TransGHOST: Real-Time, Synthesis-Free Reconstruction of Instrument-Occluded Regions in Ophthalmic Microsurgery
Overview
This research introduces TransGHOST, a non-generative, real-time reconstruction system for instrument-occluded scenes in ophthalmic microsurgery. By resampling recorded frames using geometric transforms fitted to visible regions, the method provides per-pixel confidence and provenance while abstaining on unsupported areas. Evaluated on a new veterinary clinical corpus of canine cataract surgery with pixel-level labels, TransGHOST achieves 31.89 dB masked PSNR and 0.915 masked SSIM in safe mode at median latency of 51.7 ms, outperforming LaMa by 3.45 dB on matched-mask validation and demonstrating robustness to occluded candidate references.
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Event evidence and corrections
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Reported quantity · median latency: 51.7 other · Basis not reported
“provenance and marks unsupported pixels as abstentions. We evaluate TransGHOST on a new veterinary clinical corpus of canine cataract surgery with pixel-level instrument and anatomy labels. Only the occluded region is scored, and each scoring target is verified to differ from the reference supplied to the system. Safe mode reaches 31.89 dB masked PSNR and 0.915 masked SSIM at 51.7 ms median and 85.5 ms 95th-percenti”
Exact source · revision 1Source owner not reported
Reported quantity · percentile latency (95th): 85.5 other · Basis not reported
“provenance and marks unsupported pixels as abstentions. We evaluate TransGHOST on a new veterinary clinical corpus of canine cataract surgery with pixel-level instrument and anatomy labels. Only the occluded region is scored, and each scoring target is verified to differ from the reference supplied to the system. Safe mode reaches 31.89 dB masked PSNR and 0.915 masked SSIM at 51.7 ms median and 85.5 ms 95th-percenti”
Exact source · revision 1Source owner not reported
Reported quantity · masked PSNR (veterinary corpus): 31.89 other · Basis not reported
“provenance and marks unsupported pixels as abstentions. We evaluate TransGHOST on a new veterinary clinical corpus of canine cataract surgery with pixel-level instrument and anatomy labels. Only the occluded region is scored, and each scoring target is verified to differ from the reference supplied to the system. Safe mode reaches 31.89 dB masked PSNR and 0.915 masked SSIM at 51.7 ms median and 85.5 ms 95th-percenti”
Exact source · revision 1Source owner not reported
Reported quantity · masked SSIM (veterinary corpus): 0.915 other · Basis not reported
“provenance and marks unsupported pixels as abstentions. We evaluate TransGHOST on a new veterinary clinical corpus of canine cataract surgery with pixel-level instrument and anatomy labels. Only the occluded region is scored, and each scoring target is verified to differ from the reference supplied to the system. Safe mode reaches 31.89 dB masked PSNR and 0.915 masked SSIM at 51.7 ms median and 85.5 ms 95th-percenti”
Exact source · revision 1Source owner not reported
Reported quantity · masked PSNR (held-out cohort): 29.83 other · Basis not reported
“le latency. On a pre-declared held-out cohort using instrument cutouts excluded from segmentation training, it reaches 29.83 dB masked PSNR, while matched-mask evaluation on validation shows a 3.45 dB advantage over LaMa. Region-aware reference selection improves masked PSNR by 3.60 dB over recency when candidate references can themselves be occluded. Reference-age analysis further defines the operating interval for”
Exact source · revision 1Source owner not reported
Reported quantity · masked PSNR advantage over LaMa: 3.45 other · Basis not reported
“le latency. On a pre-declared held-out cohort using instrument cutouts excluded from segmentation training, it reaches 29.83 dB masked PSNR, while matched-mask evaluation on validation shows a 3.45 dB advantage over LaMa. Region-aware reference selection improves masked PSNR by 3.60 dB over recency when candidate references can themselves be occluded. Reference-age analysis further defines the operating interval for”
Exact source · revision 1Source owner not reported
Reported quantity · masked PSNR improvement over recency: 3.6 other · Basis not reported
“le latency. On a pre-declared held-out cohort using instrument cutouts excluded from segmentation training, it reaches 29.83 dB masked PSNR, while matched-mask evaluation on validation shows a 3.45 dB advantage over LaMa. Region-aware reference selection improves masked PSNR by 3.60 dB over recency when candidate references can themselves be occluded. Reference-age analysis further defines the operating interval for”
Exact source · revision 1Source owner not reported
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- arXiv Robotics — research abstractsSignalTransGHOST: Real-Time, Synthesis-Free Reconstruction of Instrument-Occluded Regions in Ophthalmic Microsurgery
This research introduces TransGHOST, a non-generative, real-time reconstruction system for instrument-occluded scenes in ophthalmic microsurgery. By resampling recorded frames using geometric transforms fitted to visible regions, the method provides per-pixel confidence and provenance while abstaining on unsupported areas. Evaluated on a new veterinary clinical corpus of canine cataract surgery with pixel-level labels, TransGHOST achieves 31.89 dB masked PSNR and 0.915 masked SSIM in safe mode at median latency of 51.7 ms, outperforming LaMa by 3.45 dB on matched-mask validation and demonstrating robustness to occluded candidate references.
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