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基於 kinect 的表情辨識 系統 kinect -based Facial Expression Recognition System 謝宜吟

基於 kinect 的表情辨識 系統 kinect -based Facial Expression Recognition System 謝宜吟 Advisor : Damon Shing -Min Liu Department of Computer Science and Information Engineering, National Chung Cheng University, Taiwan. Introduction. Results 這是在 happy 時的表情.

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基於 kinect 的表情辨識 系統 kinect -based Facial Expression Recognition System 謝宜吟

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  1. 基於kinect的表情辨識系統 kinect-based Facial Expression Recognition System 謝宜吟 Advisor: Damon Shing-Min Liu Department of Computer Science and Information Engineering, National Chung Cheng University, Taiwan Introduction Results 這是在happy時的表情 使用kinect for xbox 360作表情偵測,專題設計可以偵測的表情有六種,分別是高興,生氣,驚訝,傷心,害怕,另外還有一個表中性表情,先使用kinectsdk的tool抓取臉部影像,特徵點,並將其轉換成相對應的臉部圖形,而從此sdk的各項參數值,設計兩個判別表情的標準,再把兩個標準分不同情形使用,以達到判別表情的功能。 kinect xbox360 Methodology 由kinectsdk 1.5 人臉追蹤,追蹤人臉的87個特徵點,從這87個點傳回一組陣列,而這些點傳回後用座標定義其位置, 並設定三維系統(x,y,z) 來定義頭的姿勢,用三個參數來定義,分別為俯角,(pitch) ,滾動角(roll)和偏航角(yaw),另外模式一代表教不嚴苛的條件,設為不穩定的模式,而模式二為較嚴苛的條件,穩定的模式,而讓表情判別使用下圖(6)的模式,當一開始操作時,由模式一也就是不穩定的模式開始判斷,設計每個表情對應到一個初始為零的陣列c,當判別到有表情變化時分別在該表情陣列c加一,當陣列c的其中一個直到達三時,視為判別到一個表情,遂輸出該表情,陣列歸零並進入模式二,也就是穩定模式,而在穩定模式中如果判別到一次表情變化,就進入模式一再重新開始判別表情,以此類推。 Conclusions 在這個專題裡,經由實驗,體會到了在活動中的人表情時時刻刻都在變化,想要判定他是什麼表情,會因為他的瞬間表情變化,而造成判別上的變數很大,穩定度也會受影響,而每個人的表情雖然有共通性但卻不盡相同,所有人的五官動作敏感度不一樣,如果使用的標準要每一項都達成的話,會不容易達成。 Reference [1]Real-Time object Detection and Tracking using Directional Edge Mapes 2007 王財德 [2] micosoft開發人員網路kinect windows sdk face tracking [3] Face Tracking and Recognition with Visual Constraints in Real-World Videos Minyoung Kim1, Sanjiv Kumar, Vladimir Pavlovic, and Henry Rowley [4] 動畫狂想曲—人臉 電腦繪圖技術解密鄭亦珊 馬萬鈞 林宏祥 熊士豪 歐陽明 [5] An Optical-Flow-Based Automatic Expression Recognition System 謝怡竹

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