Fast compression of computer-generated holographic images based on a GPU-accelerated skip-dimension vector quantization method

• 来源期刊: 中国光学快报（英文版）
• 年，卷（期）: 2013,（5）
• 页码范围: 28-32
• 页数: 5页
• 语种: 英文
• DOI: 10.3788/COL201311.050901

摘要

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.