Gaze tracking for region of interest coding in JPEG 2000
Current image coding systems such as JPEG are far away from the capability of the human perceptual system in that the encoding may not maximise the reconstruction quality of image contents. Humans are often concerned with the interpretability of the image and thus enhanced reconstruction quality in image contents would facilitate improved recognition performance. This paper addresses this issue by incorporating characteristics of the human perceptual system into an image coding system. This is achieved by analysing the spatial and temporal characteristics of the human visual attention system as recorded from an eye-tracking device at the encoding end. Human visual attention mechanisms direct the viewer's eye movements around the image to provide a sequence of fixations, which are analysed, clustered and classified into regions of interest (ROI). These ROIs are used to selectively encode and prioritise regions such that an improved image content recognition performance can be achieved.
Citation countsare sourced monthly fromand citation databases.
These databases contain citations from different subsets of available publications and different time periods and thus the citation count from each is usually different. Some works are not in either database and no count is displayed. Scopus includes citations from articles published in 1996 onwards, and Web of Science® generally from 1980 onwards.
Citations counts from theindexing service can be viewed at the linked Google Scholar™ search.
Full-text downloadsdisplays the total number of times this work’s files (e.g., a PDF) have been downloaded from QUT ePrints as well as the number of downloads in the previous 365 days. The count includes downloads for all files if a work has more than one.
|Item Type:||Journal Article|
|Keywords:||Eye tracking, Image coding, Importance map, JPEG 2000, Region of interest (ROI)|
|Divisions:||Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering|
|Copyright Owner:||Copyright 2006 Elsevier|
|Copyright Statement:||Reproduced in accordance with the copyright policy of the publisher.|
|Deposited On:||30 Oct 2007|
|Last Modified:||29 Feb 2012 23:22|
Repository Staff Only: item control page