Results 41 to 50 of about 1,652 (216)
Exploiting the Rolling Shutter Read-Out Time for ENF-Based Camera Identification
Applied Sciences, 2023 The electric network frequency (ENF) is a signal that varies over time and represents the frequency of the energy supplied by a mains power system. It continually varies around a nominal value of 50/60 Hz as a result of fluctuations over time in the ...
Ericmoore Ngharamike +3 more
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Dynamical models for position measurement with global shutter and rolling shutter cameras [PDF]
2009 IEEE/RSJ International Conference on Intelligent Robots and Systems, 2009 Vision can be used as a sensor for measuring the position of a visual marker. When the displacement of the marker over the camera exposure time is significant, the obtained position measurement is an image of the trajectory over the exposure time. This paper deals with dynamical models providing a prediction of the measurement from the continuous-time ...
Edouard Laroche, Shingo Kagami
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IEEE Photonics JournalThis study focuses on visible light communication using a high-speed display and rolling shutter camera. In conventional methods, data are arranged in vertical stripes, but the low transmission rate is a critical challenge.
Chieri Okawa +2 more
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Sensors, 2017 CMOS image sensors (CISs) with global shutter (GS) function are strongly required in order to avoid image degradation. However, CISs with GS function have generally been inferior to the rolling shutter (RS) CIS in performance, because they have more ...
Hiroshi Sekine +8 more
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Frame recovery using multiple images in rolling shutter based systems
IET Optoelectronics, 2023 An algorithm for recovering transmitted static identifiers (IDs) in rolling shutter based Optical Camera Communication systems is proposed by the authors, considering a system comprised of a camera and a circular light source.
Miguel Rêgo +3 more
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Tongxin xuebao, 2006 A CMOS imaging sensor with high resolution and dual shutter mode for space information acquisition was presented.The theoretical operation principles and characters of rolling shutter and synchronous shutter for the CMOS imaging sensor were analyzed and ...
ZHANG Chi, YU Shi-jie, YOU Zheng
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Advanced Functional Materials, EarlyView.Photoaligned and photopatterned liquid crystal platforms provide programmable control of optical phase, polarization, and spin‐orbit interactions, enabling compact generation of structured light and complex wavefronts. This review highlights how tailored molecular orientations transform simple beams into designed optical fields, opening versatile ...
Le Zhou +6 more
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Nihon Kikai Gakkai ronbunshu, 2021 A robotic fish is ideal for an ecological survey of underwater life, because underwater animals cannot easily notice the robot. However, when a robotic fish swings its body to swim, it makes a rolling motion due to movements of the center of gravity and ...
Naoki KAWASAKI +2 more
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Advanced Optical Materials, EarlyView.A spectral compensation strategy is introduced to overcome radical‐induced degradation of dichroic dyes during UV photopolymerization. By incorporating a complementary photochromic liquid‐crystalline dye, broadband optical attenuation is preserved without disrupting photopolymerization, enabling high‐contrast and durable dye‐doped liquid crystal ...
Wei‐Hsien Wu +4 more
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Soft Actuators Integrated with Control and Power Units: Approaching Wireless Autonomous Soft Robots
Advanced Robotics Research, EarlyView.Soft robots exhibit significant development potential in various applications. However, there are still key technical challenges regarding material improvement, structure design and components integration. This review focuses on the development and challenge of soft actuators, power components, and control components in untethered intelligent soft ...
Renwu Shi, Feifei Pan, Xiaobin Ji
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