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Encoding of the retinal image as observer-relative and object-relative luminance changes.

机译:视网膜图像的编码是相对于观察者的相对亮度和相对于物体的亮度变化。

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摘要

Luminance was changed at one log unit per twenty-two minutes in three stimulus conditions (normal image, no image, a single edge scene in which the luminance change modifies the edge ratio). The presence or absence of an image has no effect on detection of slow luminance change. Detection of a slowly changing edge ratio occurs much sooner, although observers detect the contrast change without being aware of which region has changed. A change in the local edge is more likeley to be interpreted as change in a surrounded region than change in the surrounding region. The visual system is most sensitive to small changes in the local edge ratio when the edge contrast is low.
机译:在三种刺激条件下(正常图像,无图像,单个边缘场景(亮度变化会改变边缘比率)),以每22分钟一个对数单位的亮度进行更改。图像的存在或不存在对缓慢的亮度变化的检测没有影响。尽管观察者在不知道哪个区域发生了变化的情况下检测到对比度变化,但检测到缓慢变化的边缘比率的时间要早​​得多。局部边缘的变化比周围区域的变化更可能被解释为周围区域的变化。当边缘对比度较低时,视觉系统对局部边缘比率的细微变化最敏感。

著录项

  • 作者

    Schubert, James Matthew.;

  • 作者单位

    Rutgers The State University of New Jersey - Newark.;

  • 授予单位 Rutgers The State University of New Jersey - Newark.;
  • 学科 Psychology Experimental.;Health Sciences Ophthalmology.
  • 学位 Ph.D.
  • 年度 1991
  • 页码 216 p.
  • 总页数 216
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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