Accession Number:

ADA038696

Title:

Image Transmission and Coding Based on Human Vision.

Descriptive Note:

Technical rept.,

Corporate Author:

UTAH UNIV SALT LAKE CITY DEPT OF COMPUTER SCIENCE

Personal Author(s):

Report Date:

1975-09-01

Pagination or Media Count:

88.0

Abstract:

In recent years more and more attention was paid to digital image processing especially as a result of the development of highly efficient algorithms and also because of technologically better facilities. Concurrently attempts were made to find a mathematical model for human vision to achieve better understanding about that mechanism. Some of the image processing problems that were and are tackled are image enhancement, bandwidth reduction, image transmission, etc. Unfortunately very few have taken the mechanism of the human vision into consideration in their processes. This work is an attempt to incorporate the model of human vision in image transmission and coding. An optimal system is developed to transmit a digital image over a noisy channel. The same system is used for image bandwidth reduction utilizing a simple coding scheme which is not based on the knowledge of the statistics of the image in question. The improvement of the optimal system over other similar systems are demonstrated and provide explanation for situations where other systems failed. The model used for transmitting images can be also interpreted as the model of the visual mechanism itself and thus shed some light on human vision from a new interesting aspect.

Subject Categories:

  • Bionics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE