Reproduce “PCTac: Mechanochromic Photonic-Crystal Tactile Sensor for Dexterous Manipulation” on OpenResearch
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About this paper
Ruilin Zhang, Xuanshuo Liu, Junzhe Dai, Kefei Wu, Xuhao Qin, Ziyuan Jiao, Wanlin Li, Yurui Qu and 1 more
PCTac uses a mechanochromic photonic-crystal fingertip to turn contact into color patterns for robot manipulation. It compares current images with an unloaded reference and feeds circular hue changes, rather than reconstructed geometry or force, to a learned policy. Across three tasks, PCTac Hue achieved 68/90 successes (75.6%), versus 60/90 (66.7%) for PCTac RGB, under the evaluated conditions.
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