摘要
本論文提出應用至DOC-2機器人上之代數教學與數字影像辨識系統。使用者可藉由磁鐵式貼片文字或手寫文字在白板上與機器人溝通，進行代數問答教學。教學的內容包含加法、減法、乘法、除法、一元一次方程式以及二元一次聯立方程式。本論文所使用的白板為經過邊框標記加工的市售白板。文字則有兩種方式，一為吾人自製的磁鐵式貼片文字，二為手寫式文字。兩種文字辨識系統所能夠辨識的對象包含0~9之數字，加減乘除等號運算符號以及變數代號a和b共17種符號。磁鐵式貼片文字共有兩份34個，手寫式文字則限定用黑色白板筆書寫，使用前須確定所使用的文字，進行切換辨識系統。兩種文字都以白板為載體，標示代數式，經由DOC-2機器人辨識後將答案以語音的方式讀出，達到代數教學的目的。

Abstract
This thesis proposes a system of algebra teaching and numeric image recognition, which is integrated on the DOC-2 intelligent robot. For proceeding question-and-answer algebra teaching, users communicate with the robot by adhering printed numerals or writing numerals on the whiteboard. The categories of the algebra teaching include addition, subtraction, multiplication, division, one-variable linear equation and two-variable linear equations. The whiteboard used in this thesis is the marketed whiteboard whose frame has been pre-processed. As to the numerals, they are in two forms: the magnets of numerals and the handwritten numerals. 17 signs can be recognized by these two recognition systems of numerals, including numerals 0 to 9, the operational signs, such as the plus sign(＋), the subtraction sign(－), the multiplication sign(×), the division sign(÷), the equal sign(＝), and two variables “a” and “b”. There are two sets of printed numerals, making the total number of numerals for determination to 34. The handwritten numerals are limited to be written by whiteboard markers in black color only. Users should define the recognition system first according to the form of the numerals; printed or hand-writing. Then through the developed recognition system, the robot can teach algebra in an interactive manner.

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