The line of sight to estimate method based on stereo vision

Wang, Changyuan; Li, Wang; Xue, Pengxiang

doi:10.1007/s11042-016-3283-8

Cited by 4 publications

(1 citation statement)

References 19 publications

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“…The paper by Y. Zhang et al [14] proposed a method based on reorganization of blocked discrete cosine transform (RBDCT) to separate the mixed images. The paper by C. Wang et al [1] presents a completely rely on spatial geometry calculations to achieve the user's line of sight placement calculation method. The paper by S. Wu et al [9] introduces an improved classification method based on sparse representation by representing the test samples through a dictionary.…”

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confidence: 99%

Guest Editorial: Multimedia Data Sensing and Analyzing of Surveillance Systems

Luo

Liu

et al. 2016

Multimed Tools Appl

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Big data is an emerging paradigm applied to datasets whose size is beyond the ability of commonly used software tools to capture, manage, and process the data within a tolerable elapsed time. With the pervasive of the definition of the smart city, the surveillance system, huge number of video surveillance devices such as surveillance cameras. Understanding the semantics of surveillance device has been an important component in many video-based applications. Manual annotation and tagging has been considered as a reliable source of video semantics. Unfortunately, manual annotation is time-consuming and expensive when dealing with huge scale of video data. However, the semantic gap between semantics and video visual appearance is still a challenge towards automated ontology-driven video annotation. Thus, automatically understanding raw videos solely based on their visual appearance becomes an important yet challenging problem. Thus, it is important to accurately describe the video content and enable the organizing and searching potential videos.

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mentioning

confidence: 99%

Guest Editorial: Multimedia Data Sensing and Analyzing of Surveillance Systems

Luo

Liu

et al. 2016

Multimed Tools Appl

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Characterization of chaotic mixing effects in hydrometallurgical leaching process based on deep learning

Li,

Zhang,

Zhang

et al. 2024

Chemical Engineering and Processing - Process Intensification

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Determine turntable coordinate system considering its non-orthogonality

Guo

Tang

et al. 2019

Review of Scientific Instruments

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In industrial measurement and laboratory research, many measured objects are placed on the three-axis turntable. In this paper, we propose a fast and practical method to determine the turntable coordinate system with the aid of spatial coordinate of point cloud data. By sphere fitting, plane fitting, and point projection, the scattered point cloud data are combined together to obtain initial direction vectors. Considering the non-orthogonality of turntable, the least two pairs of skew lines are used to compute the approximate turntable center. And the intersection angles and distances between each axis are given to judge the degree of non-orthogonality. Then, based on the approximate sphere center and the initial rotation vectors, the direction vectors are, respectively, optimized in a predefined order. An experimental system is set up to validate the proposed method. Attitude parameters computed by spatial point coordinates before and after turntable calibration are employed to give the quantitative evaluation results. And the total attitude errors in three axes motion forms all reduce, which demonstrates the effectiveness and practicality of the proposed method.

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The line of sight to estimate method based on stereo vision

Cited by 4 publications

References 19 publications

Guest Editorial: Multimedia Data Sensing and Analyzing of Surveillance Systems

Guest Editorial: Multimedia Data Sensing and Analyzing of Surveillance Systems

Characterization of chaotic mixing effects in hydrometallurgical leaching process based on deep learning

Determine turntable coordinate system considering its non-orthogonality

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