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The defense date of the thesis is 2015-01-21
The current date is 2019-02-18
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URN etd-0121115-005639 Statistics This thesis had been viewed 829 times. Download 4 times. Author Chun-Ting Chen Author's Email Address No Public. Department Computer Science and Enginerring Year 2014 Semester 1 Degree Master Type of Document Master's Thesis Language zh-TW.Big5 Chinese Page Count 49 Title A Study on Image Sensor Module Fast Manual Focus Adjustment Support System Keyword Focus adjustment Gradient Edge detection Edge detection Gradient Focus adjustment Abstract Most of the mobile device imaging module manufactures utilize automatic focusing adjustment equipment to perform the focus adjustment in mass production phase. However, the automatic focusing adjustment equipment are very expensive, it is generally not suitable to use them in preproduction or test production phase. The manual focus adjustment facilities are still needed in this kind of situation. Manual adjustment requires experienced workers to precisely adjust the focus to the most appropriate focal length. In this research, image processing techniques are exploded to help the works to accelerate the manual focusing adjustment process.
In this research, we study how to use a simple and fast way to help manual focus adjustment. We use the basic image gradient operation to provide a guide for the workers so they can adjust the focus more quickly and precisely. We also use nine corner gradients to check for the tilt of the lenses. Experimental results show that this system can provide a supporting mechanism to the workers such that they can adjust the focus much fast and accurate.
Advisor Committee Tsang-Long Pao - advisor
Files Date of Defense 2014-11-11 Date of Submission 2015-01-21