发表机构
Guangdong Technion–Israel Institute of Technology（广东以色列理工学院）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
提出约束色彩载体（CCC）方法，在DNG多光源配置文件中利用共享插值槽位同时实现特征化保真和条件色彩渲染，实验验证其保真误差低于容差且显著降低目标误差。
AI 中文摘要
在数字负片（DNG）多光源配置文件中，特征化矩阵和非线性渲染负载共享依赖条件的插值槽位，因此增加一个用于渲染能力的槽位也会引入额外的特征化状态。我们提出了约束色彩载体（CCC），该方法从原始双矩阵段构建序列化前的ColorMatrix和ForwardMatrix三个状态，同时允许相同的共享槽位承载三个HueSatMap渲染基。条件特定的HueSatMap负载通过固定的序列化下游渲染算子求解为目标数值原像，载体选择对宿主有效的插值特征化强制执行保真界限。我们在索尼ILCE-7RM5 Adobe Standard双光源配置上评估CCC，使用从Phocus 4.0.1恢复的哈苏X2D 100C白平衡相关标准色彩校正目标。使用欧几里得Oklab误差，CCC在最差温度下的95百分位保真误差为0.003857，低于规定的0.004容差，并将最差条件下的95百分位目标误差从双表示的0.08208降至0.03508。合成的普通三元组产生0.014802的保真误差，超出相同容差。序列化的DNG相机配置文件（DCP）和可扩展元数据平台（XMP）工件精确复现最终色彩表负载，与求解器端离线执行产生零数值差异，表明CCC解决方案在所评估的序列化配置文件格式中可表示。
英文摘要
In Digital Negative (DNG) multi-illuminant profiles, characterization matrices and nonlinear rendering payloads share condition-dependent interpolation slots, so adding a slot for rendering capacity also introduces an additional characterization state. We introduce Constrained Color Carrier (CCC), which constructs the three pre-serialization ColorMatrix and ForwardMatrix states from the original dual matrix segments while allowing the same shared slots to carry three HueSatMap rendering bases. Condition-specific HueSatMap payloads are solved as numerical preimages of the target through a fixed serialized downstream rendering operator, and carrier selection enforces a preservation bound on the host-effective interpolated characterization. We evaluate CCC on the Sony ILCE-7RM5 Adobe Standard dual-illuminant profile using a white-balance-dependent Standard ColorCorrect target recovered from Phocus 4.0.1 for the Hasselblad X2D 100C. Using Euclidean Oklab error, CCC yields a worst-temperature 95th-percentile preservation error of 0.003857, below the prescribed tolerance of 0.004, and reduces the worst-condition 95th-percentile target error from 0.08208 for the Dual representation to 0.03508. The synthetic Ordinary Triple yields a preservation error of 0.014802 and exceeds the same tolerance. The serialized DNG Camera Profile (DCP) and Extensible Metadata Platform (XMP) artifacts reproduce the final color-table payloads exactly and yield zero numerical difference from solver-side offline execution, showing that the CCC solution is representable within the evaluated serialized profile format.
Comments21pages, 3 figures
