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Posts Tagged ‘segmentation’

Color object tracking with STM32 + OV7725

January 27th, 2014 10 comments

Abstract
DEVELOPMENT OF AN EMBEDDED SYSTEM FOR TARGETING A COLOR OBJECT USING A VIDEO CAMERA INTEGRATED TO A MICROCONTROLLER
This project uses STM32F103 microcontroller to track an object, it gets the image from an OV7725 camera + FIFO, it is configured as rgb565 QVGA(320×240).
In the touchscreen the target object can be selected, its color defines the thereshold to binarize an image. After the segmentation is done an algorithm recognizes the contour of the image and its center, once located a PI controller moves 2 servos (pan, tilt) in order to target the objective.
A video of the system doing real-time tracking can be seen in the bottom of the post. The source code and Keil project for the STM32F103VCT device can be downloaded here: Image_Processing.zip
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Objective
Designing an embedded system in a microprocessor for detection and targeting a colored object, without the need for externally processing system (PC)
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