A high dynamic range camera with a non-destructive readout complementary metal–oxide–semiconductor sensor
A high dynamic range camera with a non-destructive readout complementary metal–oxide–semiconductor sensor
复制标题
具有无损读出互补金属氧化物半导体传感器的高动态范围相机
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
R. van Silfhout
中科院分区：
文献类型：
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作者：
P. Scott;A. Kachatkou;A. L. Frost;R. van Silfhout
我们报告的两个图像处理算法，利用非破坏性读出（NDR）成像仪，这是连接到一个定制的嵌入式系统的硬件实现。嵌入式系统上的可重构逻辑器件用于控制成像器，捕获原始NDR图像数据，并执行两种不同的图像处理算法：相关双采样（CDS）和“上升斜坡”图像重建。在嵌入式系统上实现这两种重建算法需要传输的数据比所有原始图像数据的总和少，从而提高了帧速率。“上升斜坡”图像具有比CDS图像更高的上级质量，但以较低的帧速率为代价。
We report on a hardware-based implementation of two image processing algorithms that take advantage of a non-destructive readout (NDR) imager, which is connected to a custom embedded system. A reconfigurable logic device on the embedded system is used to control the imager, capture raw NDR image data and perform two different image processing algorithms: correlated double sampling (CDS) and ‘up-the-ramp’ image reconstruction. Implementing both of these reconstruction algorithms on the embedded system requires less data to be transmitted than the total of all of the raw image data, thus improving the frame rate. ‘Up-the-ramp’ images possess superior quality to CDS images, at the expense of a lower frame rate.