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Machine Vision Newsletter

Contact:
info@adeptturnkey.com.au


Perth:
(08) 9242 5411

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(02) 9905 5551

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(03) 9384 1775



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PC RGB
Back to Standard Grabbers for Analog Cameras
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Back to Coreco Frame Grabbers

PC-RGB is a high performance, low-cost PCI bus image capture board that provides the industry's fastest transfer of color or monochrome video data to host computer memory. PC-RGB combines a high performance frame grabber, 4MB of on-board memory to speed image transfers, unique on-board circuitry for precise interrupt control, OPTO-22 compatible digital I/O for controlling external events, and support for a wide range of cameras. PC-RGB

PC-RGB can acquire monochrome (up to 3 simultaneous input channels-6 total inputs) or RGB color data (2 RGB channels) from RS-170, CCIR, progressive scan, and variable scan cameras. Data is stored in on board frame memory in one of the following available formats: 8-bit (any channel R,G,or B), 16-bit (converts 24-bit RGB to 16-bit YCrCb), 24-bit packed, 32-bit (RGBa or aRGB), or 32-bit planar mode (separates each 8-bit channel).

PC-RGB uses a special hardware scatter gather technique to provide continuous high-speed image transfers across the PCI-bus at rates up to 120MB/s sustained with almost no host CPU involvement.

PC-RGB can transfer images and selected Areas of Interest (AOIs, up to 4K x 4K) out of memory, at full speed, without the need to write any special code. Additionally, on-board pixel packing circuitry enables non-destructive graphic overlays, such as annotation, windows, and cross-hairs on live images. PC-RGB provides additional advanced features including padding (sending 8-bit data to a 16-bit color surface of VGA), clipping (allowing data to be bus mastered directly to a VGA target without seeing "color dots" - Windows reserved values), and programmable X/Y zooming (x2, x4).

PC-RGB provides users with a deterministic response to interrupts through a combination of special on-board timing circuitry and Coreco Imaging's VIXN (Virtual Interrupt eXtensioN) software. When used together, industrial machine vision users can be guaranteed precise control of interrupts in Windows NT and can use PC-RGB to control I/O lines that would have traditionally required a programmable controller (PLC).

Video Formats

  • Color - Up to 2 RGB inputs

  • Monochrome - 2 sets of 3 synchronous RS-170, CCIR, progressive & variable scan cameras

Features & Benefits

  • PCI-bus card moves images to the host PC in less than 4 ms, providing an additional 29 ms of free processing time

  • Hardware Scatter Gather bus mastering features for high speed simultaneous acquire and transfer to host with minimal CPU involvement

  • Image transformations on transfer to host memory with no additional CPU usage (flip, rotate, zoom, etc.)

  • Image deinterlace on image transfer with no CPU usage

  • Supports programmable OPTO-22 compatible I/O, trigger, strobe, and frame reset for developers with “real world” applications and demanding cycle times

  • DMA of Areas of Interest (AOIs) minimize transfer times

Applications

  • Multiple camera simultaneous acquire for high speed packaging applications

  • "Real" color processing and optional high speed colorplane conversion

Specifications

Sensor Interface

  • Input - 2 RGB Color or up to 2 sets of 3 synchronous RS-170, CCIR monochrome cameras
  • Programmable time base generator for standard and non-standard video formats: resolution to 4K x 4K
  • PLL or XTAL mode (Outputs horizontal/composite, vertical and reset timing to camera. 3 sync sets available for driving 3 simultaneous mono cameras)
  • Progressive scan (non-interlaced) signals supported
  • Variable scan cameras are supported, single ended TTL timing (0 - 30 MHz)
  • Dual-tap cameras are supported using two of the three RGB channels

Video Digitizer

  • Monotonic 24-bit flash ADC; Input sample rate programmable to 30 MHz, 12Mhz video bandwidth, 48DB SNR

Video Memory

  • 4MB

Video Signal Conditioning

  • Programmable input gain selection (4 gain factors)
  • Programmable positive and negative signal reference: 0 to +5 Volts in 256 steps
  • Video low pass anti-aliasing filter
  • DC restoration: programmable clamp pulse

On Board Digital I/O

  • OPTO-22 compatible

Color Space Converter and Look-Up-Table

  • 10-bit precision 3x3 30 MHz matrix multiplier and a 64KDWORD (32 in - 32 out) ILUT following ADC

Transfer Rates

  • Less than 4 ms per image (Requires a motherboard with burst mode to host memory)
  • Contact Coreco Imaging for suggested motherboards

External Trigger, Strobe Control, and Frame Reset

  • Trigger provides synchronization to external events: 3 TTL with Schmitt Trigger and (2) Opto-coupled, (1) RS-422 differential
  • Flexible strobe control
  • Support for frame reset cameras
  • Edonpisha supported

Video Window Generator

  • Programmable resolutions up to 4k x 4k. Area of Interest (AOI).

Interrupts

  • Software interrupts can be generated at the start of the strobe pulse, the start of a vertical blank, or at the end of a trigger cycle

Hardware Color Dot Clipping

On Board Decimation

Data formatting

  • 8-bit Red, Green, or Blue
  • 16-bit (converts 24-bit RGB to 16-bit YcrCb 4:2:2)
  • 24-bit (packs 24-bit RGB to data into 32-bit DWORDS) This saves memory and supports standard color VGA cards
  • 32-bit standard RGBa or aRGB format
  • 32-bit planar mode separates data from each 8-bit input into its own plane in memory.

Display - Windows

  • Display resolution as per installed VGA device driver
  • A DirectX compatible SVGA adapter required for real-time display

Bus Requirements

  • 32-bit PCI slot
  • 1.3 Amps @ +5 volts
  • 0.2 Amps @ + 12 volts
  • 8" long PCI card

Power Output

  • 500 ma @ +12 volts per camera (1 Amp total)

 

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