電機工程學系
Permanent URI for this communityhttp://rportal.lib.ntnu.edu.tw/handle/20.500.12235/85
歷史沿革
本系成立宗旨在整合電子、電機、資訊、控制等多學門之工程技術，以培養跨領域具系統整合能力之電機電子科技人才為目標，同時配合產業界需求、支援國家重點科技發展，以「系統晶片」、「多媒體與通訊」、與「智慧型控制與機器人」等三大領域為核心發展方向，期望藉由學術創新引領產業發展，全力培養能直接投入電機電子產業之高級技術人才，厚植本國科技產業之競爭實力。
本系肇始於民國92年籌設之「應用電子科技研究所」，經一年籌劃，於民國93年8月正式成立，開始招收碩士班研究生，以培養具備理論、實務能力之高階電機電子科技人才為目標。民國96年8月「應用電子科技學系」成立，招收學士班學生，同時間，系所合一為「應用電子科技學系」。民國103年8月更名為「電機工程學系」，民國107年電機工程學系博士班成立，完備從大學部到博士班之學制規模，進一步擴展與深化本系的教學與研究能量。
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Item Image-Based System for Measuring Objects on an Oblique Surface(2010-05-06) Chen-Chien Hsu; Wei-Yen Wang; Yin-Yu Lu; Ming-Chih LuThis paper presents an image-based framework for measuring target objects on an oblique plane by using a single CCD camera and two parallel laser projectors beside the camera. Because of the alignment of the laser beams which form in parallel with the optical axis, projected spots in the image can be processed to establish relationships between distance and pixel counts between the projected spots in the image. Based on simple geometrical derivations without complex image processing, the proposed approach can measure the photographing distance, the distance between two arbitrary points on the oblique surface, and the incline angle. Experiment results have demonstrated the effectiveness of the proposed approach in measuring distant objects on an oblique plane.Item Distance and Angle Measurement of Distant Objects on an Oblique Plane Based on Pixel Variation of CCD Image(2010-05-06) Ming-Chih Lu; Chen-Chien Hsu; Yin-Yu LuThis paper presents an image-based system for measuring target objects on an oblique plane based on pixel variation of CCD images for digital cameras by referencing to two arbitrarily designated points in image frames. Based on an established relationship between the displacement of the camera movement along the photographing direction and the difference in pixel counts between reference points in the images, photographing distance between the camera and an object on the oblique target plane can be calculated via the proposed method.Item Measurement of the state of hole with one exposure using a single digital camera(2007-01-19) Chin-Tun Chuang; Ming-Chi Lu; Chen-Chien Hsu; Yin-Yu LuIn this paper, a novel measuring method for examining the state of a single drilled through-thickness hole in terms of exact surface roughness, precision tolerance, eccentricity is presented. The proposed method can also measure the diameter and depth of the hole with one exposure using a single digital camera. It is the aim of this paper to develop a new camera positioning control device which utilizes the forementioned measuring method to reduce expenses and process time during the measurement. We designed the apparatus according to an established frame of digital camera measurement parameters (height of optic position and width of horizontal view angle). The effectiveness of the proposed approach in measuring the diameter and depth of the through hole has been validated by using gray scale chromatic aberration of the image contour regions. This measurement system not only increases the accuracy of the measuring results but is also applicable with any kinds of digital cameras.Item Distance and Angle Measurement of Distant Objects on an Oblique Plane Based on Pixel Number Variation of CCD Images(Institute of Electrical and Electronics Engineers (IEEE), 2011-05-01) Chen-Chien Hsu; Ming-Chih Lu; Yin-Yu LuThis paper presents an image-based system for measuring target objects on an oblique plane based on pixel number variation of charge-coupled device images for digital cameras by referencing to two arbitrarily designated points in the image frame. Based on an established relationship between the displacement of the camera movement along the photographing direction and the variation in pixel counts between the reference points in the images, photographic distance and incline angle for objects lying on an oblique plane can be calculated via the proposed method. As a real-case application of the proposed approach, 2-D localization of target objects in robot soccer competitions is also demonstrated to show the effectiveness of the proposed approach. To allow the use of widely available digital zoom cameras for ranging and localization by the proposed method, a parameter equivalent to the displacement due to the camera movement is also investigated and derived in this paper.Item Image-Based System for Measuring Objects on an Oblique Plane and It Applications in Two-Dimensional Localization(IEEE Sensors Council, 2012-06-01) Ming-Chih