Enhanced three-dimensional discrete cosine transform based compression method for integral images by adaptive three-dimensional block construction
Applied Optics, Vol. 49, Issue 30, pp. 5728-5735 (2010)
http://dx.doi.org/10.1364/AO.49.005728
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Abstract
In this paper, we propose an efficient compression method for integral images based on three- dimensional discrete cosine transform (3D-DCT). Even though the existing 3D-DCT based techniques are efficient, they may not be optimized to the characteristics of integral images, such as applying a fixed size block construction and a fixed scanning in placing 2D blocks to construct a 3D block. Therefore, we propose a variable size block construction and a scanning method adaptive to characteristics of integral images, which are realized by adaptive 3D block modes. Experimental results show that the proposed method gives significant improvement in coding efficiency. In particular, at the high bit rates, the proposed method is more improved, since overhead bits for signaling of the 3D block modes take a smaller part of the total bits.
© 2010 Optical Society of America
OCIS Codes
(100.6890) Image processing : Three-dimensional image processing
(110.6880) Imaging systems : Three-dimensional image acquisition
ToC Category:
Image Processing
History
Original Manuscript: August 26, 2010
Revised Manuscript: August 26, 2010
Manuscript Accepted: September 8, 2010
Published: October 12, 2010
Citation
Ju-Il Jeon and Hyun-Soo Kang, "Enhanced three-dimensional discrete cosine transform based compression method for integral images by adaptive three-dimensional block construction," Appl. Opt. 49, 5728-5735 (2010)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-49-30-5728
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