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公开(公告)号:US5457493A
公开(公告)日:1995-10-10
申请号:US121710
申请日:1993-09-15
申请人: Michael Leddy , Mark Boysel , James A. Delong , James M. Florence , Tsen-Hwang Lin , Jeffrey Sampsell
发明人: Michael Leddy , Mark Boysel , James A. Delong , James M. Florence , Tsen-Hwang Lin , Jeffrey Sampsell
CPC分类号: H04N17/00 , G02B26/0841 , H04N5/33
摘要: An image simulation system 20 for testing sensor systems 26 and for training image sensor personnel wherein synthetic image data is generated by a scene generator 21 and projected by an image projector 23. The image projector 23 uses a digital micromirror device array 27 to modulate the incident energy and create an image. Four modulation schemes are discussed including digital pulse-width modulation, phase contrast modulation, full complex modulation, and analog modulation. The digital pulse width modulation technique will typically require synchronizing the image sensor and the image projector. Phase contrast modulation, full complex modulation, and analog modulation do not require synchronizing the image projector 23 and the sensor system 26. Phase contrast modulation and full complex modulation have the capability to produce phase information within the image. The image simulation system 20 can produce high contrast images and is more flexible than prior art system.
摘要翻译: 用于测试传感器系统26并用于训练图像传感器人员的图像模拟系统20,其中合成图像数据由场景发生器21产生并由图像投影仪23投影。图像投影仪23使用数字微镜器件阵列27来调制事件 能量和形象。 讨论了四种调制方案,包括数字脉宽调制,相位调制,全复合调制和模拟调制。 数字脉宽调制技术通常需要使图像传感器和图像投影仪同步。 相位调制,全复合调制和模拟调制不需要使图像投影仪23和传感器系统26同步。相位调制和全复合调制具有在图像内产生相位信息的能力。 图像模拟系统20可以产生高对比度图像,并且比现有技术的系统更灵活。
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2.
公开(公告)号:US5508841A
公开(公告)日:1996-04-16
申请号:US369979
申请日:1995-01-09
申请人: Tsen-Hwang Lin , James M. Florence , Michael Leddy , Mark Boysel
发明人: Tsen-Hwang Lin , James M. Florence , Michael Leddy , Mark Boysel
CPC分类号: G02B27/52 , G02B26/06 , G02B26/0841
摘要: A phase-contrast DMD based image system 36 for projecting an amplitude and phase modulated image. A flexure beam DMD array 34 is used to allow analog phase modulation of reflected light 38. The phase modulation is converted to amplitude modulation by the phase-contrast imaging optics including a phase plate 42. The resulting amplitude modulated wave is flicker-free and does not need to be synchronized to optical image sensors.
摘要翻译: 一种用于投影幅度和相位调制图像的基于相位差的基于DMD的图像系统36。 弯曲光束DMD阵列34用于允许反射光38的模拟相位调制。相位调制通过包括相位板42的相位差成像光学器件转换为幅度调制。所得到的幅度调制波是无闪烁的,并且 不需要与光学图像传感器同步。
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