Complexity reduction of wavelet codecs through modified quality control

M.J.H. Loomans, P.H.N. With, de

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

1 Citation (Scopus)

Abstract

Integer-to-integer wavelets are employed for low-complexity image encoders in embedded applications and used in combination with wavelet coefficient coders, such as EZW, SPIHT, SPECK and TSSP. In scalable coders bitstream creation is computationally expensive when individual coefficients are manipulated. In this paper, we study two options that move the quality control to earlier stages in the encoding process to alleviate this complexity problem: (1) to stage one of the TSSP and (2) to the integer wavelet transform. By inserting special functions based on premature bit-plane dropping, we effectively implement a quality-control step prior to the coefficient coding. For a typical usage scenario with full HD images, with option (1) we achieve an improvement of the processing speed of TSSP by 28%, while retaining the original bitstream and thus the ratedistortion performance. Furthermore, we have found that option (2) is generically applicable to other bit-plane based codecs, while offering nearly the same processing speed.
Original languageEnglish
Title of host publicationProceedings of the 2013 International Conference on Image Processing (ICIP 2013) 15-18 September 2013, Melbourne
Place of PublicationMelbourne, Australia
PublisherInstitute of Electrical and Electronics Engineers
Pages1670-1674
DOIs
Publication statusPublished - 2013
Event20th IEEE International Conference on Image Processing (ICIP 2013) - Melbourne, Australia
Duration: 15 Sep 201318 Sep 2013
Conference number: 20

Conference

Conference20th IEEE International Conference on Image Processing (ICIP 2013)
Abbreviated titleICIP 2013
CountryAustralia
CityMelbourne
Period15/09/1318/09/13

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