Evaluation of stereo imaging capabilities and parameters when using personal computers: Defining a low-cost high-quality system

Author(s):  
John M. Mackenzie

Over the past several years the capabilities of personal computers have advanced at a staggering rate. At the same time, the cost of the hardware has dropped to such a degree that one wonders whether such inexpensive hardware can perform adequately.The purpose of this discussion is to look at the minimum hardware necessary to do quality stereo imaging on CRT display devices and to discuss several important evaluation criteria in producing these stereo images.The most important criteria for producing high quality stereo pairs lies in the quality of the digitization of the image. Most TV rate imaging systems even after multiple frames are averaged are quite distorted and lack sufficient image detail. Slow scan imaging systems such as the one developed in this laboratory which use a gated integrator and can digitize at over one thousand pixels square with 256 gray levels produce images which are extremely close to photographic quality.

2014 ◽  
Vol 602-605 ◽  
pp. 485-488
Author(s):  
Zhi Xiang Liu ◽  
Jian Guo Yao ◽  
Song Zhan Fan ◽  
Jian Xiu Su

According to the shortcomings of the traditional free abrasive chemical mechanical polishing (CMP), in recent years, the fixed abrasive chemical mechanical polishing (FA-CMP) technology is proposed. It is a new planarization technology developed on the basis of the traditional CMP. Pad is an important and dispensable part in FA-CMP. The cost and quality of FA-CMP pad are determined by the preparation technology. In order to study the FA-CMP pad of the low cost and high quality, in this paper, by reading a lot of literature, 5 kinds of preparation technology of FA-CMP pad are analyzed. Study results will provide some reference for further designing and manufacturing the FA-CMP pad.


Author(s):  
W. Ostrowski ◽  
K. Hanus

One of the popular uses of UAVs in photogrammetry is providing an archaeological documentation. A wide offer of low-cost (consumer) grade UAVs, as well as the popularity of user-friendly photogrammetric software allowing obtaining satisfying results, contribute to facilitating the process of preparing documentation for small archaeological sites. However, using solutions of this kind is much more problematic for larger areas. The limited possibilities of autonomous flight makes it significantly harder to obtain data for areas too large to be covered during a single mission. Moreover, sometimes the platforms used are not equipped with telemetry systems, which makes navigating and guaranteeing a similar quality of data during separate flights difficult. The simplest solution is using a better UAV, however the cost of devices of such type often exceeds the financial capabilities of archaeological expeditions. <br><br> The aim of this article is to present methodology allowing obtaining data for medium scale areas using only a basic UAV. The proposed methodology assumes using a simple multirotor, not equipped with any flight planning system or telemetry. Navigating of the platform is based solely on live-view images sent from the camera attached to the UAV. The presented survey was carried out using a simple GoPro camera which, from the perspective of photogrammetric use, was not the optimal configuration due to the fish eye geometry of the camera. Another limitation is the actual operational range of UAVs which in the case of cheaper systems, rarely exceeds 1 kilometre and is in fact often much smaller. Therefore the surveyed area must be divided into sub-blocks which correspond to the range of the drone. It is inconvenient since the blocks must overlap, so that they will later be merged during their processing. This increases the length of required flights as well as the computing power necessary to process a greater number of images. <br><br> These issues make prospection highly inconvenient, but not impossible. Our paper presents our experiences through two case studies: surveys conducted in Nepal under the aegis of UNESCO, and works carried out as a part of a Polish archaeological expedition in Cyprus, which both prove that the proposed methodology allows obtaining satisfying results. The article is an important voice in the ongoing debate between commercial and academic archaeologists who discuss the balance between the required standards of conducting archaeological works and economic capabilities of archaeological missions.


