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Talk · International Conference on Control and Automation · June 1, 2026

Antiphase Stereo-Light Modulation for Time-Based Highlighted Region of Interest in Robotic Vision

Zaki Al-Farabi, Airis Kairolla, Amir Yelenov, Dinmukhammed Mukashev

Amir Yelenov
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Abstract

This paper describes an antiphase dual-source illumination approach that creates a hardware-defined Region of Interest (ROI) through temporal superposition: two laterally modulated light fields overlap to form a central zone with substantially reduced flicker. Electrical verification confirmed near-ideal antiphase modulation, and high-speed camera analysis showed that intensity peaks in one lateral zone align with troughs in the other, producing a markedly flatter temporal profile in the overlap region. Photometric measurements confirmed that stabilization does not come at the cost of dimming: ROI reached nearly double the mean illuminance of the lateral areas of the ROI. Together, these results validate the additive superposition model and show that antiphase lighting can produce a brighter, more temporally stable illumination region in a controlled static setup. These findings establish the photometric basis of the proposed method and motivate future applications in various robotic systems.

Advanced optical system designAdvanced Vision and ImagingOptical measurement and interference techniquesregion of interesttemporal superpositionflicker reduction

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