本文選題：光學(xué)測(cè)量 + 相位測(cè)量輪廓術(shù)�。� 參考：《光子學(xué)報(bào)》2017年03期

【摘要】：提出一種將傅里葉與相移法結(jié)合的三維物體快速測(cè)量方法.通過(guò)時(shí)域提取精確的均值包絡(luò)與頻域?yàn)V波結(jié)合的方法預(yù)處理?xiàng)l紋,結(jié)合基于相位半角的兩步相移,只需要兩幅相移條紋圖,即可得到精確的相位信息.通過(guò)仿真和實(shí)驗(yàn)將本文方法與現(xiàn)有方法進(jìn)行了分析對(duì)比,實(shí)驗(yàn)結(jié)果證明,本文方法可以獲得優(yōu)于現(xiàn)有兩步相移方法的準(zhǔn)確度,一般測(cè)量環(huán)境下的均方根誤差在3×10~(-3) rad以內(nèi).本文提出的方法對(duì)噪聲和表面突變不敏感,具有魯棒性好、運(yùn)算速度快、準(zhǔn)確度高等優(yōu)點(diǎn),在三維快速測(cè)量領(lǐng)域有較高的應(yīng)用價(jià)值.
[Abstract]:In this paper, a fast measurement method of three-dimensional object is presented, which combines Fourier and phase shift method. By extracting the accurate mean envelope in time domain and filtering in frequency domain, the fringe can be preprocessed, combined with the two-step phase shift based on the phase half-angle, and the accurate phase information can be obtained by only two phase shift fringes. The simulation and experiments show that the proposed method is more accurate than the existing two-step phase-shift method. The root mean square error in general measurement environment is within 3 脳 10 ~ (-3) rad. The method proposed in this paper is insensitive to noise and surface mutation, and has the advantages of good robustness, fast operation speed and high accuracy. It has high application value in the field of 3D fast measurement.
【作者單位】： 河北工業(yè)大學(xué)機(jī)械工程學(xué)院;
【基金】：國(guó)家自然科學(xué)基金(Nos.51675160,61171048) 河北省應(yīng)用基礎(chǔ)研究計(jì)劃重點(diǎn)基礎(chǔ)研究項(xiàng)目(No.15961701D) 河北省高層次人才項(xiàng)目(No.GCC2014049) 河北省人才工程培養(yǎng)經(jīng)費(fèi)項(xiàng)目(No.A201500503) 天津市科技計(jì)劃項(xiàng)目(No.15PTSYJC00260)資助~~
【分類號(hào)】：TP391.41
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本文編號(hào)：1828510