Lu; Chen-Chien Hsu; Yin-Yu LuThis paper presents an image-based framework for measuring target objects on an oblique plane by using a single charge-coupled device camera and two laser projectors mounted in parallel beside the camera. Because of the alignment of the laser beams, which form in parallel with the optical axis of the camera, laser-projected spots in the image can be processed to establish relationships between distance and pixel counts of the projected spots in the image. Based on simple geometrical derivations without complex image processing, the proposed approach can successfully measure the photographic distance, the distance between two arbitrary points on the oblique surface, and the incline angle of the oblique surface. Thanks to its ranging capability, the proposed image-based measuring system is further applied to localize objects on a ground surface in addition to depth measurement. To demonstrate the feasibility of the proposed approach for practical applications, we propose a surveillance framework under which a pan-tilt-zoom camera tracks objects in an environment according to the 2-D localization results obtained via the proposed method. Experimental results have demonstrated the effectiveness of the proposed approach in distance measurement, as well as localization of objects on an oblique plane.Item Distance Measurement Based on Pixel Variation of CCD Images(Elsevier, 2009-10-01) Chen-Chien Hsu; Ming-Chih Lu; Wei-Yen Wang; Yin-Yu LuThis paper presents a distance measurement method based on pixel number variation of CCD images by referencing to two arbitrarily designated points in the image frames. By establishing a relationship between the displacement of the camera movement along the photographing direction and the difference in pixel count between reference points in the images, the distance from an object can be calculated via the proposed method. To integrate the measuring functions into digital cameras, a circuit design implementing the proposed measuring system in selecting reference points, measuring distance, and displaying measurement results on CCD panel of the digital camera is proposed in this paper. In comparison to pattern recognition or image analysis methods, the proposed measuring approach is simple and straightforward for practical implementation into digital cameras. To validate the performance of the proposed method, measurement results using the proposed method and ultrasonic rangefinders are also presented in this paper.Item Three Dimensional Measurement of Distant Objects Based on Laser-Projected CCD Images(Institution of Engineering and Technology (IET), 2009-05-01) Chen-Chien Hsu; Ming-Chih Lu; Wei-Yen Wang; Yin-Yu LuA novel measuring system based on a single CCD camera and two laser projectors to record images and perform three-dimensional measurement of a distant object is proposed here. Because of the alignment of the laser beams which form in parallel with the optical axis of the CCD camera, projected spots will appear on the same scan line in a CCD image. As a result processing of a single scan line rather than the whole image is only required to identify the projected spots in the CCD image. Complex computation of video signals of the whole image via either pattern recognition or image analysis methods is therefore circumvented. On the basic of an established relationship between the distance and pixel counts between the projected spots in the CCD image, the proposed system not only measures the distance from a distant object but also the length of two arbitrarily designated points on the object. To provide better accuracy, intrinsic parameters of the CCD camera are taken into consideration in the measurement. Furthermore, the effect of laser diffusion is also proved to be irrelevant to the measuring accuracy here. Experimental results have demonstrated that the proposed measuring method is capable of yielding accurate results of three-dimensional measurement for a distant object in a very responsive way.Item Diameter and Depth Measurement of Holes by a Single Camera(World Scientific and Engineering Academy and Society (WSEAS), 2007-05-01) Chin-Tun Chuang; Ming-Chih Lu; Chen-Chien Hsu; Yin-Yu LuItem Three Dimensional Measurement Based on Image Shift and Its Applications(World Scientific and Engineering Academy and Society (WSEAS), 2007-05-01) Ti-Ho Wang; Ming-Chih Lu; Chen-Chien Hsu; Yin-Yu Lu; Cheng-Pei TsaiItem Image Ruler and Its Applications in Distance and Area Measurement(World Scientific and Engineering Academy and Society (WSEAS), 2007-05-01) Ti-Ho Wang; Ming-Chih Lu; Chen-Chien Hsu; Yin-Yu Lu