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Image Processing Machines in Japan Disclosure Number: IPCOM000131580D
Original Publication Date: 1983-Jan-01
Included in the Prior Art Database: 2005-Nov-11
Document File: 15 page(s) / 51K

Publishing Venue

Software Patent Institute

Related People

Masatsugu Kidode: AUTHOR [+3]


What is required to implement , image processing and analysis? Some suggestions are given here along -with the latest applications in Japan -- from cancer screening to cucumber sorting.

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Image Processing Machines in Japan

Masatsugu Kidode,

Toshiba Corporation, Japan

What is required to implement , image processing and analysis? Some suggestions are given here along -with the latest applications in Japan -- from cancer screening to cucumber sorting.

In Japan, as well as in the US and European countries, pattern recognition machines, such as the optical character reader, speech recognizes, and image analysis equipment, are either in the prototype stage or are actually being used. Several machines are now commercially available for character and speech recognition, but a newer, farther reaching aspect of pattern recognition devices is the development of machines for digital image processing and analysis.~~3 Much effort has been expended in research and development on special image 1/0 devices, filing and storage units, and high-performance processors for image manipulations. Medical diagnosis, remote sensing, and industrial automation are only a few of the fields that now benefit from the use of these devices. In short, digital image processing techniques are no longer outside the realm of real-world applications.

Those who desire an image processing capability face a number of initial problems, however. Before implementing the hardware needed, several questions must be answered, such as what kind of hardware is available to meet the requirements and, if general-purpose computers are being used, what type of image processing is least expensive to implement. Since these concerns are an integral part of image processing implementation, I will briefly discuss them before surveying hardware developments in Japan. s

Selecting hardware for image processing

Digital image processing and analysis can be performed on anything from general-purpose computers to specially tailored hardware. However, conventional general-purpose digital computers have proved uneconomical in performing even relatively simple local par allel operations -- and image operations are usually highly parallel. Computers based on the so- called von Neumann architecture have a sequential control structure in which programs and data are stored in the same memory unit and all operations are serially executed. Consequently, image operations require a large amount of computing time and result in high computing costs. Also, two-dimensional image data arrays require large amounts of data storage and often exceed the main memory capacity. As a result, the overhead time required to transfer image data between the main memory and secondary storage...