Showing 1-25 of 5,776 resultsfor "Index Terms":Visual Perspective
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Visual search in dynamic 3D visualisations of unstructured picture collections
Interacting with Computers
Cited by: Papers (5)
We present two empirical studies of visual search in dynamic 3D visualisations of large, randomly ordered, photo collections. The aim is to assess the possible effects of geometrical distortions on visual search effectiveness, efficiency and comfort, by comparing the influence of two perspective representations of photo collections on participants’ performance results and subjective judgments. Thu...Show More
Fovography: A naturalistic imaging media
2017 International Conference on 3D Immersion (IC3D)
Year: 2017 | Conference Paper |
Cited by: Papers (1)
This paper broadly describes a novel approach to representing the three-dimensional world in a two-dimensional image. Rather than just relying on the physical behavior of light rays projected onto a surface, as is the case with most current imaging technologies, we are attempting to create a new imaging technology that emulates the subjective appearance of the world as perceived via the human visu...Show More
Image Based Visual Servoing Model Predictive Control of Manipulator
Renqiang Li;Xiaojuan Wang;Wenxiao Wang;Haosheng Jiang;Ding Liu;Xubin Ping
2023 35th Chinese Control and Decision Conference (CCDC)
Year: 2023 | Conference Paper |
Cited by: Papers (2)
Visual servoing as an important implementation of machine intelligence has been widely studied. While in the visual servoing control task of multi-joint manipulator, the task often fails due to the occurrence of camera retreat phenomenon. The present paper considers the combinations of the image based visual servoing and model predictive control (MPC) scheme to control manipulator. The visual serv...Show More
Application Research in Computer Design System Based on 3D High-Definition Image Visual Communication
2022 IEEE 4th International Conference on Civil Aviation Safety and Information Technology (ICCASIT)
Year: 2022 | Conference Paper |
Aiming at the problems of blurred contours and incomplete overall distribution shape after 3D high-definition image registration, this paper proposes a multi-dimensional visual communication down-projection transformation image registration simulation. Matching points require the image to satisfy peripolar geometric constraints after correction. On the basis of the above, this paper uses 3D printi...Show More
Application Research in Computer Design System Based on 3D High-Definition Image Visual Communication
2022 IEEE Conference on Telecommunications, Optics and Computer Science (TOCS)
Year: 2022 | Conference Paper |
Aiming at the problems of blurred contours and incomplete overall distribution shape after 3D high-definition image registration, this paper proposes a multi-dimensional visual communication down-projection transformation image registration simulation. Matching points require the image to satisfy peripolar geometric constraints after correction. On the basis of the above, this paper uses 3D printi...Show More
A pose-free 2D-3D hybrid approach for visual servoing control systems
2024 28th International Conference on System Theory, Control and Computing (ICSTCC)
Year: 2024 | Conference Paper |
This work is set to design pose-free visual feedback control laws. Our contribution is linked to improving 3D pose-free visual servoing strategy using 2D predictions of visual features’ trajectories. Given a set rigid body characterized by a set of 3D point features, our proposed visual servoing strategy enhanced with predictive elements is based on computing the following sample time positions of...Show More
Object detection and recognition in a multiresolution representation
[Proceedings] 1991 IEEE International Joint Conference on Neural Networks
Year: 1991 | Conference Paper |
The authors discuss the detection and recognition of visual objects. They deal with recognizing objects in natural scenes. Two assumptions are vital in the whole process: that the object representation is equivalent to some 2D function, and that the stability and sensitivity of the representation are preserved and are of equal importance. A truncated multiresolution pyramid neural net is used.<>Show More
Perceiving spatial relationships in computer-generated images
The sources of visual information that must be present to correctly interpret spatial relations in images, the relative importance of different visual information sources with regard to metric judgments of spatial relations in images, and the ways that the task in which the images are used affect the visual information's usefulness are discussed. Cue theory, which states that the visual system com...Show More
Using spherical moments for visual servoing from a special target with unique projection center cameras
