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首页> 外文会议>Head- and helmet-mounted displays XVI: design and applications >Spatial noise in microdisplays for near-to-eye applications
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Spatial noise in microdisplays for near-to-eye applications

机译：用于近眼应用的微型显示器中的空间噪声

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摘要

Spatial noise in imaging systems has been characterized and its impact on image quality metrics has been addressed primarily with respect to the introduction of this noise at the sensor component. However, sensor fixed pattern noise is not the only source of fixed pattern noise in an imaging system. Display fixed pattern noise cannot be easily mitigated in processing and, therefore, must be addressed. In this paper, a thorough examination of the amount and the effect of display fixed pattern noise is presented. The specific manifestation of display fixed pattern noise is dependent upon the display technology. Utilizing a calibrated camera, US Army RDECOM CERDEC NVESD has developed a microdisplay (μdisplay) spatial noise data collection capability. Noise and signal power spectra were used to characterize the display signal to noise ratio (SNR) as a function of spatial frequency analogous to the minimum resolvable temperature difference (MRTD) of a thermal sensor. The goal of this study is to establish a measurement technique to characterize μdisplay limiting performance to assist in proper imaging system specification.
机译：已经表征了成像系统中的空间噪声，并且主要针对在传感器组件处引入此噪声来解决其对图像质量指标的影响。但是，传感器固定模式噪声并不是成像系统中固定模式噪声的唯一来源。显示固定模式的噪声无法在处理中轻松缓解，因此必须解决。在本文中，将对显示固定图案噪声的数量和影响进行彻底检查。显示固定图案噪声的具体表现取决于显示技术。美国陆军RDECOM CERDEC NVESD通过使用经过校准的相机，开发了微显示（μdisplay）空间噪声数据收集功能。噪声和信号功率谱用于表征显示信噪比（SNR）作为空间频率的函数，类似于热传感器的最小可分辨温度差（MRTD）。这项研究的目的是建立一种测量技术，以表征μdisplay限制性能，以帮助适当的成像系统规格。

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