TH741.8 95021336一种带三维坐标测量的新型万能工具显微镜(108J)=A new type universal tool maker’s microscopewith 3D coordinate measurement[刊,中]/施召贤(上海光学仪器厂)//现代计量测试.—1994,(6).—9—11提出了一种带三维...TH741.8 95021336一种带三维坐标测量的新型万能工具显微镜(108J)=A new type universal tool maker’s microscopewith 3D coordinate measurement[刊,中]/施召贤(上海光学仪器厂)//现代计量测试.—1994,(6).—9—11提出了一种带三维坐标测量的新一代万能工具显微镜的构想。展开更多
Single-camera mobile-vision coordinate measurement is one of the primary methods of 3D-coordinate vision measurement, and coded target plays an important role in this system. A multifunctional coded target and its rec...Single-camera mobile-vision coordinate measurement is one of the primary methods of 3D-coordinate vision measurement, and coded target plays an important role in this system. A multifunctional coded target and its recognition algorithm is developed, which can realize automatic match of feature points, calculation of camera initial exterior orientation and space scale factor constraint in measurement system. The uniqueness and scalability of coding are guaranteed by the rational arrangement of code bits. The recognition of coded targets is realized by cross-ratio invariance restriction, space coordinates transform of feature points based on spacial pose estimation algorithm, recognition of code bits and computation of coding values. The experiment results demonstrate the uniqueness of the coding form and the reliability of recognition.展开更多
We present a high-definition （HD） 3D laparoscopic system including a dual channel optical system, two cameras, a camera control unit （CCU）, and an HD 3D monitor. This laparoscopic system is capable of outputting d...We present a high-definition （HD） 3D laparoscopic system including a dual channel optical system, two cameras, a camera control unit （CCU）, and an HD 3D monitor. This laparoscopic system is capable of outputting dual high-definition videos and providing vivid 3D images. A modified pinhole camera model is used for camera calibration and a new method of depth measurement to improve precision. The average error of depth measurement measured by experiment （about 1.13 mm） was small in proportion to the large range in distance of the system （10-150 mm）. The new method is applicable to any calibrated binocular vision system.展开更多
文摘TH741.8 95021336一种带三维坐标测量的新型万能工具显微镜(108J)=A new type universal tool maker’s microscopewith 3D coordinate measurement[刊,中]/施召贤(上海光学仪器厂)//现代计量测试.—1994,(6).—9—11提出了一种带三维坐标测量的新一代万能工具显微镜的构想。
文摘Single-camera mobile-vision coordinate measurement is one of the primary methods of 3D-coordinate vision measurement, and coded target plays an important role in this system. A multifunctional coded target and its recognition algorithm is developed, which can realize automatic match of feature points, calculation of camera initial exterior orientation and space scale factor constraint in measurement system. The uniqueness and scalability of coding are guaranteed by the rational arrangement of code bits. The recognition of coded targets is realized by cross-ratio invariance restriction, space coordinates transform of feature points based on spacial pose estimation algorithm, recognition of code bits and computation of coding values. The experiment results demonstrate the uniqueness of the coding form and the reliability of recognition.
基金Project supported by the National Key Technology R&D Program of China(Nos.2011BAI12B06 and 2012BAI14B06)the Fundamental Research Funds for the Central Universities,China(No.2013FZA5018)
文摘We present a high-definition （HD） 3D laparoscopic system including a dual channel optical system, two cameras, a camera control unit （CCU）, and an HD 3D monitor. This laparoscopic system is capable of outputting dual high-definition videos and providing vivid 3D images. A modified pinhole camera model is used for camera calibration and a new method of depth measurement to improve precision. The average error of depth measurement measured by experiment （about 1.13 mm） was small in proportion to the large range in distance of the system （10-150 mm）. The new method is applicable to any calibrated binocular vision system.
