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Security Tracker

This system tracks objects in videos using Portable Pixelmap (PPM), Grayscale method, Background Subtraction, and Skin Detection for efficient surveillance. Learn more about its design, interface, and skin detection algorithms.

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Security Tracker

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  1. Security Tracker By Jered Olckers SUPERVISOR: MR. J. CONNAN

  2. Introduction • Project Overview • The main purpose of system is to track an object across multiple frames using fixed input source.

  3. High Level & Low Level Design Interface • User Interface Specification Components • Portable Pixel map (PPM) • Grayscale • Background Subtraction • Skin Detection

  4. Portable Pixelmap (PPM) • PPM is a type of image file format. • Each pixel can be easily manipulated since it is in an understandable format. Start ASCII PPM file format Comment Demotions Red Green Blue Max Colours ASCII Decimal

  5. Grayscale • Every colour image a pixel consists of 3 values; red, green and blue. • A Grayscaleimage value of each pixel is the same. • To convert pixel colour to its appropriate level of grey, the following calculation is needed. Greyscale Red X 30% Green X 59% Blue X 11%

  6. Greyscale Picture Convert

  7. Background Subtraction minus

  8. Skin colour detection • This is used to identify whether a set of pixels is a potential skin area. • Convert from RGB to HSV colour space. • The threshold values is used to distinguish between skin and non skin pixels.

  9. Skin colour detection (2) • The skin colourdetection will be used to identify whether a person has been detected in a video. Skin pixels detected. .

  10. Object Orientated Approach

  11. Interface

  12. Project Plan • Term 3 • Implement Skin detection. • Extend functionality on interface • Display tracked object in video. • Testing for correctness. Term 4 • Testing and evaluating software • Create User Manual.

  13. References • Skin Detection in Luminance Images using Threshold Technique: Hani. K. Almohair, Abd Rahman Ramli, Elsadig A. M, Shaiful J. Hashim • A Robust Vision-based Moving Target Detection and Tracking System. • Using PPM to make high-quality color pictures • Frame-skipping tracking for single object with global motion detection!: Ming Anlong, Ma Huadong

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