4.4 Article

A Power-Efficient Multichannel Low-Pass Filter Based on the Cascaded Multiple Accumulate Finite Impulse Response (CMFIR) Structure for Digital Image Processing

期刊

CIRCUITS SYSTEMS AND SIGNAL PROCESSING
卷 41, 期 7, 页码 3864-3881

出版社

SPRINGER BIRKHAUSER
DOI: 10.1007/s00034-022-01960-5

关键词

Linear time-invariant system; Cascaded multiple accumulate finite impulse response; Cascaded integrator comb; Multiple accumulate unit; Intensity

资金

  1. Department of Computer Science Engineering, Techno India NJR Institute of Technology and Chair of Electrical Engineering Fundamentals, Wroclaw University of Science and Technology

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The author presents a power-efficient multichannel low-pass filter based on the CMFIR structure, which is created using the outputs of a CIC and a MAC low-pass filter. This filter provides an efficient solution for sample rate conversion and utilizes genetic algorithm for resource utilization and power consumption efficiency optimization.
The author offers a power-efficient multichannel low-pass filter for digital image processing based on the cascade multiple accumulate finite impulse response (CMFIR) structure in this study. The CMFIR filter was created using the outputs of a linear time-invariant system (LTI), which was built using a cascaded integrator comb (CIC) and a MAC low-pass filter. The sample rate convertor based on CIC filters effectively conducts decimation or interpolation. The sample rate convertor with the CIC filter can only accommodate narrowband transmissions and so cannot be utilized for wideband signals. The MAC architecture-based sample rate convertor is a good solution for high-bandwidth signals, but it uses more resources like registers and flip-flops, which increases power consumption. Here, the CMFIR low-pass filter acts as an interpolator, introducing a sample to boost the image's resolution. CMFIR is a useful tool for addressing the issue of aliasing during sampling. In addition, the genetic algorithm was used to increase the filter's resource utilization and power consumption efficiency.

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