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We present a novel pyramidal output representation to ensure parsimony with our "specialize and fuse" process for semantic segmentation. A pyramidal "output" representation consists of coarse-to-fine levels, where each level is "specialize"…

Computer Vision and Pattern Recognition · Computer Science 2021-08-20 Chi-Wei Hsiao , Cheng Sun , Hwann-Tzong Chen , Min Sun

Hierarchical clustering is an effective and efficient approach widely used for classical image segmentation methods. However, many existing methods using neural networks generate segmentation masks directly from per-pixel features,…

Computer Vision and Pattern Recognition · Computer Science 2023-03-01 Teppei Suzuki

The goal of this work is to segment the objects in an image that are referred to by a sequence of linguistic descriptions (referring expressions). We propose a deep neural network with recurrent layers that output a sequence of binary…

Computer Vision and Pattern Recognition · Computer Science 2019-11-07 Alba Herrera-Palacio , Carles Ventura , Carina Silberer , Ionut-Teodor Sorodoc , Gemma Boleda , Xavier Giro-i-Nieto

In this work, we consider the problem of learning a hierarchical generative model of an object from a set of images which show examples of the object in the presence of variable background clutter. Existing approaches to this problem are…

Computer Vision and Pattern Recognition · Computer Science 2019-04-16 Adam Kortylewski , Aleksander Wieczorek , Mario Wieser , Clemens Blumer , Sonali Parbhoo , Andreas Morel-Forster , Volker Roth , Thomas Vetter

In this paper, we introduce a hierarchical transformer-based model designed for sophisticated image segmentation tasks, effectively bridging the granularity of part segmentation with the comprehensive scope of object segmentation. At the…

Computer Vision and Pattern Recognition · Computer Science 2024-09-04 Yunfei Xie , Cihang Xie , Alan Yuille , Jieru Mei

In this paper, we argue that iterative computation with diffusion models offers a powerful paradigm for not only generation but also visual perception tasks. We unify tasks such as depth estimation, optical flow, and amodal segmentation…

Computer Vision and Pattern Recognition · Computer Science 2024-11-19 Rahul Ravishankar , Zeeshan Patel , Jathushan Rajasegaran , Jitendra Malik

Interpreting the prediction mechanism of complex models is currently one of the most important tasks in the machine learning field, especially with layered neural networks, which have achieved high predictive performance with various…

Machine Learning · Statistics 2018-10-04 Chihiro Watanabe

The segmentation, seen as the association of a partition with an image, is a difficult task. It can be decomposed in two steps: at first, a family of contours associated with a series of nested partitions (or hierarchy) is created and…

Computer Vision and Pattern Recognition · Computer Science 2016-09-12 Amin Fehri , Santiago Velasco-Forero , Fernand Meyer

Cognitive maps play a crucial role in facilitating flexible behaviour by representing spatial and conceptual relationships within an environment. The ability to learn and infer the underlying structure of the environment is crucial for…

Artificial Intelligence · Computer Science 2023-09-20 Daria de Tinguy , Toon Van de Maele , Tim Verbelen , Bart Dhoedt

Video recognition remains an open challenge, requiring the identification of diverse content categories within videos. Mainstream approaches often perform flat classification, overlooking the intrinsic hierarchical structure relating…

Computer Vision and Pattern Recognition · Computer Science 2024-05-29 Rui Zhang , Shuailong Li , Junxiao Xue , Feng Lin , Qing Zhang , Xiao Ma , Xiaoran Yan

Recent advances in pixel-level tasks (e.g. segmentation) illustrate the benefit of of long-range interactions between aggregated region-based representations that can enhance local features. However, such aggregated representations, often…

Computer Vision and Pattern Recognition · Computer Science 2024-04-19 Mir Rayat Imtiaz Hossain , Leonid Sigal , James J. Little

Recent research has made significant progress in localizing and editing image regions based on text. However, most approaches treat these regions in isolation, relying solely on local cues without accounting for how each part contributes to…

Computer Vision and Pattern Recognition · Computer Science 2025-10-21 Thuy Phuong Vu , Dinh-Cuong Hoang , Minhhuy Le , Phan Xuan Tan

Semantic image parsing, which refers to the process of decomposing images into semantic regions and constructing the structure representation of the input, has recently aroused widespread interest in the field of computer vision. The recent…

Computer Vision and Pattern Recognition · Computer Science 2018-10-11 Lili Huang , Jiefeng Peng , Ruimao Zhang , Guanbin Li , Liang Lin

Scene graph generation has emerged as an important problem in computer vision. While scene graphs provide a grounded representation of objects, their locations and relations in an image, they do so only at the granularity of proposal…

Computer Vision and Pattern Recognition · Computer Science 2021-04-30 Siddhesh Khandelwal , Mohammed Suhail , Leonid Sigal

Generating high-fidelity 3D indoor scenes remains a significant challenge due to data scarcity and the complexity of modeling intricate spatial relations. Current methods often struggle to scale beyond training distribution to dense scenes…

Computer Vision and Pattern Recognition · Computer Science 2026-05-12 Xingjian Ran , Shujie Zhang , Weipeng Zhong , Li Luo , Bo Dai

Current vision-language models may grasp basic spatial cues and simple directions (e.g. left, right, front, back), but struggle with the multi-dimensional spatial reasoning necessary for human-like understanding and real-world applications.…

Computer Vision and Pattern Recognition · Computer Science 2025-06-10 Wenyu Zhang , Wei En Ng , Lixin Ma , Yuwen Wang , Junqi Zhao , Allison Koenecke , Boyang Li , Lu Wang

We describe a method to subdivide the surface of a sphere into spherical triangles of similar, but not identical, shapes and sizes. The Hierarchical Triangular Mesh (HTM) is a quad-tree that is particularly good at supporting searches at…

Databases · Computer Science 2007-05-23 Alexander S. Szalay , Jim Gray , George Fekete , Peter Z. Kunszt , Peter Kukol , Ani Thakar

Existing methods for reconstructing interactive scenes primarily focus on replacing reconstructed objects with CAD models retrieved from a limited database, resulting in significant discrepancies between the reconstructed and observed…

Robotics · Computer Science 2023-08-02 Zeyu Zhang , Lexing Zhang , Zaijin Wang , Ziyuan Jiao , Muzhi Han , Yixin Zhu , Song-Chun Zhu , Hangxin Liu

We introduce a hierarchical architecture for video understanding that exploits the structure of real world actions by capturing targets at different levels of granularity. We design the model such that it first learns simpler coarse-grained…

Computer Vision and Pattern Recognition · Computer Science 2018-09-11 Farzaneh Mahdisoltani , Roland Memisevic , David Fleet

High-resolution image segmentation remains challenging and error-prone due to the enormous size of intermediate feature maps. Conventional methods avoid this problem by using patch based approaches where each patch is segmented…

Computer Vision and Pattern Recognition · Computer Science 2021-08-27 Fahim Faisal Niloy , M. Ashraful Amin , Amin Ahsan Ali , AKM Mahbubur Rahman
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