7 May 1997 Layered compression scheme for multicasting medical images across heterogeneous networks
Author Affiliations +
Proceedings Volume 3031, Medical Imaging 1997: Image Display; (1997); doi: 10.1117/12.273904
Event: Medical Imaging 1997, 1997, Newport Beach, CA, United States
Abstract
In this paper we evaluate a layered coding technique based on subband coding for the purpose of encoding medical images for realtime transmission over heterogeneous networks. The objective of this research is to support a medical conference in a heterogeneous networking scenario. The scalable coding scheme under study in this paper generates a single bit-stream, from which a number of sub-streams of varying bit-rates can be extracted. This makes it possible to support a multicast transmission scenario, where the different receivers are capable of receiving different bit- rate streams from the same source, in an efficient and scalable way. The multirate property also allows us to provide graceful degradation to loss when used over networks which support multiple priorities. This paper evaluates the quality of the video images encoded with the layered encoding technique at different bit-rates in terms of the peak signal to noise ratio for cine-angiogram video. It also describes experiments with the transmission of the video across an asynchronous transfer mode (ATM) local area network, using two layer encoded video stream, and assigning different network service classes to the two layers. We study how the quality of the reconstructed signal changes with the ratio of the bit-rates of the high and low priority layers, for various levels of congestion in the ATM network.
© (1997) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Anindo Banerjea, Wai-tian Tan, Avideh Zakhor, "Layered compression scheme for multicasting medical images across heterogeneous networks", Proc. SPIE 3031, Medical Imaging 1997: Image Display, (7 May 1997); doi: 10.1117/12.273904; https://doi.org/10.1117/12.273904
PROCEEDINGS
12 PAGES


SHARE
KEYWORDS
Video

Computer programming

Receivers

Medical imaging

Quantization

Scalable video coding

Signal attenuation

RELATED CONTENT

Design of wavelet-based scalable video codec
Proceedings of SPIE (April 19 2000)
Video streaming with SP and SI frames
Proceedings of SPIE (June 24 2005)
Scalable high-definition video coding
Proceedings of SPIE (January 09 1998)
Octree-based hierarchical encoding for video conferencing
Proceedings of SPIE (December 14 1998)

Back to Top