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This paper addresses the task of generating fluent descriptions by training on a non-uniform combination of data sources, containing both human-annotated and web-collected captions. Large-scale datasets with noisy image-text pairs, indeed,…

Computer Vision and Pattern Recognition · Computer Science 2023-12-01 Marcella Cornia , Lorenzo Baraldi , Giuseppe Fiameni , Rita Cucchiara

We investigate the problem of learning to generate 3D parametric surface representations for novel object instances, as seen from one or more views. Previous work on learning shape reconstruction from multiple views uses discrete…

Computer Vision and Pattern Recognition · Computer Science 2020-08-19 Jiahui Lei , Srinath Sridhar , Paul Guerrero , Minhyuk Sung , Niloy Mitra , Leonidas J. Guibas

We present a method for generating colored 3D shapes from natural language. To this end, we first learn joint embeddings of freeform text descriptions and colored 3D shapes. Our model combines and extends learning by association and metric…

Computer Vision and Pattern Recognition · Computer Science 2018-03-23 Kevin Chen , Christopher B. Choy , Manolis Savva , Angel X. Chang , Thomas Funkhouser , Silvio Savarese

This paper considers a video caption generating network referred to as Semantic Grouping Network (SGN) that attempts (1) to group video frames with discriminating word phrases of partially decoded caption and then (2) to decode those…

Computer Vision and Pattern Recognition · Computer Science 2021-02-04 Hobin Ryu , Sunghun Kang , Haeyong Kang , Chang D. Yoo

Video captioning aims to generate natural language descriptions according to the content, where representation learning plays a crucial role. Existing methods are mainly developed within the supervised learning framework via word-by-word…

Computer Vision and Pattern Recognition · Computer Science 2022-03-11 Hanhua Ye , Guorong Li , Yuankai Qi , Shuhui Wang , Qingming Huang , Ming-Hsuan Yang

To generate proper captions for videos, the inference needs to identify relevant concepts and pay attention to the spatial relationships between them as well as to the temporal development in the clip. Our end-to-end encoder-decoder video…

Computer Vision and Pattern Recognition · Computer Science 2022-08-22 Zohreh Ghaderi , Leonard Salewski , Hendrik P. A. Lensch

Neural image/video captioning models can generate accurate descriptions, but their internal process of mapping regions to words is a black box and therefore difficult to explain. Top-down neural saliency methods can find important regions…

Computer Vision and Pattern Recognition · Computer Science 2017-09-12 Vasili Ramanishka , Abir Das , Jianming Zhang , Kate Saenko

Shape completion aims to recover the full 3D geometry of an object from a partial observation. This problem is inherently multi-modal since there can be many ways to plausibly complete the missing regions of a shape. Such diversity would be…

Computer Vision and Pattern Recognition · Computer Science 2023-11-21 Wesley Khademi , Li Fuxin

Recently, video captioning has been attracting an increasing amount of interest, due to its potential for improving accessibility and information retrieval. While existing methods rely on different kinds of visual features and model…

Computer Vision and Pattern Recognition · Computer Science 2016-12-02 Xiang Long , Chuang Gan , Gerard de Melo

We introduce the task of dense captioning in 3D scans from commodity RGB-D sensors. As input, we assume a point cloud of a 3D scene; the expected output is the bounding boxes along with the descriptions for the underlying objects. To…

Computer Vision and Pattern Recognition · Computer Science 2020-12-07 Dave Zhenyu Chen , Ali Gholami , Matthias Nießner , Angel X. Chang

We address the challenging problem of image captioning by revisiting the representation of image scene graph. At the core of our method lies the decomposition of a scene graph into a set of sub-graphs, with each sub-graph capturing a…

Computer Vision and Pattern Recognition · Computer Science 2020-07-24 Yiwu Zhong , Liwei Wang , Jianshu Chen , Dong Yu , Yin Li

We introduce Cap3D, an automatic approach for generating descriptive text for 3D objects. This approach utilizes pretrained models from image captioning, image-text alignment, and LLM to consolidate captions from multiple views of a 3D…

Computer Vision and Pattern Recognition · Computer Science 2023-06-19 Tiange Luo , Chris Rockwell , Honglak Lee , Justin Johnson

In view-based 3D shape recognition, extracting discriminative visual representation of 3D shapes from projected images is considered the core problem. Projections with low discriminative ability can adversely influence the final 3D shape…

Computer Vision and Pattern Recognition · Computer Science 2018-08-22 Biao Leng , Cheng Zhang , Xiaocheng Zhou , Cheng Xu , Kai Xu

Image captioning models are becoming increasingly successful at describing the content of images in restricted domains. However, if these models are to function in the wild - for example, as assistants for people with impaired vision - a…

Computer Vision and Pattern Recognition · Computer Science 2018-11-29 Peter Anderson , Stephen Gould , Mark Johnson

Learning powerful deep generative models for 3D shape synthesis is largely hindered by the difficulty in ensuring plausibility encompassing correct topology and reasonable geometry. Indeed, learning the distribution of plausible 3D shapes…

Computer Vision and Pattern Recognition · Computer Science 2020-01-28 Jun Li , Chengjie Niu , Kai Xu

This paper presents a novel approach for automatically generating image descriptions: visual detectors, language models, and multimodal similarity models learnt directly from a dataset of image captions. We use multiple instance learning to…

Computer Vision and Pattern Recognition · Computer Science 2016-02-22 Hao Fang , Saurabh Gupta , Forrest Iandola , Rupesh Srivastava , Li Deng , Piotr Dollár , Jianfeng Gao , Xiaodong He , Margaret Mitchell , John C. Platt , C. Lawrence Zitnick , Geoffrey Zweig

While deep-learning models have been shown to perform well on image-to-text datasets, it is difficult to use them in practice for captioning images. This is because captions traditionally tend to be context-dependent and offer complementary…

Machine Learning · Computer Science 2023-06-07 Shinjini Ghosh , Sagnik Anupam

Previous models for video captioning often use the output from a specific layer of a Convolutional Neural Network (CNN) as video features. However, the variable context-dependent semantics in the video may make it more appropriate to…

Computer Vision and Pattern Recognition · Computer Science 2017-11-20 Yunchen Pu , Martin Renqiang Min , Zhe Gan , Lawrence Carin

Video Captioning (VC) is a challenging multi-modal task since it requires describing the scene in language by understanding various and complex videos. For machines, the traditional VC follows the…

Computer Vision and Pattern Recognition · Computer Science 2024-01-11 Jianqiao Sun , Yudi Su , Hao Zhang , Ziheng Cheng , Zequn Zeng , Zhengjue Wang , Bo Chen , Xin Yuan

Object recognition has seen significant progress in the image domain, with focus primarily on 2D perception. We propose to leverage existing large-scale datasets of 3D models to understand the underlying 3D structure of objects seen in an…

Computer Vision and Pattern Recognition · Computer Science 2020-07-28 Weicheng Kuo , Anelia Angelova , Tsung-Yi Lin , Angela Dai