Adeyemi Adekunle A, Barakat Neil, Darcie Thomas E
Department of Electrical and Computer Engineering, University of Victoria, Victoria, BC, Canada.
Opt Express. 2009 Feb 2;17(3):1831-43. doi: 10.1364/oe.17.001831.
In this paper, we present a method of using digital micro-mirror devices to dynamic range enhancement of a digital optical microscope images. Our adaptive feedback illumination control generates a high dynamic range image through an algorithm that combines the DMD-to-camera pixel geometrical mapping and a feedback operation. The feedback process automatically generates an illumination pattern in an iterative fashion that spatially modulates the DMD array elements on pixel-by-pixel level. Via experiment, we demonstrate a system that uses precise DMD control of the projector to enhance the dynamic range ideally by a factor of 573. Results are presented showing approximately 5 times the camera dynamic range, enabling visualization over a wide range of specimen characteristics.
在本文中，我们提出了一种利用数字微镜器件来增强数字光学显微镜图像动态范围的方法。我们的自适应反馈照明控制通过一种结合了数字微镜器件到相机像素几何映射和反馈操作的算法生成高动态范围图像。反馈过程以迭代方式自动生成照明图案，在逐像素级别上对数字微镜器件阵列元件进行空间调制。通过实验，我们展示了一个利用投影仪的精确数字微镜器件控制将动态范围理想地提高573倍的系统。给出的结果显示相机动态范围提高了约5倍，能够在广泛的样本特征范围内实现可视化。
