Remote Display of Large Raster Images Using JPEG2000 and the Rectangular FishEye-View
نویسندگان
چکیده
In mobile environments, the size of large raster images often exceeds the display area on small output devices. The rectangular FishEye-View as a Focus&Context technique can be used to provide an interactive view of the image without zooming and panning. This paper presents the application of JPEG2000 for the demand-driven transmission of image data optimized for this display technique. The proposed method is fully compliant to the JPEG2000 standard and enhances its static concept for regions of interest to be fully dynamic. Due to limited processing power at client side almost all calculations belonging to the dynamic RoI-coding are executed at server side.
منابع مشابه
Interactive Focus and Context Display of Large Raster Images
This paper presents the RECTANGULAR FISHEYE VIEW, an interactive focus–and–context presentation technique for large raster images on mobile computers with small displays and limited processing power. Both the viewing of locally available images and the demand–driven display and transmission of remotely– stored images are supported by the technique. The underlying geometry calculations are expla...
متن کاملGeneral rectangular fisheye views for 2D graphics
This paper describes the RECTANGULAR FISHEYE VIEW for the combined presentation of 2D raster images, 2D vector graphics and text. A detailed presentation of the area of highest user interest (the focus) is integrated into a lower-detail context display providing an overview. Screen space is saved by downscaling (distorting) the context. The geometric layout of the view is assembled using rectan...
متن کاملThe Rectangular Fish Eye View as an E cient
With the advances of mobile computing technology, the users of mobile hardware expect the same service as users of stationary computers do. Access to large images over the Internet poses two problems to users of wireless data communication devices and mobile computers: low transmission bandwidth and small screen space. In this paper, an integrated image transmission and display method is propos...
متن کاملFlexible Embedded Image Communication using Levels of Detail and Regions of Interest
In this paper, we introduce a formal model which describes consistently levels of detail and regions of interest for the embedded coding and progressive transmission of raster images. This model serves as the foundation of an image communication system which supports the progressive, redundancy-free transmission of multiple, possibly overlapping regions of interest in an image. We propose the r...
متن کاملSingular Value Decomposition based Steganography Technique for JPEG2000 Compressed Images
In this paper, a steganography technique for JPEG2000 compressed images using singular value decomposition in wavelet transform domain is proposed. In this technique, DWT is applied on the cover image to get wavelet coefficients and SVD is applied on these wavelet coefficients to get the singular values. Then secret data is embedded into these singular values using scaling factor. Different com...
متن کامل