2008 10th International Conference on Control, Automation, Robotics and Vision
Year: 2008 | Conference Paper |
This paper focuses on visual servoing from a special target using a vision sensor with an unique projection center. The target is a sphere marked with two points on its surface. Using a spherical projection model, a new minimal set of six features is proposed for this target. Spherical moments are exploited to compute the new set on the image of the sensor. Using the new set, a classical control m...Show More
Enabling Activity Based Intelligence with Visual Analytics
2023 International Conference on Military Communications and Information Systems (ICMCIS)
Year: 2023 | Conference Paper |
ThornViz is a visual analytics tool presenting data along multiple perspectives for discovering the unexpected and performing Activity Based Intelligence (ABI) analysis. It leverages a flexible data model along with a graph database to support ABI principles through interactive visual exploration of intelligence data including dynamic filtering and social network analysis techniques. ThornViz was ...Show More
Detecting 3-D Mirror Symmetry in a 2-D Camera Image for 3-D Shape Recovery
Proceedings of the IEEE
Cited by: Papers (16)
In this paper, we take up the long-standing problem of how to recover 3-D shapes represented by a 2-D image, such as the image on the retina of the eye, or in a video camera. Our approach is biologically grounded in a theory of how the human visual system solves this problem, focusing on shapes that are mirror symmetrical in 3-D. A 3-D mirror-symmetrical shape can be recovered from a single 2-D or...Show More
Image-based adaptive neural control of underactuated aerial mobile robot without direct position measurement
2015 34th Chinese Control Conference (CCC)
Year: 2015 | Conference Paper |
This paper proposes a new image-based adaptive neural controller for the position tracking control of the underactuated aerial mobile robots without the realtime position measurement. To realize this point, a relationship between the position tracking error and the image projection error is first established. One challenging difficulty in stabilization is the fact that the dynamics of the aerial r...Show More
Human integration of motion and texture information in visual slant estimation
Albena Tchamova;Jean Dezert;Nadejda Bocheva;Pavlina Konstantinova
2012 6th IEEE International Conference Intelligent Systems
Year: 2012 | Conference Paper |
The present research is aimed to: (i) characterize the ability of human visual system to define the objects' slant on the base of combination of visual stimulus characteristics, that in general are uncertain and even conflicting. (ii) evaluate the influence of human age on visual cues assessment and processing; (iii) estimate the process of human visual cue integration based on the well known Norm...Show More
Study on guide hole detection method for precise assembly based on binocular stereo vision
CSAA/IET International Conference on Aircraft Utility Systems (AUS 2018)
Year: 2018 | Conference Paper |
The guide holes are widely used in aircraft components machining and assembly but it is difficult to perform the visual inspection methods because of their various structural forms and inconsistent positions. To solve this problem, the paper proposes a guide holes detection method for plane parts based on binocular vision. Firstly, Harris angular points detection is used to identify the feature po...Show More
Visual control for manipulator with dead-zone nonlinearity constraint
The 27th Chinese Control and Decision Conference (2015 CCDC)
Year: 2015 | Conference Paper |
Cited by: Papers (4)
This paper presents a new and novel controller based on uncalibrated image-based visual servoing(IBVS) manipulator system with actuator fuzzy dead-zone constrain. Compared with the existing dead-zone model, the slope of dead-zone is a fuzzy value in this paper. To eliminate the harmful effect caused by fuzzy dead-zone constrain, the fuzzy adaptive controller is constructed by defuzzifying the fuzz...Show More
The Design of City Brand Visual Image Recognition System
2021 IEEE Asia-Pacific Conference on Image Processing, Electronics and Computers (IPEC)
Year: 2021 | Conference Paper |
Thanks to the city brand strategy, more and more countries and cities carry out self marketing. In this regard, branding urban space is a key subdivision to achieve a place's publicity. Therefore, from the perspective of urban design, this paper discusses the factors and indicators affecting the branding of urban conventional space. From the perspective of city brand, through the research of relev...Show More
Neurobiological and neurocognitive models of vision for touch input on mobile devices
2017 E-Health and Bioengineering Conference (EHB)
