Title :
A transform domain approach in blocking effect detection
Author :
Triantafyllidis, G.A. ; Tzovaras, D. ; Strinztis, M.G.
Author_Institution :
Informatics & Telematics Inst., Thessaloniki, Greece
fDate :
6/23/1905 12:00:00 AM
Abstract :
A novel frequency domain technique for image blocking artifact detection is presented in this paper. The algorithm detects the regions of the image which present visible blocking artifacts. This detection is performed in the frequency domain and uses the estimated relative quantization error calculated when the DCT coefficients are modeled by a Laplacian probability function. Experimental results illustrating the performance of the proposed method are presented and evaluated
Keywords :
data compression; discrete cosine transforms; frequency-domain analysis; image coding; quantisation (signal); DCT coefficients; Laplacian probability function; frequency domain technique; image blocking artifact detection algorithm; image compression; quantization error; transform domain; Decoding; Discrete cosine transforms; Frequency domain analysis; Image reconstruction; Informatics; Laplace equations; Pixel; Quantization; Telematics; Transform coding;
Conference_Titel :
Electronics, Circuits and Systems, 2001. ICECS 2001. The 8th IEEE International Conference on
Print_ISBN :
0-7803-7057-0
DOI :
10.1109/ICECS.2001.957452
