ファクシミリ放送における階層的画像伝送法の一検討 : 情報ディスプレイ,無線・光伝送,画像通信システム,画像応用

概要

論文の詳細を見る
NHK Science and Technical Research Laboratories are studying an advanced facsimile broadcasting system using the 12 GHz band satellite television broadcasting system. In this paper, a hierarchical coding and transmission method suitable for the facsimile broadcasting system is proposed. The characteristics of this method are as follows: - Facsimile picture is composed of the standard resolution(8 dots/mm) image of A4 size and the supplenmentary images, which make up high resolution(16 dots/mm) image of the minute image segment and the half - tone image segment on the standard resolution image. - The supplementary images are coded by the conventional MH or MR coding scheme, which can be decoded very easily in the facsimile broadcasting terminal. - In comparison with the coded data amount when the same facsimile program is transmitted at a resolution of 8 dots/mm and 16 dots/mm by MR coding, the transmission efficiency is 22% better.
社団法人映像情報メディア学会の論文
1992-01-31