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STH-DCAM U

SER

M

ANUAL

 

 

 

 

 

 

 

 

 

 

 

 

 

2001 V

IDERE 

D

ESIGN

 

 

7.2.2 Linux Installation 

To install the software under Linux, untar the file 

svscap22X.tgz

 in a 

new directory, which will become the top-level directory of the software.  
Add 

bin/

 to your LD_LIBRARY_PATH variable. 

The directory structure for the software is: 

bin/ 

     smallvcap 

     stcap 

     libsvscap.so 

     pixcap.so 

     dcamcap.so 

   src/ 

     svs.h 

     svsclass.h  

   samples/ 

     *.cpp 

     makefile 

There are two applications.  

smallvcap

 is a GUI-based application that 

allows the user to exercise the capture functions of the STH-DCAM.  It is 
described in earlier sections of this document. 

stcap

 is a simple application that connects to the stereo head and displays 

stereo images.  It can serve as a template for user programs that integrate 
stereo capture from the STH-DCAM. 

libsvscap.so

 is the capture library for Linux.  These libraries must be 

set to the correct ones for the STH-DCAM.  Copy the following files in the 
bin/ directory: 
 

dcamcap.so -> libsvscap.so     

You can check that the correct interface library is installed, by looking at 
the information text when the capture application is started.  It should say 
“Dual DCAM digital stereo interface”.  If not, the wrong interface library is 
installed in 

libsvscap.so

 

13 

Summary of Contents for STH-DCAM

Page 1: ...STH DCAM USER S MANUAL 2001 VIDERE DESIGN STH DCAM Stereo Head User s Manual Updated Rev 2 2001 Videre Design 1...

Page 2: ...1394 Interface 9 5 1 1394 Cable 9 5 2 1394 Host Interface 9 6 User Controls 10 6 1 Color 10 6 2 Video Digitization Parameters 10 6 3 Subsampling 11 6 4 Subwindowing 11 6 5 Frame Rates 11 7 Installing...

Page 3: ...e characteristics They are fully controllable via the IEEE 1394 interface in both manual and automatic modes The user can set exposure gain binning etc or have the stereo head electronics do it automa...

Page 4: ...apture program smallvcap exe on the host computer You should see a screen as in Figure 2 1 The message window should indicate that the STH DCAM interface is present If not go back to software installa...

Page 5: ...and then read out line by line The imagers operate in progressive mode only that is each line is output in succession from the full frame The imagers are synchronized to a common clock so that the co...

Page 6: ...x240 7 5 Hz 7 5 Hz Table 3 1 Supported frame rates for the STH DCAM 400 Mbps IEEE 1394 bus Left Imager Right Imager 1394 Interface Electronics Sync signals 8 bit pixels 12 MHz per imager 1394 Digital...

Page 7: ...non abrasive optic cleaning tissue with a small amount of methyl alcohol or similar lens cleaning solvent and wipe the imager glass surface gently Dry with a similar tissue 4 3 Imager Size The imager...

Page 8: ...ion in mm as a function of distance for several different lens focal lengths Figure 4 1 plots this relationship for several focal lengths At any distance the range resolution is inversely proportional...

Page 9: ...e connection topology doesn t have any loops The STH DCAM is always a leaf of the bus At a maximum it will need about 60 of the bandwidth of a 400 MBps connection 5 2 1394 Host Interface The host comp...

Page 10: ...top of its pixels the color information is sampled at a lower resolution than a similar non colorized camera samples monochrome information In general a color camera has about the spatial resolution o...

Page 11: ...ptical performance 6 3 Subsampling In many applications it is not necessary to work with the the full 640x320 pixel array The CCD image processors are capable of reducing the amount of information con...

Page 12: ...this manual 7 2 1 MS Windows Installation To install the software under MS Windows execute the file svscap22X exe The installation process will add the relevant interface and application software The...

Page 13: ...e functions of the STH DCAM It is described in earlier sections of this document stcap is a simple application that connects to the stereo head and displays stereo images It can serve as a template fo...

Page 14: ...STH DCAM USER S MANUAL 2001 VIDERE DESIGN 8 Interface Software API Please see the Small Vision System User s Manual for information about the software API for capturing and saving images 14...

Page 15: ...face Any 1394 OHCI card Host OS Windows 98 2000 XP Linux 9 3 Imagers Type Sony Wfine HAD CCD Format Color 8 bits pixel Bayer pattern Scan mode Progressive Pixel size 5 6 um square Sensitivity 1 lux Ex...

Page 16: ...STH DCAM USER S MANUAL 2001 VIDERE DESIGN Stereo module size 6 x 2 6 x 1 Weight with lenses 8 ounces 16...

Page 17: ...chnical support please contact Videre Design by email or FAX Videre Design P O Box 585 Menlo Park CA 94026 0585 Fax 650 323 3646 Email mclaughl dnai com Technical information about stereo algorithms a...

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