小伍的游乐场【中文】论文速递|港中文 MMLab:把相机与屏幕当作耦合系统的端到端校色
手机拍的照片在自家屏幕上显示,颜色、亮度、对比度却常与实景对不上——传统流水线对相机和屏幕分别标定,低维颜色变换层层累积误差。港中文 MMLab 团队提出 Color Pass-Through:把相机与显示屏当作一个耦合系统做端到端学习优化,直接在拍摄图像上一步完成从捕捉到显示全链路的校准。用户研究中比基线方法平均高 2.0 分(5 分制),感知色彩还原准确度提升超过 2 倍,数字指标与真人观察双重验证。
【EN】Paper Brief | Color Pass-Through: End-to-End Calibration Treating Camera and Display as One Coupled System (CUHK MMLab)
Photos captured on a phone often look off — in color, brightness, contrast — when shown on that phone's own screen, because traditional pipelines calibrate camera and display separately, accumulating errors through low-dimensional color transforms. CUHK MMLab's Color Pass-Through instead treats the camera and display as one coupled system, learning an end-to-end, single-step calibration across the full capture-to-display path. It gains +2.0 points on a 5-point user study over baselines and more than doubles perceived color-accuracy reproduction, validated with both digital metrics and human observers.
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