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Method-of-processing-sub-images-of-an-image-field

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Method of processing sub-images of an image field

Details

Inventors: Rawlings, Keith C.;
Assignee: Smiths Industries Public Limited Company (London, GB2)
Primary Examiner: Harkcom; Gary V.
Assistant Examiner: Jaffe; Michael A.
Attorney, Agent or Firm: Pollock, VandeSande and Priddy

An image processing system has sixteen processing assemblies provided by transputers which each have a memory and a processor. An infra-red television camera supplies signals representing different areas of the field of view to respective different ones of the processing assemblies. The assemblies also receive external signals from other sources and are interconnected with one another by a line which enables synchronization between the assemblies. Each processor processes only that information in its memory and provides output signals representative of the respective area of the field of view.

DETAILED DESCRIPTION What I claim is: 1.
A method of image processing comprising the steps of: viewing an image field; dividing the image field into a plurality of sub-images; determining in real time an amount of processing memory required for each sub-image; supplying image information in respect of different sub-images directly to respective different ones of a plurality of memory units in respective processing assemblies independently of others of the assemblies, those sub-images requiring increased processing memory being supplied to a greater number of processing assemblies than the processing assemblies that are supplied with others of the sub-images requiring lesser processing memory; causing said processing assemblies to perform independent processing operations on information in each said memory unit; and providing respective independent output signals in respect of the different sub-images of the image field directly to utilization means independently of others of the assemblies.
2.
A method according to claim 1, including the step of supplying said output signals to display means to provide a display representation of the image information.

Description:
BACKGROUND OF THE INVENTION This invention relates to information processing systems and methods.
Information processing systems can be used for many different applications such as voice recognition, image enhancement or other modification, image recognition, image marking or labelling, image storage and so on.
Conventionally, the information is stored in a contiguous block of memory (frame store) and a processor receives signals from each element of that memory for use in the image processing.
For a typical image input comprising 512 lines each of 512 pixels and a frame rate of 25 frames/second this gives a data input of 512.
times.
512.
times.
25=6,553,600 bytes/second.
This input rate may be too high to be processed in real time by software, requiring software processing in less than real time or the need for additional processing capacity

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