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相关论文: Random Sampling for Fast Face Sketch Synthesis

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Skeleton creation is an important phase in the character animation pipeline. However, handcrafting skeleton takes extensive labor time and domain knowledge. Automatic skeletonization provides a solution. However, most of the current…

图形学 · 计算机科学 2021-10-13 Jing Ma , Jin Wang , Jituo Li , Dongliang Zhang

Sketching, a dimensionality reduction technique, has received much attention in the statistics community. In this paper, we study sketching in the context of Newton's method for solving finite-sum optimization problems in which the number…

最优化与控制 · 数学 2019-06-03 Albert S. Berahas , Raghu Bollapragada , Jorge Nocedal

Feature correspondence selection is pivotal to many feature-matching based tasks in computer vision. Searching for spatially k-nearest neighbors is a common strategy for extracting local information in many previous works. However, there is…

计算机视觉与模式识别 · 计算机科学 2019-04-02 Chen Zhao , Zhiguo Cao , Chi Li , Xin Li , Jiaqi Yang

Approximate k-Nearest Neighbour (ANN) methods are often used for mining information and aiding machine learning on large scale high-dimensional datasets. ANN methods typically differ in the index structure used for accelerating searches,…

机器学习 · 计算机科学 2025-02-04 Ben Harwood , Amir Dezfouli , Iadine Chades , Conrad Sanderson

Person search has recently been a challenging task in the computer vision domain, which aims to search specific pedestrians from real cameras.Nevertheless, most surveillance videos comprise only a handful of images of each pedestrian, which…

计算机视觉与模式识别 · 计算机科学 2023-08-09 Huibing Wang , Tianxiang Cui , Mingze Yao , Huijuan Pang , Yushan Du

We address the problem of transferring the style of a headshot photo to face images. Existing methods using a single exemplar lead to inaccurate results when the exemplar does not contain sufficient stylized facial components for a given…

计算机视觉与模式识别 · 计算机科学 2017-08-29 Yibing Song , Linchao Bao , Shengfeng He , Qingxiong Yang , Ming-Hsuan Yang

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…

计算机视觉与模式识别 · 计算机科学 2013-03-13 Conrad Sanderson , Mehrtash T. Harandi , Yongkang Wong , Brian C. Lovell

Supervised object detection has been proven to be successful in many benchmark datasets achieving human-level performances. However, acquiring a large amount of labeled image samples for supervised detection training is tedious,…

计算机视觉与模式识别 · 计算机科学 2021-05-12 Bishwo Adhikari , Esa Rahtu , Heikki Huttunen

We propose a simple and efficient method for exploiting synthetic images when training a Deep Network to predict a 3D pose from an image. The ability of using synthetic images for training a Deep Network is extremely valuable as it is easy…

计算机视觉与模式识别 · 计算机科学 2018-03-28 Mahdi Rad , Markus Oberweger , Vincent Lepetit

Sampling of signals belonging to a low-dimensional subspace has well-documented merits for dimensionality reduction, limited memory storage, and online processing of streaming network data. When the subspace is known, these signals can be…

信息论 · 计算机科学 2019-11-26 Fernando Gama , Antonio G. Marques , Gonzalo Mateos , Alejandro Ribeiro

This technical note compares two coding (quantization) schemes for random projections in the context of sub-linear time approximate near neighbor search. The first scheme is based on uniform quantization while the second scheme utilizes a…

机器学习 · 计算机科学 2014-04-01 Ping Li , Michael Mitzenmacher , Anshumali Shrivastava

Exemplar-based sketch-to-photo synthesis allows users to generate photo-realistic images based on sketches. Recently, diffusion-based methods have achieved impressive performance on image generation tasks, enabling highly-flexible control…

计算机视觉与模式识别 · 计算机科学 2024-01-04 Ximing Xing , Chuang Wang , Haitao Zhou , Zhihao Hu , Chongxuan Li , Dong Xu , Qian Yu

Modeling 3D avatars benefits various application scenarios such as AR/VR, gaming, and filming. Character faces contribute significant diversity and vividity as a vital component of avatars. However, building 3D character face models usually…

计算机视觉与模式识别 · 计算机科学 2023-07-06 Zhongjin Luo , Dong Du , Heming Zhu , Yizhou Yu , Hongbo Fu , Xiaoguang Han

The immense amount of daily generated and communicated data presents unique challenges in their processing. Clustering, the grouping of data without the presence of ground-truth labels, is an important tool for drawing inferences from data.…

机器学习 · 统计学 2018-02-08 Panagiotis A. Traganitis , Georgios B. Giannakis

Although tremendous strides have been made in uncontrolled face detection, efficient face detection with a low computation cost as well as high precision remains an open challenge. In this paper, we point out that training data sampling and…

计算机视觉与模式识别 · 计算机科学 2021-05-12 Jia Guo , Jiankang Deng , Alexandros Lattas , Stefanos Zafeiriou

Existing state-of-the-art novel view synthesis methods rely on either fairly accurate 3D geometry estimation or sampling of the entire space for neural volumetric rendering, which limit the overall efficiency. In order to improve the…

计算机视觉与模式识别 · 计算机科学 2022-04-08 Yuemei Zhou , Tao Yu , Zerong Zheng , Ying Fu , Yebin Liu

The authors compared oversampling methods for the problem of multi-class topic classification. The SMOTE algorithm underlies one of the most popular oversampling methods. It consists in choosing two examples of a minority class and…

计算与语言 · 计算机科学 2020-08-12 Anna Glazkova

Graphic sketch representations are effective for representing sketches. Existing methods take the patches cropped from sketches as the graph nodes, and construct the edges based on sketch's drawing order or Euclidean distances on the…

计算机视觉与模式识别 · 计算机科学 2022-12-01 Sicong Zang , Shikui Tu , Lei Xu

Sketch-based face recognition is an interesting task in vision and multimedia research, yet it is quite challenging due to the great difference between face photos and sketches. In this paper, we propose a novel approach for photo-sketch…

计算机视觉与模式识别 · 计算机科学 2015-04-14 Liliang Zhang , Liang Lin , Xian Wu , Shengyong Ding , Lei Zhang

We propose a neural rendering-based system that creates head avatars from a single photograph. Our approach models a person's appearance by decomposing it into two layers. The first layer is a pose-dependent coarse image that is synthesized…

计算机视觉与模式识别 · 计算机科学 2020-08-25 Egor Zakharov , Aleksei Ivakhnenko , Aliaksandra Shysheya , Victor Lempitsky