Object specific deep feature for face detection

Xianxu Hou, Jiasong Zhu, Ke Sun, Linlin Shen, Guoping Qiu

Research output: Contribution to journalArticlepeer-review


Motivated by the observation that certain convolutional channels of a Convolutional Neural Network (CNN) exhibit object specific responses, we seek to discover and exploit the convolutional channels of a CNN in which neurons are activated by the presence of specific objects in the input image. A method for explicitly fine-tuning a pre-trained CNN to induce object specific channel (OSC) and systematically identifying it for the human faces has been developed. In this paper, we introduce a multi-scale approach to constructing robust face heatmaps based on OSC features for rapidly filtering out non-face regions thus significantly improving search efficiency for face detection. We show that multi-scale OSC can be used to develop simple and compact face detectors in unconstrained settings with state of the art performance.

Original languageEnglish
Pages (from-to)1270-1277
Number of pages8
JournalIEICE Transactions on Information and Systems
Issue number5
Publication statusPublished - May 2018
Externally publishedYes


  • Convolutional neural network
  • Deep feature
  • Face detection
  • Object specific channel


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