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Image enhancement is a critical task in computer vision and photography that is often entangled with noise. This renders the traditional Image Signal Processing (ISP) ineffective compared to the advances in deep learning. However, the…

Image and Video Processing · Electrical Eng. & Systems 2026-01-21 Srinivas Miriyala , Sowmya Vajrala , Hitesh Kumar , Sravanth Kodavanti , Vikram Rajendiran

Despite a rapid rise in the quality of built-in smartphone cameras, their physical limitations - small sensor size, compact lenses and the lack of specific hardware, - impede them to achieve the quality results of DSLR cameras. In this work…

Computer Vision and Pattern Recognition · Computer Science 2017-09-07 Andrey Ignatov , Nikolay Kobyshev , Radu Timofte , Kenneth Vanhoey , Luc Van Gool

Unpaired smartphone ISP is a challenging problem due to the lack of scene and color alignment between RAW and target RGB images. Many existing methods either require paired data or rely heavily on adversarial training, which can become…

Computer Vision and Pattern Recognition · Computer Science 2026-05-11 Yujin Cho , Flavien Armangeon , Yanhao Li

Recently, image enhancement and restoration have become important applications on mobile devices, such as super-resolution and image deblurring. However, most state-of-the-art networks present extremely high computational complexity. This…

Deep learning-based image denoising approaches have been extensively studied in recent years, prevailing in many public benchmark datasets. However, the stat-of-the-art networks are computationally too expensive to be directly applied on…

Image and Video Processing · Electrical Eng. & Systems 2020-10-15 Yuzhi Wang , Haibin Huang , Qin Xu , Jiaming Liu , Yiqun Liu , Jue Wang

As mobile cameras with compact optics are unable to produce a strong bokeh effect, lots of interest is now devoted to deep learning-based solutions for this task. In this Mobile AI challenge, the target was to develop an efficient…

With the rapid development of AI hardware accelerators, applying deep learning-based algorithms to solve various low-level vision tasks on mobile devices has gradually become possible. However, two main problems still need to be solved:…

Computer Vision and Pattern Recognition · Computer Science 2023-08-17 Weiran Gou , Ziyao Yi , Yan Xiang , Shaoqing Li , Zibin Liu , Dehui Kong , Ke Xu

The success of deep denoisers on real-world color photographs usually relies on the modeling of sensor noise and in-camera signal processing (ISP) pipeline. Performance drop will inevitably happen when the sensor and ISP pipeline of test…

Computer Vision and Pattern Recognition · Computer Science 2021-03-19 Yue Cao , Xiaohe Wu , Shuran Qi , Xiao Liu , Zhongqin Wu , Wangmeng Zuo

The next generation of mobile networks is set to become increasingly complex, as these struggle to accommodate tremendous data traffic demands generated by ever-more connected devices that have diverse performance requirements in terms of…

Networking and Internet Architecture · Computer Science 2020-11-11 Chaoyun Zhang

Conventional image signal processing (ISP) frameworks are designed to reconstruct an RGB image from a single raw measurement. As multi-camera systems become increasingly popular these days, it is worth exploring improvements in ISP…

Image and Video Processing · Electrical Eng. & Systems 2022-11-16 Ahmad Bin Rabiah , Qi Guo

Deep learning solutions are being increasingly used in mobile applications. Although there are many open-source software tools for the development of deep learning solutions, there are no guidelines in one place in a unified manner for…

Machine Learning · Computer Science 2019-01-09 Abhishek Sehgal , Nasser Kehtarnavaz

Recent advances in camera designs and imaging pipelines allow us to capture high-quality images using smartphones. However, due to the small size and lens limitations of the smartphone cameras, we commonly find artifacts or degradation in…

Computer Vision and Pattern Recognition · Computer Science 2023-11-27 Marcos V. Conde , Florin Vasluianu , Javier Vazquez-Corral , Radu Timofte

In the present paper, we propose a source camera identification method for mobile devices based on deep learning. Recently, convolutional neural networks (CNNs) have shown a remarkable performance on several tasks such as image recognition,…

Computer Vision and Pattern Recognition · Computer Science 2018-01-25 David Freire-Obregón , Fabio Narducci , Silvio Barra , Modesto Castrillón-Santana

Deep learning-based image signal processor (ISP) models for mobile cameras can generate high-quality images that rival those of professional DSLR cameras. However, their computational demands often make them unsuitable for mobile settings.…

Image and Video Processing · Electrical Eng. & Systems 2023-05-08 Minhyeok Cho , Haechang Lee , Hyunwoo Je , Kijeong Kim , Dongil Ryu , Albert No

Under-display cameras have been proposed in recent years as a way to reduce the form factor of mobile devices while maximizing the screen area. Unfortunately, placing the camera behind the screen results in significant image distortions,…

Image and Video Processing · Electrical Eng. & Systems 2021-11-03 Miao Qi , Yuqi Li , Wolfgang Heidrich

Image Super-Resolution (ISR), which aims at recovering High-Resolution (HR) images from the corresponding Low-Resolution (LR) counterparts. Although recent progress in ISR has been remarkable. However, they are way too computationally…

Computer Vision and Pattern Recognition · Computer Science 2022-06-07 Jie Cai , Zibo Meng , Jiaming Ding , Chiu Man Ho

This article proposes and documents a machine-learning framework and tutorial for classifying images using mobile phones. Compared to computers, the performance of deep learning model performance degrades when deployed on a mobile phone and…

Image and Video Processing · Electrical Eng. & Systems 2022-06-02 Muhammad Muneeb , Samuel F. Feng , Andreas Henschel

Cameras capture sensor RAW images and transform them into pleasant RGB images, suitable for the human eyes, using their integrated Image Signal Processor (ISP). Numerous low-level vision tasks operate in the RAW domain (e.g. image…

Physical photographs now can be conveniently scanned by smartphones and stored forever as a digital version, yet the scanned photos are not restored well. One solution is to train a supervised deep neural network on many digital photos and…

Computer Vision and Pattern Recognition · Computer Science 2021-08-19 Man M. Ho , Jinjia Zhou

Image Signal Processor (ISP) comprises of various blocks to reconstruct image sensor raw data to final image consumed by human visual system or computer vision applications. Each block typically has many tuning parameters due to the…

Computer Vision and Pattern Recognition · Computer Science 2019-02-26 Jun Nishimura , Timo Gerasimow , Sushma Rao , Aleksandar Sutic , Chyuan-Tyng Wu , Gilad Michael