Face Detection And Recognition For Distributed Systems Meng Lin and Ermin Hodžić 1.
-
Upload
brett-carr -
Category
Documents
-
view
212 -
download
0
Transcript of Face Detection And Recognition For Distributed Systems Meng Lin and Ermin Hodžić 1.
![Page 1: Face Detection And Recognition For Distributed Systems Meng Lin and Ermin Hodžić 1.](https://reader030.fdocuments.us/reader030/viewer/2022032605/56649e7a5503460f94b7ab23/html5/thumbnails/1.jpg)
Face Detection And Recognition ForDistributed SystemsMeng Lin and Ermin Hodžić
1
![Page 2: Face Detection And Recognition For Distributed Systems Meng Lin and Ermin Hodžić 1.](https://reader030.fdocuments.us/reader030/viewer/2022032605/56649e7a5503460f94b7ab23/html5/thumbnails/2.jpg)
Motivation
• Security systems•Digital cameras, adjustments• Social networks•Marketing
2
![Page 3: Face Detection And Recognition For Distributed Systems Meng Lin and Ermin Hodžić 1.](https://reader030.fdocuments.us/reader030/viewer/2022032605/56649e7a5503460f94b7ab23/html5/thumbnails/3.jpg)
Face Detection
• Locating and extracting faces in images•Rectangles as output
3
![Page 4: Face Detection And Recognition For Distributed Systems Meng Lin and Ermin Hodžić 1.](https://reader030.fdocuments.us/reader030/viewer/2022032605/56649e7a5503460f94b7ab23/html5/thumbnails/4.jpg)
Face Recognition
• Identifying person on image• Finding closest match
4
![Page 5: Face Detection And Recognition For Distributed Systems Meng Lin and Ermin Hodžić 1.](https://reader030.fdocuments.us/reader030/viewer/2022032605/56649e7a5503460f94b7ab23/html5/thumbnails/5.jpg)
MapReduce model
•Parallel model• Framework for distributed systems•Hadoop local filesystem•Amazon Elastic MapReduce
5
![Page 6: Face Detection And Recognition For Distributed Systems Meng Lin and Ermin Hodžić 1.](https://reader030.fdocuments.us/reader030/viewer/2022032605/56649e7a5503460f94b7ab23/html5/thumbnails/6.jpg)
Solution: Face Detection
6
![Page 7: Face Detection And Recognition For Distributed Systems Meng Lin and Ermin Hodžić 1.](https://reader030.fdocuments.us/reader030/viewer/2022032605/56649e7a5503460f94b7ab23/html5/thumbnails/7.jpg)
Solution: Face Detection
7
![Page 8: Face Detection And Recognition For Distributed Systems Meng Lin and Ermin Hodžić 1.](https://reader030.fdocuments.us/reader030/viewer/2022032605/56649e7a5503460f94b7ab23/html5/thumbnails/8.jpg)
Solution: Face Detection
•Partitions based on face scale
8
![Page 9: Face Detection And Recognition For Distributed Systems Meng Lin and Ermin Hodžić 1.](https://reader030.fdocuments.us/reader030/viewer/2022032605/56649e7a5503460f94b7ab23/html5/thumbnails/9.jpg)
Solution: Face Recognition
•Distribution of recognizers•Recognizing in parallel•Reduce the most confident result
9
![Page 10: Face Detection And Recognition For Distributed Systems Meng Lin and Ermin Hodžić 1.](https://reader030.fdocuments.us/reader030/viewer/2022032605/56649e7a5503460f94b7ab23/html5/thumbnails/10.jpg)
Solution: Face Recognition
10
![Page 11: Face Detection And Recognition For Distributed Systems Meng Lin and Ermin Hodžić 1.](https://reader030.fdocuments.us/reader030/viewer/2022032605/56649e7a5503460f94b7ab23/html5/thumbnails/11.jpg)
Hadoop Image Handling
• Images as text•Collection of images in a big file•Utilize Hadoop default input format
11
![Page 12: Face Detection And Recognition For Distributed Systems Meng Lin and Ermin Hodžić 1.](https://reader030.fdocuments.us/reader030/viewer/2022032605/56649e7a5503460f94b7ab23/html5/thumbnails/12.jpg)
Hadoop Image Handling
12
![Page 13: Face Detection And Recognition For Distributed Systems Meng Lin and Ermin Hodžić 1.](https://reader030.fdocuments.us/reader030/viewer/2022032605/56649e7a5503460f94b7ab23/html5/thumbnails/13.jpg)
Evaluation
• Segmented Face Detection
•Raw OpenCV Face Detection
13
![Page 14: Face Detection And Recognition For Distributed Systems Meng Lin and Ermin Hodžić 1.](https://reader030.fdocuments.us/reader030/viewer/2022032605/56649e7a5503460f94b7ab23/html5/thumbnails/14.jpg)
Evaluation
• Face recognition
•More nodes = slower• Input and data transfer overhead• Jobs computationally cheap
14
![Page 15: Face Detection And Recognition For Distributed Systems Meng Lin and Ermin Hodžić 1.](https://reader030.fdocuments.us/reader030/viewer/2022032605/56649e7a5503460f94b7ab23/html5/thumbnails/15.jpg)
Conclusion
• Easily scalable parallel mode•Generalized framework• OpenCV just one sample tool
•A lot of communication• Low utilization of processors
15
![Page 16: Face Detection And Recognition For Distributed Systems Meng Lin and Ermin Hodžić 1.](https://reader030.fdocuments.us/reader030/viewer/2022032605/56649e7a5503460f94b7ab23/html5/thumbnails/16.jpg)
16