scholarly journals View-Dependent Rendering to Enhance Natural Perception for Augmented Reality Workstations

2012 ◽  
Author(s):  
Rafael Radkowski ◽  
James Oliver
Keyword(s):  
Image Processing ◽  
Visual Perception ◽  
Augmented Reality ◽  
Real Time ◽  
Point Of View ◽  
Novel Method

This paper presents a novel method for view-dependent rendering for monitor-based Augmented Reality (AR) applications that enhances natural visual perception. A typical monitor-based AR workstation incorporates a large monitor that acts as a window to the physical workspace in front of it. Although these workstations are often used in industrial AR applications, they unfortunately do not provide natural visual perception. This research focuses on the development of AR system and a novel method for real-time rendering of the augmented scene that incorporates the user’s point of view. Thus, the user gets the impression of natural visual perception while moving in front of the monitor. This paper introduces the hardware setup, geometric registration to determine the correct view, and image processing. A sequence of images is presented that demonstrates the advantages of this method.

Visual perception of surface properties through manipulation

2021 ◽  
Vol 2021 (29) ◽  
pp. 66-70
Author(s):  
James A. Ferwerda ◽  
Snehal A. Padhye
Keyword(s):  
Visual Perception ◽  
Real Time ◽  
Surface Properties ◽  
Perceptual System ◽  
Display System ◽  
Apple Ipad ◽  
Purposeful Behavior ◽  
Novel Method ◽  
Display Systems

Vision is a component of a perceptual system whose function is to support purposeful behavior. In this project we studied the perceptual system that supports the visual perception of surface properties through manipulation. Observers were tasked with finding dents in simulated flat glossy surfaces. The surfaces were presented on a tangible display system implemented on an Apple iPad, that rendered the surfaces in real time and allowed observers to directly interact with them by tilting and rotating the device. On each trial we recorded the angular deviations indicated by the device's accelerometer and the images seen by the observer. The data reveal purposeful patterns of manipulation that serve the task by producing images that highlight the dent features. These investigations suggest the presence of an active visuo-motor perceptual system involved in the perception of surface properties, and provide a novel method for its study using tangible display systems

The Parallel Design and Implementation of the PCNN Algorithm Based on the Visual Perception Information

2013 ◽  
Vol 291-294 ◽  
pp. 2936-2940 ◽  
Author(s):  
Yan Ming Zhao ◽  
Yong Wang
Keyword(s):  
Image Processing ◽  
Computational Complexity ◽  
Visual Perception ◽  
Parallel Algorithm ◽  
Real Time ◽  
Parallel Design ◽  
Design And Implementation ◽  
Real Time Image ◽  
Time Image ◽  
High Computational Complexity

The PCNN algorithm based on the visual perception of information can better analyze and understand the natural essence of image. But the multi-parameter settings and high computational complexity restrict the application of the algorithm in the industrial real-time image processing. Based on this, The parallel design and implementation of the PCNN algorithm based on the visual perception information is proposed. The PCNN algorithm is improved by the visual perception method, through analyzing parallelization of the feasibility of the algorithm, the parallel algorithm running at the cluster and experimental environment are developed. The performance of the parallel algorithm is verified by industrial image on the cluster, the experimental results show that the parallelized the PCNN algorithm has a better scalability and speedup.

scholarly journals Real-time Projection Method for Augmented Reality Assisted Assembly

2018 ◽  
Vol 175 ◽  
pp. 02026
Author(s):  
Guo Hong-jie ◽  
Du Fu-zhou
Keyword(s):  
Augmented Reality ◽  
Coordinate System ◽  
Real Time ◽  
Visualization System ◽  
World Coordinate System ◽  
Cable Laying ◽  
Augmented Reality Technology ◽  
Novel Method ◽  
Assembly Guidance ◽  
Time Projection

