本文選題：多譜段 + 成像器件��； 參考：《南京大學(xué)》2017年碩士論文

【摘要】：傳統(tǒng)的可見(jiàn)光相機(jī)在成像過(guò)程中只記錄了(R,G,B)三個(gè)顏色通道的分量,對(duì)于人眼來(lái)說(shuō)這是足夠的,但是這遠(yuǎn)不能精確表示光線在各個(gè)波長(zhǎng)分量上的響應(yīng),而且容易受環(huán)境光的影響,安全監(jiān)控、醫(yī)療診斷等諸多領(lǐng)域都很受限制,非可見(jiàn)光波段成像器件以及光譜成像器件可以記錄(R,G,B)以外的譜段信息,可以彌補(bǔ)普通可見(jiàn)光相機(jī)的缺陷,但是目前的相機(jī)在成像過(guò)程中的投影變換使得所得照片失去了深度(z)信息,這使得利用單相機(jī)進(jìn)行定位、診斷等工作也需要特殊的校準(zhǔn)等工作才能進(jìn)行;利用多光譜成像器件進(jìn)行軍事安全、環(huán)境監(jiān)測(cè)、生物科學(xué)方面的工作也需要進(jìn)行精準(zhǔn)的校準(zhǔn)工作。本文圍繞如何對(duì)各波段成像傳感器以及高光譜成像器進(jìn)行準(zhǔn)確校準(zhǔn)展開(kāi)研究,主要工作和創(chuàng)新點(diǎn)包括以下幾個(gè)方面:1.提出了一種對(duì)日盲紫外成像器件進(jìn)行校準(zhǔn)并進(jìn)行定位的方法,與常用方法相比,能夠克服日盲紫外成像器件因分辨率以及色彩信息缺乏而導(dǎo)致的問(wèn)題,能夠在參考點(diǎn)丟失的情況下進(jìn)行補(bǔ),使系統(tǒng)更為魯棒,實(shí)現(xiàn)了日盲紫外器件高精度校準(zhǔn)與定位。2.提出了一種利用雙目紅外成像器件進(jìn)行高精度定位反光醫(yī)學(xué)小球的方法,針對(duì)具體的應(yīng)用場(chǎng)景,能夠更準(zhǔn)確地計(jì)算成像小球的空間坐標(biāo),使得定位更加準(zhǔn)確,實(shí)現(xiàn)了紅外器件高精度全自動(dòng)化校準(zhǔn)與定位。3.提出了一種針對(duì)棱鏡-掩膜式多光譜采集相機(jī)的校準(zhǔn)方式,與常用方法相比,能夠準(zhǔn)確進(jìn)行雙相機(jī)配準(zhǔn),提高光譜分辨率和和整個(gè)穩(wěn)定性,對(duì)于光譜數(shù)據(jù)的準(zhǔn)確性提高有顯著的作用。
[Abstract]:Traditional visible-light cameras only record the components of the three color channels in the imaging process, which is sufficient for the human eye, but it is far from accurate enough to represent the response of the light to each wavelength component, and is vulnerable to the influence of ambient light. Security monitoring, medical diagnostics and many other areas are very restricted. Non-visible light band imaging devices and spectral imaging devices can record spectrum information other than the RPG-Bs, and can make up for the defects of ordinary visible light cameras. However, the current projection transformation of the camera in the imaging process results in the loss of the depth of the image information, which makes the use of a single camera for positioning, diagnosis and other work also needs special calibration work. The use of multispectral imaging devices for military security, environmental monitoring, and biological science also requires accurate calibration. This paper focuses on the accurate calibration of imaging sensors and hyperspectral imagers in each band. The main work and innovations include the following aspects: 1. A method for calibrating and locating solar blind ultraviolet imaging devices is proposed. Compared with common methods, it can overcome the problems caused by the lack of resolution and color information of solar blind ultraviolet imaging devices. It can make the system more robust when the reference point is lost, and realize the high-precision calibration and positioning of sunblind ultraviolet devices. In this paper, a method of high-precision positioning of reflective medical pellets with binocular infrared imaging devices is proposed. In view of the specific application scenarios, the spatial coordinates of imaging spheres can be calculated more accurately, and the positioning is more accurate. The high precision automatic calibration and positioning of infrared devices is realized. A calibration method for prism-mask multispectral acquisition camera is proposed. Compared with common methods, it can accurately register double cameras, improve spectral resolution and overall stability. It plays an important role in improving the accuracy of spectral data.
【學(xué)位授予單位】：南京大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類(lèi)號(hào)】：TP212

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本文編號(hào)：1929405