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Modern 3D semantic scene graph estimation methods utilize ground truth 3D annotations to accurately predict target objects, predicates, and relationships. In the absence of given 3D ground truth representations, we explore leveraging only…

Computer Vision and Pattern Recognition · Computer Science 2025-08-12 Qi Xun Yeo , Yanyan Li , Gim Hee Lee

In this paper, we reimagine volumetric representations through the lens of quadrics. We posit that rigid scene components can be effectively decomposed into quadric surfaces. Leveraging this assumption, we reshape the volumetric…

Computer Vision and Pattern Recognition · Computer Science 2024-11-21 Chensheng Peng , Chenfeng Xu , Yue Wang , Mingyu Ding , Heng Yang , Masayoshi Tomizuka , Kurt Keutzer , Marco Pavone , Wei Zhan

We propose a novel method that reconstructs hair strands directly from colorless 3D scans by leveraging multi-modal hair orientation extraction. Hair strand reconstruction is a fundamental problem in computer vision and graphics, essential…

Computer Vision and Pattern Recognition · Computer Science 2026-05-14 Rachmadio Noval Lazuardi , Artem Sevastopolsky , Egor Zakharov , Matthias Niessner , Vanessa Sklyarova

Optical character recognition (OCR) methods have been applied to diverse tasks, e.g., street view text recognition and document analysis. Recently, zero-shot OCR has piqued the interest of the research community because it considers a…

Computer Vision and Pattern Recognition · Computer Science 2023-08-02 Xiaolei Diao , Daqian Shi , Jian Li , Lida Shi , Mingzhe Yue , Ruihua Qi , Chuntao Li , Hao Xu

In the past decade, exemplar-based texture synthesis algorithms have seen strong gains in performance by matching statistics of deep convolutional neural networks. However, these algorithms require regularization terms or user-added spatial…

Computer Vision and Pattern Recognition · Computer Science 2024-02-13 Liping Yin , Albert Chua

Scene text synthesis involves rendering specified texts onto arbitrary images. Current methods typically formulate this task in an end-to-end manner but lack effective character-level guidance during training. Besides, their text encoders,…

Computer Vision and Pattern Recognition · Computer Science 2025-03-25 Yibin Wang , Weizhong Zhang , Honghui Xu , Cheng Jin

An algorithm for image processing is proposed. The proposed algorithm, which can be viewed as a quantum-classical hybrid algorithm, can transform a low-resolution bitonal image of a character from the set of alphanumeric characters (A-Z,…

Quantum Physics · Physics 2022-12-27 Ankur Pal , Abhishek Shukla , Anirban Pathak

The character information in natural scene images contains various personal information, such as telephone numbers, home addresses, etc. It is a high risk of leakage the information if they are published. In this paper, we proposed a scene…

Computer Vision and Pattern Recognition · Computer Science 2017-05-09 Toshiki Nakamura , Anna Zhu , Keiji Yanai , Seiichi Uchida

In the film and gaming industries, achieving a realistic hair appearance typically involves the use of strands originating from the scalp. However, reconstructing these strands from observed surface images of hair presents significant…

Computer Vision and Pattern Recognition · Computer Science 2024-04-01 Yusuke Takimoto , Hikari Takehara , Hiroyuki Sato , Zihao Zhu , Bo Zheng

Speckle noise is a fundamental challenge in coherent imaging systems, significantly degrading image quality. Over the past decades, numerous despeckling algorithms have been developed for applications such as Synthetic Aperture Radar (SAR)…

Information Theory · Computer Science 2025-01-31 Ali Zafari , Shirin Jalali

We present a new Cascaded Shape Regression (CSR) architecture, namely Dynamic Attention-Controlled CSR (DAC-CSR), for robust facial landmark detection on unconstrained faces. Our DAC-CSR divides facial landmark detection into three cascaded…

Computer Vision and Pattern Recognition · Computer Science 2017-04-05 Zhen-Hua Feng , Josef Kittler , William Christmas , Patrik Huber , Xiao-Jun Wu

Scene graph generation is a structured prediction task aiming to explicitly model objects and their relationships via constructing a visually-grounded scene graph for an input image. Currently, the message passing neural network based mean…

Computer Vision and Pattern Recognition · Computer Science 2022-05-17 Daqi Liu , Miroslaw Bober , Josef Kittler

Differentiable vector graphics (VGs) are widely used in image vectorization and vector synthesis, while existing representations are costly to optimize and struggle to achieve high-quality rendering results for high-resolution images. This…

Graphics · Computer Science 2025-12-10 Xi Liu , Chaoyi Zhou , Nanxuan Zhao , Siyu Huang

In this paper, we use the blending functions of Bernstein polynomials with shifted knots for construction of Bezier curves and surfaces. We study the nature of degree elevation and degree reduction for Bezier Bernstein functions with…

Graphics · Computer Science 2015-11-23 Khalid Khan , D. K. Lobiyal , Adem Kilicman

Classification techniques for images of handwritten characters are susceptible to noise. Quadtrees can be an efficient representation for learning from sparse features. In this paper, we improve the effectiveness of probabilistic quadtrees…

Computer Vision and Pattern Recognition · Computer Science 2018-06-22 Manohar Karki , Qun Liu , Robert DiBiano , Saikat Basu , Supratik Mukhopadhyay

This paper focuses on the problem of script identification in scene text images. Facing this problem with state of the art CNN classifiers is not straightforward, as they fail to address a key characteristic of scene text instances: their…

Computer Vision and Pattern Recognition · Computer Science 2017-02-02 Lluis Gomez , Anguelos Nicolaou , Dimosthenis Karatzas

Scene Text Recognition (STR) is the problem of recognizing the correct word or character sequence in a cropped word image. To obtain more robust output sequences, the notion of bidirectional STR has been introduced. So far, bidirectional…

Computer Vision and Pattern Recognition · Computer Science 2020-03-03 Maurits Bleeker , Maarten de Rijke

Blind text image super-resolution (SR) is challenging as one needs to cope with diverse font styles and unknown degradation. To address the problem, existing methods perform character recognition in parallel to regularize the SR task,…

Computer Vision and Pattern Recognition · Computer Science 2023-03-28 Xiaoming Li , Wangmeng Zuo , Chen Change Loy

While existing methods for 3D face reconstruction from in-the-wild images excel at recovering the overall face shape, they commonly miss subtle, extreme, asymmetric, or rarely observed expressions. We improve upon these methods with SMIRK…

Computer Vision and Pattern Recognition · Computer Science 2025-03-14 George Retsinas , Panagiotis P. Filntisis , Radek Danecek , Victoria F. Abrevaya , Anastasios Roussos , Timo Bolkart , Petros Maragos

Creating the photo-realistic version of people sketched portraits is useful to various entertainment purposes. Existing studies only generate portraits in the 2D plane with fixed views, making the results less vivid. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2023-10-03 Yasheng Sun , Qianyi Wu , Hang Zhou , Kaisiyuan Wang , Tianshu Hu , Chen-Chieh Liao , Shio Miyafuji , Ziwei Liu , Hideki Koike
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