Abstract

The row scanning mechanism of a rolling shutter camera can be used to infer high-frequency information from a low-frame-rate video. Combining the high intensity of laser speckle and high row-sampling rate of a rolling shutter, extreme detectable vibration frequency limited by rolling shutter camera imaging is experimentally demonstrated. Using a commercially available industrial camera at a frame rate of 70 fps, a vibration signal with a frequency of 14.285 kHz is extracted that corresponds to an inter-row sampling period of 35 µs and a sampling frequency of 28.57 kHz. Connected component and centroid alignment algorithms are used to extract the inter-row vibration displacement. The parameters that limit the highest and lowest detectable frequencies are discussed.

© 2023 Optica Publishing Group

Luminescence lifetime imaging using a cellphone camera with an electronic rolling shutter

Bo Xiong and Qiyin Fang
Opt. Lett. 45(1) 81-84 (2020)

400 m rolling-shutter-based optical camera communications link

Elizabeth Eso, Shivani Teli, Navid Bani Hassan, Stanislav Vitek, Zabih Ghassemlooy, and Stanislav Zvanovec
Opt. Lett. 45(5) 1059-1062 (2020)

Automated rolling shutter calibration with an LED panel

Jianzhu Huai, Yuan Zhuang, Binliang Wang, Chongyang Zhang, Yuxin Shao, Jicheng Tang, and Alper Yilmaz
Opt. Lett. 48(4) 847-850 (2023)

100,000 frames-per-second compressive imaging with a conventional rolling-shutter camera by random point-spread-function engineering

Gil Weinberg and Ori Katz
Opt. Express 28(21) 30616-30625 (2020)

Sequential RGB color imaging with a millimeter-scale monochrome camera with a rolling shutter

Jordan Anspach and David L. Dickensheets
Appl. Opt. 62(17) 4496-4504 (2023)