Derin Kalıntı Ağ Mimarisi Kullanarak Portre Görüntülerinin Bölütlenmesi

Öz

Portre görüntülerini anlamsal alanlara bölütlemek, sahne anlama ve görüntü analizinde önemli bir adımdır. Bölütleme çok aktif bir çalışma alanı olmakla birlikte, portre bölümlendirme alanında az sayıda çalışma bulunmaktadır. Portre bölütlemesindeki en önemli adımlardan biri, saç, yüz, gövde ve arka plan gibi anlamsal olarak ilişkili piksellerin birlikte gruplandığı, detaylı bölütleme işlemidir. Ancak, saç şekli, rengi ve arka planındaki aşırı farklılıklar nedeniyle bu zor bir problemdir. Çalışmamızda, bu çeşitliliklerin üstesinden gelmek için ERFNet mimarisine dayanan derin bir kalıntı ağı önerdik. Geometrik olarak normalleştirilmiş yüzleri ağ için bir girdi olarak kullandık. İki sınıflı EG1800 veri kümesi ve üç sınıflı LFW Parts Labels Veri Seti üzerinde yapılan deneysel çalışmalar, önerilen yöntemin yüksek doğrulukta ortalama kesişim değeri (mIoU) verdiğini ve piksel tabanlı doğruluğu sağladığını göstermiştir. EG1800 veri kümesi için %96,37 mIoU ve % 98,17 piksel tabanlı doğruluk ve LFW veri kümesi için %90,1 mIoU ve %97,14 doğruluk elde ettik.

Anahtar Kelimeler

• Portre Bölütleme,Derin Öğrenme,Derin Kalıntı Ağlar,Geometrik Normalleştirme,Kodlayıcı Kod Çözücü Ağlar

Segmentation of Portrait Images Using A Deep Residual Network Architecture

Öz

Segmenting portrait images into semantic areas is an important step towards scene understanding and image analysis. Although segmentation is a very active field of study, there are few studies in the field of portrait segmentation.  One of the most crucial steps in portrait segmentation is the precise segmentation process where semantically related pixels grouped together including hair, face, body, and background. However, this is a challenging problem due to the extreme variations in hair shape, color, and background. In order to handle such variations, we proposed a deep residual network based on ERFNet architecture. We used geometrically normalized faces as an input for the network. Experimental studies on Adobe’s Portrait Segmentation dataset (two-classes) and LFW Part Labels Dataset (three-classes) showed that the proposed method provides state of the art mIoU (mean intersection over union) and pixel-based accuracy. We obtained 96.37% mIoU and 98.17% pixel‑based accuracy for EG1800 dataset and 90.1% mIoU and 97.14% accuracy for the LFW dataset.

Anahtar Kelimeler

• Portrait Segmentation,Deep Learning,Deep Residual Networks,Geometric Normalization,Encoder Decoder Networks

Kaynakça

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