TY - JOUR
T1 - Fast compression of computer-generated holographic images based on a GPU-accelerated skip-dimension vector quantization method
AU - Lam, Y. K.
AU - Situ, W. C.
AU - Tsang, P. W M
PY - 2013/5
Y1 - 2013/5
N2 - A method for fast and low bit-rate compression of digital holograms based on a new vector quantization (VQ) method known as the skip-dimension VQ (SDVQ) is proposed. Briefly, a complex hologram is converted into a real off-axis hologram, and partitioned into a set of image vectors. The image vectors are passed into a graphic processing unit (GPU), and compressed through SDVQ into a set of code indices considerably smaller in data size than the source hologram. Experimental evaluation reveals that our scheme is capable of compressing a digital hologram to a compression ratio of over 500 times, in approximately 20-22 ms. © 2013 Chinese Optics Letters.
AB - A method for fast and low bit-rate compression of digital holograms based on a new vector quantization (VQ) method known as the skip-dimension VQ (SDVQ) is proposed. Briefly, a complex hologram is converted into a real off-axis hologram, and partitioned into a set of image vectors. The image vectors are passed into a graphic processing unit (GPU), and compressed through SDVQ into a set of code indices considerably smaller in data size than the source hologram. Experimental evaluation reveals that our scheme is capable of compressing a digital hologram to a compression ratio of over 500 times, in approximately 20-22 ms. © 2013 Chinese Optics Letters.
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U2 - 10.3788/COL201311.050901
DO - 10.3788/COL201311.050901
M3 - RGC 21 - Publication in refereed journal
SN - 1671-7694
VL - 11
JO - Chinese Optics Letters
JF - Chinese Optics Letters
IS - 5
M1 - 50901
ER -