Effect of Luminance and Contrast Variation on Stereoacuity Measurements Using Smartphone Technology

Owing to the limitations of printed stereoacuity tests, the effects of luminance and contrast on stereopsis have not yet been sufficiently investigated, despite its important implications in designing stereoacuity measuring instruments, particularly for electronic devices. A stereopsis measurement system was established using two 4 K smartphones and a phoropter to evaluate the effects of luminance and contrast variations on the stereoacuity test. Seventeen young subjects with normal visual acuity and stereopsis were recruited. Two types of test symbols, contour-based and random-dot-based, were used in the experiment. Four series tests were established with different maximum brightness values, including 240 lux, 120 lux, 60 lux, and 30 lux. Each series test contained 19 pages with different contrasts between 95% and 5% and was calculated using the Michelson contrast formula. No significant difference was found for both contour-based and random-dot-based stereograms in any of the contrast groups with different maximum brightness. Similarly, no significant difference was found between contour-based and random-dot-based patterns under different contrasts of above 35%. As the contrast decreased below 30%, the stereopsis was significantly better in the contour-based pattern than in the random-dot-based pattern for some degrees of contrast. The luminance and contrast of the digital display are not critical factors for stereoacuity under normal circumstances. This implies that a standard monitor with a certain 3D technology can be used to measure the stereoacuity threshold without calibrating the luminance and contrast.

Design and Simulation of Voltage Measurement System Based on ADC0809

The display of ordinary voltmeter is not clear enough, the measurement range is narrow and the anti-interference ability is weak. This paper studies the design and Simulation of voltage measurement system based on ADC0809. Combined with the actual production situation, using the function that ADC0809 has 8 analog inputs and can convert the analog input into digital display, this paper designs the circuit with single chip microcomputer chip AT89S51. Combined with the working principle of a / D converter and DC digital voltmeter composed of them, the voltage measurement of 0-10V is realized in this paper. The experimental results show that the measurement system has the advantages of accurate reading, wide measurement range and micro power consumption.

‘More True and Better’

Chapter 9 moves from the physical dismemberment of manuscripts to the imagistic fragmentation of the digital display of books folio by folio. The chapter calls for a more coherent effort to provide interpretative frameworks and explanatory material for the tens of thousands of manuscripts now digitized in online repositories, or statically displayed in cases. Noting how much reparative work can be completed through the digital realm, this investigation also shows how easy it is to dupe the onlooker through the splicing of images that are not contiguous, or the presentation of over-specialized information. While fully cognizant of the potential of the digital aspect, this chapter offers an urgent call for responsible and thoughtful frameworks of interpretation that emphasize the materiality of the manuscripts, and provide some elements of training to enhance the legibility of the images.

Digital Imaging Technology

In this chapter, I examine one sense in which digital images are digital; namely, in virtue of being made and presented with digital technology. I begin by outlining some general theoretical commitments regarding the nature and conditions of appreciation. Broadly speaking, the appreciation of art is to be understood in terms of the differential exercise of cognitive skills. Such skills can be exercised when an appreciator takes into account the distinctively digital technology involved in both the production and the screening of digital images. I give some important background on the functioning of computers and digital display tools. This background helps us understand the debate surrounding potential aesthetic losses and gains when working creatively with digital, as opposed to analog, tools.

Intangible Cultural Heritage High-Definition Digital Mobile Display Technology Based on VR Virtual Visualization

With the continuous improvement of the public’s pursuit of information contact experience, in the era of the development of VR technology, digital mobile display technology has gradually changed the traditional display habits with its unique charm and strong competitive advantage. This article aims to improve the value of art research, meet the needs of the information age, and spread the spirit of intangible cultural heritage by improving the virtual visualization of intangible cultural heritage digital display technology. This article takes Dai ceramics intangible cultural heritage as an example to discuss the modern display technology of the ceramics, using virtual reality technology to enhance the sense of reality and interaction during the exhibition. This article uses visualization technology to digitally and artistically process Dai ceramics to achieve artistic effects while ensuring the authenticity of the ceramics, giving people a different visual experience. The article compares the application of several modern technologies in digital mobile display. Among them, the virtual reality technology has a good application in the system frame structure of the display, which exceeds 25%. In the future, virtual visualization technology will be further popularized and promoted, giving intangible cultural heritage high-definition digital display more opportunities and development space.

A Review Paper on Automatic Coin Sorter for Temples using IOT

At non-secular places like temples, gurdwaras, and lots of others, devotees gift cash within the donation box. It's a giant deal to sight the truth of the given cash. Similarly, cash numeration has been a giant task because it is allotted manually. Mistakes on numeration happen most of the time because of several reasons like eyes temporary state, losing focus, etc. typically fiddle of cash happens at the time of numeration money. To prevail over these issues Automatic Coin Sorter for Temples using IOT is meant. During this system, the truth of the coin is detected employing a dimension standardization method. Then the coins when some delay area unit sorted and area unit inserted into the various assigned box with the assistance of the motor. All the data regarding the coin is distributed to the Associate in Nursing digital display wherever the worth, reality, and count of the coin area unit are displayed. The overall count of the noon and full-day is distributed to the various head person through the applying. The advantage of this review paper for the reader is to achieve information about numerous technologies used for creating this method.