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In this article we describe a new convolutional neural network (CNN) to classify 3D point clouds of urban or indoor scenes. Solutions are given to the problems encountered working on scene point clouds, and a network is described that…

Computer Vision and Pattern Recognition · Computer Science 2018-04-11 Xavier Roynard , Jean-Emmanuel Deschaud , François Goulette

PlantVillageVQA is a large-scale visual question answering (VQA) dataset derived from the widely used PlantVillage image corpus. It was designed to advance the development and evaluation of vision-language models for agricultural…

Computer Vision and Pattern Recognition · Computer Science 2025-09-01 Syed Nazmus Sakib , Nafiul Haque , Mohammad Zabed Hossain , Shifat E. Arman

In this paper, we present a novel approach for the task of eXplainable Question Answering (XQA), i.e., generating natural language (NL) explanations for the Visual Question Answering (VQA) problem. We generate NL explanations comprising of…

Computation and Language · Computer Science 2019-02-18 Shalini Ghosh , Giedrius Burachas , Arijit Ray , Avi Ziskind

3D vehicle detection based on point cloud is a challenging task in real-world applications such as autonomous driving. Despite significant progress has been made, we observe two aspects to be further improved. First, the semantic context…

Computer Vision and Pattern Recognition · Computer Science 2020-02-14 Hongwei Yi , Shaoshuai Shi , Mingyu Ding , Jiankai Sun , Kui Xu , Hui Zhou , Zhe Wang , Sheng Li , Guoping Wang

In this paper, we propose a new dataset, ReasonVQA, for the Visual Question Answering (VQA) task. Our dataset is automatically integrated with structured encyclopedic knowledge and constructed using a low-cost framework, which is capable of…

Computer Vision and Pattern Recognition · Computer Science 2026-02-03 Duong T. Tran , Trung-Kien Tran , Manfred Hauswirth , Danh Le Phuoc

Recent studies on machine reading comprehension have focused on text-level understanding but have not yet reached the level of human understanding of the visual layout and content of real-world documents. In this study, we introduce a new…

Computation and Language · Computer Science 2021-05-11 Ryota Tanaka , Kyosuke Nishida , Sen Yoshida

Visual Question Answering (VQA) has emerged as one of the most challenging tasks in artificial intelligence due to its multi-modal nature. However, most existing VQA methods are incapable of handling Knowledge-based Visual Question…

Computer Vision and Pattern Recognition · Computer Science 2023-12-21 Chengxiang Yin , Zhengping Che , Kun Wu , Zhiyuan Xu , Jian Tang

The task of 3D semantic scene graph (3DSSG) prediction in the point cloud is challenging since (1) the 3D point cloud only captures geometric structures with limited semantics compared to 2D images, and (2) long-tailed relation distribution…

Computer Vision and Pattern Recognition · Computer Science 2023-03-28 Ziqin Wang , Bowen Cheng , Lichen Zhao , Dong Xu , Yang Tang , Lu Sheng

Existing efforts in text-based video question answering (TextVideoQA) are criticized for their opaque decisionmaking and heavy reliance on scene-text recognition. In this paper, we propose to study Grounded TextVideoQA by forcing models to…

Computer Vision and Pattern Recognition · Computer Science 2025-05-20 Sheng Zhou , Junbin Xiao , Xun Yang , Peipei Song , Dan Guo , Angela Yao , Meng Wang , Tat-Seng Chua

Unsupervised representation learning techniques, such as learning word embeddings, have had a significant impact on the field of natural language processing. Similar representation learning techniques have not yet become commonplace in the…

Computer Vision and Pattern Recognition · Computer Science 2021-02-09 Joël Bachmann , Kenneth Blomqvist , Julian Förster , Roland Siegwart

In recent years, point cloud representation has become one of the research hotspots in the field of computer vision, and has been widely used in many fields, such as autonomous driving, virtual reality, robotics, etc. Although deep learning…

