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The query mechanism introduced in the DETR method is changing the paradigm of object detection and recently there are many query-based methods have obtained strong object detection performance. However, the current query-based detection…

计算机视觉与模式识别 · 计算机科学 2022-06-22 Wenqiang Zhang , Tianheng Cheng , Xinggang Wang , Shaoyu Chen , Qian Zhang , Wenyu Liu

In this work, we focus on a lightweight convolutional architecture that creates fixed-size vector embeddings of sentences. Such representations are useful for building NLP systems, including conversational agents. Our work derives from a…

计算与语言 · 计算机科学 2018-08-06 Szymon Malik , Adrian Lancucki , Jan Chorowski

We develop a novel deep contour detection algorithm with a top-down fully convolutional encoder-decoder network. Our proposed method, named TD-CEDN, solves two important issues in this low-level vision problem: (1) learning multi-scale and…

计算机视觉与模式识别 · 计算机科学 2017-07-13 Yahui Liu , Jian Yao , Li Li , Xiaohu Lu , Jing Han

Segmentation-based methods have achieved great success for arbitrary shape text detection. However, separating neighboring text instances is still one of the most challenging problems due to the complexity of texts in scene images. In this…

计算机视觉与模式识别 · 计算机科学 2023-06-21 Shi-Xue Zhang , Xiaobin Zhu , Jie-Bo Hou , Chun Yang , Xu-Cheng Yin

In this paper, we first provide a new perspective to divide existing high performance object detection methods into direct and indirect regressions. Direct regression performs boundary regression by predicting the offsets from a given…

计算机视觉与模式识别 · 计算机科学 2017-03-27 Wenhao He , Xu-Yao Zhang , Fei Yin , Cheng-Lin Liu

State-of-the-art scene text detection techniques predict quadrilateral boxes that are prone to localization errors while dealing with straight or curved text lines of different orientations and lengths in scenes. This paper presents a novel…

计算机视觉与模式识别 · 计算机科学 2019-07-10 Chuhui Xue , Shijian Lu , Wei Zhang

In this paper, we propose a novel 3D graph convolution based pipeline for category-level 6D pose and size estimation from monocular RGB-D images. The proposed method leverages an efficient 3D data augmentation and a novel vector-based…

计算机视觉与模式识别 · 计算机科学 2023-01-31 Wei Chen , Xi Jia , Zhongqun Zhang , Hyung Jin Chang , Linlin Shen , Jinming Duan , Ales Leonardis

We introduce Repetition-Reduction network (RRNet) for resource-constrained depth estimation, offering significantly improved efficiency in terms of computation, memory and energy consumption. The proposed method is based on…

计算机视觉与模式识别 · 计算机科学 2019-08-01 Sangyun Oh , Hye-Jin S. Kim , Jongeun Lee , Junmo Kim

Many approaches have recently been proposed to detect irregular scene text and achieved promising results. However, their localization results may not well satisfy the following text recognition part mainly because of two reasons: 1)…

计算机视觉与模式识别 · 计算机科学 2021-10-26 Liang Qiao , Sanli Tang , Zhanzhan Cheng , Yunlu Xu , Yi Niu , Shiliang Pu , Fei Wu

We present Sparse R-CNN, a purely sparse method for object detection in images. Existing works on object detection heavily rely on dense object candidates, such as $k$ anchor boxes pre-defined on all grids of image feature map of size…

计算机视觉与模式识别 · 计算机科学 2021-04-27 Peize Sun , Rufeng Zhang , Yi Jiang , Tao Kong , Chenfeng Xu , Wei Zhan , Masayoshi Tomizuka , Lei Li , Zehuan Yuan , Changhu Wang , Ping Luo

Offline handwriting recognition with deep neural networks is usually limited to words or lines due to large computational costs. In this paper, a less computationally expensive full page offline handwritten text recognition framework is…

计算机视觉与模式识别 · 计算机科学 2020-05-12 Jonathan Chung , Thomas Delteil

Detecting irregular-shaped text instances is the main challenge for text detection. Existing approaches can be roughly divided into top-down and bottom-up perspective methods. The former encodes text contours into unified units, which…

计算机视觉与模式识别 · 计算机科学 2021-10-05 Chuang Yang , Mulin Chen , Yuan Yuan , Qi Wang

In order to obtain the information about flow field, traditional computational fluid dynamics methods need to solve the Navier-Stokes equations on the mesh with boundary conditions, which is a time-consuming task. In this work, a…

流体动力学 · 物理学 2022-07-05 Kuijun Zuo , Shuhui Bu , Weiwei Zhang , Jiawei Hu , Zhengyin Ye , Xianxu Yuan

Estimating the 6D pose of objects using only RGB images remains challenging because of problems such as occlusion and symmetries. It is also difficult to construct 3D models with precise texture without expert knowledge or specialized…

计算机视觉与模式识别 · 计算机科学 2020-03-24 Kiru Park , Timothy Patten , Markus Vincze

Scene text detection has witnessed rapid progress especially with the recent development of convolutional neural networks. However, there still exists two challenges which prevent the algorithm into industry applications. On the one hand,…

计算机视觉与模式识别 · 计算机科学 2019-07-30 Wenhai Wang , Enze Xie , Xiang Li , Wenbo Hou , Tong Lu , Gang Yu , Shuai Shao

The corner-based detection paradigm enjoys the potential to produce high-quality boxes. But the development is constrained by three factors: 1) Hard to match corners. Heuristic corner matching algorithms can lead to incorrect boxes,…

计算机视觉与模式识别 · 计算机科学 2024-11-26 Chenglong Liu , Jintao Liu , Haorao Wei , Jinze Yang , Liangyu Xu , Yuchen Guo , Lu Fang

Pre-trained Transformer language models (LM) have become go-to text representation encoders. Prior research fine-tunes deep LMs to encode text sequences such as sentences and passages into single dense vector representations for efficient…

计算与语言 · 计算机科学 2021-09-22 Luyu Gao , Jamie Callan

Recently, regression-based methods, which predict parameterized text shapes for text localization, have gained popularity in scene text detection. However, the existing parameterized text shape methods still have limitations in modeling…

计算机视觉与模式识别 · 计算机科学 2024-01-25 Yuchen Su , Zhineng Chen , Zhiwen Shao , Yuning Du , Zhilong Ji , Jinfeng Bai , Yong Zhou , Yu-Gang Jiang

Dense optical flow estimation is challenging when there are large displacements in a scene with heterogeneous motion dynamics, occlusion, and scene homogeneity. Traditional approaches to handle these challenges include hierarchical and…

计算机视觉与模式识别 · 计算机科学 2023-11-02 Ali Salehi , Madhusudhanan Balasubramanian

Estimating accurate depth from a single image is challenging because it is an ill-posed problem as infinitely many 3D scenes can be projected to the same 2D scene. However, recent works based on deep convolutional neural networks show great…

计算机视觉与模式识别 · 计算机科学 2021-09-24 Jin Han Lee , Myung-Kyu Han , Dong Wook Ko , Il Hong Suh