Reference Functions for Synthesis and Analysis of Multiview and Integral Images

Saveljev, Vladimir; Kim, Sung Kyu

doi:10.3807/josk.2013.17.2.148

Cited by 8 publications

(11 citation statements)

References 21 publications

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“…The visual 3D images were confirmed, and the patterns were further developed as the reference functions [9]. The synthesis based on patterns is applicable for the real-time autostereoscopic three-dimensional displays.…”

mentioning

confidence: 92%

“…The reference functions define the wavelets as mentioned above. According to [9], the 1D functions can be written as…”

mentioning

confidence: 99%

“…3. Note that for sake of convenience, the numeration of the depth planes is altered as compared to [9]. Namely, in the current paper, the index of the function is equal to the index of the reference function minus one.…”

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confidence: 99%

“…4. To analyze the multiview image and recognize the location of voxels in space using the functions (2), (3), we applied the convolution technique [9]. A location is considered as recognized, when the convolution at this point is higher than a predefined threshold.…”

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confidence: 99%

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Analysis of autostereoscopic three-dimensional images using multiview wavelets

Saveljev

Palchikova

2016

Appl. Opt.

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Recently, the reference functions for the synthesis and analysis of the autostereoscopic multiview and integral images in three-dimensional displays we introduced. In the current paper, we propose the wavelets to analyze such images. The wavelets are built on the reference functions as on the scaling functions of the wavelet analysis. The continuous wavelet transform was successfully applied to the testing wireframe binary objects. The restored locations correspond to the structure of the testing wireframe binary objects. © 2015 Optical Society of America The synthesis and analysis of images are two main concepts of the image processing. The real-time processing of the multiview images is probably most important problem of three-dimensional (3D) imaging and image processing in autostereoscopic multiview and integral displays [1], [2].The processing can be based on a set of functions. Such functions may be helpful for the real-time image synthesis and analysis. For instance, the computer-generated holograms can be synthesized from the hologram patterns [3], [4].The extraction of depth is one of particular problems of the analysis of multiview and integral images [5]. The depth can be extracted using various methods including the computational integral imaging reconstruction [6], [7].The autostereoscopic multiview images can be also synthesized from the voxel patterns [8]. The visual 3D images were confirmed, and the patterns were further developed as the reference functions [9]. The synthesis based on patterns is applicable for the real-time autostereoscopic three-dimensional displays.Using the mentioned reference functions, the structure of multiview images can be analyzed, and locations of voxels can be extracted. Basing on that, it is possible to build a depth map, which can be effectively used in the further processing of 3D multiview images, e.g., in 3D broadcasting.The above functions were applied for depth extraction under various conditions including noised and grayscale images and showed a good validity [10], [11]. However, the functions [9] are not orthogonal, they do not comprise a basis.A promising technique of the real-time processing is the wavelet analysis. Generally, the wavelets can be built by various methods. One of them is to start from the scaling functions [12]. The scaling functions should satisfy certain conditions, i.e., the two-scale relation, stability (Rietz function), and the partition of the unity. Then, a wavelet can be built as a linear combination of scaling functions [13] where ψ is a wavelet, φ is a scaling function, and β is a coefficient.A known scaling function which satisfies all necessary conditions is the Haar function [14]. The functions [9] are based on rectangular unit pulse which actually is the shifted Haar function.The Haar function itself defines a family of wavelets [15]. Similarly, the multiview reference functions can define wavelets. The preliminary considerations were presented at the conferences [16] and more. In the current paper, we develop such wavelets and...

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confidence: 92%

“…The reference functions define the wavelets as mentioned above. According to [9], the 1D functions can be written as…”

mentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Analysis of autostereoscopic three-dimensional images using multiview wavelets

Saveljev

Palchikova

2016

Appl. Opt.

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“…Since the successful development of a stereoscopic three-dimensional (3D) display, studies on autostereoscopic 3D displays and holography have been actively conducted [1][2][3]. The ultimate objective of such a 3D display is to provide viewers with a tangible 3D display.…”

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confidence: 99%

A Tangible Floating Display System for Interaction

Kim¹,

Kang²,

Ahn³

et al. 2014

Journal of the Optical Society of Korea

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A tangible floating display that can provide different perspective views without special glasses being introduced. The proposed system can display perspective floating images in the space in front of the system with the help of concave mirrors. In order to avoid wearing special equipment to interact and deliver the sense of touch, the proposed system adopted an ultrasound focusing technology. For providing an immersive experience to the viewers, the proposed system consists of a tangible floating display system and a multiple-view imaging system for generating three lenticular displays in front of the users.

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