A Study of Facial Image Storage and Retrieval System with Privacy Protection

• Project/Area Number: 25730084
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Information security
• Research Institution: Kyoto University
• Principal Investigator: MORIMURA Yoshitaka 京都大学, 学術情報メディアセンター, 助教 (80578279)
• Project Period (FY): 2013-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000); Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2013: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
• Keywords: プライバシー保護 / 画像検索 / 顔画像認識 / 情報セキュリティ

Outline of Final Research Achievements

We aimed to establish the facial image storage and retrieval system to search facial images of criminal suspects and to protect privacy of good citizens, based on integration of image retrieval technology and cryptographic technology. To realize it, we proposed methods to generate effective identification code from a facial image (1) and to encrypt and decrypt data with a retrieval authorization process based on the identification code (2). We implemented and evaluated the proposed system and obtain some observation to balance privacy protection and social benefit.

Research Products

• [Presentation] プライバシ保護顔画像検索システムの実装評価 (2015)
  • Author(s): 森村 吉貴, 舩冨 卓哉, 上原 哲太郎, 美濃 導彦
  • Organizer: 電子情報通信学会 マルチメディア情報ハイディング・エンリッチメント研究会
  • Place of Presentation: 大濱信泉記念館（沖縄県・石垣市）
  • Year and Date: 2015-03-12 – 2015-03-13
• [Presentation] プライバシを考慮した防犯カメラ映像処理 (2013)
  • Author(s): 舩冨卓哉、川西康友、美濃導彦、森村吉貴、満上育久
  • Organizer: 人工知能学会全国大会
  • Place of Presentation: 富山