in 0.033s at 4k X 4k

Image processor links to host processor via Multibus and Q-bus

An image processor and colour graphic controller designed to capture and process a video image in 0.033s has been released by Imaging Technology Inc. The II’-512 connects to a host processor through either Multibus or Qbus interfaces.

The system can store images at resolutions of up to 4096 x 4096 X 8 bits/pixels. It displays a viewing window of 512 X 512 X 8 pixels.

Each frame buffer, an FB 512, stores a 512 x 512 pixel image. Each pixel consists of 8 bits of data. The FB 512 acts both as a memory module and as a controller of pixel scroll, pan, write mask and a zoom timction up to twice the original size.

Four display channels can be supported, each one consisting of from one to 64 memory modules.

The analogue processor in the system digitizes a video frame in 0.033s, says UK distributor, Data Translation. Binary image data is stored in the FB-512 modules. A data

register transfers information to the host processor at 1.2 Mbyte/s. A pipeline ALU can be added to the system to perform real-time image convolutions, averaging, summation or subtraction.

The analogue processor also converts digital data into video signals to drive standard monochrome or RGB colour monitors.

Individual pixels in the FB-512 frame are randomly addressable by the host processor. CPU pixel read/ write access to the memory display takes 800 ns, says Data Translation.

Density is 512 pixels/line and 256 displayed colours. Suggested applica- tions include image analysis, medical and thermal imaging, industrial radiography, robot vision, tele- conferencing, tricharacter analysis and low-light image analysis. (Data Translation Ltd, 430 Bath Road, Slough, Berks SLl 6BB, UK. Tel: (06286) 3142. Telex: 849862)

Graph kit puts waves on pen recorders High speed digital waveform capture and display to conventional pen recorders is offered by a range of graphing systems from Gould Instru- ments. The company is using its own digital storage oscilloscopes to capture and digitize the waveform and their Brynas X-Y pen plotter to provide hard copy.

The graphic systems can plot waveforms with bandwidths of up to

200 kHz. Rise/fall times are down to 800 ns. The oscilloscope also provides display of the stored or real-time waveform, pretrigger viewing and selective plotting based on triggered events. All interfaces and connections are integrally supplied.

There are versions of the graphing system. GGSl with OS4200 oscillo scope proving 800 kHz sampling and X-Y display costs g3830 while GGS2

Digital disc uses 200 Mbyte of virtual image storage for video images High resolution images can be viewed at most video devices’ realtime data transfer rates for the first time, according to Gould. Now a digital disc can record and playback at 30 frame/s.

Using 200 Mbyte of virtual image storage, the ‘Real-time digital disk can record and play up to 800 images. Gould is planning applications in fluoroscopy, angiography, CT scann- ing, seismic data analysis, animation, modelling, structure analysis and nondestructive testing.

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The system consists of

300 Mbyte Winchester disc two hex board set controllers Gould’s IP8500, 8400 and 7400 image processors; linked to one of the hex boards.

The controller can handle up to four disc drives and multiple discs can be cascaded to extend run times or storage capaacity. The disc can be formatted dynamically as 800 virtual 256 kbyte cylinders, 1600 virtual 128 kbyte cylinders or 3200 virtual 64 kbyte cylinders.

Each image’s instruction includes a run format allowing the user to move a cylinder, an image, or to move between discs.

The system interface allows the storage of data in up to a 4096 X 4096 coordinate system with automatic tile switching. It also gives an optional sunsample from the display. This is every other pixel on every other line (1:2 ratio) or every fourth pixel on every fourth line (1:4 ratio). (Gould Inc., DeAnza imaging and graphics division, 1870 Lundy Avenue, San Jose, CA 95131, USA. Tel: (408) 263 7155)

with OS4020 scope with 2 MHZ sampling and a 10 MHz switched real-time mode for direct viewing costs E3965. (Gould Instruments Ltd, Roebuck Road, Hainault, nford, Essex ZG6 3UE, UK. Tel: 01-500 1000)

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