Documentation

This is machine translation

Translated by Microsoft
Mouseover text to see original. Click the button below to return to the English verison of the page.

Note: This page has been translated by MathWorks. Please click here
To view all translated materals including this page, select Japan from the country navigator on the bottom of this page.

Image Capture with Camera Link® and Bitflow™ Neon-CLB Frame Grabber

This example shows how to capture and view video images from a Camera Link camera attached to the Bitflow™ Neon-CLB frame grabber board. Images are acquired with the model dxpcImMultiTarget running on the target computer and viewed with the model dxpcImMultiHost running on the development computer. dxpcImMultiTarget is a multirate multitasking model. Images are captured at 30Hz and then compressed and transmitted to the development computer at 10 Hz.

REQUIREMENTS

  • Computer Vision System Toolbox™

  • Bitflow Neon-CLB frame grabber installed in the target computer

  • Bitflow SDK installed on the development computer

  • Camera Link camera supported by the Bitflow Neon-CLB frame grabber

Open, Build, and Download the Target Computer Model to TargetPC1

Click here to open the target computer model: dxpcImMultiTarget.

% Open the model.
mdlOpen = 0;
systems = find_system('type', 'block_diagram');
if ~any(strcmp(systems,'dxpcImMultiTarget'))
  mdlOpen = 1;
  open_system('dxpcImMultiTarget');
end

% Build the model and download to the target computer, TargetPC1.
set_param('dxpcImMultiTarget','RTWVerbose','off'); % Configure for a non-Verbose build.
rtwbuild('dxpcImMultiTarget');                     % Build and download application.
### Starting Simulink Real-Time build procedure for model: dxpcImMultiTarget
### Generated code for 'dxpcImMultiTarget' is up to date because no structural, parameter or code replacement library changes were found.
### Successful completion of build procedure for model: dxpcImMultiTarget
### Looking for target: TargetPC1
### Download model onto target: TargetPC1
% Close the target model if we opened it.
if (mdlOpen)
  bdclose('dxpcImMultiTarget');
end

Open the Development Computer Model

Click here to open the Simulink® model on the development computer: dxpcImMultiHost.

This model receives compressed images sent by dxpcImMultiTarget, decompresses the images, and renders them to a video display.

% Open the model.
mdlOpen = 0;
systems = find_system('type', 'block_diagram');
if ~any(strcmp(systems,'dxpcImMultiHost'))
  mdlOpen = 1;
  open_system('dxpcImMultiHost');
end

Start and Run the Models

% Using the Simulink Real-Time(TM) object variables |tg|, start the target computer model.
start(tg); % Start the target computer model.
pause(1);  % Wait for 1 sec.

% Start the Simulink model.
set_param(bdroot,'SimulationCommand','start'); % Start the develpment computer model.
pause(10);  % Wait for 10 sec.

Display the Images

% Render the video display.
open_system([bdroot,'/To Video Display']);

% Plot the image size.
open_system([bdroot,'/Scope']);

stop(tg); % Stop the target computer model.
set_param(bdroot,'SimulationCommand','stop'); % Stop the Simulink model.

% Close the development computer model if we opened it.
if (mdlOpen)
  bdclose('dxpcImMultiHost');
end

% EOF dxpcImMultiDemo.m
Was this topic helpful?