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The diffusion model has gained popularity in vision applications due to its remarkable generative performance and versatility. However, high storage and computation demands, resulting from the model size and iterative generation, hinder its…

Computer Vision and Pattern Recognition · Computer Science 2023-12-12 Junhyuk So , Jungwon Lee , Daehyun Ahn , Hyungjun Kim , Eunhyeok Park

Image defocus is inherent in the physics of image formation caused by the optical aberration of lenses, providing plentiful information on image quality. Unfortunately, existing quality enhancement approaches for compressed images neglect…

Image and Video Processing · Electrical Eng. & Systems 2023-03-14 Qunliang Xing , Mai Xu , Xin Deng , Yichen Guo

We study the problem of attribute compression for large-scale unstructured 3D point clouds. Through an in-depth exploration of the relationships between different encoding steps and different attribute channels, we introduce a deep…

Computer Vision and Pattern Recognition · Computer Science 2022-04-12 Guangchi Fang , Qingyong Hu , Hanyun Wang , Yiling Xu , Yulan Guo

Quantization is a technique for creating efficient Deep Neural Networks (DNNs), which involves performing computations and storing tensors at lower bit-widths than f32 floating point precision. Quantization reduces model size and inference…

Machine Learning · Computer Science 2023-10-02 Eliska Kloberdanz , Wei Le

Most existing image tokenizers encode images into a fixed number of tokens or patches, overlooking the inherent variability in image complexity. To address this, we introduce Content-Adaptive Tokenizer (CAT), which dynamically adjusts…

Computer Vision and Pattern Recognition · Computer Science 2025-01-07 Junhong Shen , Kushal Tirumala , Michihiro Yasunaga , Ishan Misra , Luke Zettlemoyer , Lili Yu , Chunting Zhou

Quantizing deep convolutional neural networks for image super-resolution substantially reduces their computational costs. However, existing works either suffer from a severe performance drop in ultra-low precision of 4 or lower bit-widths,…

Computer Vision and Pattern Recognition · Computer Science 2022-07-08 Cheeun Hong , Heewon Kim , Sungyong Baik , Junghun Oh , Kyoung Mu Lee

Recent expansions in multimedia devices gather enormous amounts of real-time images for processing and inference. The images are first compressed using compression schemes, like JPEG, to reduce storage costs and power for transmitting the…

Image and Video Processing · Electrical Eng. & Systems 2024-06-25 Ming-Che Li , Archisman Ghosh , Shreyas Sen

This paper addresses the challenges of storage and communication costs for large-scale datasets in resource-constrained edge devices by proposing a novel dataset quantization approach to reduce intra-sample redundancy. Unlike traditional…

Computer Vision and Pattern Recognition · Computer Science 2025-12-09 Chenyue Yu , Jianyu Yu

Diffusion-based generative image compression has demonstrated remarkable potential for achieving realistic reconstruction at ultra-low bitrates. The key to unlocking this potential lies in making the entire compression process…

Computer Vision and Pattern Recognition · Computer Science 2026-03-26 Xihua Sheng , Lingyu Zhu , Tianyu Zhang , Dong Liu , Shiqi Wang , Jing Wang

Modern computer vision requires processing large amounts of data, both while training the model and/or during inference, once the model is deployed. Scenarios where images are captured and processed in physically separated locations are…

Computer Vision and Pattern Recognition · Computer Science 2021-03-30 Sudeep Katakol , Basem Elbarashy , Luis Herranz , Joost van de Weijer , Antonio M. Lopez

This paper presents the performance of different blockbased discrete cosine transform (DCT) algorithms for compressing color image. In this RGB component of color image are converted to YCbCr before DCT transform is applied. Y is luminance…

Computer Vision and Pattern Recognition · Computer Science 2012-08-16 Walaa M. Abd-Elhafiez , Wajeb Gharibi

Medical image compression is a widely studied field of data processing due to its prevalence in modern digital databases. This domain requires a high color depth of 12 bits per pixel component for accurate analysis by physicians, primarily…

Image and Video Processing · Electrical Eng. & Systems 2024-11-11 Taaha Khan

Camera relocalization relies on 3D models of the scene with a large memory footprint that is incompatible with the memory budget of several applications. One solution to reduce the scene memory size is map compression by removing certain 3D…

Computer Vision and Pattern Recognition · Computer Science 2024-07-25 Zakaria Laskar , Iaroslav Melekhov , Assia Benbihi , Shuzhe Wang , Juho Kannala

In digital images, the performance of optical aberration is a multivariate degradation, where the spectral of the scene, the lens imperfections, and the field of view together contribute to the results. Besides eliminating it at the…

Computer Vision and Pattern Recognition · Computer Science 2023-05-11 Shiqi Chen , Jinwen Zhou , Menghao Li , Yueting Chen , Tingting Jiang

Despite the widespread use of text-to-image diffusion models across various tasks, their computational and memory demands limit practical applications. To mitigate this issue, quantization of diffusion models has been explored. It reduces…

Computer Vision and Pattern Recognition · Computer Science 2025-02-13 Hyogon Ryu , NaHyeon Park , Hyunjung Shim

Underwater image enhancement plays a crucial role in providing reliable visual information for underwater platforms, since strong absorption and scattering in water-related environments generally lead to image quality degradation. Existing…

Computer Vision and Pattern Recognition · Computer Science 2026-03-18 Yiqiang Zhou , Yifan Chen , Zhe Sun , Jijun Lu , Ye Zheng , Xuelong Li

Visual generation quality has been greatly promoted with the rapid advances in diffusion transformers (DiTs), which is attributed to the scaling of model size and complexity. However, these attributions also hinder the practical deployment…

Computer Vision and Pattern Recognition · Computer Science 2025-09-30 Kai Liu , Shaoqiu Zhang , Linghe Kong , Yulun Zhang

Over the last decades, hand-crafted feature extractors have been used to encode image visual properties into feature vectors. Recently, data-driven feature learning approaches have been successfully explored as alternatives for producing…

Computer Vision and Pattern Recognition · Computer Science 2020-11-25 Érico M. Pereira , Ricardo da S. Torres , Jefersson A. dos Santos

Applying image sensors in automation of Industrial Internet of Things (IIoT) technology is on the rise, day by day. In such companies, a large number of high volume images are transmitted at any moment; therefore, a significant challenge is…

Image and Video Processing · Electrical Eng. & Systems 2021-12-13 Nahid Hajizadeh , Pirooz Shamsinejad , Reza Javidan

The degradation in the underwater images is due to wavelength-dependent light attenuation, scattering, and to the diversity of the water types in which they are captured. Deep neural networks take a step in this field, providing autonomous…

Computer Vision and Pattern Recognition · Computer Science 2023-02-03 Rita Pucci , Christian Micheloni , Niki Martinel