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Semantic, instance, and panoptic segmentation of 3D point clouds have been addressed using task-specific models of distinct design. Thereby, the similarity of all segmentation tasks and the implicit relationship between them have not been…

Computer Vision and Pattern Recognition · Computer Science 2023-11-27 Maxim Kolodiazhnyi , Anna Vorontsova , Anton Konushin , Danila Rukhovich

Medical image segmentation, a crucial task in computer vision, facilitates the automated delineation of anatomical structures and pathologies, supporting clinicians in diagnosis, treatment planning, and disease monitoring. Notably,…

Computer Vision and Pattern Recognition · Computer Science 2024-12-11 Fuchen Zheng , Xinyi Chen , Xuhang Chen , Haolun Li , Xiaojiao Guo , Weihuang Liu , Chi-Man Pun , Shoujun Zhou

In recent works on semantic segmentation, there has been a significant focus on designing and integrating transformer-based encoders. However, less attention has been given to transformer-based decoders. We emphasize that the decoder stage…

Computer Vision and Pattern Recognition · Computer Science 2024-08-20 Jing Xu , Wentao Shi , Pan Gao , Zhengwei Wang , Qizhu Li

Polygonal meshes have become the standard for discretely approximating 3D shapes, thanks to their efficiency and high flexibility in capturing non-uniform shapes. This non-uniformity, however, leads to irregularity in the mesh structure,…

Computer Vision and Pattern Recognition · Computer Science 2023-07-04 Giuseppe Vecchio , Luca Prezzavento , Carmelo Pino , Francesco Rundo , Simone Palazzo , Concetto Spampinato

In recent years, transformer-based models have exhibited considerable potential in point cloud instance segmentation. Despite the promising performance achieved by existing methods, they encounter challenges such as instance query…

Computer Vision and Pattern Recognition · Computer Science 2026-02-27 Lei Yao , Yi Wang , Moyun Liu , Lap-Pui Chau

Although current deep learning methods have achieved impressive results for semantic segmentation, they incur high computational costs and have a huge number of parameters. For real-time applications, inference speed and memory usage are…

Computer Vision and Pattern Recognition · Computer Science 2019-09-19 Mengyu Liu , Hujun Yin

Modern approaches for semantic segmentation usually employ dilated convolutions in the backbone to extract high-resolution feature maps, which brings heavy computation complexity and memory footprint. To replace the time and memory…

Computer Vision and Pattern Recognition · Computer Science 2019-03-29 Huikai Wu , Junge Zhang , Kaiqi Huang , Kongming Liang , Yizhou Yu

The performance of face detectors has been largely improved with the development of convolutional neural network. However, it remains challenging for face detectors to detect tiny, occluded or blurry faces. Besides, most face detectors…

Computer Vision and Pattern Recognition · Computer Science 2019-04-26 Wanxin Tian , Zixuan Wang , Haifeng Shen , Weihong Deng , Yiping Meng , Binghui Chen , Xiubao Zhang , Yuan Zhao , Xiehe Huang

For real-time semantic segmentation, how to increase the speed while maintaining high resolution is a problem that has been discussed and solved. Backbone design and fusion design have always been two essential parts of real-time semantic…

Computer Vision and Pattern Recognition · Computer Science 2021-06-21 Tan Sixiang

Existing unified image segmentation models either employ a unified architecture across multiple tasks but use separate weights tailored to each dataset, or apply a single set of weights to multiple datasets but are limited to a single task.…

Computer Vision and Pattern Recognition · Computer Science 2024-04-09 Pei Wang , Zhaowei Cai , Hao Yang , Ashwin Swaminathan , R. Manmatha , Stefano Soatto

Although using convolutional neural networks (CNNs) as backbones achieves great successes in computer vision, this work investigates a simple backbone network useful for many dense prediction tasks without convolutions. Unlike the…

Computer Vision and Pattern Recognition · Computer Science 2021-08-12 Wenhai Wang , Enze Xie , Xiang Li , Deng-Ping Fan , Kaitao Song , Ding Liang , Tong Lu , Ping Luo , Ling Shao

With wearing masks becoming a new cultural norm, facial expression recognition (FER) while taking masks into account has become a significant challenge. In this paper, we propose a unified multi-branch vision transformer for facial…

Computer Vision and Pattern Recognition · Computer Science 2024-05-01 Armando Zhu , Keqin Li , Tong Wu , Peng Zhao , Bo Hong

Speaker diarization is connected to semantic segmentation in computer vision. Inspired from MaskFormer \cite{cheng2021per} which treats semantic segmentation as a set-prediction problem, we propose an end-to-end approach to predict a set of…

Sound · Computer Science 2021-12-15 Yongquan Lai , Xin Tang , Yuanyuan Fu , Rui Fang

Recent advancements in deep neural networks have made remarkable leap-forwards in dense image prediction. However, the issue of feature alignment remains as neglected by most existing approaches for simplicity. Direct pixel addition between…

Computer Vision and Pattern Recognition · Computer Science 2021-08-18 Shihua Huang , Zhichao Lu , Ran Cheng , Cheng He

Recent segmentation methods leveraging Multi-modal Large Language Models (MLLMs) have shown reliable object-level segmentation and enhanced spatial perception. However, almost all previous methods predominantly rely on specialist mask…

Computer Vision and Pattern Recognition · Computer Science 2026-03-20 Anqi Zhang , Xiaokang Ji , Guangyu Gao , Jianbo Jiao , Chi Harold Liu , Yunchao Wei

Vision Transformer and its variants have demonstrated great potential in various computer vision tasks. But conventional vision transformers often focus on global dependency at a coarse level, which suffer from a learning challenge on…

Computer Vision and Pattern Recognition · Computer Science 2022-09-07 Yunhao Wang , Huixin Sun , Xiaodi Wang , Bin Zhang , Chao Li , Ying Xin , Baochang Zhang , Errui Ding , Shumin Han

Recently, transformer-based networks have shown impressive results in semantic segmentation. Yet for real-time semantic segmentation, pure CNN-based approaches still dominate in this field, due to the time-consuming computation mechanism of…

Computer Vision and Pattern Recognition · Computer Science 2022-10-14 Jian Wang , Chenhui Gou , Qiman Wu , Haocheng Feng , Junyu Han , Errui Ding , Jingdong Wang

The large-scale pretrained model CLIP, trained on 400 million image-text pairs, offers a promising paradigm for tackling vision tasks, albeit at the image level. Later works, such as DenseCLIP and LSeg, extend this paradigm to dense…

Computer Vision and Pattern Recognition · Computer Science 2023-10-12 Ke Jin , Wankou Yang

We propose a novel approach for semantic segmentation that uses an encoder in the reverse direction to decode. Many semantic segmentation networks adopt a feedforward encoder-decoder architecture. Typically, an input is first downsampled by…

Computer Vision and Pattern Recognition · Computer Science 2019-08-28 Beinan Wang , John Glossner , Daniel Iancu , Georgi N. Gaydadjiev

Learned Image Compression (LIC) has shown remarkable progress in recent years. Existing works commonly employ CNN-based or self-attention-based modules as transform methods for compression. However, there is no prior research on neural…

Computer Vision and Pattern Recognition · Computer Science 2024-09-25 Yuxi Liu , Wenhan Yang , Huihui Bai , Yunchao Wei , Yao Zhao