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In this paper, we present the Hierarchy-of-Visual-Words (HoVW), a novel trademark image retrieval (TIR) method that decomposes images into simpler geometric shapes and defines a descriptor for binary trademark image representation by…

Computer Vision and Pattern Recognition · Computer Science 2025-07-30 Vítor N. Lourenço , Gabriela G. Silva , Leandro A. F. Fernandes

Inspired by recent findings that generative diffusion models learn semantically meaningful representations, we use them to discover the intrinsic hierarchical structure in biomedical 3D images using unsupervised segmentation. We show that…

Computer Vision and Pattern Recognition · Computer Science 2023-10-11 Nurislam Tursynbek , Marc Niethammer

Pseudo-healthy image inpainting is an essential preprocessing step for analyzing pathological brain MRI scans. Most current inpainting methods favor slice-wise 2D models for their high in-plane fidelity, but their independence across slices…

Image and Video Processing · Electrical Eng. & Systems 2025-07-25 Dou Hoon Kwark , Shirui Luo , Xiyue Zhu , Yudu Li , Zhi-Pei Liang , Volodymyr Kindratenko

The creation of lifelike human avatars capable of realistic pose variation and viewpoint flexibility remains a fundamental challenge in computer vision and graphics. Current approaches typically yield either geometrically inconsistent…

Computer Vision and Pattern Recognition · Computer Science 2025-12-10 Chia-Hern Lai , I-Hsuan Lo , Yen-Ku Yeh , Thanh-Nguyen Truong , Ching-Chun Huang

Leveraging recent diffusion models, LiDAR-based large-scale 3D scene generation has achieved great success. While recent voxel-based approaches can generate both geometric structures and semantic labels, existing range-view methods are…

Computer Vision and Pattern Recognition · Computer Science 2025-12-02 Dekai Zhu , Yixuan Hu , Youquan Liu , Dongyue Lu , Lingdong Kong , Slobodan Ilic

Diffusion models have demonstrated strong potential for robotic trajectory planning. However, generating coherent trajectories from high-level instructions remains challenging, especially for long-range composition tasks requiring multiple…

Robotics · Computer Science 2024-03-29 Zhixuan Liang , Yao Mu , Hengbo Ma , Masayoshi Tomizuka , Mingyu Ding , Ping Luo

Internal representations are crucial for understanding deep neural networks, such as their properties and reasoning patterns, but remain difficult to interpret. While mapping from feature space to input space aids in interpreting the…

Computer Vision and Pattern Recognition · Computer Science 2026-01-15 Nils Neukirch , Johanna Vielhaben , Nils Strodthoff

Convolutional neural networks (CNNs) have been the consensus for medical image segmentation tasks. However, they suffer from the limitation in modeling long-range dependencies and spatial correlations due to the nature of convolution…

Computer Vision and Pattern Recognition · Computer Science 2023-01-10 Moein Heidari , Amirhossein Kazerouni , Milad Soltany , Reza Azad , Ehsan Khodapanah Aghdam , Julien Cohen-Adad , Dorit Merhof

In this paper a hierarchical model for pixel clustering and image segmentation is developed. In the model an image is hierarchically structured. The original image is treated as a set of nested images, which are capable to reversibly merge…

Computer Vision and Pattern Recognition · Computer Science 2016-12-22 Mikhail Kharinov

Diffusion model is the most advanced method in image generation and has been successfully applied to MRI reconstruction. However, the existing methods do not consider the characteristics of multi-coil acquisition of MRI data. Therefore, we…

Image and Video Processing · Electrical Eng. & Systems 2022-12-23 Chentao Cao , Zhuo-Xu Cui , Jing Cheng , Sen Jia , Hairong Zheng , Dong Liang , Yanjie Zhu

Implicit neural representations store videos as neural networks and have performed well for various vision tasks such as video compression and denoising. With frame index or positional index as input, implicit representations (NeRV, E-NeRV,…

Computer Vision and Pattern Recognition · Computer Science 2023-04-06 Hao Chen , Matt Gwilliam , Ser-Nam Lim , Abhinav Shrivastava

Diffusion models have attained impressive visual quality for image synthesis. However, how to interpret and manipulate the latent space of diffusion models has not been extensively explored. Prior work diffusion autoencoders encode the…

Computer Vision and Pattern Recognition · Computer Science 2023-04-26 Zeyu Lu , Chengyue Wu , Xinyuan Chen , Yaohui Wang , Lei Bai , Yu Qiao , Xihui Liu

Many visual scenes can be described as compositions of latent factors. Effective recognition, reasoning, and editing often require not only forming such compositional representations, but also solving the decomposition problem. One popular…

Computer Vision and Pattern Recognition · Computer Science 2026-02-11 Calvin Yeung , Ali Zakeri , Zhuowen Zou , Mohsen Imani

Traditional video coding (VVC, HEVC) prioritizes human visual perception, transmitting substantial texture redundancy that severely hinders machine decision-making under constrained bandwidths. In dynamic channels, this redundancy causes…

Signal Processing · Electrical Eng. & Systems 2026-04-10 Chenxing Li , Yiping Duan , Han Jiao , Xiaoming Tao , Weiyao Lin , Mingquan Lu

While recent vision-and-language models (VLMs) like CLIP are a powerful tool for analyzing text and images in a shared semantic space, they do not explicitly model the hierarchical nature of the set of texts which may describe an image.…

Computer Vision and Pattern Recognition · Computer Science 2024-07-17 Morris Alper , Hadar Averbuch-Elor

Diffusion models, widely used in image generation, rely on iterative refinement to generate images from noise. Understanding this data evolution is important for model development and interpretability, yet challenging due to its…

Computer Vision and Pattern Recognition · Computer Science 2024-12-12 Vidya Prasad , Hans van Gorp , Christina Humer , Ruud J. G. van Sloun , Anna Vilanova , Nicola Pezzotti

The rapid growth of hyperspectral data archives in remote sensing (RS) necessitates effective compression methods for storage and transmission. Recent advances in learning-based hyperspectral image (HSI) compression have significantly…

Computer Vision and Pattern Recognition · Computer Science 2026-03-30 Martin Hermann Paul Fuchs , Behnood Rasti , Begüm Demir

The computer vision community has developed numerous techniques for digitally restoring true scene information from single-view degraded photographs, an important yet extremely ill-posed task. In this work, we tackle image restoration from…

Computer Vision and Pattern Recognition · Computer Science 2025-03-19 Yucheng Mao , Boyang Wang , Nilesh Kulkarni , Jeong Joon Park

Diffusion models have demonstrated remarkable performance in image and video synthesis. However, scaling them to high-resolution inputs is challenging and requires restructuring the diffusion pipeline into multiple independent components,…

Computer Vision and Pattern Recognition · Computer Science 2024-06-13 Ivan Skorokhodov , Willi Menapace , Aliaksandr Siarohin , Sergey Tulyakov

Low-light image enhancement techniques have significantly progressed, but unstable image quality recovery and unsatisfactory visual perception are still significant challenges. To solve these problems, we propose a novel and robust…

Computer Vision and Pattern Recognition · Computer Science 2024-04-18 Minglong Xue , Jinhong He , Wenhai Wang , Mingliang Zhou