Color shift behavior at the edges of white-and-black line patterns was measured and analyzed for three raster-scan mobile projectors using the three-primary-color (red, green, blue) laser diodes. The 2D data of the line patterns projected on a standard diffusive reflectance screen were captured by a speckle measurement device for analyzing the effects of both the color speckle noise and the edge color shift. The color speckle noise usually blurs the underlying behavior of the edge color shift. To extract the underlying color shift, the color speckle noise was minimized by opening the iris of the speckle measurement device, and the residual noise was averaged. The color shift trajectories were successfully plotted with perfectly high visibility in the color space consisting of CIE1931 chromaticity coordinates and normalized illuminance. As a result, each of the three projectors showed a unique edge color shift behavior with a unique trajectory in the color space, depending on the spatial behavior of red, green, blue laser beams or the temporal response of red, green, blue laser diodes.

使用三基色（红、绿、蓝）激光二极管测量和分析了三台光栅扫描移动投影仪在白-黑线图案边缘的色移行为。投影在标准漫反射屏幕上的线条图案的二维数据由散斑测量设备捕获，用于分析色斑噪声和边缘颜色偏移的影响。色斑噪声通常会模糊边缘颜色偏移的潜在行为。为了提取潜在的色移，通过打开散斑测量设备的光圈来最小化色斑噪声，并对残余噪声进行平均。在由 CIE1931 色度坐标和归一化照度组成的色彩空间中，成功绘制了具有完美高可见度的色移轨迹。其结果，