Features
Locates
Boundaries (Edges) in "Real" Time
Performs
Both Hoizontal and Vertical Scanned Edge Detection
Translates
Image to Condensed Form Compatible with Computer
Condeses
Image to 1 Bit Per 16 Pixels
Performs
Serial-to-Parallel Conversion for 16 Bit Output
Operates at
25 Mhz Pixel Clock Rate
Provides
Real Time Image Processing
Filters
Image Noise
Enhances
Image Bounday
Provides up
to 1024 x 1024 Processing Resolution
Supports
Both Linear Array and Two Dimension Video Cameras
Supports
Camera-Based or External-to-Computer Usage
Supports
Dynamic Differential Threshold Adjustment
Description
The IPP4200R provides boundary locations of all objects in
a video scene. It communicates these relatively low volume
data to the external memory storage of a controlling
processor. This enables the controlling processor to
quickly locate an object. The data content permits location
of scene position and orientation. The IPP4200R is a
uniquely programmed device that loads an Altera 10K10
Programmable Logic Device (PLD); the PLD is user supplied.
The PLD functions as an IPP4200 when powered-up (loaded
with the IPP4200R program). A small external RAM is
required for support to permit this 3-component set to
function with minimal interface to the user system. The
video scene is divided into 4 x 4 pixels areas called
cells. The IPP4200 evaluates each cell to determine if it
has a boundary (edge) of an object within the cell. The
true/false (boolean) status is registered for each cell; 16
pixels are represented by a single bit. The IPP4200 accepts
digitized video data and translates these to cell status
with inherent image noise filtering and image enhancement.
A 16-bit word representing the status of 16 cells is output
to the controlling processor system memory. This process is
continuously repeated as the field of video data is
scanned. The transfer time (of the 16-bit output) is only
a very small percentage of the scan time of the field. The
delay time (from the scanning of a pixel to the output of
status data) is less than the time for eight horizontal
line scans. This permits the use of this device in a
pipeline processing system. The IPP4200 can be externally
controlled to change a differential threshold level
controlling sensitivity. It processes digitized video
camera data in real time with minimal data storage to RAM.
It supports a maximum image horizontal line size of 1024
pixels while self-adjusting to any shorter line. There are
no size limitations in the vertical direction permitting it
to be used far both linear array and two dimension video
cameras. The device operates up to 25MHz (preliminary)
pixel clock rate.
The IPP4200 detects objects of a minimum size of 4-pixels
in either the horizontal or vertical direction. The
IPP4200 provides a coordinate-structured (x, y) output
format; it can identify the location of objects in a real
time system. It translates these data
in a condensed, quickly interpreted format to a controlling
system computer.
Click for IPP4200R Data Sheets
U.S. Patent #4897719 applicable.
