High-speed parameterisable Hough transform using reconfigurable hardware
VIP '01 Proceedings of the Pan-Sydney area workshop on Visual information processing - Volume 11
Exploiting inherent parallelisms for accelerating linear Hough transform
IEEE Transactions on Image Processing
Resource-efficient FPGA architecture and implementation of hough transform
IEEE Transactions on Very Large Scale Integration (VLSI) Systems
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This paper applies the CORDIC algorithm to the Hough Transform. The CORDIC algorithm uses just adders and shifters to realize trigonometric function calculations, together with the multiplications needed in the Hough Transform. The pipelined CORDIC structure proposed in this paper can reach a high calculation speed using only adders, thus realizing the Hough Transform in real time, and more area efficient than a ROM and array-multiplier based implementation, capable of running at the same speed. For O''Gorman and Clowes''s modified Hough Transform, using two CORDIC units, the magnitude and angle of the gradient of the edge, and the $\rho, \theta$ of the Hough Transform can be calculated simultaneously.