Recently, the augmented reality technology has become a useful tool for assembly guidance. The projectors have been always used as virtual image output devices. In most situations, real-time and dynamic images projection is essential due to that the components to be assembled are randomly placed and movable. However, the cameras and the projectors are placed in different relative positions, making it difficult to project real time images when we are using augmented reality for assembly. A novel method based on the system of binocular cameras and projector was proposed here to overcome the limitation. We established a method to get the relations of coordinate transform among camera coordinate system, projector coordinate system and world coordinate system based on real-time internal parameter matrix of the projector that we derived. Obtaining the pose information of the cameras without any designed markers in real world was also realized, which is the key technology for the camera-projector assembly visualization system. An assembly experiment of cable laying was conducted and the results showed that using the proposed method the real-time projection for augmented reality assisted assembly was realized.

scholarly journals Block–wise authentication method for digital images

2012 ◽  
Vol 63 (5) ◽  
pp. 289-295 ◽  
Author(s):  
Tomaž Nahtigal ◽  
Andrej Žemva
Keyword(s):  
Image Processing ◽  
Real Time ◽  
Digital Images ◽  
Authentication Scheme ◽  
Great Flexibility ◽  
Jpeg Images ◽  
Real Time Image Processing ◽  
Real Time Image ◽  
Novel Method ◽  
Time Image

The ability to modify digital images can cause a serious problem in some applications. In this paper we propose a novel method derived from Wong’s authentication scheme that is capable of authenticating JPEG images as well as uncompressed images, but is not a watermarking method. The method offers great flexibility in terms of the size of the authenticator and the time needed to generate the authenticator, thus making it suitable for real-time image processing. We demonstrate this by implementing it in a programmable FPGA circuit.

Modern Technology for Image processing and Computer vision -A Review

2018 ◽  
Vol 1 (2) ◽  
pp. 17-23
Author(s):  
Takialddin Al Smadi
Keyword(s):  
Image Processing ◽  
Computer Vision ◽  
Augmented Reality ◽  
Video Compression ◽  
Video Processing ◽  
Vision System ◽  
Citrus Fruit ◽  
Modern Technology ◽  
Image And Video Processing ◽  
Depth Video

This survey outlines the use of computer vision in Image and video processing in multidisciplinary applications; either in academia or industry, which are active in this field.The scope of this paper covers the theoretical and practical aspects in image and video processing in addition of computer vision, from essential research to evolution of application.In this paper a various subjects of image processing and computer vision will be demonstrated ,these subjects are spanned from the evolution of mobile augmented reality (MAR) applications, to augmented reality under 3D modeling and real time depth imaging, video processing algorithms will be discussed to get higher depth video compression, beside that in the field of mobile platform an automatic computer vision system for citrus fruit has been implemented ,where the Bayesian classification with Boundary Growing to detect the text in the video scene. Also the paper illustrates the usability of the handed interactive method to the portable projector based on augmented reality.   © 2018 JASET, International Scholars and Researchers Association

Pengembangan Media Pembelajaran Mengenal Organ Pencernaan Manusia Menggunakan Teknologi Augmented Reality

2015 ◽  
Vol 6 (2) ◽  
Author(s):  
Rujianto Eko Saputro ◽  
Dhanar Intan Surya Saputra
Keyword(s):  
Augmented Reality ◽  
Real Time

Media pembelajaran ternyata selalu mengikuti perkembangan teknologi yangada, mulai dari teknologi cetak, audio visual, komputer sampai teknologi gabunganantara teknologi cetak dengan komputer. Saat ini media pembelajaran hasil gabunganteknologi cetak dan komputer dapat diwujudkan dengan media teknologi AugmentedReality (AR). Augmented Reality (AR) adalah teknologi yang digunakan untukmerealisasikan dunia virtual ke dalam dunia nyata secara real-time. Organ pencernaanmanusia terdiri atas Mulut, Kerongkongan atau esofagus, Lambung, Usus halus, danUsus besar. Media pembelajaran mengenal organ pencernaan manusia pada saat inisangat monoton, yaitu melalui gambar, buku atau bahkan alat proyeksi lainnya.Menggunakan Augmented Reality yang mampu merealisasikan dunia virtual ke dunianyata, dapat mengubah objek-objek tersebut menjadi objek 3D, sehingga metodepembelajaran tidaklah monoton dan anak-anak jadi terpacu untuk mengetahuinya lebihlanjut, seperti mengetahui nama organ dan keterangan dari masing-masing organtersebut.

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