A new method for data integrity on ATM protocol is proposed. The algorithm represents image data via a new transform called the Mojette. The transform and its inverse are in order of complexity of the Fast Fourier Transform. An Object Oriented Model for image and sequence are presented. The method is tested on videoendoscopic sequences. This source-channel coding avoid any additional protocol over ATM to secure data and provide real-time possibilities.(TCP) over the classical Internet Protocol (IP). As a matter of fact, the IP encapsulation over ATM is the most common way of using ATM today with the LAN Emulation (LANE) where Ethernet or Token Ring frames are converted into ATM cells. 200 SPIE Vol. 3035 • 0277-786X/971$10.00 Downloaded From: http://proceedings.spiedigitallibrary.org/ on 06/29/2016 Terms of Use: http://spiedigitallibrary.org/ss/TermsOfUse.aspx
The Asynchronous Transfer Mode (ATM) appears as the standard protocol for image and video transmision. There is virtually no bandwidth limitations neither a restricted size of operating area. However, the main problem stands in the non secured transmission when ATM native applications are implemented. This induced a new way of encoding images where the redundancy (classically managed by the network protocol) is generated into the CoDec. In this paper, we present the Mojette transform that generates the redundancy at the higher level of the coder in order to safely transmit image data. Block and wavelet implementations associated with the Mojette transform are presented and compared not only from the coder point of view but for the source and the channel characteristics. For this specific case we also present the asynchronous Mojette reconstruction. An adapted object oriented model has been developped accordingly.
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