SOYO STH-DCAM - Manuals - manualsarea.com

Page 2 - Table of Contents

STH-DCAM U SER ’ S M ANUAL  2001 V IDERE D ESIGN Table of Contents 1 Introduction ...........................................................................................3 2 Quick Start .............................................................................................4 3 Hardware Over...

Page 3 - Introduction

STH-DCAM U SER ’ S M ANUAL  2001 V IDERE D ESIGN 1 Introduction The STH-DCAM (Dual-DCAM) is a compact, low-power digital stereo head with an IEEE 1394 digital interface. It consists of two VGA (640x480), progressive scan CCD imagers and associated IEEE 1394 electronics, mounted in a rigid, milled D...

Page 4 - Figure 2-1 Video capture program window.; Quick

STH-DCAM U SER ’ S M ANUAL  2001 V IDERE D ESIGN Figure 2-1 Video capture program window. 2 Quick Start The STH-DCAM comes assembled, with 3.6 mm lenses as standard. To set up and test the STH-DCAM, you will need the following: 1. Host computer with a 1394 PCI or PCMCIA card, OHCI compliant. 2. 139...

Page 5 - Hardware; Schematic; Rates

STH-DCAM U SER ’ S M ANUAL  2001 V IDERE D ESIGN 3 Hardware Overview Figure 3-1 shows the hardware configuration of the STH-DCAM. The imager module has a milled Delrin frame that rigidly holds two Sony HAD CCD color imagers, separated by a fixed distance of 9 cm. Lens mounts are attached to the fra...

Page 6 - Frame Size Frame rate,

STH-DCAM U SER ’ S M ANUAL  2001 V IDERE D ESIGN 6 Frame Size Frame rate, monochrome Frame rate, color 30 Hz 30 Hz 15 Hz 15 Hz 640x480 7.5 Hz 7.5 Hz 30 Hz 30 Hz 15 Hz 15 Hz 320x240 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...

Page 7 - Lenses; Number; Length

STH-DCAM U SER ’ S M ANUAL  2001 V IDERE D ESIGN 4 Lenses The STH-DCAM uses standard miniature lenses (12 x 0.5 mm). Good-quality, fixed-focus lenses with low distortion and high light-gathering capability are best. Lenses are characterized optically by imager size, F number, and focal length. Foll...

Page 8 - Resolution; bf; HFOV

STH-DCAM U SER ’ S M ANUAL  2001 V IDERE D ESIGN 4.6 Range Resolution Range resolution is the minimum distance the stereo system can distinguish. Since stereo is a triangulation operation, the range resolution gets worse with increasing distance from the stereo head. The relationship is: d bf r r ∆...

Page 9 - Interface; Cable

STH-DCAM U SER ’ S M ANUAL  2001 V IDERE D ESIGN 5 1394 Interface Digital image information is transferred from the STH-DCAM to the host PC via an IEEE 1394 cable. The cable sends a video stream from the imagers to the PC, and sends commands from the PC to the stereo head to control exposure, color...

Page 10 - User; Video Digitization Parameters

STH-DCAM U SER ’ S M ANUAL  2001 V IDERE D ESIGN 6 User Controls The CCD imagers are fully controllable via the IEEE 1394 interface. User programs may input color images, set video digitization parameters (exposure, gain, red and blue balance), and frame size. All of these parameters can be set wit...

Page 11 - Figure 6-2 Frame size control in the main capture window.; Table 6-1 Allowable frame rates for the STH-DCAM in different

STH-DCAM U SER ’ S M ANUAL  2001 V IDERE D ESIGN Both imagers are treated in exactly the same manner. It is not possible to set a different exposure or gain on each imager. Figure 6-2 Frame size control in the main capture window. Digitization control can operate in either manual or automatic mode....

Page 12 - Installing the 1394 Host Card and Capture; Software

STH-DCAM U SER ’ S M ANUAL  2001 V IDERE D ESIGN 7 Installing the 1394 Host Card and Capture Software The STH-DCAM connects to a host computer via a digital 1394 interface. The host PC must have a 1394 port, and software to interface to the video stream from the camera. This interface software pres...

Page 14 - Interface

STH-DCAM U SER ’ S M ANUAL  2001 V IDERE D ESIGN 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 - Technical; Frame formats and rates

STH-DCAM U SER ’ S M ANUAL  2001 V IDERE D ESIGN 9 Technical Specifications 9.1 Geometry Housing Rigid milled Delrin frame Baseline 9 cm, fixed Imager size 1/4 inch diagonal Lens type 12 mm miniature, interchangeable 9.2 Interface Type Digital 1394 [Firewire], OHCI compliant Speed Maximum 20 megapi...

Page 17 - 0 Technical Support

STH-DCAM U SER ’ S M ANUAL  2001 V IDERE D ESIGN 10 Technical Support For technical 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: [email protected] Technical information about stereo algorithms and stereo calibr...