...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of the Optical Society of America, A. Optics, image science, and vision >Characterizing perceptual performance at multiple discrimination precisions in external noise
【24h】

Characterizing perceptual performance at multiple discrimination precisions in external noise

机译：在外部噪声的多种判别精度下表征感知性能

获取原文
获取原文并翻译 | 示例
   

获取外文期刊封面封底 >>

       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Existing observer models developed for studies with the external noise paradigm are strictly applicable only to target detection or identification/discrimination of orthogonal target(s). We elaborated the perceptual template model (PTM) to account for contrast thresholds in identifying nonorthogonal targets. Full contrast psychometric functions were measured in an orientation identification task with four orientation differences across a wide range of external noise levels. We showed that observer performance can be modeled by the elaborated PTM with two templates that correspond to the two stimulus categories. Sampling efficiencies of the human observers were also estimated. The elaborated PTM provides a theoretical framework for characterizing joint feature and contrast sensitivity of human observers.
机译：为研究外部噪声范例而开发的现有观察者模型严格仅适用于目标检测或正交目标的识别/区分。我们详细介绍了感知模板模型（PTM），以说明识别非正交目标时的对比阈值。在一个方向识别任务中测量了全对比度心理测量功能，该功能在广泛的外部噪声水平范围内具有四个方向差异。我们表明，观察者的表现可以通过精心设计的PTM与对应于两个刺激类别的两个模板来建模。还估计了人类观察者的采样效率。详尽的PTM提供了一个理论框架，用于表征人类观察者的关节特征和对比度敏感性。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号