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Related papers: PARIS3D: Reasoning-based 3D Part Segmentation Usin…

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We introduce Open3DIS, a novel solution designed to tackle the problem of Open-Vocabulary Instance Segmentation within 3D scenes. Objects within 3D environments exhibit diverse shapes, scales, and colors, making precise instance-level…

Computer Vision and Pattern Recognition · Computer Science 2024-04-09 Phuc D. A. Nguyen , Tuan Duc Ngo , Evangelos Kalogerakis , Chuang Gan , Anh Tran , Cuong Pham , Khoi Nguyen

We present PartNet: a consistent, large-scale dataset of 3D objects annotated with fine-grained, instance-level, and hierarchical 3D part information. Our dataset consists of 573,585 part instances over 26,671 3D models covering 24 object…

Computer Vision and Pattern Recognition · Computer Science 2018-12-07 Kaichun Mo , Shilin Zhu , Angel X. Chang , Li Yi , Subarna Tripathi , Leonidas J. Guibas , Hao Su

Although great progress has been made in 3D visual grounding, current models still rely on explicit textual descriptions for grounding and lack the ability to reason human intentions from implicit instructions. We propose a new task called…

Computer Vision and Pattern Recognition · Computer Science 2024-07-18 Chenming Zhu , Tai Wang , Wenwei Zhang , Kai Chen , Xihui Liu

3D object detection has achieved significant performance in many fields, e.g., robotics system, autonomous driving, and augmented reality. However, most existing methods could cause catastrophic forgetting of old classes when performing on…

Computer Vision and Pattern Recognition · Computer Science 2023-08-25 Wenqi Liang , Gan Sun , Chenxi Liu , Jiahua Dong , Kangru Wang

This paper aims to achieve the segmentation of any 3D part in a scene based on natural language descriptions, extending beyond traditional object-level 3D scene understanding and addressing both data and methodological challenges. Due to…

Computer Vision and Pattern Recognition · Computer Science 2025-06-25 Hongyu Wu , Pengwan Yang , Yuki M. Asano , Cees G. M. Snoek

A critical aspect of human visual perception is the ability to parse visual scenes into individual objects and further into object parts, forming part-whole hierarchies. Such composite structures could induce a rich set of semantic concepts…

Computer Vision and Pattern Recognition · Computer Science 2021-12-10 Yining Hong , Li Yi , Joshua B. Tenenbaum , Antonio Torralba , Chuang Gan

To fully understand the 3D context of a single image, a visual system must be able to segment both the visible and occluded regions of objects, while discerning their occlusion order. Ideally, the system should be able to handle any object…

Computer Vision and Pattern Recognition · Computer Science 2024-05-10 Jiayang Ao , Qiuhong Ke , Krista A. Ehinger

Prompt-driven scene synthesis allows users to generate complete 3D environments from textual descriptions. Current text-to-scene methods often struggle with complex geometries and object transformations, and tend to show weak adherence to…

Computer Vision and Pattern Recognition · Computer Science 2025-11-14 Frédéric Berdoz , Luca A. Lanzendörfer , Nick Tuninga , Roger Wattenhofer

We introduce the task of open-vocabulary 3D instance segmentation. Current approaches for 3D instance segmentation can typically only recognize object categories from a pre-defined closed set of classes that are annotated in the training…

Computer Vision and Pattern Recognition · Computer Science 2023-10-31 Ayça Takmaz , Elisabetta Fedele , Robert W. Sumner , Marc Pollefeys , Federico Tombari , Francis Engelmann

Recent segmentation models couple large language models (LLMs) with mask decoders to ground complex language expressions into masks, yet their instructions remain target-referential: they describe, constrain, or imply the region to be…

Computer Vision and Pattern Recognition · Computer Science 2026-05-28 Yuchen Guo , Junli Gong , Hongmin Cai , Yiu-ming Cheung , Weifeng Su

Medical image segmentation is crucial for clinical diagnosis, yet existing models are limited by their reliance on explicit human instructions and lack the active reasoning capabilities to understand complex clinical questions. While recent…

