Abstract | ||
---|---|---|
Three dimensional (3D) integral imaging is a method that allows the display of full colour images with continuous parallax
within a wide viewing zone. Due to the significant quantity of data required to represent a captured 3D integral image with
high resolution, image compression becomes mandatory for the storage and transmission of integral images. This paper investigates
the use of 2D discrete wavelet transform (2D-DWT) for the compression of omnidirectional 3D integral images (OII). The method
requires the extraction of different viewpoint images from the integral image. A single viewpoint image is constructed by
extracting one pixel from each microlens, then each viewpoint image is decomposed using a 2D-DWT. The resulting array of coefficients
contains several frequency bands. The lower frequency bands of the viewpoint images are assembled and compressed using a 3D
discrete cosine transform (3D-DCT) followed by Huffman coding. Whereas, the remaining higher bands are fed directly into a
quantisation process followed by arithmetic coding. Simulations are performed on a set of several grey level 3D OII using
a uniform scalar quantizer with deadzone. It was found that the algorithm achieves better rate-distortion performance and
reconstructs the images with much better image quality at very low bit rates than previously reported 3D-DCT-based scheme. |
Year | DOI | Venue |
---|---|---|
2008 | 10.1007/s11760-007-0044-1 | Signal, Image and Video Processing |
Keywords | Field | DocType |
image compression · dwt · integral 3d imaging · oii data · viewpoint images · deadzone quantization,huffman codes,arithmetic coding,compression algorithm,discrete cosine transform,three dimensional,image compression,image quality,3d imaging,discrete wavelet transform | Computer vision,Integral imaging,Discrete cosine transform,Image processing,Artificial intelligence,Discrete wavelet transform,Data compression,Image resolution,Image compression,Mathematics,Wavelet | Journal |
Volume | Issue | ISSN |
2 | 2 | 1863-1711 |
Citations | PageRank | References |
10 | 0.84 | 6 |
Authors | ||
2 |
Name | Order | Citations | PageRank |
---|---|---|---|
Amar Aggoun | 1 | 115 | 21.34 |
Meriem Mazri | 2 | 13 | 1.31 |