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Equisolid Fisheye Stereovision Calibration and Point Cloud Computation
Fisheye stereovision binocular 3D reconstruction point cloud dynamic programming matching
2014/4/22
This paper deals with dense 3D point cloud computation of urban environments around a vehicle. The idea is to use two fisheye views to get 3D coordinates of the surrounding scene's points. The first c...
INTEGRATED GEOREFERENCING OF STEREO IMAGE SEQUENCES CAPTURED WITH A STEREOVISION MOBILE MAPPING SYSTEM – APPROACHES AND PRACTICAL RESULTS
Mobile Mapping Georeferencing GPS/INS, Sequences Bundle Adjustment Matching
2014/4/25
Stereovision based mobile mapping systems enable the efficient capturing of directly georeferenced stereo pairs. With today's camera and onboard storage technologies imagery can be captured at high da...
STEREOVISION MOBILE MAPPING: SYSTEM DESIGN AND PERFORMANCE EVALUATION
Mobile Mapping Stereoscopic Multisensor Georeferencing Radiometric Calibration Matching
2014/4/28
In this paper we introduce a state-of-the-art stereovision mobile mapping system with different stereo imaging sensors and present a series of performance tests carried out with this system. The aim o...
AUTOMATED 3D ROAD SIGN MAPPING WITH STEREOVISION-BASED MOBILE MAPPING EXPLOITING DISPARITY INFORMATION FROM DENSE STEREO MATCHING
Mobile Mapping Point Cloud Extraction Classification Matching Infrastructure Inventory
2014/4/28
This paper presents algorithms and investigations on the automated detection, classification and mapping of road signs which
systematically exploit depth information from stereo images. This approac...
AUTOMATIC POINT CLOUD GENERATION AND REGISTRATION WITH A STEREOVISION SLIT-SCANNER
photogrammetric scanning surface reconstruction surface registration
2014/6/5
In this paper, a fully automatic 3D surface scanner, from point collection to point cloud registration and smoothing, is presented. The system is composed by a camera pair, which is calibrated automat...
基于双目视觉技术的猪生长监测系统标定模式（Calibration Mode of Pig Growth Inspecting System Based on Binocular Stereovision Technology）
猪 生长检测 双目视觉 标定模式
2009/11/3
针对养猪生产中对猪体生长监测的需求，设计了基于双目视觉的猪生长监测系统的软、硬件，实现了基于非线性摄像机模型双目视觉系统的标定算法。根据摄像机成像原理建立了基于最小二乘法的空间点坐标检测算法。利用标定和检测算法，从标定板图像数目、标定板位置、旋转角度3个方面对系统的标定模式进行了研究。结果表明：利用19幅以上标定板图像能够得到稳定的标定结果；不同位置的标定板图像对检测精度影响较大，应当在全视场内采...
基于双目立体视觉的苗期玉米株形测量（Measurement of Maize Seedling Morphological Traits Based on Binocular Stereovision）
玉米 株形特征 测量
2009/8/11
将田间正常生长的待测玉米植株带土移至测定台上，标定双目立体视觉系统，提取、分割叶片图像，以Douglas-Peucker多边形法逼近叶片边缘,去除两幅对应图像中没有匹配关系的多边形顶点，结合投影矩阵计算出叶片边缘点的三维坐标。分别投影叶片边缘点到植株平面和植株水平平面，对投影的离散点分段二次拟合、Cardinal样条插值，得到代表叶片形状的曲线，计算出叶长、叶片着生高度、茎叶夹角、叶片方位角等株形...