Browse Prior Art Database

Consolidation of Video Data

IP.com Disclosure Number: IPCOM000090315D
Original Publication Date: 1969-Mar-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 31K

Publishing Venue

IBM

Related People

Howard, PH: AUTHOR

Abstract

Elemental areas containing digital video data obtained from scanning a pattern are grouped so as to reduce the data without substantially reducing the amount of information provided by the data. The areas are grouped into either cross-shaped regions A each containing five elemental areas, drawing 1, or regions B each containing eight elemental areas as in drawing 2. The data in each region is analyzed and represented as either a black bit or a white bit depending on how many of the elemental areas in the region contain black data bits. For example, if at least three of the five areas of a region A contain black bits, the region is represented as black.

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Consolidation of Video Data

Elemental areas containing digital video data obtained from scanning a pattern are grouped so as to reduce the data without substantially reducing the amount of information provided by the data. The areas are grouped into either cross-shaped regions A each containing five elemental areas, drawing 1, or regions B each containing eight elemental areas as in drawing 2. The data in each region is analyzed and represented as either a black bit or a white bit depending on how many of the elemental areas in the region contain black data bits. For example, if at least three of the five areas of a region A contain black bits, the region is represented as black.

The grouping of elemental areas is performed by any suitable apparatus. For example, the scanning of the pattern can be performed by a plurality of photosensitive devices covering the area array. The devices are grouped in accordance with the regions. Alternatively, the video data can be entered into a matrix store and the contents of the portions of the store corresponding to each region are analyzed together.

The principle involved is that adjacent regions in either the horizontal direction or the vertical direction, as seen in the drawings, are not aligned. This reduces the chances of losing important video information as the data is reduced and renders the information obtained largely independent of the position of the area array relative to the grouping apparatus.

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