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Despite recent breakthroughs in deep learning methods for image lighting enhancement, they are inferior when applied to portraits because 3D facial information is ignored in their models. To address this, we present a novel deep learning…

Computer Vision and Pattern Recognition · Computer Science 2021-08-05 Fangzhou Han , Can Wang , Hao Du , Jing Liao

Image retouching not only enhances visual quality but also serves as a means of expressing personal preferences and emotions. However, existing learning-based approaches require large-scale paired data and operate as black boxes, making the…

Computer Vision and Pattern Recognition · Computer Science 2025-10-13 Moon Ye-Bin , Roy Miles , Tae-Hyun Oh , Ismail Elezi , Jiankang Deng

Image-adaptive lookup tables (LUTs) have achieved great success in real-time image enhancement tasks due to their high efficiency for modeling color transforms. However, they embed the complete transform, including the color…

Computer Vision and Pattern Recognition · Computer Science 2022-07-19 Canqian Yang , Meiguang Jin , Yi Xu , Rui Zhang , Ying Chen , Huaida Liu

Nowadays, pre-training big models on large-scale datasets has become a crucial topic in deep learning. The pre-trained models with high representation ability and transferability achieve a great success and dominate many downstream tasks in…

Computer Vision and Pattern Recognition · Computer Science 2022-10-13 Ziyi Wang , Xumin Yu , Yongming Rao , Jie Zhou , Jiwen Lu

Photo retouching enables photographers to invoke dramatic visual impressions by artistically enhancing their photos through stylistic color and tone adjustments. However, it is also a time-consuming and challenging task that requires…

Computer Vision and Pattern Recognition · Computer Science 2018-07-18 Zhicheng Yan , Hao Zhang , Baoyuan Wang , Sylvain Paris , Yizhou Yu

Semi-dense feature matching methods have been significantly advanced by leveraging attention mechanisms to extract discriminative descriptors. However, most existing approaches treat all pixels equally during attention computations, which…

Computer Vision and Pattern Recognition · Computer Science 2026-02-24 Dongyue Li

Pose-guided person image generation is to transform a source person image to a target pose. This task requires spatial manipulations of source data. However, Convolutional Neural Networks are limited by the lack of ability to spatially…

Computer Vision and Pattern Recognition · Computer Science 2020-03-19 Yurui Ren , Xiaoming Yu , Junming Chen , Thomas H. Li , Ge Li

The variation of pose, illumination and expression makes face recognition still a challenging problem. As a pre-processing in holistic approaches, faces are usually aligned by eyes. The proposed method tries to perform a pixel alignment…

Computer Vision and Pattern Recognition · Computer Science 2018-08-01 Hoda Mohammadzade , Amirhossein Sayyafan , Benyamin Ghojogh

Pose regression networks predict the camera pose of a query image relative to a known environment. Within this family of methods, absolute pose regression (APR) has recently shown promising accuracy in the range of a few centimeters in…

Computer Vision and Pattern Recognition · Computer Science 2024-04-16 Shuai Chen , Tommaso Cavallari , Victor Adrian Prisacariu , Eric Brachmann

We consider the problem of composed image retrieval that takes an input query consisting of an image and a modification text indicating the desired changes to be made on the image and retrieves images that match these changes. Current…

Computer Vision and Pattern Recognition · Computer Science 2023-09-01 Prateksha Udhayanan , Srikrishna Karanam , Balaji Vasan Srinivasan

Curve & Lookup Table (LUT) based methods directly map a pixel to the target output, making them highly efficient tools for real-time photography processing. However, due to extreme memory complexity to learn full RGB space mapping, existing…

Computer Vision and Pattern Recognition · Computer Science 2025-01-14 Ziteng Cui , Lin Gu , Tatsuya Harada

Portrait pictures, which typically feature both human subjects and natural backgrounds, are one of the most prevalent forms of photography on social media. Existing image super-resolution (ISR) techniques generally focus either on generic…

Computer Vision and Pattern Recognition · Computer Science 2025-10-14 Renjie Li , Zihao Zhu , Xiaoyu Wang , Zhengzhong Tu

6-DoF object pose estimation from a monocular image is challenging, and a post-refinement procedure is generally needed for high-precision estimation. In this paper, we propose a framework based on a recurrent neural network (RNN) for…

Computer Vision and Pattern Recognition · Computer Science 2022-04-12 Yan Xu , Kwan-Yee Lin , Guofeng Zhang , Xiaogang Wang , Hongsheng Li

Heatmap regression with a deep network has become one of the mainstream approaches to localize facial landmarks. However, the loss function for heatmap regression is rarely studied. In this paper, we analyze the ideal loss function…

Computer Vision and Pattern Recognition · Computer Science 2020-05-20 Xinyao Wang , Liefeng Bo , Li Fuxin

We propose a novel locally adaptive learning estimator for enhancing the inter- and intra- discriminative capabilities of Deep Neural Networks, which can be used as improved loss layer for semantic image segmentation tasks. Most loss layers…

Computer Vision and Pattern Recognition · Computer Science 2018-04-17 Jinjiang Guo , Pengyuan Ren , Aiguo Gu , Jian Xu , Weixin Wu

A common problem for composite images is the incompatibility of their foreground and background components. Image harmonization aims to solve this problem, making the whole image look more authentic and coherent. Most existing solutions…

Computer Vision and Pattern Recognition · Computer Science 2024-10-01 Karen Efremyan , Elizaveta Petrova , Evgeny Kaskov , Alexander Kapitanov

In contrast to comparing faces via single exemplars, matching sets of face images increases robustness and discrimination performance. Recent image set matching approaches typically measure similarities between subspaces or manifolds, while…

Computer Vision and Pattern Recognition · Computer Science 2013-03-13 Conrad Sanderson , Mehrtash T. Harandi , Yongkang Wong , Brian C. Lovell

The encoding of the target in object tracking moves from the coarse bounding-box to fine-grained segmentation map recently. Revisiting de facto real-time approaches that are capable of predicting mask during tracking, we observed that they…

Computer Vision and Pattern Recognition · Computer Science 2021-11-03 Zhipeng Zhang , Bing Li , Weiming Hu , Houwen Peng

Image retrieval aims to identify visually similar images within a database using a given query image. Traditional methods typically employ both global and local features extracted from images for matching, and may also apply re-ranking…

Computer Vision and Pattern Recognition · Computer Science 2024-05-29 Sihe Zhang , Qingdong He , Jinlong Peng , Yuxi Li , Zhengkai Jiang , Jiafu Wu , Mingmin Chi , Yabiao Wang , Chengjie Wang

Aiming at developing intuitive and easy-to-use portrait editing tools, we propose a novel vectorization method that can automatically convert raster images into a 3-tier hierarchical representation. The base layer consists of a set of…

Computer Vision and Pattern Recognition · Computer Science 2026-05-07 Qian Fu , Linlin Liu , Fei Hou , Ying He