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首页> 外文期刊>IEEE Journal of Solid-State Circuits >An image processing IC for backprojection and spatial histogramming in a pipelined array
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An image processing IC for backprojection and spatial histogramming in a pipelined array

机译：用于流水线阵列中的反投影和空间直方图的图像处理IC

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摘要

The first VLSI digital signal processor that performs both high-precision image backprojection and spatial histogram calculations at raster-scan rates as high as 30 MHz is described. Realized in 1 mu m CMOS technology, this 13.3 mm*13.3 mm chip is designed to handle images as large as 1024*1024 12 b pixels. Loadable coefficients and a unified architecture allow this IC to be used with a variety of computed-tomography scanners for image reconstructions, including fan- and parallel-beam reconstruction. This chip also computes the forward Radon transform, which is a spatial histogram, permitting it to be used for iterative reconstruction algorithms. The bit lengths in the fixed-point architecture assure 12 b reconstruction accuracy.
机译：描述了第一VLSI数字信号处理器，该处理器以高达30 MHz的光栅扫描速率执行高精度图像反投影和空间直方图计算。这款13.3 mm * 13.3 mm芯片采用1μmCMOS技术实现，旨在处理高达1024 * 1024 12 b像素的图像。可加载系数和统一的体系结构使该IC可以与各种计算机断层扫描仪一起使用，以进行图像重建，包括扇形和平行束重建。该芯片还计算正向Radon变换，它是一个空间直方图，允许将其用于迭代重建算法。定点体系结构中的位长度确保了12b的重建精度。

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