Title :
IDCT design for JPEG decompression in an electronic ballot box
Author :
Jacobi, Ricardo Pezzuol ; De Carvalho, José Porfirio
Author_Institution :
Dept. de Ciencia da Computacao, Univ. de Brasilia, Brazil
Abstract :
This paper describes the design of a inverse discrete cosine transform (IDCT) to decompress JPEG images. The target application is the decompression of monocromatic photos of candidates in the Brazilian Electronic Ballot Box. The goals is to develop a constrained implementation which targets a XC4010 FPGA. It is based on the application of two 1-D IDCTs using a local memory as buffer. The design resulted in around two hundred logic cells for a two-pass IDCT, which was implemented and tested in the Xilinx demo board
Keywords :
computer architecture; data compression; discrete cosine transforms; image coding; image processing equipment; logic design; Electronic Ballot; IDCT; JPEG images decompression; XC401 FPGA; Xilinx demo board; buffer; monocromatic photos; Color; Decoding; Discrete cosine transforms; Frequency; Image coding; Jacobian matrices; Matrix converters; Pixel; Quantization; Transform coding;
Conference_Titel :
Integrated Circuits and Systems Design, 2001, 14th Symposium on.
Conference_Location :
Pirenopolis
Print_ISBN :
0-7695-1333-6
DOI :
10.1109/SBCCI.2001.953034
