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In this paper, we propose a simple while effective unsupervised deep feature transfer algorithm for low resolution image classification. No fine-tuning on convenet filters is required in our method. We use pre-trained convenet to extract…

Computer Vision and Pattern Recognition · Computer Science 2019-10-22 Yuanwei Wu , Ziming Zhang , Guanghui Wang

The dominant image-to-image translation methods are based on fully convolutional networks, which extract and translate an image's features and then reconstruct the image. However, they have unacceptable computational costs when working with…

Computer Vision and Pattern Recognition · Computer Science 2022-07-12 Yuda Song , Hui Qian , Xin Du

High Dynamic Range (HDR) video reconstruction aims to recover fine brightness, color, and details from Low Dynamic Range (LDR) videos. However, existing methods often suffer from color inaccuracies and temporal inconsistencies. To address…

Image and Video Processing · Electrical Eng. & Systems 2026-02-10 Yang Zhang , Zhangkai Ni , Wenhan Yang , Hanli Wang

Homomorphic permutation is fundamental to privacy-preserving computations based on batch-encoding homomorphic encryption. It underpins nearly all homomorphic matrix operations and predominantly influences their complexity. Permutation…

Cryptography and Security · Computer Science 2025-11-27 Xirong Ma , Junling Fang , Chunpeng Ge , Dung Hoang Duong , Yali Jiang , Yanbin Li , Willy Susilo , Lizhen Cui

Light field imaging is characterized by capturing brightness, color, and directional information of light rays in a scene. This leads to image representations with huge amount of data that require efficient coding schemes. In this paper,…

Computer Vision and Pattern Recognition · Computer Science 2019-02-01 Hadi Amirpour , Antonio Pinheiro , Manuela Pereira , Mohammad Ghanbari

Image compression under ultra-low bitrates remains challenging for both conventional learned image compression (LIC) and generative vector-quantized (VQ) modeling. Conventional LIC suffers from severe artifacts due to heavy quantization,…

Computer Vision and Pattern Recognition · Computer Science 2025-11-24 Lei Lu , Yize Li , Yanzhi Wang , Wei Wang , Wei Jiang

Image color harmonization algorithm aims to automatically match the color distribution of foreground and background images captured in different conditions. Previous deep learning based models neglect two issues that are critical for…

Computer Vision and Pattern Recognition · Computer Science 2022-07-21 Ben Xue , Shenghui Ran , Quan Chen , Rongfei Jia , Binqiang Zhao , Xing Tang

Recent work has shown that learned image compression strategies can outperform standard hand-crafted compression algorithms that have been developed over decades of intensive research on the rate-distortion trade-off. With growing…

Image and Video Processing · Electrical Eng. & Systems 2021-11-04 Felipe Codevilla , Jean Gabriel Simard , Ross Goroshin , Chris Pal

Lossy compression introduces complex compression artifacts, particularly the blocking artifacts, ringing effects and blurring. Existing algorithms either focus on removing blocking artifacts and produce blurred output, or restores sharpened…

Computer Vision and Pattern Recognition · Computer Science 2015-04-28 Chao Dong , Yubin Deng , Chen Change Loy , Xiaoou Tang

This paper presents a hybrid digital image watermarking based on Discrete Wavelet Transform (DWT), Discrete Cosine Transform (DCT) and Singular Value Decomposition (SVD) in a zigzag order. From DWT we choose the high band to embed the…

Multimedia · Computer Science 2013-07-25 Mohammad Ibrahim Khan , Md. Maklachur Rahman , Md. Iqbal Hasan Sarker

{The study of frequency components derived from Discrete Cosine Transform (DCT) has been widely used in image analysis. In recent years it has been observed that significant information can be extrapolated from them about the lifecycle of…

Computer Vision and Pattern Recognition · Computer Science 2024-03-25 Claudio Vittorio Ragaglia , Francesco Guarnera , Sebastiano Battiato

Although certain vision transformer (ViT) and CNN architectures generalize well on vision tasks, it is often impractical to use them on green, edge, or desktop computing due to their computational requirements for training and even testing.…

Computer Vision and Pattern Recognition · Computer Science 2022-03-09 Pranav Jeevan , Amit Sethi

Neural Representations for Videos (NeRV) have simplified the video codec process and achieved swift decoding speeds by encoding video content into a neural network, presenting a promising solution for video compression. However, existing…

Computer Vision and Pattern Recognition · Computer Science 2025-05-01 Li Yu , Zhihui Li , Jimin Xiao , Moncef Gabbouj

We present a novel approach of color transfer between images by exploring their high-level semantic information. First, we set up a database which consists of the collection of downloaded images from the internet, which are segmented…

Computer Vision and Pattern Recognition · Computer Science 2016-12-30 Asad Khan , Muhammad Ahmad , Yudong Guo , Ligang Liu

With the growing popularity of the Internet, digital images are used and transferred more frequently. Although this phenomenon facilitates easy access to information, it also creates security concerns and violates intellectual property…

Image and Video Processing · Electrical Eng. & Systems 2022-11-01 Alireza Tavakoli , Zahra Honjani , Hedieh Sajedi

In recent years, large visual language models (LVLMs) have shown impressive performance and promising generalization capability in multi-modal tasks, thus replacing humans as receivers of visual information in various application scenarios.…

Computer Vision and Pattern Recognition · Computer Science 2024-07-25 Binzhe Li , Shurun Wang , Shiqi Wang , Yan Ye

Denoising of images is a crucial preprocessing step in medical imaging, essential for improving diagnostic clarity. While deep learning methods offer state-of-the-art performance, their computational complexity and data requirements can be…

Statistical Mechanics · Physics 2025-10-01 M. Ali Saif , Bassam M. Mughalles , Ibrahim G. H. Loqman

This paper introduces a novel indexing and access method, called Feature- Based Adaptive Tolerance Tree (FATT), using wavelet transform is proposed to organize large image data sets efficiently and to support popular image access mechanisms…

Multimedia · Computer Science 2010-04-09 Dr. P. AnandhaKumar , V. Balamurugan

Image inpainting, which refers to the synthesis of missing regions in an image, can help restore occluded or degraded areas and also serve as a precursor task for self-supervision. The current state-of-the-art models for image inpainting…

Computer Vision and Pattern Recognition · Computer Science 2023-07-04 Pranav Jeevan , Dharshan Sampath Kumar , Amit Sethi

In unsecured network environments, ownership protection of digital contents, such as images, is becoming a growing concern. Different watermarking methods have been proposed to address the copyright protection of digital materials.…

Multimedia · Computer Science 2020-04-08 Mahsa Kadkhodaei , Shadrokh Samavi