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Noise reduction for digital holograms in a discrete cosine transform (DCT) domain
digital hologram noise reduction discrete cosine transform holographic reconstruction
2011/5/9
This paper presents a method for reducing noise in a digital hologram, which occurs during
acquisition. The algorithm proposed initially transforms a digital hologram into frequency-domain
data thro...
Macroblock-Level Adaptive Scan Scheme for Discrete Cosine Transform Coefficients
Macroblock-Level Discrete Cosine Transform Coefficients
2010/12/17
Discrete Cosine Transform (DCT) has been widely used in image/video coding systems, where zigzag scan is usually employed for DCT coefficient organization. However, due to local
diversity of predicti...
HIGH-ACCURACY AND LOW-COMPLEXITY FIXED-POINT INVERSE DISCRETE COSINE TRANSFORM BASED ON AAN’S FAST ALGORTIHM
HIGH-ACCURACY LOW-COMPLEXITY FIXED-POINT DISCRETE COSINE TRANSFORM AAN’S FAST ALGORTIHM
2010/12/17
In this paper, a high accuracy and low-complexity fixed-point inverse discrete cosine transform (IDCT) based on AAN’s fast algorithm is proposed for the approximation of the
real IDCT. The proposed t...