本文選題：卡通動(dòng)畫(huà) + 藝術(shù)規(guī)則�。� 參考：《蘇州大學(xué)》2010年碩士論文

【摘要】： 三維卡通人臉動(dòng)畫(huà)是非真實(shí)感繪制領(lǐng)域的一個(gè)新分支,它是圖形學(xué)的一個(gè)研究熱點(diǎn)。隨著動(dòng)漫影視、電子游戲、虛擬會(huì)議等方面的飛速發(fā)展,對(duì)這一領(lǐng)域的研究逐漸增多。本文闡述了卡通人臉動(dòng)畫(huà)的研究現(xiàn)狀并分析了各自的優(yōu)缺點(diǎn),在卡通人臉動(dòng)畫(huà)的三個(gè)重要部分上分別做出了一些工作。本文的主要工作和貢獻(xiàn)體現(xiàn)在以下幾個(gè)方面: 首先,提出了基于藝術(shù)規(guī)則指導(dǎo)的三維卡通模型重建算法。該方法將藝術(shù)家常用的夸張方法引入到模型夸張中,通過(guò)檢測(cè)藝術(shù)家常用的臉部夸張部位,找出需要夸張的地方,并進(jìn)行一定程度的夸張。在利用ASM特征點(diǎn)定位時(shí),本文提出將額頭上的特征點(diǎn)用其余的點(diǎn)根據(jù)人臉幾何分布插值來(lái)確定,提高了特征點(diǎn)的準(zhǔn)確度。 其次,提出了單幅照片的紋理卡通化方法。該方法將人臉區(qū)域?qū)R到卡通照片模板上,并進(jìn)行融合,通過(guò)調(diào)節(jié)融合系數(shù)來(lái)改變?nèi)四樋ㄍɑ某潭取２捎貌此煞匠倘诤系姆椒▽⑷四槄^(qū)域融合到背景中來(lái)。為了提高融合速度,提出了一種快速紋理插值融合算法,預(yù)先根據(jù)卡通模板計(jì)算每個(gè)背景像素點(diǎn)所對(duì)應(yīng)的皮膚像素點(diǎn)。實(shí)驗(yàn)結(jié)果證明,該方法不僅大大提高了融合速度,而且取得了較好的紋理融合效果。 最后,采用非特定模型的動(dòng)畫(huà)參數(shù)轉(zhuǎn)換方法,把別的模型中的動(dòng)畫(huà)參數(shù)通過(guò)轉(zhuǎn)換變?yōu)檫m合本文模型的動(dòng)畫(huà)參數(shù),實(shí)現(xiàn)三維卡通動(dòng)畫(huà)。在計(jì)算本文模型中頂點(diǎn)的動(dòng)畫(huà)參數(shù)時(shí),利用該頂點(diǎn)與三角片元的三個(gè)頂點(diǎn)的位置關(guān)系來(lái)計(jì)算相應(yīng)的動(dòng)畫(huà)參數(shù),避免了傳統(tǒng)方法經(jīng)常出現(xiàn)的動(dòng)畫(huà)參數(shù)為零的情形。實(shí)驗(yàn)結(jié)果證明,本文的計(jì)算方法更加合理,卡通動(dòng)畫(huà)效果比較自然,能夠較好的滿足應(yīng)用的需要。
[Abstract]:Three-dimensional cartoon face animation is a new branch in the field of non-realistic rendering, and it is a research hotspot in graphics. With the rapid development of animation, video, video game, virtual conference and so on, the research on this field is increasing gradually. This paper describes the current situation of cartoon face animation, analyzes their advantages and disadvantages, and does some work on three important parts of cartoon face animation. The main work and contributions of this paper are as follows: firstly, a 3D cartoon model reconstruction algorithm based on art rules is proposed. This method introduces the commonly used hyperbole method into the model exaggeration, by detecting the commonly used facial hyperbole part of the artist, finds out the place where the exaggeration is needed, and exaggerates to a certain extent. In order to improve the accuracy of feature points, the feature points on the forehead are determined by interpolation of the other points according to the geometric distribution of the face when the ASM feature points are located. Secondly, a method of texture card generalization for a single photo is proposed. The face region is aligned to the cartoon photo template, and the fusion coefficient is adjusted to change the degree of face card generalization. The Poisson equation fusion method is used to fuse the face region into the background. In order to improve the fusion speed, a fast texture interpolation fusion algorithm is proposed, in which the skin pixels corresponding to each background pixel are calculated in advance according to the cartoon template. Experimental results show that the proposed method not only improves the fusion speed, but also achieves a good texture fusion effect. Finally, the animation parameters in other models are transformed into the animation parameters suitable for the model in this paper, and the 3D cartoon animation is realized by using the method of non-specific model animation parameter conversion. When calculating the animation parameters of the vertex in this paper, the position relationship between the vertex and the three vertices of the triangular cell is used to calculate the corresponding animation parameters, thus avoiding the situation that the animation parameters are zero which is often found in the traditional method. Experimental results show that the calculation method is more reasonable, cartoon animation effect is more natural, and can meet the needs of application.
【學(xué)位授予單位】：蘇州大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2010
【分類號(hào)】：TP391.41

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本文編號(hào)：2055275