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4.
KIPR Link Vision System
About Color Vision Tracking and QR Codes
The KIPR Link Vision System incorporates color vision tracking and QR code identification. A USB web
camera is used to provide images to the KIPR Link at a rate dependent on lighting conditions but
exceeding 6 frames per second. Using the KIPR Link interface, an arbitrary number of camera
configurations containing channels for color vision tracking and/or QR code identification can be
defined.
For color vision tracking, images are processed by the KIPR Link to identify "blobs" matching the color
specification for each color channel in a camera configuration. A blob is a set of contiguous pixels in the
image matching the color specification for the channel.
For each color channel in a selected configuration, the values to be used to identify which pixels in an
image match the desired color for the channel are interactively selected from a color spectrum chart to
provide a color specification for the channel. Live feed from the camera simplifies the process of
determining how much of the spectrum is needed to produce blobs matching the color (e.g., a particular
part of the spectrum might include all pixels that are "reddish" in color for a channel to be used for
identifying red objects). The spectrum values for the channel are retained with the configuration until
the configuration is deleted.
The camera image size is 160 x 120. The upper left corner has coordinates (0,0) and the lower right has
coordinates (159,119). The camera image displayed on the KIPR Link is slightly smaller than the actual
image size.
KIPR Link Vision Library functions are used to select a configuration and obtain information about the
color blobs being identified by its channels, such as bounding box coordinates and pixel density.
In addition to channels for color tracking, a configuration can have channels for identifying QR (Quick
Response) codes. A QR code is essentially a 2-dimensional bar code for compactly representing text
data. KIPR Link Vision Library functions are provided for decoding any QR code in the image.
(0,0)
(159,119)
Содержание KIPR Link
Страница 1: ...KIPR Link Manual Version BB2014 1 1...
