Analysis and evaluation of a general camera model

Ryberg, Anders; Lennartson, Bengt; Christiansson, Anna-Karin; Ericsson, Mikael; Asplund, Lars

doi:10.1016/j.cviu.2011.06.009

Cited by 7 publications

(5 citation statements)

References 15 publications

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“…2 shows. Pðx c ; y c ; z c Þ in CCS is randomly picked out to camera imaging, it can be converted into ðu; vÞ in ICS with camera model, which is usually written as [24,25] u À u 0…”

Section: Camera Model Set Upmentioning

confidence: 99%

Calibration of visual model for space manipulator with a hybrid LM–GA algorithm

Jiang

Wang

2016

Mechanical Systems and Signal Processing

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“…2 shows. Pðx c ; y c ; z c Þ in CCS is randomly picked out to camera imaging, it can be converted into ðu; vÞ in ICS with camera model, which is usually written as [24,25] u À u 0…”

Section: Camera Model Set Upmentioning

confidence: 99%

Calibration of visual model for space manipulator with a hybrid LM–GA algorithm

Jiang

Wang

2016

Mechanical Systems and Signal Processing

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“…The following is an eye-in-hand robot as an example to illustrate the relationship between the coordinate systems of the system. Let {W} represent the base coordinate system of the robot, {E} represent the coordinate system of the robot end-effector, {C} represent the camera coordinate system, {I} represent the image plane coordinate system, and {O} represent the target object coordinate system [11]. The position relationship between the coordinate systems is shown in figure 3.…”

Section: Analysis Of the Relationship Between The Creation And Transfmentioning

confidence: 99%

Research on manipulator grasping method based on vision

Yang

et al. 2020

MATEC Web Conf.

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Aiming at the problem that the manipulator cannot grasp the object accurately when the robot changes the position and pose of the object in the process of static grasping, a set of manipulator grasping method research based on vision is proposed. Firstly, a set of camera detection and robot grasping system model is built. Secondly, each coordinate system is created for the grasping system, and the transformation relation between each coordinate system, matrix model and the quantity that needs to be calibrated are introduced in detail. Thirdly, the trajectory function from the image coordinate system to the coordinates of the manipulator is obtained through the direct linear method calibration experiment. Finally, the experimental platform for camera detection and manipulator grasping objects based on xavis was built, and the grasping success rate of the experimental platform was tested. The experimental results show that the grasping error rate of the experimental platform is within the control range. Therefore, the manipulator grasping method based on vision is of reference significance for engineering applications.

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“…Chen et al [17] calibrated a hybrid camera network consisting of catadioptric and perspective cameras using vanishing points. Compared to the catadioptric camera, a large number of different imaging models for fisheye camera [19][20][21][22][23][24][25][26][27][28][29] are developed because of its non-single view point (SVP). Hughes et al [22] computed the intrinsic and extrinsic parameters of a fisheye camera using the vanishing points of a planar checkerboard.…”

Section: Introductionmentioning

confidence: 99%

Using vanishing points to estimate parameters of fisheye camera

Zhu

Xü

Zhou

et al. 2013

IET Computer Vision

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This study presents an approach for estimating the fisheye camera parameters using three vanishing points corresponding to three sets of mutually orthogonal parallel lines in one single image. The authors first derive three constraint equations on the elements of the rotation matrix in proportion to the coordinates of the vanishing points. From these constraints, the rotation matrix is calculated under the assumption of the image centre known. The experimental results with synthetic images and real fisheye images validate this method. In contrast to the existing methods, the authors method needs less image information and does not know the three-dimensional reference point coordinates.

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Analysis and evaluation of a general camera model

Cited by 7 publications

References 15 publications

Calibration of visual model for space manipulator with a hybrid LM–GA algorithm

Calibration of visual model for space manipulator with a hybrid LM–GA algorithm

Research on manipulator grasping method based on vision

Using vanishing points to estimate parameters of fisheye camera

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