often use hand-crafted features or Convolutional Neural Networks (CNN)-based methods to generate clear images using pixel-level Mean Square Error (MSE) loss. The generated images generally have better…

Computer Vision and Pattern Recognition · Computer Science 2019-11-22 Yanting Pei , Yaping Huang , Xingyuan Zhang

Screen-shooting robust watermarking aims to imperceptibly embed extractable information into host images such that the watermark survives the complex distortion pipeline of screen display and camera recapture. However, achieving high…

Computer Vision and Pattern Recognition · Computer Science 2026-03-31 Jiayi Qin , Jingwei Li , Chuan Wu

A novel color image enhancement method is proposed based on Retinex to enhance color images under non-uniform illumination or poor visibility conditions. Different from the conventional Retinex algorithms, the Weighted Guided Image Filter…

Computer Vision and Pattern Recognition · Computer Science 2018-12-27 Qi Mu , Yanyan Wei , Zhanli Li

We propose a simple method for estimating noise level from a single color image. In most image-denoising algorithms, an accurate noise-level estimate results in good denoising performance; however, it is difficult to estimate noise level…

Computer Vision and Pattern Recognition · Computer Science 2019-04-05 Akihiro Nakamura , Michihiro Kobayashi

Visible watermark removal which involves watermark cleaning and background content restoration is pivotal to evaluate the resilience of watermarks. Existing deep neural network (DNN)-based models still struggle with large-area watermarks…

Computer Vision and Pattern Recognition · Computer Science 2025-04-08 Yicheng Leng , Chaowei Fang , Junye Chen , Yixiang Fang , Sheng Li , Guanbin Li

Image retargeting effectively resizes images by preserving the recognizability of important image regions. Most of retargeting methods rely on good importance maps as a cue to retain or remove certain regions in the input image. In…

Computer Vision and Pattern Recognition · Computer Science 2017-09-25 Tam V. Nguyen , Guangyu Gao

Non-maximum suppression (NMS) is an essential post-processing module used in many 3D object detection frameworks to remove overlapping candidate bounding boxes. However, an overreliance on classification scores and difficulties in…

Computer Vision and Pattern Recognition · Computer Science 2023-10-24 Li Wang , Xinyu Zhang , Fachuan Zhao , Chuze Wu , Yichen Wang , Ziying Song , Lei Yang , Jun Li , Huaping Liu

Validation of the quality of pansharpening methods is a difficult task because the reference is not directly available. In the meantime, two main approaches have been established: validation in reduced resolution and original resolution. In…

Computer Vision and Pattern Recognition · Computer Science 2021-11-16 Gintautas Palubinskas

The performance of the Fingerprint recognition system will be more accurate with respect of enhancement for the fingerprint images. In this paper we develop a novel method for Fingerprint image contrast enhancement technique based on the…

Computer Vision and Pattern Recognition · Computer Science 2011-06-29 D. Bennet , Dr. S. Arumuga Perumal

Digital watermarking has been widely studied for the protection of intellectual property. Traditional watermarking schemes often design in a "wider" rule, which applies one general embedding mechanism to all images. But this will limit the…

Cryptography and Security · Computer Science 2022-04-26 Zhaoyang Jia , Han Fang , Zehua Ma , Weiming Zhang

As the evolution of multiview display technology is bringing glasses-free 3DTV closer to reality, MPEG and VCEG are preparing an extension to HEVC to encode multiview video content. View synthesis in the current version of the 3D video…

Image and Video Processing · Electrical Eng. & Systems 2018-03-14 Amin Banitalebi-Dehkordi , Mahsa T. Pourazad , Panos Nasiopoulos