教師著作
Permanent URI for this collectionhttp://rportal.lib.ntnu.edu.tw/handle/20.500.12235/31268
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Item 影像式自動液位監測系統(2008-06-07) 盧明智; 王地河; 許陳鑑; 蔡政沛; 闕士結本研製作品只要丟一片圓形浮板於待測液體儲存槽中，圓形浮板會隨液位的高低而升降， 而其影像圓形的面積亦隨液位高低而改變，把圓形浮板影像圖形的面積，轉換成該圓形浮板影像 圖形的直徑，就能輕易地以簡單的公式，完成液位高低的量測，本研製作品將有結構簡單，操作 方便的優點。更重要的是，除了液位高低(存量)的量測外，從所攝取的影像畫面就能同時觀測到 儲存槽內部儲存物的儲存狀態或反應情形。 本研製作品已真正實現非接觸式的量測，不像超音波或壓力式等液位量系統，必須把感測器 設量於儲存槽之內，因而可以避免漏電或氣爆等工安事故的發生，本項研製作品已取得三項中華 民國發明專利。Item Area measurement system using a single camera(2006-11-11) C.-C. Chen; T.-H. Wang; M.-C. Lu; W.-Y. WangIn this paper, we propose a new method to measure area using only a single CCD camera in different distances. Two parallel laser beams are established to serve as the basis for horizontal length measurement. A single horizontal scanning line of the CCD image is only required for the area measurement. Based on the pixel numbers between two projected points within a CCD image, which represent the resolution of horizontal length, the actual area can be derived by counting the pixel numbers occupied by the image of the object to be measured on the CCD image. Our research results are merited with quick measurement speed, simple system structures and there will be no necessity to adopt image recognizing or signal analysis techniques to calculate the area from different photographing distances.Item Image-Based Height Measuring System(2007-08-26) W.-Y. Wang; M.-C. Lu; C.-T. Chuang; J.-C. ChengIn this paper, a new distance measuring method to measure the height of a building is proposed. Traditionally, distance measuring using CCD is based on the parallax method. This paper puts forward a method of measuring the width and height of a building regardless of the distance of the camera or the angle between optical axis and ground. By using two parallel laser spots, the distance from the camera to the building and the height of the building can be determined in a single photo session and with a single picture. Experiments show that even highly non-orthogonal pictures taken from a short distance can be used to determine the height of a building. The result will not be affected by the angle between the camera’s optical axis, the ground and the measured surface.Item 亮點投射法之影像式距離量測(2008-06-07) 盧明智; 王偉彥; 黃敏祥; 張沛鈞; 郭庭男本研究所研製的影像式距離量測，以兩支可見光雷射筆作為自動調整量測解析度的量尺，突破一般以雙CCD攝影機或於待測點設置參考標的的量測方法。僅以一張影像畫面，就能實現非接觸式的距離量測功能，並能於影像畫面產生，像素值與距離轉換的標示刻度。量測原理乃以兩道平行雷射光束於待測面上產生兩個投射亮點，其影像畫面之間相隔的像素值，隨攝影距離之改變而改變的特性，只要確認這兩個亮點在影像畫面中，相隔的像素值，就能以簡單的公式完成單一攝影機，影像式距離量測的功能。本項研製之作品，已取得中華民國發明專利，其相關應用，也已取得另外四項發明專利。對機械人避障亦能提供另一項創新的偵測方法。