vinced that we should not, because I am certain that the lead chambers, considering of the huge quantity of sulfur burned inside, won’t last more than 6 years instead of 15, as formerly forecasted. If that fact is confirmed, deprecia­ tion is not important enough and the profit of the soda factory is overvalued. Though the Board of Directors at the September 4, 1834 meeting was not asked for a decision as regards the length of time allowed for depreciation, it was asked to decide whether deprecia­ tion should be taken on machinery during the first year's service. In the same report, the chief accountant maintains the fictitious nature of the depreciation taken into account: . . . let me remind you of what I told you in my preceding report: there is only one means to have an exact idea of depreciation: it consists, when a building or a piece of machinery is out of use, in appraising its value, and when it is destroyed to take into the Profit and Loss Account the remaining value, less the selling price of materials. By that means we could know exactly the depreciation life of a building or a piece of machinery . . . The method of calculating depreciation was to be completely re­ viewed in the 1870’s as discussed in a subsequent section. Transfer pricing among factories. Transfer pricing also became an issue which was considered by the Company in developing its cost accounting system. The issue arose because the soda factory sold its products to the glass factory on the one hand, and to external customers on the other hand. It first seemed correct to use the same price until this price appeared excessive due to ap­ proximate methods of valuing the quality of goods sold: If that increase in the degrees (measure of quantity for soda) is of little importance for customers delivered to in Paris, it is quite different for the Saint-Gobain’s branch which pays for more degrees than it really gets. Conse­ quently, the soda factory makes a profit to the detriment of the glass factory and increases its cost prices. To conclude, the chief accountant makes some proposals among which: 3) Wouldn't it be convenient to choose a uniform way of costing as regards the transfer transactions between our branches? We could use either the cost price or the mar­ ket price.

2014 ◽  
pp. 264-264

2018 ◽  
Vol 176 ◽  
pp. 01011
Author(s):  
YE Xin ◽  
JI Qian

The shared economy has been developing rapidly with low cost, low consumption and high environmental efficiency features under the background of internet waves. The shared economy model has emerged in housing, catering, and travel. As people look forward to high quality of life and their social interaction need, the shared kitchen platform arises at the right moment. This paper takes the shared kitchen as an example, focusing on the patients and their caregivers, the existing shared kitchens and its service platform as well as the space system design and human-computer interaction of the shared kitchen have been investigated and analysized. Taking the "high efficiency, the intelligence and the humanization" as the design principles, we are committed to exploring new directions for modular kitchen design under the background of shared economy.


2019 ◽  
Vol 9 (1) ◽  
pp. 26-33 ◽  
Author(s):  
Jolanta Harasymiuk ◽  
Elżbieta Hanna Szafranko ◽  
Jan Tyburski

AbstractA building investment, especially in nature valuable areas, is almost always inseparable with a bigger or smaller environmental interference. For a few years there are legal regulations created to protect these areas. One of them is the requirement to conduct a habitat evaluation and to prepare a habitat report if there is a indication of significant impact on the Natura 200 site. The quality of such a report is crucial for completion an investment in a chosen localisation as well as for shortening a preparation stage with respect to environmental requirements. A defective report can result in a agreement refusal of investment completion conditions of an investment by an authorised body, and can be a reason for protests of a community which is affected by the planned investment. A well-made report, on the other hand, results in a smooth acceptance of the project without the need for consultation of the investor with the proceeding body and saving the cost of correction of a defective documentation. An review of the literature done by the authors and the talks carried out with the staff making an assessment of reports of an impact on Natura 2000 sites showed the lack of common use in practise of a formalised set of criteria of evaluation of such documents. The aim of the study was to prepare a set of evaluation criteria for reports on environmental impact on Natura 2000 sites. The set was tested on already made reports and it showed their basic omissions and disparities. The set prepared can be used by an investor in the course of making a report. It can be also a useful tool for a verifying clerk while evaluating a report for its completeness and adequacy. On the basis of the prepared set of evaluation criteria, a procedure was proposed allowing an impartial verification of reports. As a result of analyses made, a procedure was worked out which is presented in the diagram concluding this paper.


2015 ◽  
Vol 220-221 ◽  
pp. 396-400
Author(s):  
Lauryna Šiaudinytė ◽  
Deividas Sabaitis ◽  
Domantas Bručas ◽  
Gintaras Dmitrijev

Production of high precision circular scales is a complicated process requiring expensive equipment and complex processes to achieve. Precision angle measurement equipment tends to be very expensive and therefore not accessible to all in need. Simplification of production of such devices can lead to reducing costs of angle measurement systems ensuring easier accessibility. A new method of producing precision circular scales using low cost mass production can reduce the costs of these devices drastically. Therefore, utilising a common CD technology as the basis for such scales is analysed. This paper deals with the analysis of the newest laser cutting method for plastic circular scales. Preliminary results of manufacturing such scales are presented in the paper as well as measurements of the grating of the scale were performed. The quality of different scales manufactured using different laser types is analysed in the study. The cost – effective alternative of manufacturing circular scales is discussed in the paper.