Year: 2017 | Conference Paper |
Cited by: Papers (4)
Touch input requires precise eye-hand coordination skills to be effective and efficient. In this work, we address touch input from the new perspective of understanding human vision and eye-hand coordination mechanisms in the fields of neurobiology and psychology, and we highlight implications of neurobiological and neurocognitive approaches of human vision for touch target acquisition on mobile de...Show More
Research on 3D Visual Space Distortion in a Rotational-Stereo Micro Measurement System
2007 IEEE International Conference on Automation and Logistics
Year: 2007 | Conference Paper |
Measuring 3D shape of the silicon-mold of microfluidic chips is very inconvenient because its height is only about 80 mum. There are a few of researches focus on the 3D optical micro-visual-measuring systems at present. A novel rotational-stereo-based micro measurement system (RSMMS) is developed for 3D measurement of silicon-mold used for reproduction of polymer microfluidic chips. Related measur...Show More
This paper considers the fusion of hysteresis constraint with the image-based visual servoing(IBVS) manipulator system. Compared with the conventional IBVS system, we fully consider the unknown hysteresis nonlinearity which widely exists in the real mechanical systems. To eliminate the effect arisen by the actuator hysteresis constraint, we propose a novel adaptive algorithm to estimate the unknow...Show More
Adaptive visual servoing using angle and distance
2008 7th World Congress on Intelligent Control and Automation
Year: 2008 | Conference Paper |
This paper presents a novel adaptive controller for image-based visual servoing of robots with an eye-in-hand camera using angle and distance features. The key idea lies in the development of the depth-independent interaction matrix and the proposal of an adaptive algorithm for estimating the unknown geometric parameters of the features in the 3-D space. The Lyapunov theory is used to prove the as...Show More
State-of-the-Art in Visual Attention Modeling
Modeling visual attention-particularly stimulus-driven, saliency-based attention-has been a very active research area over the past 25 years. Many different models of attention are now available which, aside from lending theoretical contributions to other fields, have demonstrated successful applications in computer vision, mobile robotics, and cognitive systems. Here we review, from a computation...Show More
Enhancement of SVG display for embedded applications
2009 IEEE 9th Malaysia International Conference on Communications (MICC)
Year: 2009 | Conference Paper |
Cited by: Papers (1)
This paper first presents how the 2-Dimension (2-D) Scalable Vector Graphics (SVG) based display format can be enhanced to display 2-D scene in 3-Dimension (3-D) perspective view while utilizing the standard 2-D SVG graphics library. This is then further extended to include 3-D objects that, when added on top of the 2-D scene, enable a full 3-D projection of the scene. The 3-D objects are encoded ...Show More
Fitting 3D Models on Central Catadioptric Images
Proceedings 2007 IEEE International Conference on Robotics and Automation
Year: 2007 | Conference Paper |
Cited by: Papers (8)
Increasing the field of view of camera is an important issue practical in robot vision. One solution is to consider catadioptric camera that allows a 360° field of view. In this paper we propose a 3D model tracking algorithm that allows a fast and reliable tracking of 3D objects within central catadioptric images. The proposed approach relies on the virtual visual servoing approach. All the modeli...Show More
Visual Guidance for a Mobile Robot with a Camera
TENCON 2006 - 2006 IEEE Region 10 Conference
Year: 2006 | Conference Paper |
We consider a problem about navigation of a mobile robot with a camera in indoor environment. A new visual control method using a vanishing point of parallel lines at both sides of the corridor is introduced, and we call this the vanishing point visual control method. This method gives a lot of useful information on the design. Therefore we can't need a priori information except both widths of the...Show More
A perspective view on visual information retrieval systems
Proceedings. IEEE Workshop on Content-Based Access of Image and Video Libraries (Cat. No.98EX173)
Year: 1998 | Conference Paper |
Visual information retrieval is a new subject of research in information technology. Its purpose is to retrieve, from a database, images or image sequences that are relevant to a query. It is an extension of traditional information retrieval so to include visual media. Interactivity with visual content is essential to visual information retrieval. Visual elements such as color, texture and object ...Show More
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