A spatial color-mixing model based on tricolor angular frequencies is proposed in consideration that the design theory falls behind the application of digital camouflage pattern.The model is based on Fourier transform...A spatial color-mixing model based on tricolor angular frequencies is proposed in consideration that the design theory falls behind the application of digital camouflage pattern.The model is based on Fourier transform and Gaussian low-pass filter(LPF).In the model,the tricolor angular frequencies are introduced to the spatial frequency response function of human color vision,and the effects of atmospheric attenuation and air screen brightness on color mixture are considered.The field test shows that the model can simulate the color-mixing process in the aspects of color-mixing order,and shape and position of color-mixing spot.But the color-mixing spot color is not perfect,which can be improved by optimizing the atmospheric parameters and tricolor cut-off angular frequencies.The model provides a tool for the research on digital camouflage pattern.展开更多
本研究以考氏鳍竺鲷(Pterapogon kauderni)为研究对象,采用显微观察和拍照的方法记录了考氏鳍竺鲷早期发育过程中色素细胞的分布及形态变化以及体色变化过程。在水温(27±0.5)℃条件下,考氏鳍竺鲷胚胎经15~22d孵化。受精后4d(4 days...本研究以考氏鳍竺鲷(Pterapogon kauderni)为研究对象,采用显微观察和拍照的方法记录了考氏鳍竺鲷早期发育过程中色素细胞的分布及形态变化以及体色变化过程。在水温(27±0.5)℃条件下,考氏鳍竺鲷胚胎经15~22d孵化。受精后4d(4 days post fertilization,4dpf)胚胎发育至器官形成期,6dpf黑色素在眼球出现,7dpf黄色素细胞在体节处出现,8dpf虹彩颗粒反射小板在眼球出现,19dpf白色素细胞在第二背鳍出现。考氏鳍竺鲷体表图案的形成自12dpf头部眼间隔黑色素细胞的出现开始,21dpf吻部第一色带初显,孵化后1d(1 day post hatching,1dph)卵黄囊吸收完毕,体侧四条色带与尾部Y形色带基本形成,70dph身体中部第三和第四色带之间开始出现白色斑点,220dph体色模式与2龄成鱼一致。研究结果可为探究考氏鳍竺鲷体色形成调控机制和观赏鱼进化学说的发展以及新品种的选育提供理论依据。展开更多
文摘A spatial color-mixing model based on tricolor angular frequencies is proposed in consideration that the design theory falls behind the application of digital camouflage pattern.The model is based on Fourier transform and Gaussian low-pass filter(LPF).In the model,the tricolor angular frequencies are introduced to the spatial frequency response function of human color vision,and the effects of atmospheric attenuation and air screen brightness on color mixture are considered.The field test shows that the model can simulate the color-mixing process in the aspects of color-mixing order,and shape and position of color-mixing spot.But the color-mixing spot color is not perfect,which can be improved by optimizing the atmospheric parameters and tricolor cut-off angular frequencies.The model provides a tool for the research on digital camouflage pattern.
文摘本研究以考氏鳍竺鲷(Pterapogon kauderni)为研究对象,采用显微观察和拍照的方法记录了考氏鳍竺鲷早期发育过程中色素细胞的分布及形态变化以及体色变化过程。在水温(27±0.5)℃条件下,考氏鳍竺鲷胚胎经15~22d孵化。受精后4d(4 days post fertilization,4dpf)胚胎发育至器官形成期,6dpf黑色素在眼球出现,7dpf黄色素细胞在体节处出现,8dpf虹彩颗粒反射小板在眼球出现,19dpf白色素细胞在第二背鳍出现。考氏鳍竺鲷体表图案的形成自12dpf头部眼间隔黑色素细胞的出现开始,21dpf吻部第一色带初显,孵化后1d(1 day post hatching,1dph)卵黄囊吸收完毕,体侧四条色带与尾部Y形色带基本形成,70dph身体中部第三和第四色带之间开始出现白色斑点,220dph体色模式与2龄成鱼一致。研究结果可为探究考氏鳍竺鲷体色形成调控机制和观赏鱼进化学说的发展以及新品种的选育提供理论依据。
