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    • 2. 发明授权
    • Retinal information mapping system
    • 视网膜信息测绘系统
    • US4494838A
    • 1985-01-22
    • US398132
    • 1982-07-14
    • Donald L. WallquistGilbert G. Kuperman
    • Donald L. WallquistGilbert G. Kuperman
    • G06T5/20A61B3/14
    • G06T5/20
    • The mapping provides a capability for quantifying an external scene in a manner equivalent to the allocation at perceptual bandwidth in the human retina. The device samples the scene, either photographically or by video; records a digital version of the scene, processes the digital version so that the effects of the distribution rods in the retina provides the weighting for allocating signal processing bandwidth differentially across the scene in accordance with human physiological data, and produces a recording of the processed digital image.The processing uses a selected acuity factor as a parameter, a neighborhood is assigned to each pixel, with a radius r equal to (1.0+(acuity factor.times.R))/2.0, where R is the distance from the center of the image. The digital values of all pixels in the neighborhood are summed and the sum is divided by the number of pixels in the neighborhood to obtain an average value. This value is then assigned to the pixel in forming a processed image frame.
    • 映射提供了以与人视网膜中感知带宽上的分配相当的方式量化外部场景的能力。 该设备以照片或视频方式对场景进行采样; 记录场景的数字版本,处理数字版本,使得分配棒在视网膜中的效果提供了根据人体生理数据在场景上差异地分配信号处理带宽的加权,并且产生经处理的数字 图片。 该处理使用选择的锐度因子作为参数,将一个邻域分配给每个像素,半径r等于(1.0+(敏锐度因子×R))/ 2.0,其中R是距离图像中心的距离。 将邻域中所有像素的数字值求和,并将和除以邻域中的像素数以获得平均值。 然后,在形成经处理的图像帧时将该值分配给像素。