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In this paper we propose the use of quantum genetic algorithm to optimize the support vector machine (SVM) for human action recognition. The Microsoft Kinect sensor can be used for skeleton tracking, which provides the joints' position…

Machine Learning · Statistics 2017-12-18 Yafeng Liu , Shimin Feng , Zhikai Zhao , Enjie Ding

Multi-view echocardiographic sequences segmentation is crucial for clinical diagnosis. However, this task is challenging due to limited labeled data, huge noise, and large gaps across views. Here we propose a recurrent aggregation learning…

Image and Video Processing · Electrical Eng. & Systems 2019-07-29 Ming Li , Weiwei Zhang , Guang Yang , Chengjia Wang , Heye Zhang , Huafeng Liu , Wei Zheng , Shuo Li

Multimodal human action understanding is a significant problem in computer vision, with the central challenge being the effective utilization of the complementarity among diverse modalities while maintaining model efficiency. However, most…

Computer Vision and Pattern Recognition · Computer Science 2026-03-11 Hongsong Wang , Heng Fei , Bingxuan Dai , Jie Gui

Lossless compression of dynamic 2D+t and 3D+t medical data is challenging regarding the huge amount of data, the characteristics of the inherent noise, and the high bit depth. Beyond that, a scalable representation is often required in…

Image and Video Processing · Electrical Eng. & Systems 2023-02-08 Daniela Lanz , André Kaup

Learning visual representations of medical images (e.g., X-rays) is core to medical image understanding but its progress has been held back by the scarcity of human annotations. Existing work commonly relies on fine-tuning weights…

Computer Vision and Pattern Recognition · Computer Science 2022-09-21 Yuhao Zhang , Hang Jiang , Yasuhide Miura , Christopher D. Manning , Curtis P. Langlotz

Recent advances in multimodal large language models have enabled unified processing of visual and textual inputs, offering promising applications in general-purpose medical AI. However, their ability to generalize compositionally across…

Computer Vision and Pattern Recognition · Computer Science 2025-11-17 Pooja Singh , Siddhant Ujjain , Tapan Kumar Gandhi , Sandeep Kumar

Vision-Language Models (VLMs), such as CLIP, have demonstrated remarkable zero-shot capabilities in various computer vision tasks. However, their application to medical imaging remains challenging due to the high variability and complexity…

Computer Vision and Pattern Recognition · Computer Science 2026-05-15 Xusheng Liang , Lihua Zhou , Nianxin Li , Miao Xu , Ziyang Song , Dong Yi , Jinlin Wu , Jiawei Ma , Hongbin Liu , Zhen Lei , Jiebo Luo

Human action recognition remains an important yet challenging task. This work proposes a novel action recognition system. It uses a novel Multiple View Region Adaptive Multi-resolution in time Depth Motion Map (MV-RAMDMM) formulation…

Computer Vision and Pattern Recognition · Computer Science 2019-04-15 Mahmoud Al-Faris , John P. Chiverton , Yanyan Yang , David L. Ndzi

Recently, multimodal tasks have strongly advanced the field of action recognition with their rich multimodal information. However, due to the scarcity of tri-modal data, research on tri-modal action recognition tasks faces many challenges.…

Computer Vision and Pattern Recognition · Computer Science 2025-06-12 Songping Wang , Xiantao Hu , Yueming Lyu , Caifeng Shan

Reconstructing photo-realistic drivable human avatars from multi-view image sequences has been a popular and challenging topic in the field of computer vision and graphics. While existing NeRF-based methods can achieve high-quality novel…

Computer Vision and Pattern Recognition · Computer Science 2024-03-19 Yujiao Jiang , Qingmin Liao , Xiaoyu Li , Li Ma , Qi Zhang , Chaopeng Zhang , Zongqing Lu , Ying Shan

Learning visuomotor policies for Autonomous Aerial Vehicles (AAVs) relying solely on monocular vision is an attractive yet highly challenging paradigm. Existing end-to-end learning approaches directly map high-dimensional RGB observations…

Robotics · Computer Science 2026-04-08 Yuhang Zhang , Mingsheng Li , Yujing Shang , Zhuoyuan Yu , Chao Yan , Jiaping Xiao , Mir Feroskhan

Spatiotemporal imaging has applications in e.g. cardiac diagnostics, surgical guidance, and radiotherapy monitoring, In this paper, we explain the temporal motion by identifying the underlying dynamics, only based on the sequential images.…

Medical Physics · Physics 2024-10-16 Niklas Gunnarsson , Peter Kimstrand , Jens Sjölund , Thomas B. Schön

In this paper, we propose a novel framework that allows therapists to teach robot-assisted rehabilitation exercises remotely via RGB-D video. Our system encodes demonstrations as 6-DoF body-centric trajectories using Cartesian Dynamic…

Robotics · Computer Science 2026-03-17 Ali Alabbas , Camillo Murgia , Joanne Regan , Philip Long

A robot's ability to act is fundamentally constrained by what it can perceive. Many existing approaches to visual representation learning utilize general-purpose training criteria, e.g. image reconstruction, smoothness in latent space, or…

Volumetric medical imaging offers great potential for understanding complex pathologies. Yet, traditional 2D slices provide little support for interpreting spatial relationships, forcing users to mentally reconstruct anatomy into three…

In this paper, we critically evaluate the capabilities of the state-of-the-art multimodal large language model, i.e., GPT-4 with Vision (GPT-4V), on Visual Question Answering (VQA) task. Our experiments thoroughly assess GPT-4V's…

Computer Vision and Pattern Recognition · Computer Science 2023-10-31 Zhiling Yan , Kai Zhang , Rong Zhou , Lifang He , Xiang Li , Lichao Sun

3D Gaussian Splatting (3DGS) has shown remarkable success in synthesizing novel views given multiple views of a static scene. Yet, 3DGS faces challenges when applied to dynamic scenes because 3D Gaussian parameters need to be updated per…

Graphics · Computer Science 2024-07-08 Kai Katsumata , Duc Minh Vo , Hideki Nakayama

Policy search reinforcement learning has been drawing much attention as a method of learning a robot control policy. In particular, policy search using such non-parametric policies as Gaussian process regression can learn optimal actions…

Robotics · Computer Science 2021-06-15 Hikaru Sasaki , Takamitsu Matsubara

Artificial Intelligence (AI) has demonstrated significant potential in healthcare, particularly in disease diagnosis and treatment planning. Recent progress in Medical Large Vision-Language Models (Med-LVLMs) has opened up new possibilities…

Machine Learning · Computer Science 2025-03-04 Peng Xia , Kangyu Zhu , Haoran Li , Tianze Wang , Weijia Shi , Sheng Wang , Linjun Zhang , James Zou , Huaxiu Yao

Recovering high-fidelity 3D images from sparse or degraded 2D images is a fundamental challenge in medical imaging, with broad applications ranging from 3D ultrasound reconstruction to MRI super-resolution. In the context of fetal MRI,…

Computer Vision and Pattern Recognition · Computer Science 2025-12-17 Maik Dannecker , Steven Jia , Nil Stolt-Ansó , Nadine Girard , Guillaume Auzias , François Rousseau , Daniel Rueckert