研究目的
To design a high-speed, energy-efficient approximate multiplier for digital signal processing and image processing applications by rounding the values of numbers to the nearest power of two.
研究成果
The proposed ROBA multiplier, based on rounding operands to the nearest power of two, offers high speed and energy efficiency for digital signal and image processing applications. It demonstrates improved performance over existing multipliers, especially when the adder part is modified to reduce delay.
研究不足
The study focuses on the efficiency and speed of the ROBA multiplier but does not extensively explore its accuracy in all possible applications or its performance under varying conditions.
1：Experimental Design and Method Selection:
The study focuses on implementing a rounding-based approximate (ROBA) multiplier by modifying existing multiplication methods to improve speed and efficiency.
2：Sample Selection and Data Sources:
The multiplier is tested in image processing applications for smoothening and sharpening.
3：List of Experimental Equipment and Materials:
FPGA SPARTAN kit is used for hardware implementation.
4：Experimental Procedures and Operational Workflow:
The multiplier's efficiency is analyzed by comparing its delay with existing multipliers and applying it in image processing.
5：Data Analysis Methods:
The performance is evaluated based on speed, area, and complexity, with comparisons made to accurate multipliers.
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