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Accurate endoscope pose estimation and 3D tissue surface reconstruction significantly enhances monocular minimally invasive surgical procedures by enabling accurate navigation and improved spatial awareness. However, monocular endoscope…

计算机视觉与模式识别 · 计算机科学 2025-08-18 Muzammil Khan , Enzo Kerkhof , Matteo Fusaglia , Koert Kuhlmann , Theo Ruers , Françoise J. Siepel

We propose a depth estimation method from a single-shot monocular endoscopic image using Lambertian surface translation by domain adaptation and depth estimation using multi-scale edge loss. We employ a two-step estimation process including…

图像与视频处理 · 电气工程与系统科学 2022-01-13 Masahiro Oda , Hayato Itoh , Kiyohito Tanaka , Hirotsugu Takabatake , Masaki Mori , Hiroshi Natori , Kensaku Mori

Endoscopic video-based tasks, such as visual navigation and surgical phase recognition, play a crucial role in minimally invasive surgeries by providing real-time assistance. While recent video foundation models have shown promise, their…

计算机视觉与模式识别 · 计算机科学 2025-05-16 Qingyao Tian , Huai Liao , Xinyan Huang , Bingyu Yang , Dongdong Lei , Sebastien Ourselin , Hongbin Liu

In this paper, we introduce DCDepth, a novel framework for the long-standing monocular depth estimation task. Moving beyond conventional pixel-wise depth estimation in the spatial domain, our approach estimates the frequency coefficients of…

计算机视觉与模式识别 · 计算机科学 2024-10-23 Kun Wang , Zhiqiang Yan , Junkai Fan , Wanlu Zhu , Xiang Li , Jun Li , Jian Yang

Depth Anything has achieved remarkable success in monocular depth estimation with strong generalization ability. However, it suffers from temporal inconsistency in videos, hindering its practical applications. Various methods have been…

计算机视觉与模式识别 · 计算机科学 2025-06-17 Sili Chen , Hengkai Guo , Shengnan Zhu , Feihu Zhang , Zilong Huang , Jiashi Feng , Bingyi Kang

Depth estimation is a cornerstone of 3D reconstruction and plays a vital role in minimally invasive endoscopic surgeries. However, most current depth estimation networks rely on traditional convolutional neural networks, which are limited…

计算机视觉与模式识别 · 计算机科学 2025-07-16 Bojian Li , Bo Liu , Xinning Yao , Jinghua Yue , Fugen Zhou

Monocular depth estimation is crucial for tracking and reconstruction algorithms, particularly in the context of surgical videos. However, the inherent challenges in directly obtaining ground truth depth maps during surgery render…

计算机视觉与模式识别 · 计算机科学 2024-10-11 Ange Lou , Yamin Li , Yike Zhang , Jack Noble

Depth information is important for autonomous systems to perceive environments and estimate their own state. Traditional depth estimation methods, like structure from motion and stereo vision matching, are built on feature correspondences…

计算机视觉与模式识别 · 计算机科学 2020-07-06 Chaoqiang Zhao , Qiyu Sun , Chongzhen Zhang , Yang Tang , Feng Qian

Depth cues have been proved very useful in various computer vision and robotic tasks. This paper addresses the problem of monocular depth estimation from a single still image. Inspired by the effectiveness of recent works on multi-scale…

计算机视觉与模式识别 · 计算机科学 2018-03-05 Dan Xu , Elisa Ricci , Wanli Ouyang , Xiaogang Wang , Nicu Sebe

Accurate monocular metric depth estimation (MMDE) is crucial to solving downstream tasks in 3D perception and modeling. However, the remarkable accuracy of recent MMDE methods is confined to their training domains. These methods fail to…

计算机视觉与模式识别 · 计算机科学 2025-12-19 Luigi Piccinelli , Christos Sakaridis , Yung-Hsu Yang , Mattia Segu , Siyuan Li , Wim Abbeloos , Luc Van Gool

Self-supervised monocular depth estimation approaches either ignore independently moving objects in the scene or need a separate segmentation step to identify them. We propose MonoDepthSeg to jointly estimate depth and segment moving…

计算机视觉与模式识别 · 计算机科学 2021-10-22 Sadra Safadoust , Fatma Güney

Depth estimation from monocular endoscopic images presents significant challenges due to the complexity of endoscopic surgery, such as irregular shapes of human soft tissues, as well as variations in lighting conditions. Existing methods…

图像与视频处理 · 电气工程与系统科学 2025-02-07 Dawei Lu , Deqiang Xiao , Danni Ai , Jingfan Fan , Tianyu Fu , Yucong Lin , Hong Song , Xujiong Ye , Lei Zhang , Jian Yang

As processing power has become more available, more human-like artificial intelligences are created to solve image processing tasks that we are inherently good at. As such we propose a model that estimates depth from a monocular image. Our…

计算机视觉与模式识别 · 计算机科学 2019-05-14 Fabian Truetsch , Alfred Schöttl

Depth-aware video panoptic segmentation tackles the inverse projection problem of restoring panoptic 3D point clouds from video sequences, where the 3D points are augmented with semantic classes and temporally consistent instance…

计算机视觉与模式识别 · 计算机科学 2022-10-17 Andra Petrovai , Sergiu Nedevschi

Depth estimation from single monocular images is a key component of scene understanding and has benefited largely from deep convolutional neural networks (CNN) recently. In this article, we take advantage of the recent deep residual…

计算机视觉与模式识别 · 计算机科学 2017-08-14 Yuanzhouhan Cao , Zifeng Wu , Chunhua Shen

This work addresses the challenge of streamed video depth estimation, which expects not only per-frame accuracy but, more importantly, cross-frame consistency. We argue that sharing contextual information between frames or clips is pivotal…

计算机视觉与模式识别 · 计算机科学 2025-06-10 Jiahao Shao , Yuanbo Yang , Hongyu Zhou , Youmin Zhang , Yujun Shen , Vitor Guizilini , Yue Wang , Matteo Poggi , Yiyi Liao

Event cameras offer distinct advantages over conventional frame-based sensors, including microsecond-level temporal resolution, high dynamic range, and low bandwidth. In this paper, we predict per-pixel depth distributions from monocular…

计算机视觉与模式识别 · 计算机科学 2026-05-12 Viktor Bergkvist , Felix Rydell , Per-Erik Forssén , David Gustafsson , Johan Rideg

We propose a learning-based method that solves monocular stereo and can be extended to fuse depth information from multiple target frames. Given two unconstrained images from a monocular camera with known intrinsic calibration, our network…

计算机视觉与模式识别 · 计算机科学 2019-09-13 Kaixuan Wang , Shaojie Shen

Monocular depth and pose estimation play an important role in the development of colonoscopy-assisted navigation, as they enable improved screening by reducing blind spots, minimizing the risk of missed or recurrent lesions, and lowering…

计算机视觉与模式识别 · 计算机科学 2026-02-23 Xinwei Ju , Rema Daher , Danail Stoyanov , Sophia Bano , Francisco Vasconcelos

Multi-view stereo depth estimation based on cost volume usually works better than self-supervised monocular depth estimation except for moving objects and low-textured surfaces. So in this paper, we propose a multi-frame depth estimation…

计算机视觉与模式识别 · 计算机科学 2023-05-11 Zhuofei Huang , Jianlin Liu , Shang Xu , Ying Chen , Yong Liu