2014 ◽  
Vol 13 (2) ◽  
pp. 275-284 ◽  
Author(s):  
Jen-Der Lue

In the context of the discussion about the governance capacity of small states in the world market raised by Katzenstein, the case of East Asian newly industrialised countries is an interesting one. This article takes the development of social policy in Taiwan as a case study through which to explore the role of social policy in the process of rapid industrialisation in small states. It is argued that in the initial phase of industrialisation the productive component of social policy was highlighted by the developmental state to serve the goal of economic development. Social policy functioned at this stage as an effective instrument to dampen the cost of labour and thus contributed to the low-cost strategy of developmental state. Since the 1980s, however, social policy has been profoundly transformed as a consequence of economic globalisation on the one hand and domestic democratisation on the other. It is argued that social policy making since the 1990s in Taiwan has shifted in emphasis from the productive to the consumptive component. Finally, it is suggested that three factors will be decisive in determining Taiwan's social policy in the future: limited governmental revenues, fiscal strain due the public debt problem and the steering capacity of minority governments.


Lontara ◽  
2021 ◽  
Vol 2 (2) ◽  
pp. 57-68
Author(s):  
Nurbeti Salam ◽  
Bambang Ariyanto ◽  
Maharani Gayatri

Services in the field of radiology which are health support services also need to maintain and improve the quality of their services. Radiology is one of the supporting units of health services in establishing the diagnosis of a disease and also needs to maintain and improve the quality of services appropriately and safely, both for patients (users), radiographers (officers) and the community or the surrounding environment. This study aims to determine the quality of radiology services at the Center for Community Lung Health (BBKPM) Makassar. The method used is descriptive research with a quantitative approach. The population is all patients in the radiology installation of the Center for Community Lung Health (BBKPM) with a sample of 158 people. The results showed that the quality of radiology services in terms of timeliness was categorized as very high, namely 91.86%. The cost of Thorax photo examination services is relatively cheap and affordable and the service waiting time reaches a fairly high-quality value of 86.79%. The information aspect reached a high-quality value, namely 85.97%. The technical executor of the Thorax photo examination is carried out by a radiographer and the executor of the diagnostic results is a radiologist (radiology specialist) who has achieved a fairly high-quality score of 97.15%. Aspects of Human Relations have reached a fairly high-quality score of 87.00%. Environmental Aspects achieved a quality value of 97.57%. It is recommended that the Makassar BBKPM management provide a complaint box (suggestion box) in the radiology room to evaluate services.


Author(s):  
S.S GRECHIKHIN ◽  

Diagnostics in the practice of a dentist is the key to quality treatment. However, depending on the quality of services provided, the cost of diagnostic methods is set. For a dentist working in a private office, the key to successful diagnostic measures at a high quality level is a priority. However, these methods are expensive for the patient. The purpose of this study is to study the impact of financial incentives on the quality of early diagnosis in the practice of a dentist who provides quality treatment. In the study, we studied clinical cases with full and partial study in terms of diagnostic and neglect x-ray diagnosis from the doctor and from the patient due to a misunderstanding of the importance and necessity of this manipulation. In statistical data analysis, the resulting regression models use a binary variable as a dependent variable on the level of financial costs. Thus, in the course of our research, we found that the number of x-rays significantly increases when dentists receive a fee for services, rather than a salary, and when patients are exempt from paying for additional diagnostic methods. Our results show that financial incentives significantly influence additional high-quality and complete examination of patients.


space&FORM ◽  
2021 ◽  
Vol 2020 (46) ◽  
pp. 165-186
Author(s):  
Wojciech Skórzewski ◽  

Local spatial development plans, are one of the most important urban landscaping tools. Their goal is, on the one hand, to protect urban space including, inter alia, prevention of creation of illconsidered developments, that are bad to the urban landscape, the environment or the local communities. For this purpose, there is a number of restrictions introduced into local spatial development plans. On the other hand, the role of local plans is also creating the space, so they should be conducive to projects with high-quality architecture, that are often unconventional and innovative, adding new value to the architectural landscape of the city, which could be blocked by too strict regulations. The trick is to create regulations in a way that can help reconcile that two goals.


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