Video Formats And Modes - Imi Tech PEARL IMB-20FT User's Operation Manual

PEARL SERIES Operation Manual
7.

Video Formats and Modes

IIDC 1.31 defines several video formats which determine the video data output from the camera. An overview of
these formats is as follows:
Format 0 : Video formats up to VGA(640 x 480) resolution.
Format 1 : Video formats for SVGA(800 x 600) and XGA(1024x768) resolution.
Format 2 : Video Formats for SXGA or higher resolutions ( 1280 x 960 and 1600 x 1200 )
Format 6 : Still Images
Format 7 : Scalable images sized ( User defined size and position )
Format 0 / Format 1 / Format 2
In these formats, the frame rates are pre-defined for each video mode as per the IIDC specification.
There are several defined modes for each format where a mode specifies the size and color information of the
pixels. By reading the inquiry register of the camera, the user may determine which frame rates are supported by
the camera. Please refer to the IIDC specification for the details.
Format 7
Format 0, 1, & 2 were defined at the early stage of the design and development of digital industrial cameras; where
cameras supported these common VESA compliant resolutions. Because the user required a flexible and definable
format; camera manufacturers utilized the user definable Format 7 to meet this demand. Format 7 is extremely
flexible and allows the user to define the width, height, position and pixel format of the video data where separate
sets of control registers exists for each Format 7 mode.
Offset
000h
004h
008h
00Ch
010h
014h
034h
038h
03Ch
040h
044h
Please refer to the IIDC specification for the details.
NOTE : In Format 7 Mode, frames rates may vary which may depend on Size, Color, Maximum byte per packet,
shutter and system performances.
P i o n e e r i n D i g i t a l V i s i o n T e c h n o l o g y
Name
MAX_IMAGE_SIZE_INQ
UNIT_SIZE_INQ
IMAGE_POSITION
IMAGE_SIZE
COLOR_CODING_ID
COLOR_CODEING_INQ
PIXEL_NUMBER_INQ
TOTAL_BYTE_HI_INQ
TOTAL_BYTE_LO_INQ
PACKET_PARA_INQ
BYTE_PER_PACKET
Description
Maximum Horizontal / Vertical pixel number
Horizontal and Vertical unit pixel number
Left / Top position of requested image region (pixel)
Width / Height of the requested image region (pixel)
Color coding ID from COLOR_CODING_INQ register
Inquiry register for color information setting
Pixel number per frame
Higher quadlet of total bytes of image data per frame
Lower quadlet of total bytes of image data per frame
Unit (Minimum) bytes per packet Multiple by 4
Maximum bytes per packet Multiple by UnitBytePerPacket
Packet size, Recommended bytes per packet. If this value is
zero, shall ignore this field.
Page 81