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Majority of state-of-the-art monocular depth estimation methods are supervised learning approaches. The success of such approaches heavily depends on the high-quality depth labels which are expensive to obtain. Some recent methods try to…

Computer Vision and Pattern Recognition · Computer Science 2019-11-27 Yipeng Mou , Mingming Gong , Huan Fu , Kayhan Batmanghelich , Kun Zhang , Dacheng Tao

Monocular 3D object detection plays a crucial role in autonomous driving. However, existing monocular 3D detection algorithms depend on 3D labels derived from LiDAR measurements, which are costly to acquire for new datasets and challenging…

Computer Vision and Pattern Recognition · Computer Science 2024-09-25 Fulong Ma , Xiaoyang Yan , Guoyang Zhao , Xiaojie Xu , Yuxuan Liu , Jun Ma , Ming Liu

Monocular 3D object detection (Mono3D) in mobile settings (e.g., on a vehicle, a drone, or a robot) is an important yet challenging task. Due to the near-far disparity phenomenon of monocular vision and the ever-changing camera pose, it is…

Computer Vision and Pattern Recognition · Computer Science 2023-03-27 Yunsong Zhou , Quan Liu , Hongzi Zhu , Yunzhe Li , Shan Chang , Minyi Guo

Although cameras are ubiquitous, robotic platforms typically rely on active sensors like LiDAR for direct 3D perception. In this work, we propose a novel self-supervised monocular depth estimation method combining geometry with a new deep…

Computer Vision and Pattern Recognition · Computer Science 2020-03-31 Vitor Guizilini , Rares Ambrus , Sudeep Pillai , Allan Raventos , Adrien Gaidon

Without ground truth supervision, self-supervised depth estimation can be trapped in a local minimum due to the gradient-locality issue of the photometric loss. In this paper, we present a framework to enhance depth by leveraging semantic…

Computer Vision and Pattern Recognition · Computer Science 2023-04-03 Shan Lin , Yuheng Zhi , Michael C. Yip

Cross domain object detection learns an object detector for an unlabeled target domain by transferring knowledge from an annotated source domain. Promising results have been achieved via Mean Teacher, however, pseudo labeling which is the…

Computer Vision and Pattern Recognition · Computer Science 2024-07-11 Jiangming Chen , Li Liu , Wanxia Deng , Zhen Liu , Yu Liu , Yingmei Wei , Yongxiang Liu

Self-supervised monocular depth estimation (MDE) has gained popularity for obtaining depth predictions directly from videos. However, these methods often produce scale invariant results, unless additional training signals are provided.…

Computer Vision and Pattern Recognition · Computer Science 2025-12-05 Gasser Elazab , Torben Gräber , Michael Unterreiner , Olaf Hellwich

Self-supervised monocular depth estimation (SSMDE) aims to predict the dense depth map of a monocular image, by learning depth from RGB image sequences, eliminating the need for ground-truth depth labels. Although this approach simplifies…

Computer Vision and Pattern Recognition · Computer Science 2025-02-21 Wonhyeok Choi , Kyumin Hwang , Wei Peng , Minwoo Choi , Sunghoon Im

We propose a self-supervised monocular depth estimation network tailored for endoscopic scenes, aiming to infer depth within the gastrointestinal tract from monocular images. Existing methods, though accurate, typically assume consistent…

Computer Vision and Pattern Recognition · Computer Science 2025-04-25 Zebo Huang , Yinghui Wang

Self-supervised monocular depth estimation methods aim to be used in critical applications such as autonomous vehicles for environment analysis. To circumvent the potential imperfections of these approaches, a quantification of the…

Computer Vision and Pattern Recognition · Computer Science 2023-11-14 Rémi Marsal , Florian Chabot , Angelique Loesch , William Grolleau , Hichem Sahbi

There have been attempts to detect 3D objects by fusion of stereo camera images and LiDAR sensor data or using LiDAR for pre-training and only monocular images for testing, but there have been less attempts to use only monocular image…

Computer Vision and Pattern Recognition · Computer Science 2022-09-21 Curie Kim , Ue-Hwan Kim , Jong-Hwan Kim

Dense depth estimation is essential to scene-understanding for autonomous driving. However, recent self-supervised approaches on monocular videos suffer from scale-inconsistency across long sequences. Utilizing data from the ubiquitously…

Computer Vision and Pattern Recognition · Computer Science 2023-02-03 Hemang Chawla , Arnav Varma , Elahe Arani , Bahram Zonooz

We delve into pseudo-labeling for semi-supervised monocular 3D object detection (SSM3OD) and discover two primary issues: a misalignment between the prediction quality of 3D and 2D attributes and the tendency of depth supervision derived…

Computer Vision and Pattern Recognition · Computer Science 2024-11-06 Jiacheng Zhang , Jiaming Li , Xiangru Lin , Wei Zhang , Xiao Tan , Junyu Han , Errui Ding , Jingdong Wang , Guanbin Li

Monocular Depth Estimation (MDE) enables spatial understanding, 3D reconstruction, and autonomous navigation, yet deep learning approaches often predict only relative depth without a consistent metric scale. This limitation reduces…

Computer Vision and Pattern Recognition · Computer Science 2025-08-27 Jiuling Zhang

Recent advances in zero-shot monocular depth estimation(MDE) have significantly improved generalization by unifying depth distributions through normalized depth representations and by leveraging large-scale unlabeled data via pseudo-label…

Computer Vision and Pattern Recognition · Computer Science 2025-04-22 Xiankang He , Dongyan Guo , Hongji Li , Ruibo Li , Ying Cui , Chi Zhang

Monocular 3D object detection is an important yet challenging task in autonomous driving. Some existing methods leverage depth information from an off-the-shelf depth estimator to assist 3D detection, but suffer from the additional…

Computer Vision and Pattern Recognition · Computer Science 2022-03-29 Kuan-Chih Huang , Tsung-Han Wu , Hung-Ting Su , Winston H. Hsu

Transformer-based methods have demonstrated superior performance for monocular 3D object detection recently, which aims at predicting 3D attributes from a single 2D image. Most existing transformer-based methods leverage both visual and…

Computer Vision and Pattern Recognition · Computer Science 2023-09-04 Xuan He , Fan Yang , Kailun Yang , Jiacheng Lin , Haolong Fu , Meng Wang , Jin Yuan , Zhiyong Li

State-of-the-art self-supervised learning approaches for monocular depth estimation usually suffer from scale ambiguity. They do not generalize well when applied on distance estimation for complex projection models such as in fisheye and…

Computer Vision and Pattern Recognition · Computer Science 2020-11-17 Varun Ravi Kumar , Marvin Klingner , Senthil Yogamani , Stefan Milz , Tim Fingscheidt , Patrick Maeder

Multimodal information (e.g., visible and thermal) can generate robust pedestrian detections to facilitate around-the-clock computer vision applications, such as autonomous driving and video surveillance. However, it still remains a crucial…

Computer Vision and Pattern Recognition · Computer Science 2019-04-09 Dayan Guan , Xing Luo , Yanpeng Cao , Jiangxin Yang , Yanlong Cao , George Vosselman , Michael Ying Yang

Deep metric learning aims to learn features relying on the consistency or divergence of class labels. However, in monocular depth estimation, the absence of a natural definition of class poses challenges in the leveraging of deep metric…

Computer Vision and Pattern Recognition · Computer Science 2024-12-31 Chunpu Liu , Guanglei Yang , Wangmeng Zuo , Tianyi Zan