Computer Vision and Pattern Recognition · Computer Science 2025-06-13 Yu Huang , Zelin Peng , Yichen Zhao , Piao Yang , Xiaokang Yang , Wei Shen

Recent works on open-vocabulary 3D instance segmentation show strong promise, but at the cost of slow inference speed and high computation requirements. This high computation cost is typically due to their heavy reliance on 3D clip…

Computer Vision and Pattern Recognition · Computer Science 2025-02-14 Mohamed El Amine Boudjoghra , Angela Dai , Jean Lahoud , Hisham Cholakkal , Rao Muhammad Anwer , Salman Khan , Fahad Shahbaz Khan

The integration of language and 3D perception is critical for embodied AI and robotic systems to perceive, understand, and interact with the physical world. Spatial reasoning, a key capability for understanding spatial relationships between…

Computer Vision and Pattern Recognition · Computer Science 2025-07-11 Jiaxin Huang , Ziwen Li , Hanlve Zhang , Runnan Chen , Xiao He , Yandong Guo , Wenping Wang , Tongliang Liu , Mingming Gong

Current 3D scene segmentation methods are heavily dependent on manually annotated 3D training datasets. Such manual annotations are labor-intensive, and often lack fine-grained details. Importantly, models trained on this data typically…

Computer Vision and Pattern Recognition · Computer Science 2023-12-29 Rui Huang , Songyou Peng , Ayca Takmaz , Federico Tombari , Marc Pollefeys , Shiji Song , Gao Huang , Francis Engelmann

Spatial reasoning in large-scale 3D environments such as warehouses remains a significant challenge for vision-language systems due to scene clutter, occlusions, and the need for precise spatial understanding. Existing models often struggle…

Computer Vision and Pattern Recognition · Computer Science 2025-10-15 Tanner Muturi , Blessing Agyei Kyem , Joshua Kofi Asamoah , Neema Jakisa Owor , Richard Dyzinela , Andrews Danyo , Yaw Adu-Gyamfi , Armstrong Aboah

Prompt-based medical image segmentation has rapidly emerged, yet existing methods rely on explicit prompts like bounding boxes and struggle to reason about the spatial relationships essential for clinical diagnosis. While general-domain…

Computer Vision and Pattern Recognition · Computer Science 2026-04-01 Quoc-Huy Trinh , Minh-Van Nguyen , Jun Zeng , Debesh Jha , Ulas Bagci

3D object recognition is a challenging task for intelligent and robot systems in industrial and home indoor environments. It is critical for such systems to recognize and segment the 3D object instances that they encounter on a frequent…

Computer Vision and Pattern Recognition · Computer Science 2024-06-24 Siddiqui Muhammad Yasir , Amin Muhammad Sadiq , Hyunsik Ahn

Most recent 3D instance segmentation methods are open vocabulary, offering a greater flexibility than closed-vocabulary methods. Yet, they are limited to reasoning within a specific set of concepts, \ie the vocabulary, prompted by the user…

Computer Vision and Pattern Recognition · Computer Science 2025-03-31 Guofeng Mei , Luigi Riz , Yiming Wang , Fabio Poiesi

Bridging the gap between complex human instructions and precise 3D object grounding remains a significant challenge in vision and robotics. Existing 3D segmentation methods often struggle to interpret ambiguous, reasoning-based…

Computer Vision and Pattern Recognition · Computer Science 2026-03-12 Changyue Shi , Minghao Chen , Yiping Mao , Chuxiao Yang , Xinyuan Hu , Jiajun Ding , Zhou Yu

Verbal-prompted segmentation is inherently limited by the expressiveness of natural language and struggles with uncommon, instance-specific, or difficult-to-describe objects: scenarios frequently encountered in manufacturing and 3D printing…

Computer Vision and Pattern Recognition · Computer Science 2026-03-25 Zhenran Tang , Rohan Nagabhirava , Changliu Liu