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The integration of RGB and depth modalities significantly enhances the accuracy of segmenting complex indoor scenes, with depth data from RGB-D cameras playing a crucial role in this improvement. However, collecting an RGB-D dataset is more…

Computer Vision and Pattern Recognition · Computer Science 2025-03-25 Xinhua Xu , Hong Liu , Jianbing Wu , Jinfu Liu

Depth estimation is an important computer vision problem with many practical applications to mobile devices. While many solutions have been proposed for this task, they are usually very computationally expensive and thus are not applicable…

DSLR cameras can achieve multiple zoom levels via shifting lens distances or swapping lens types. However, these techniques are not possible on smartphone devices due to space constraints. Most smartphone manufacturers adopt a hybrid zoom…

Computer Vision and Pattern Recognition · Computer Science 2024-01-04 Xiaotong Wu , Wei-Sheng Lai , YiChang Shih , Charles Herrmann , Michael Krainin , Deqing Sun , Chia-Kai Liang

Recent advances in snapshot multispectral (MS) imaging have enabled compact, low-cost spectral sensors for consumer and mobile devices. By capturing richer spectral information than conventional RGB sensors, these systems can enhance key…

Computer Vision and Pattern Recognition · Computer Science 2026-03-24 Luca Cogo , Marco Buzzelli , Simone Bianco , Javier Vazquez-Corral , Raimondo Schettini

Various depth estimation models are now widely used on many mobile and IoT devices for image segmentation, bokeh effect rendering, object tracking and many other mobile tasks. Thus, it is very crucial to have efficient and accurate depth…

Spatial visual perception is a fundamental requirement in physical-world applications like autonomous driving and robotic manipulation, driven by the need to interact with 3D environments. Capturing pixel-aligned metric depth using RGB-D…

Computer Vision and Pattern Recognition · Computer Science 2026-01-27 Bin Tan , Changjiang Sun , Xiage Qin , Hanat Adai , Zelin Fu , Tianxiang Zhou , Han Zhang , Yinghao Xu , Xing Zhu , Yujun Shen , Nan Xue

Autonomous field robots operating in unstructured environments require robust perception to ensure safe and reliable operations. Recent advances in monocular depth estimation have demonstrated the potential of low-cost cameras as depth…

Robotics · Computer Science 2026-05-21 Marco Job , Thomas Stastny , Eleni Kelasidi , Roland Siegwart , Michael Pantic

We propose HYBRIDDEPTH, a robust depth estimation pipeline that addresses key challenges in depth estimation,including scale ambiguity, hardware heterogeneity, and generalizability. HYBRIDDEPTH leverages focal stack, data conveniently…

Computer Vision and Pattern Recognition · Computer Science 2024-12-30 Ashkan Ganj , Hang Su , Tian Guo

In this paper we present a compositing image synthesis method that generates RGB canvases with well aligned segmentation maps and sparse depth maps, coupled with an in-painting network that transforms the RGB canvases into high quality RGB…

Computer Vision and Pattern Recognition · Computer Science 2022-06-06 Valentina Musat , Daniele De Martini , Matthew Gadd , Paul Newman

We present an approach to depth estimation that fuses information from a stereo pair with sparse range measurements derived from a LIDAR sensor or a range camera. The goal of this work is to exploit the complementary strengths of the two…

Computer Vision and Pattern Recognition · Computer Science 2018-09-21 Shreyas S. Shivakumar , Kartik Mohta , Bernd Pfrommer , Vijay Kumar , Camillo J. Taylor

Most existing robotic surgery systems adopt a human-in-the-loop paradigm, often with the surgeon directly teleoperating the robotic system. Adding intelligence to these robots would enable higher-level control, such as supervised autonomy…

Compared to DSLR cameras, smartphone cameras have smaller sensors, which limits their spatial resolution; smaller apertures, which limits their light gathering ability; and smaller pixels, which reduces their signal-to noise ratio. The use…

Computer Vision and Pattern Recognition · Computer Science 2021-02-18 Bartlomiej Wronski , Ignacio Garcia-Dorado , Manfred Ernst , Damien Kelly , Michael Krainin , Chia-Kai Liang , Marc Levoy , Peyman Milanfar

Modern cameras with large apertures often suffer from a shallow depth of field, resulting in blurry images of objects outside the focal plane. This limitation is particularly problematic for fixed-focus cameras, such as those used in smart…

Computer Vision and Pattern Recognition · Computer Science 2025-10-28 Xinge Yang , Chuong Nguyen , Wenbin Wang , Kaizhang Kang , Wolfgang Heidrich , Xiaoxing Li

Depth sensing is crucial for 3D reconstruction and scene understanding. Active depth sensors provide dense metric measurements, but often suffer from limitations such as restricted operating ranges, low spatial resolution, sensor…

Computer Vision and Pattern Recognition · Computer Science 2019-01-10 Chao Liu , Jinwei Gu , Kihwan Kim , Srinivasa Narasimhan , Jan Kautz

Fisheye cameras are increasingly adopted in robotics for near-field manipulation, navigation, and immersive perception, yet indoor depth benchmarks with accurate ground truth are still missing. To address this, we introduce WideDepth - the…

Computer Vision and Pattern Recognition · Computer Science 2026-05-26 Ilia Indyk , Ignat Penshin , Ivan Sosin , Maxim Monastyrny , Aleksei Valenkov , Ilya Makarov

Mobile smartphones compactly provide sensors such as cameras, IMUs, GNSS measurement units, and wireless and wired communication channels required for robotics projects. They are affordable, portable, and programmable, which makes them…

Robotics · Computer Science 2025-07-18 Masoud Dayani Najafabadi , Khoshnam Shojaei

We design a multiscopic vision system that utilizes a low-cost monocular RGB camera to acquire accurate depth estimation. Unlike multi-view stereo with images captured at unconstrained camera poses, the proposed system controls the motion…

Computer Vision and Pattern Recognition · Computer Science 2021-08-21 Weihao Yuan , Rui Fan , Michael Yu Wang , Qifeng Chen

Smartphone-based heart rate (HR) monitoring apps using finger-over-camera photoplethysmography (PPG) face significant challenges in performance evaluation and device compatibility due to device variability and fragmentation. Manual testing…

Computer Vision and Pattern Recognition · Computer Science 2025-07-01 Ming-Zher Poh , Jonathan Wang , Jonathan Hsu , Lawrence Cai , Eric Teasley , James A. Taylor , Jameson K. Rogers , Anupam Pathak , Shwetak Patel

Majority of the perception methods in robotics require depth information provided by RGB-D cameras. However, standard 3D sensors fail to capture depth of transparent objects due to refraction and absorption of light. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2021-04-02 Luyang Zhu , Arsalan Mousavian , Yu Xiang , Hammad Mazhar , Jozef van Eenbergen , Shoubhik Debnath , Dieter Fox

Direct time-of-flight (dToF) sensors are promising for next-generation on-device 3D sensing. However, limited by manufacturing capabilities in a compact module, the dToF data has a low spatial resolution (e.g., $\sim 20\times30$ for iPhone…

Image and Video Processing · Electrical Eng. & Systems 2023-05-05 Zhanghao Sun , Wei Ye , Jinhui Xiong , Gyeongmin Choe , Jialiang Wang , Shuochen Su , Rakesh Ranjan