计算机工程与应用
計算機工程與應用
계산궤공정여응용
COMPUTER ENGINEERING AND APPLICATIONS
2014年
23期
167-171
,共5页
掌纹识别%支持向量机%主成分分析%统一选择%粒子群优化算法
掌紋識彆%支持嚮量機%主成分分析%統一選擇%粒子群優化算法
장문식별%지지향량궤%주성분분석%통일선택%입자군우화산법
palmprint recognition%support vector machine%principal component analysis%simultaneously selection%particle swarm optimization algorithm
为了进一步提高掌纹识别系统性能,充分利用主成分分析特征维数和支持向量机参数之间的联系,提出了一种特征维数和分类器参数统一选择的掌纹识别模型(Features-Classifier)。对掌纹图像进行预处理,将主成分分析图像特征维数和支持向量机参数作为一个粒子,在统一的目标函数下通过粒子之间的信息交流和相互协作,找到最优掌纹特征和分类器参数,根据最优掌纹特征和分类器参数建立掌纹图像识别模型,并采用Po1yU掌纹数据库对模型性能进行仿真实验。结果表明,Features-Classifier的掌纹平均识别率达到94%以上,识别结果明显优于独立、分开选择特征维数和分类器参数的掌纹识别模型。
為瞭進一步提高掌紋識彆繫統性能,充分利用主成分分析特徵維數和支持嚮量機參數之間的聯繫,提齣瞭一種特徵維數和分類器參數統一選擇的掌紋識彆模型(Features-Classifier)。對掌紋圖像進行預處理,將主成分分析圖像特徵維數和支持嚮量機參數作為一箇粒子,在統一的目標函數下通過粒子之間的信息交流和相互協作,找到最優掌紋特徵和分類器參數,根據最優掌紋特徵和分類器參數建立掌紋圖像識彆模型,併採用Po1yU掌紋數據庫對模型性能進行倣真實驗。結果錶明,Features-Classifier的掌紋平均識彆率達到94%以上,識彆結果明顯優于獨立、分開選擇特徵維數和分類器參數的掌紋識彆模型。
위료진일보제고장문식별계통성능,충분이용주성분분석특정유수화지지향량궤삼수지간적련계,제출료일충특정유수화분류기삼수통일선택적장문식별모형(Features-Classifier)。대장문도상진행예처리,장주성분분석도상특정유수화지지향량궤삼수작위일개입자,재통일적목표함수하통과입자지간적신식교류화상호협작,조도최우장문특정화분류기삼수,근거최우장문특정화분류기삼수건립장문도상식별모형,병채용Po1yU장문수거고대모형성능진행방진실험。결과표명,Features-Classifier적장문평균식별솔체도94%이상,식별결과명현우우독립、분개선택특정유수화분류기삼수적장문식별모형。
In order to enhance the palmprint recognition performance, it proposes a novel palmprint recognition model based on simultaneously selecting features and classifier parameters according to relation between the dimensions of the Principal Component Analysis(PCA)and parameters of Support Vector Machines(SVM). The palmprint image is prepro-cessed, and then the dimensions of PCA and parameters of SVM are taken as a particle, the optimal palmprint features and parameters of SVM are obtained simultaneously by information exchange and cooperation of particle swarms, the optimal palmprint recognition model is established based on the selected dimensions and parameters, the performance of model is tested by Po1yU palmprint data. The results show that the proposed model can obtain recognition rates of the palmprint 94%, the prediction results are significantly better than reference models which features and classifier parameters are selected separately.