Computer Vision and Pattern Recognition · Computer Science 2023-11-07 Huang Zhang , Changshuo Wang , Shengwei Tian , Baoli Lu , Liping Zhang , Xin Ning , Xiao Bai

Video-Question-Answering (VideoQA) comprises the capturing of complex visual relation changes over time, remaining a challenge even for advanced Video Language Models (VLM), i.a., because of the need to represent the visual content to a…

Computer Vision and Pattern Recognition · Computer Science 2025-04-09 Sofian Chaybouti , Walid Bousselham , Moritz Wolter , Hilde Kuehne

Visual Question Answering (VQA) in its ideal form lets us study reasoning in the joint space of vision and language and serves as a proxy for the AI task of scene understanding. However, most VQA benchmarks to date are focused on questions…

Computer Vision and Pattern Recognition · Computer Science 2019-09-05 Kenneth Marino , Mohammad Rastegari , Ali Farhadi , Roozbeh Mottaghi

Visually-situated languages such as charts and plots are omnipresent in real-world documents. These graphical depictions are human-readable and are often analyzed in visually-rich documents to address a variety of questions that necessitate…

Artificial Intelligence · Computer Science 2023-10-31 Anran Wu , Luwei Xiao , Xingjiao Wu , Shuwen Yang , Junjie Xu , Zisong Zhuang , Nian Xie , Cheng Jin , Liang He

The goal of open-vocabulary detection is to identify novel objects based on arbitrary textual descriptions. In this paper, we address open-vocabulary 3D point-cloud detection by a dividing-and-conquering strategy, which involves: 1)…

Computer Vision and Pattern Recognition · Computer Science 2023-05-18 Yuheng Lu , Chenfeng Xu , Xiaobao Wei , Xiaodong Xie , Masayoshi Tomizuka , Kurt Keutzer , Shanghang Zhang

Vision-Language Models (VLMs) have been increasingly applied in real-world scenarios due to their outstanding understanding and reasoning capabilities. Although VLMs have already demonstrated impressive capabilities in common visual…

Computer Vision and Pattern Recognition · Computer Science 2026-02-25 Yuechen Xie , Xiaoyan Zhang , Yicheng Shan , Hao Zhu , Rui Tang , Rong Wei , Mingli Song , Yuanyu Wan , Jie Song

Current visual question answering datasets do not consider the rich semantic information conveyed by text within an image. In this work, we present a new dataset, ST-VQA, that aims to highlight the importance of exploiting high-level…

Computer Vision and Pattern Recognition · Computer Science 2019-10-17 Ali Furkan Biten , Ruben Tito , Andres Mafla , Lluis Gomez , Marçal Rusiñol , Ernest Valveny , C. V. Jawahar , Dimosthenis Karatzas

Document Question Answering (QA) presents a challenge in understanding visually-rich documents (VRD), particularly those dominated by lengthy textual content like research journal articles. Existing studies primarily focus on real-world…

Computer Vision and Pattern Recognition · Computer Science 2024-04-22 Yihao Ding , Kaixuan Ren , Jiabin Huang , Siwen Luo , Soyeon Caren Han

The intersection of vision and language is of major interest due to the increased focus on seamless integration between recognition and reasoning. Scene graphs (SGs) have emerged as a useful tool for multimodal image analysis, showing…

Computer Vision and Pattern Recognition · Computer Science 2023-10-04 Bruno Souza , Marius Aasan , Helio Pedrini , Adín Ramírez Rivera

Visual Question Answering (VQA) is a challenging task of natural language processing (NLP) and computer vision (CV), attracting significant attention from researchers. English is a resource-rich language that has witnessed various…

Computation and Language · Computer Science 2024-04-18 Ngan Luu-Thuy Nguyen , Nghia Hieu Nguyen , Duong T. D Vo , Khanh Quoc Tran , Kiet Van Nguyen