On the implementation of the gamma function for image correction on a endoscopic camera

Mostafa, Sheikh Shanawaz; Sousa, L. Natercia; Ferreira, Nuno Fábio; Sousa, Ricardo M.; Santos, João; Dias, F. Morgado; Wany, Martin

http://hdl.handle.net/10400.13/5036

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Authors

Mostafa, Sheikh Shanawaz

Abstract(s)

This paper describes part of project that implemented the image processing of a CMOS sensor for endoscopic purposes. The sensor is a small sized device of 1x1mm2 and the image processing has been done inside a FPGA. This part of the work describes the implementation of the Gamma function with a balance between the resources needed and the accuracy. A linear piecewise solution was used that stores the values for 31 gamma functions with values ranging from 1 to 4 with 0.1 steps. The solution developed is 10 bit based, was coded in VHDL and is implemented in a Spartan 6 FPGA. The results show that it is an accurate solution that has a small footprint in terms of used resources.

Keywords

Gamma function FPGA VHDL Endoscopy . Faculdade de Ciências Exatas e da Engenharia

URI

http://hdl.handle.net/10400.13/5036

Citation

Mostafa, S. S., Sousa, L. N., Ferreira, N. F., Sousa, R. M., Santos, J., Morgado-Dias, F., & Wany, M. (2016, August). On the implementation of the gamma function for image correction on a endoscopic camera. In 2016 3rd International Conference on Electronic Design (ICED) (pp. 470-475). IEEE.