Interactive view synthesis from integral photography using estimated depth information

Author(s):  
Satoshi Mitsuda ◽  
Tomoyuki Yamamoto ◽  
Keita Takahashi ◽  
Takeshi Naemura ◽  
Hiroshi Harashima
2006 ◽  
Vol 21 (9) ◽  
pp. 709-723 ◽  
Author(s):  
Indra Geys ◽  
Luc Van Gool

2013 ◽  
Vol 284-287 ◽  
pp. 3230-3234
Author(s):  
Thomas Schumann ◽  
Herbert Krauß ◽  
Yeong Kang Lai ◽  
Yu Fan Lai

With advances in technology, 3D video technology becomes possible and attractive. However, there are still many pre-recorded 2D videos/images which need to get transferred to 3D. Hence this paper presents a high quality view synthesis algorithm and architecture for 2D-to-3D video conversion. During the process of view synthesis, the monocular depth information together with the intermediate view is synthesized to the left-eye and right-eye view. The proposed view synthesis algorithm consists of two parts: 3D image warping and inpainting (hole filling). 3D image warping transforms a 2D camera image plane to a 3D coordinate plane. However the integer grid points of the reference are warped to irregularly spaced points in the virtual view, resulting in occlusion problems. Thus inpainting is needed to fix the virtual images. The proposed algorithm shows an improved PSNR gain of 0.2~1.5dB. We adopt hardware/software co-design to accomplish the proposed view synthesis algorithm. For this we implemented the image inpainting on a FPGA device and the remaining algorithm in software.


2006 ◽  
Vol 12 (4) ◽  
pp. 593-615 ◽  
Author(s):  
Gustavo Olague ◽  
Francisco Fernández ◽  
Cynthia B. Pérez ◽  
Evelyne Lutton

We present a new bio-inspired approach applied to a problem of stereo image matching. This approach is based on an artificial epidemic process, which we call the infection algorithm. The problem at hand is a basic one in computer vision for 3D scene reconstruction. It has many complex aspects and is known as an extremely difficult one. The aim is to match the contents of two images in order to obtain 3D information that allows the generation of simulated projections from a viewpoint that is different from the ones of the initial photographs. This process is known as view synthesis. The algorithm we propose exploits the image contents in order to produce only the necessary 3D depth information, while saving computational time. It is based on a set of distributed rules, which propagate like an artificial epidemic over the images. Experiments on a pair of real images are presented, and realistic reprojected images have been generated.


2020 ◽  
Vol 3 (3) ◽  
pp. 122
Author(s):  
Andi Silvan

AbstractThis study takes the topic of predicting corporate bankruptcies. This research dqlam use traditional methods Altman Z-Score and Zmijewski. The purpose of this study was to obtain in-depth information about predicting bankruptcy of companies that are not necessarily directly to bankruptcy, but there is financial distress.Based on the results of research conducted on the four (4) non industrial manufacturing company listed on the Indonesia Stock Exchange (BEI). Obtaining the value z-score represents the average company are in good condition, which means no financial distress. Acquisition value of x-score has a value of less than 0 (zero) which means that the company is in good condition and is predicted not experiencing financial difficulties. This study led to the conclusion that the Altman Z-Score and Zmijewski method can be used to predict corporate bankruptcy. Keywords: Financial Ratios, Bankruptcy, Company.


1997 ◽  
Vol 14 (3) ◽  
pp. 17-37
Author(s):  
Mohammad Hashim Kamali

This essay is presented in two sections. Section one is devoted to amarket analysis of options, and section two to a Shari'ah perspective onoptions trading. There is no real shortage of information in the operationalprocedures of options and the various ways in which options areutilized as trading vehicles and hedging and risk-reduction devices. Onthe other hand, there is a shortage of in-depth information analyzingoptions trading from the perspective of the Shari'ah. The second part ofthis essay is tentative, in part because certain aspects of the issue needfurther development and research. The literature on the subject is in itsearly stages and has not reached a stage where consensus on issues canbe identified. This is borne out perhaps by the divided opinion that wehave at present over the basic question of the validity or nonvalidity ofoptions from an Islamic legal perspective. I shall review these twoopposing currents of opinion in due course. Suffice it here to note thatthis presentation does not seek to advocate the validity of those varietiesof options which either directly or indirectly proceed on the charging offixed interest to accounts. This may be said to be one of the distinctivefeatures of the Shari'ah perspective on options-just as it is of all varietiesof commercial transactions in Islamic law.My review of the mechanics of options trading in the first section ofthis essay broadly indicates that options trading does not proceed oncharging of fixed interest, nor does it involve unwarranted risk takingand uncertainty (gharur). Options trading has a logic of its own, whichis dominated by the idea of risk reduction and hedging against excessivelylarge positions in its underlying assets. From the perspective ofIslamic law this aspect of options is attractive and hence, from this perspectiveI make the case for the legality of options. I may also add herein passing that options trading cannot be equated with gambling or overindulgencein financial speculation. as it is basically designed to ...


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