{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,16]],"date-time":"2026-02-16T17:03:50Z","timestamp":1771261430641,"version":"3.50.1"},"reference-count":11,"publisher":"IEEE","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2009,11]]},"DOI":"10.1109\/icip.2009.5413938","type":"proceedings-article","created":{"date-parts":[[2010,2,17]],"date-time":"2010-02-17T18:32:08Z","timestamp":1266431528000},"page":"3305-3308","source":"Crossref","is-referenced-by-count":43,"title":["A novel feature extraction method using Pyramid Histogram of Orientation Gradients for smile recognition"],"prefix":"10.1109","author":[{"family":"Yang Bai","sequence":"first","affiliation":[]},{"family":"Lihua Guo","sequence":"additional","affiliation":[]},{"family":"Lianwen Jin","sequence":"additional","affiliation":[]},{"family":"Qinghua Huang","sequence":"additional","affiliation":[]}],"member":"263","reference":[{"key":"ref4","doi-asserted-by":"crossref","first-page":"919","DOI":"10.1109\/TNN.2003.813829","article-title":"Independent Component Analysis of Gabor Features for Face Recognition","volume":"14","author":"liu","year":"2003","journal-title":"IEEE Transactions on Neural Networks"},{"key":"ref3","doi-asserted-by":"publisher","DOI":"10.1109\/CVPR.2004.327"},{"key":"ref10","first-page":"3451","article-title":"A new fast training algorithm for SVM","volume":"6","author":"he","year":"2008","journal-title":"Machine Learning and Cybernetics"},{"key":"ref6","doi-asserted-by":"publisher","DOI":"10.1109\/CVPR.2006.68"},{"key":"ref11","doi-asserted-by":"publisher","DOI":"10.1006\/jcss.1997.1504"},{"key":"ref5","doi-asserted-by":"publisher","DOI":"10.1145\/1282280.1282340"},{"key":"ref8","doi-asserted-by":"publisher","DOI":"10.1023\/B:VISI.0000029664.99615.94"},{"key":"ref7","doi-asserted-by":"publisher","DOI":"10.1109\/CVPR.2005.177"},{"key":"ref2","doi-asserted-by":"publisher","DOI":"10.1109\/34.598228"},{"key":"ref9","doi-asserted-by":"publisher","DOI":"10.1109\/AFGR.2000.840611"},{"key":"ref1","doi-asserted-by":"publisher","DOI":"10.1016\/S0042-6989(01)00002-5"}],"event":{"name":"2009 16th IEEE International Conference on Image Processing ICIP 2009","location":"Cairo, Egypt","start":{"date-parts":[[2009,11,7]]},"end":{"date-parts":[[2009,11,10]]}},"container-title":["2009 16th IEEE International Conference on Image Processing (ICIP)"],"original-title":[],"link":[{"URL":"http:\/\/xplorestaging.ieee.org\/ielx5\/5403221\/5413332\/05413938.pdf?arnumber=5413938","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2017,6,19]],"date-time":"2017-06-19T04:56:44Z","timestamp":1497848204000},"score":1,"resource":{"primary":{"URL":"http:\/\/ieeexplore.ieee.org\/document\/5413938\/"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2009,11]]},"references-count":11,"URL":"https:\/\/doi.org\/10.1109\/icip.2009.5413938","relation":{},"subject":[],"published":{"date-parts":[[2009,11]]}}}