Design and Performance Analysis of an 8-3 Approximate Compressor-Based Multiplier for Image Blending Application.
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| Title: | Design and Performance Analysis of an 8-3 Approximate Compressor-Based Multiplier for Image Blending Application. |
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| Authors: | Gupta, Sanjiv Kumar1 (AUTHOR) sanjiv.2019rel04@mnnit.ac.in, Dhawan, Amit1 (AUTHOR) dhawan@mnnit.ac.in, Tiwari, Manish1 (AUTHOR) mtiwari@mnnit.ac.in, Jha, Sumit Kumar1 (AUTHOR) sumit-k@mnnit.ac.in |
| Source: | IETE Journal of Research. Jul2025, Vol. 71 Issue 7, p2441-2452. 12p. |
| Subjects: | Computer arithmetic, Image fusion, Approximation algorithms, Computer performance |
| Abstract: | The need for energy-efficient computer arithmetic systems is growing day by day, and approximate computing is crucial to their design in terms of delay, power, and area for error-resilient systems. This paper introduces a new 3-bit approximate adder, followed by the proposal of a 4-2 approximate compressor using this approximate adder. Subsequently, two 8-3 approximate compressors are designed with the proposed 4-2 approximate compressor and OR-based logic. Finally, two 8-bit approximate Dadda multipliers and higher bit approximate multipliers are designed using the proposed 8-3 approximate compressors. The proposed 8-bit multiplier with the lowest dissipation provides improvements in PADP (power-area-delay product) and ADP (area-delay product) of 86% and 68.25%, respectively, when compared to the exact multiplier. The proposed multiplier's efficacy is assessed in an image-blending application, yielding blended images with average high structural similarity. According to extensive simulation data and figure of merit (FoM), the proposed multipliers architectures are a better option for error-resilient systems than the reported approximate multipliers. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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