TY - JOUR AU - Wang, Xijuan PY - 2017/07/21 Y2 - 2024/03/28 TI - A Human Body Gait Recognition System Based on Fourier Transform and Quartile Difference Extraction JF - International Journal of Online and Biomedical Engineering (iJOE) JA - Int. J. Onl. Eng. VL - 13 IS - 07 SE - Papers DO - 10.3991/ijoe.v13i07.7294 UR - https://online-journals.org/index.php/i-joe/article/view/7294 SP - pp. 129-139 AB - <span style="font-family: 'Times New Roman',serif; font-size: 10.5pt; mso-fareast-font-family: 'Times New Roman'; mso-fareast-language: DE; mso-bidi-font-weight: bold; mso-ansi-language: EN-US; mso-bidi-language: AR-SA;" lang="EN-US">A research method of gait recognition based on feature combination</span><span style="font-family: 'Times New Roman',serif; font-size: 10.5pt; mso-fareast-font-family: 宋体; mso-fareast-language: ZH-CN; mso-bidi-font-weight: bold; mso-ansi-language: EN-US; mso-bidi-language: AR-SA;" lang="EN-US"> is proposed, which includes the wavelet transform (WT), Fourier transform (FT) and the quartile difference,</span><span style="font-family: 'Times New Roman',serif; font-size: 10.5pt; mso-fareast-font-family: 'Times New Roman'; mso-fareast-language: ZH-CN; mso-bidi-font-weight: bold; mso-ansi-language: EN-US; mso-bidi-language: AR-SA;" lang="EN-US"> to explore the</span><span style="font-family: 'Times New Roman',serif; font-size: 10.5pt; mso-fareast-font-family: 'Times New Roman'; mso-fareast-language: DE; mso-bidi-font-weight: bold; mso-ansi-language: EN-US; mso-bidi-language: AR-SA;" lang="EN-US"> gait recognition system in Internet of things human body sensor based on </span><span style="font-family: 'Times New Roman',serif; font-size: 10.5pt; mso-fareast-font-family: 宋体; mso-fareast-language: ZH-CN; mso-bidi-font-weight: bold; mso-ansi-language: EN-US; mso-bidi-language: AR-SA;" lang="EN-US">smart phone</span><span style="font-family: 'Times New Roman',serif; font-size: 10.5pt; mso-fareast-font-family: 'Times New Roman'; mso-fareast-language: DE; mso-bidi-font-weight: bold; mso-ansi-language: EN-US; mso-bidi-language: AR-SA;" lang="EN-US">.</span><span style="font-family: 'Times New Roman',serif; font-size: 10.5pt; mso-fareast-font-family: 宋体; mso-fareast-language: ZH-CN; mso-bidi-font-weight: bold; mso-ansi-language: EN-US; mso-bidi-language: AR-SA;" lang="EN-US"> It can extract the low-dimensional gait parameters of the acceleration signal, and these gait parameters can reflect the movement characteristics. </span><span style="font-family: 'Times New Roman',serif; font-size: 10.5pt; mso-fareast-font-family: 'Times New Roman'; mso-fareast-language: ZH-TW; mso-bidi-font-weight: bold; mso-ansi-language: ZH-TW; mso-bidi-language: AR-SA;" lang="ZH-TW">Then, they are combined into </span><span style="font-family: 'Times New Roman',serif; font-size: 10.5pt; mso-fareast-font-family: 宋体; mso-fareast-language: ZH-CN; mso-bidi-font-weight: bold; mso-ansi-language: EN-US; mso-bidi-language: AR-SA;" lang="EN-US">f</span><span style="font-family: 'Times New Roman',serif; font-size: 10.5pt; mso-fareast-font-family: 'Times New Roman'; mso-fareast-language: ZH-TW; mso-bidi-font-weight: bold; mso-ansi-language: ZH-TW; mso-bidi-language: AR-SA;" lang="ZH-TW">eature vector </span><span style="font-family: 'Times New Roman',serif; font-size: 10.5pt; mso-fareast-font-family: 宋体; mso-fareast-language: ZH-CN; mso-bidi-font-weight: bold; mso-ansi-language: EN-US; mso-bidi-language: AR-SA;" lang="EN-US">to</span><span style="font-family: 'Times New Roman',serif; font-size: 10.5pt; mso-fareast-font-family: 'Times New Roman'; mso-fareast-language: ZH-TW; mso-bidi-font-weight: bold; mso-ansi-language: ZH-TW; mso-bidi-language: AR-SA;" lang="ZH-TW"> identif</span><span style="font-family: 'Times New Roman',serif; font-size: 10.5pt; mso-fareast-font-family: 宋体; mso-fareast-language: ZH-CN; mso-bidi-font-weight: bold; mso-ansi-language: EN-US; mso-bidi-language: AR-SA;" lang="EN-US">y</span><span style="font-family: 'Times New Roman',serif; font-size: 10.5pt; mso-fareast-font-family: 'Times New Roman'; mso-fareast-language: ZH-TW; mso-bidi-font-weight: bold; mso-ansi-language: ZH-TW; mso-bidi-language: AR-SA;" lang="ZH-TW"> by a pattern recognition algorithm.</span><span style="font-family: 'Times New Roman',serif; font-size: 10.5pt; mso-fareast-font-family: 'Times New Roman'; mso-fareast-language: ZH-TW; mso-bidi-font-weight: bold; mso-ansi-language: ZH-TW; mso-bidi-language: AR-SA;" lang="ZH-TW">Finally, the experimental verification is carried out in the experimental system.</span><span style="font-family: 'Times New Roman',serif; font-size: 10.5pt; mso-fareast-font-family: 宋体; mso-fareast-language: ZH-CN; mso-bidi-font-weight: bold; mso-ansi-language: EN-US; mso-bidi-language: AR-SA;" lang="EN-US"> The results show that</span><span style="font-family: 'Times New Roman',serif; font-size: 10.5pt; mso-fareast-font-family: 宋体; mso-fareast-language: ZH-CN; mso-bidi-font-weight: bold; mso-ansi-language: EN-US; mso-bidi-language: AR-SA;" lang="EN-US">this </span><span style="font-family: 'Times New Roman',serif; font-size: 10.5pt; mso-fareast-font-family: 'Times New Roman'; mso-fareast-language: ZH-TW; mso-bidi-font-weight: bold; mso-ansi-language: ZH-TW; mso-bidi-language: AR-SA;" lang="ZH-TW">gait recognition </span><span style="font-family: 'Times New Roman',serif; font-size: 10.5pt; mso-fareast-font-family: 宋体; mso-fareast-language: ZH-CN; mso-bidi-font-weight: bold; mso-ansi-language: EN-US; mso-bidi-language: AR-SA;" lang="EN-US">method </span><span style="font-family: 'Times New Roman',serif; font-size: 10.5pt; mso-fareast-font-family: 'Times New Roman'; mso-fareast-language: ZH-TW; mso-bidi-font-weight: bold; mso-ansi-language: ZH-TW; mso-bidi-language: AR-SA;" lang="ZH-TW">simplifies the processing flow to a certain extent, </span><span style="font-family: 'Times New Roman',serif; font-size: 10.5pt; mso-fareast-font-family: 宋体; mso-fareast-language: ZH-CN; mso-bidi-font-weight: bold; mso-ansi-language: EN-US; mso-bidi-language: AR-SA;" lang="EN-US">and </span><span style="font-family: 'Times New Roman',serif; font-size: 10.5pt; mso-fareast-font-family: 'Times New Roman'; mso-fareast-language: ZH-TW; mso-bidi-font-weight: bold; mso-ansi-language: ZH-TW; mso-bidi-language: AR-SA;" lang="ZH-TW">improves the recognition accuracy</span><span style="font-family: 'Times New Roman',serif; font-size: 10.5pt; mso-fareast-font-family: 宋体; mso-fareast-language: ZH-CN; mso-bidi-font-weight: bold; mso-ansi-language: EN-US; mso-bidi-language: AR-SA;" lang="EN-US">. In conclusion, </span><span style="font-family: 'Times New Roman',serif; font-size: 10.5pt; mso-fareast-font-family: 宋体; mso-fareast-language: ZH-CN; mso-ansi-language: EN-US; mso-bidi-language: AR-SA;" lang="EN-US">the algorithm has a good effect, and can identify the gait behavior with high precision.</span> ER -