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Generative text-to-image models, such as Stable Diffusion, have demonstrated a remarkable ability to generate diverse, high-quality images. However, they are surprisingly inept when it comes to rendering human hands, which are often…

Computer Vision and Pattern Recognition · Computer Science 2025-06-03 Zhenyue Qin , Yiqun Zhang , Yang Liu , Dylan Campbell

We present a method that takes as input a single dual-pixel image, and simultaneously estimates the image's defocus map -- the amount of defocus blur at each pixel -- and recovers an all-in-focus image. Our method is inspired from recent…

Computer Vision and Pattern Recognition · Computer Science 2021-10-13 Shumian Xin , Neal Wadhwa , Tianfan Xue , Jonathan T. Barron , Pratul P. Srinivasan , Jiawen Chen , Ioannis Gkioulekas , Rahul Garg

Effectively extracting motions from video is a critical and long-standing problem for action recognition. This problem is very challenging because motions (i) do not have an explicit form, (ii) have various concepts such as displacement,…

Computer Vision and Pattern Recognition · Computer Science 2024-05-13 Lei Wang , Xiuyuan Yuan , Tom Gedeon , Liang Zheng

Hand motion capture has been an active research topic in recent years, following the success of full-body pose tracking. Despite similarities, hand tracking proves to be more challenging, characterized by a higher dimensionality, severe…

Computer Vision and Pattern Recognition · Computer Science 2017-04-04 Dimitrios Tzionas , Abhilash Srikantha , Pablo Aponte , Juergen Gall

The malformed hands in the AI-generated images seriously affect the authenticity of the images. To refine malformed hands, existing depth-based approaches use a hand depth estimator to guide the refinement of malformed hands. Due to the…

Computer Vision and Pattern Recognition · Computer Science 2025-06-18 Chen-Bin Feng , Kangdao Liu , Jian Sun , Jiping Jin , Yiguo Jiang , Chi-Man Vong

Numerous recent approaches attempt to remove image blur due to camera shake, either with one or multiple input images, by explicitly solving an inverse and inherently ill-posed deconvolution problem. If the photographer takes a burst of…

Computer Vision and Pattern Recognition · Computer Science 2015-12-08 Mauricio Delbracio , Guillermo Sapiro

Analyzing and understanding hand information from multimedia materials like images or videos is important for many real world applications and remains active in research community. There are various works focusing on recovering hand…

Computer Vision and Pattern Recognition · Computer Science 2021-07-29 Xiong Zhang , Hongsheng Huang , Jianchao Tan , Hongmin Xu , Cheng Yang , Guozhu Peng , Lei Wang , Ji Liu

In this study, we present an model-based approach to recognize full 26 degrees of freedom of a human hand. Input data include RGB-D images acquired from a Kinect camera and a 3D model of the hand constructed from its anatomy and graphical…

Computer Vision and Pattern Recognition · Computer Science 2020-05-15 Cong Hoang Quach , Minh Trien Pham , Anh Viet Dang , Dinh Tuan Pham , Thuan Hoang Tran , Manh Duong Phung

Removing perspective distortion from hand held camera captured document images is one of the primitive tasks in document analysis, but unfortunately, no such method exists that can reliably remove the perspective distortion from document…

Computer Vision and Pattern Recognition · Computer Science 2017-09-13 Syed Ammar Abbas , Sibt ul Hussain

Multi-person total motion capture is extremely challenging when it comes to handle severe occlusions, different reconstruction granularities from body to face and hands, drastically changing observation scales and fast body movements. To…

Computer Vision and Pattern Recognition · Computer Science 2021-08-25 Yuxiang Zhang , Zhe Li , Liang An , Mengcheng Li , Tao Yu , Yebin Liu

Looking at a person's hands one often can tell what the person is going to do next, how his/her hands are moving and where they will be, because an actor's intentions shape his/her movement kinematics during action execution. Similarly,…

Computer Vision and Pattern Recognition · Computer Science 2016-10-05 Cornelia Fermüller , Fang Wang , Yezhou Yang , Konstantinos Zampogiannis , Yi Zhang , Francisco Barranco , Michael Pfeiffer

Model-based approaches to 3D hand tracking have been shown to perform well in a wide range of scenarios. However, they require initialisation and cannot recover easily from tracking failures that occur due to fast hand motions. Data-driven…

Computer Vision and Pattern Recognition · Computer Science 2015-10-28 Georg Poier , Konstantinos Roditakis , Samuel Schulter , Damien Michel , Horst Bischof , Antonis A. Argyros

Reconstructing hand-held objects from monocular RGB images is an appealing yet challenging task. In this task, contacts between hands and objects provide important cues for recovering the 3D geometry of the hand-held objects. Though recent…

Computer Vision and Pattern Recognition · Computer Science 2024-01-17 Junxing Hu , Hongwen Zhang , Zerui Chen , Mengcheng Li , Yunlong Wang , Yebin Liu , Zhenan Sun

Many application areas ranging from serious games for health to learning by demonstration in robotics, could benefit from large body movement datasets extracted from textual instructions accompanied by images. The interpretation of…

Human-Computer Interaction · Computer Science 2020-06-09 Himangshu Sarma , Robert Porzel , Jan Smeddinck , Rainer Malaka

Existing color sampling based alpha matting methods use the compositing equation to estimate alpha at a pixel from pairs of foreground (F) and background (B) samples. The quality of the matte depends on the selected (F,B) pairs. In this…

Computer Vision and Pattern Recognition · Computer Science 2016-04-26 Jubin Johnson , Ehsan Shahrian Varnousfaderani , Hisham Cholakkal , Deepu Rajan

Image matting is a longstanding problem in computational photography. Although, it has been studied for more than two decades, yet there is a challenge of developing an automatic matting algorithm which does not require any human efforts.…

Computer Vision and Pattern Recognition · Computer Science 2017-07-05 Vikas Gupta , Shanmuganathan Raman

We develop a rotation equivariant model for generating 3D hand meshes from 2D RGB images. This guarantees that as the input image of a hand is rotated the generated mesh undergoes a corresponding rotation. Furthermore, this removes…

Computer Vision and Pattern Recognition · Computer Science 2021-11-29 Joshua Mitton , Chaitanya Kaul , Roderick Murray-Smith

We present a method for estimating detailed scene illumination using human faces in a single image. In contrast to previous works that estimate lighting in terms of low-order basis functions or distant point lights, our technique estimates…

Computer Vision and Pattern Recognition · Computer Science 2018-07-24 Renjiao Yi , Chenyang Zhu , Ping Tan , Stephen Lin

This paper proposes a novel method for human hands tracking using data from an event camera. The event camera detects changes in brightness, measuring motion, with low latency, no motion blur, low power consumption and high dynamic range.…

Computer Vision and Pattern Recognition · Computer Science 2023-04-14 Laura Duarte , Mohammad Safeea , Pedro Neto

Fingertips detection has been used in many applications, and it is very popular and commonly used in the area of Human Computer Interaction these days. This paper presents a novel time efficient method that will lead to fingertip detection…

Computer Vision and Pattern Recognition · Computer Science 2015-03-13 Jagdish Lal Raheja , Karen Das , Ankit Chaudhary
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