Thomas P B M, Formankiewicz M A, Mollon J D
Department of Ophthalmology, Addenbrooke's Hospital, Cambridge, United Kingdom.
Vision Res. 2011 Oct 15;51(20):2224-33. doi: 10.1016/j.visres.2011.08.016. Epub 2011 Aug 27.
We present a theoretical model to estimate the influence of photopigment optical density (OD) on the color vision of anomalous trichromats. Photopigment spectral sensitivities are generated using the Lamb (1995) template, which we correct for OD and pre-receptoral filters. Sixteen hyperspectral images (Foster, Nascimento, & Amano, 2004; Nascimento, Ferreira, & Foster, 2002) are analyzed, and the signals produced in the post-receptoral channels calculated. In the case of anomalous trichromats whose two longer-wavelength cones have peak sensitivities that lie close together in the spectrum, color vision can be substantially enhanced if the cones differ in optical density by a realistic amount.
我们提出了一个理论模型，以估计光色素光密度（OD）对异常三色视者色觉的影响。使用Lamb（1995）模板生成光色素光谱敏感度，并针对OD和感受器前滤波器进行校正。分析了16幅高光谱图像（Foster、Nascimento和Amano，2004年；Nascimento、Ferreira和Foster，2002年），并计算了感受器后通道中产生的信号。对于两个长波长视锥细胞的峰值敏感度在光谱中靠得很近的异常三色视者，如果视锥细胞的光密度存在实际差异，色觉可以得到显著增强。
