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Complexity Theory
Computer Model
Difference Operator
Dual Space
Functional Recovery
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A PowerArea Efficient Geometry Engine With LowComplexity Subdivision Algorithm for 3D Graphics System
A PowerArea Efficient Geometry Engine With LowComplexity Subdivision Algorithm for 3D Graphics System,10.1109/TCSI.2011.2123430,IEEE Transactions o
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A PowerArea Efficient Geometry Engine With LowComplexity Subdivision Algorithm for 3D Graphics System
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LanDa Van
,
TenYao Sheu
In this paper, a powerarea efficient geometry engine (GE) using a lowcomplexity threelevel subdivision algorithm is presented. The proposed subdivision algorithm and architecture is capable of providing low complexity, high powerarea efficiency, scalable and nearPhong shading quality. The forward difference, edge function recovery,
dual space
subdivision, triangle filtering, and triangle setup coefficient sharing schemes are employed to al leviate the redundant computation for the proposed algorithm. Ac cording to the lowcomplexity subdivision algorithm, one recon figurable datapath is proposed to save the area since the same set of processing elements (PE) is reused for different operations of GE. Compared with the conventional subdivision algorithm, the proposed subdivision algorithm reduces the number of memory/ register accesses for subdivision by 40% and 60.32% for level1 and level2 subdivision, respectively. In terms of the number of multiplications for transforms, the reduction can be attained by 27.5% and 60.27% for level1 and level2 subdivision, respectively. From the implementation results, the proposed GE can achieve the powerareaefficiencyof518.8 forlevel1 subdivision.
Journal:
IEEE Transactions on Circuits and Systems Iregular Papers  IEEE TRANS CIRCUIT SYSTI
, vol. 58, no. 9, pp. 22112224, 2011
DOI:
10.1109/TCSI.2011.2123430
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