CAI Ze-feng;LV Xiao-cheng;ZHENG Xue-ren. Design of Image Scaling Engine Based on Different Interpolation Algorithms in Rows and Columns[J]. 液晶与显示, 2009,24(04): 597-601
CAI Ze-feng;LV Xiao-cheng;ZHENG Xue-ren. Design of Image Scaling Engine Based on Different Interpolation Algorithms in Rows and Columns[J]. 液晶与显示, 2009,24(04): 597-601DOI:
This paper presents a design method of image scaling engine based on different interpolation in rows and columns for the hardware complexity reduction of LCD scaler and the image quality improvement of the LCD display. Based on the introduction of 4-points cubic convolution and linear algorithm
the system architecture of scaling engine is presented. In this architecture
4-point cubic convolution algorithm is used in the horizontal interpolation
and 2-point optimized linear algorithm is used in the vertical interpolation. Compared to the design based on Bicubic algorithm
nine multipliers are saved. It is obviously that the hardware complexity is reduced. Then
the scaling unit and corresponding filter is specially recommended. The design is mapped into a FPGA chip
and the FPGA verification results show that the design is feasible.
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references
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