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basic-hog-face-detector's Introduction

Face-Detector

A simple face detector SVM + HOG sliding window approach Non Maximum Suppression Per ridurre le bounding box

Dati Utilizzati:

  • faces: LWZ in the wild (~13000 samples)
  • not faces: caltech 256 dataset (~26000 samples)
  • not faces 2: natural images 10 classes kaggle
  • not faces 3: dtd texture dataset

from the caltech 256 dataset the following classes was removed:

  • religious: buddha, jesuschrist
  • human: faces_easy, human_skeleton, people
  • cartoon: superman, homer-simpson, cartman

limitazioni

  • multi scala va tunato meglio
  • performance non bellissime (tempo calcolo)
  • qualità immagine in input noon deve essere troppo rumorosa o smussata
  • non pensato per riconoscere faccie girate di profilo o di spalle
  • non pensato per risolvere problemi di occlusione (occhiali, mascherina, ...)

condizioni ideali:

  • faccia intera frontale, senza occlusioni
  • un solo soggetto ad una scala abbastanza grande ma non troppo
  • se sono più soggetti ad una certa distanza tra di loro
  • (le faccie piccole ed attaccate tra di loro sono più difficili)

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