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  本文選題：視線跟蹤 + 關(guān)注區(qū)域　； 參考：《華中科技大學(xué)》2009年碩士論文

【摘要】： 視線跟蹤技術(shù)就是通過實時地檢測觀測者眼睛的注視方向,得到其關(guān)注的興趣點的一種方法。隨著科學(xué)技術(shù)的逐漸發(fā)展,視線跟蹤系統(tǒng)可以廣泛應(yīng)用于視覺注意機(jī)制的研究、廣告分析、網(wǎng)頁設(shè)計、殘疾病人的輔助設(shè)備和心理分析,同時還可以作為一種新的計算機(jī)交互設(shè)備。目前大部分視線跟蹤系統(tǒng)都無法滿足實際的應(yīng)用要求,主要有以下幾個方面的原因:(1)跟蹤精度低,無法滿足實際需要;(2)很多視線跟蹤系統(tǒng)都必須嚴(yán)格要求試驗者保持頭部位置固定,給使用者帶來了很大的不便;(3)幀頻低,無法滿足實時的要求;(4)成本高,大部分自由頭動式視線跟蹤系統(tǒng)均使用了多個相機(jī)或采用了其他比較昂貴的輔助設(shè)備。 為了解決以上的問題,本文設(shè)計了一種新的視線跟蹤系統(tǒng)。該系統(tǒng)運用亞像素級圖像處理技術(shù),直接從暗瞳孔圖像中提取出精確的瞳孔耀點中心坐標(biāo),在保證了跟蹤精度的同時大大地提高了系統(tǒng)的幀頻;通過文中提出的3D視線跟蹤技術(shù),本系統(tǒng)能在單相機(jī)條件下進(jìn)行自由頭動式的視線跟蹤,不再要求試驗者頭部始終保持在固定的位置,給使用者帶來了很大的方便。 本文所做的工作成果有:(1)搭建了視線跟蹤系統(tǒng)的整個硬件平臺;(2)通過使用OpenCV計算機(jī)視覺庫,完成了整個圖像處理模塊的軟件編寫,并能得到很高的分割精度;(3)實現(xiàn)了基于角膜反射-瞳孔中心技術(shù)的2D視線跟蹤系統(tǒng),并通過改進(jìn)傳統(tǒng)3D視線跟蹤模型,開發(fā)了基于單相機(jī)的自由頭動式視線跟蹤系統(tǒng)軟件。
[Abstract]:Line of sight tracking is a method to detect the gaze direction of the eye and get the interesting point of the observer's attention in real time. With the development of science and technology, the sight tracking system can be widely used in the study of visual attention mechanism, advertising analysis, web design, assistive devices for patients with disabilities and psychological analysis. At the same time, it can be used as a new computer interactive device. At present, most of the line of sight tracking systems are unable to meet the practical application requirements, mainly because of the following reasons: 1) low tracking accuracy. Many line of sight tracking systems must strictly require the experimenter to keep the head position fixed, which brings great inconvenience to the user. The frame frequency is low, and the real-time requirements can not be met. Most free-headed moving line of sight tracking systems use multiple cameras or other more expensive auxiliary devices. In order to solve the above problems, a new line of sight tracking system is designed in this paper. The system uses sub-pixel image processing technology to extract the accurate center coordinates of pupil outliers directly from the dark pupil image, which ensures the tracking accuracy and greatly improves the frame frequency of the system. Through the 3D line of sight tracking technology proposed in this paper, the system can track the free head moving line of sight under the condition of a single camera, and no longer requires the tester to keep the head in a fixed position all the time, which brings great convenience to the user. The results of this paper are as follows: 1) the whole hardware platform of the line of sight tracking system is built. By using the OpenCV computer vision library, the software of the whole image processing module is written. The 2D line of sight tracking system based on corneal reflex and pupil center technology is realized. By improving the traditional 3D line of sight tracking model, the software of free head moving line of sight tracking system based on single camera is developed.
【學(xué)位授予單位】：華中科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2009
【分類號】：TP391.41

【參考文獻(xiàn)】

相關(guān)期刊論文 前4條

1 劉瑞安;靳世久;宋維;張希坤;吳曉榮;;單攝像機(jī)視線跟蹤[J];計算機(jī)應(yīng)用;2006年09期

2 孔濤,張N，

本文編號：1987092