Yorùbá Films in Time Perspective: Past, Present, and Future

This essay (re)views the development of Yoruba films according to the Yoruba traditional worldview about time: a term used synonymously with life, season or period, for it is not linear but cyclical, just as life, it is not straight. Therefore, the present trend in the Yoruba film industry, whereby skilled film producers now have their films premiered at and release to only cinemas where they could be watched legally and piracy is prevented, is seen in this paper as a return to the origin of the development of the Yoruba films. The Yoruba films started in 1976 at the cinema (past), metamorphosed into video mode in the 1990s which is still in place (present) and gradually going back to the cinema and the stage mode (future from now), which was its origin because the Ogunde dramatic tradition: a stage medium, is agreed as Yoruba film precursor.

Short Video Strategy Analysis from the Self-Media Industry—Taking ByteDance Company as an Example

<p>In today’s smart Internet era, self-media as an emerging industry uses short video to affect people in many ways. In perspective of short video, this article takes ByteDance company as an example to analyze the status of short video mode combined with its own advantages and disadvantages, and it will further study the problems in the development of self-media. At the same time, it puts forward corresponding strategies to provide a reference for corporate strategy formulation.</p>

A Novel Device for Smartphone-Based Fundus Imaging and Documentation in Clinical Practice: Comparative Image Analysis Study

Background Smartphone-based fundus imaging allows for mobile and inexpensive fundus examination with the potential to revolutionize eye care, particularly in lower-resource settings. However, most smartphone-based fundus imaging adapters convey image quality not comparable to conventional fundus imaging. Objective The purpose of this study was to evaluate a novel smartphone-based fundus imaging device for documentation of a variety of retinal/vitreous pathologies in a patient sample with wide refraction and age ranges. Methods Participants’ eyes were dilated and imaged with the iC2 funduscope (HEINE Optotechnik) using an Apple iPhone 6 in single-image acquisition (image resolution of 2448 × 3264 pixels) or video mode (1248 × 1664 pixels) and a subgroup of participants was also examined by conventional fundus imaging (Zeiss VISUCAM 500). Smartphone-based image quality was compared to conventional fundus imaging in terms of sharpness (focus), reflex artifacts, contrast, and illumination on semiquantitative scales. Results A total of 47 eyes from 32 participants (age: mean 62.3, SD 19.8 years; range 7-93; spherical equivalent: mean –0.78, SD 3.21 D; range: –7.88 to +7.0 D) were included in the study. Mean (SD) visual acuity (logMAR) was 0.48 (0.66; range 0-2.3); 30% (14/47) of the eyes were pseudophakic. Image quality was sufficient in all eyes irrespective of refraction. Images acquired with conventional fundus imaging were sharper and had less reflex artifacts, and there was no significant difference in contrast and illumination (P<.001, P=.03, and P=.10, respectively). When comparing image quality at the posterior pole, the mid periphery, and the far periphery, glare increased as images were acquired from a more peripheral part of the retina. Reflex artifacts were more frequent in pseudophakic eyes. Image acquisition was also possible in children. Documentation of deep optic nerve cups in video mode conveyed a mock 3D impression. Conclusions Image quality of conventional fundus imaging was superior to that of smartphone-based fundus imaging, although this novel smartphone-based fundus imaging device achieved image quality high enough to document various fundus pathologies including only subtle findings. High-quality smartphone-based fundus imaging might represent a mobile alternative for fundus documentation in clinical practice.

Secured data management using face detection and Video mode

Data security is protecting digital data, from the unwanted actions of unauthorized users, like cyberattack or data breach. Data is no longer said to be secure if it falls into the hands of hackers or those that would misuse it. Data is well secured and guarded within an organization. But, when its employees sell their access specifiers to their competitors, data is no longer protected. This could be avoided by advanced technology. The Identity-based approach is an approach to regulate access to a digital product or service based on the identity of an individual. This allows organizations to grant access to a variety of digital services using the same credentials, ensuring the accurate match between what users are entitled to and what they really receive, while also permitting other access constraints like company, device, location and application type(attributes) In our application, data is uploaded by an encryption format attached with the video mode and it is downloadable by the user only through the unique face detection mode. When a user tries to download the encrypted file, a notification is sent to four admins for better privacy reasons. Only upon acceptance from four of these admins, the file could be downloaded. The admins can authenticate the user using his face captured through face detection. This could be used at any level in an organization but is much efficient when no of users trying to access a file is limited. This provides high security and rejects unauthorized users. Breach of data leads to a decline in profits and incline in losses. This could be reduced if the data security could be ensured using face detection of a person who is trying to access the data.

A Novel Device for Smartphone-Based Fundus Imaging and Documentation in Clinical Practice: Comparative Image Analysis Study (Preprint)

BACKGROUND Smartphone-based fundus imaging allows for mobile and inexpensive fundus examination with the potential to revolutionize eye care, particularly in lower-resource settings. However, most smartphone-based fundus imaging adapters convey image quality not comparable to conventional fundus imaging. OBJECTIVE The purpose of this study was to evaluate a novel smartphone-based fundus imaging device for documentation of a variety of retinal/vitreous pathologies in a patient sample with wide refraction and age ranges. METHODS Participants’ eyes were dilated and imaged with the iC2 funduscope (HEINE Optotechnik) using an Apple iPhone 6 in single-image acquisition (image resolution of 2448 × 3264 pixels) or video mode (1248 × 1664 pixels) and a subgroup of participants was also examined by conventional fundus imaging (Zeiss VISUCAM 500). Smartphone-based image quality was compared to conventional fundus imaging in terms of sharpness (focus), reflex artifacts, contrast, and illumination on semiquantitative scales. RESULTS A total of 47 eyes from 32 participants (age: mean 62.3, SD 19.8 years; range 7-93; spherical equivalent: mean –0.78, SD 3.21 D; range: –7.88 to +7.0 D) were included in the study. Mean (SD) visual acuity (logMAR) was 0.48 (0.66; range 0-2.3); 30% (14/47) of the eyes were pseudophakic. Image quality was sufficient in all eyes irrespective of refraction. Images acquired with conventional fundus imaging were sharper and had less reflex artifacts, and there was no significant difference in contrast and illumination (<i>P</i>&lt;.001, <i>P</i>=.03, and <i>P</i>=.10, respectively). When comparing image quality at the posterior pole, the mid periphery, and the far periphery, glare increased as images were acquired from a more peripheral part of the retina. Reflex artifacts were more frequent in pseudophakic eyes. Image acquisition was also possible in children. Documentation of deep optic nerve cups in video mode conveyed a mock 3D impression. CONCLUSIONS Image quality of conventional fundus imaging was superior to that of smartphone-based fundus imaging, although this novel smartphone-based fundus imaging device achieved image quality high enough to document various fundus pathologies including only subtle findings. High-quality smartphone-based fundus imaging might represent a mobile alternative for fundus documentation in clinical practice.

Online Data Security for Secure Cloud Storage

The capacity benefit given by cloud server is not completely trusted by clients. In existing system, data can be modified and corrupted by the unauthorized user with the assistance of the employees. Typically the information are safely taken care of by the organization yet a few employees offered the specifiers to programmers for cash. Because of this issue, the information are not protected. Hence the advanced safe technology is used. The information are uploaded by the encryption design with video mode and the information are downloaded by the client with the assistance of face detection video mode, at that point the administrator acknowledge the solicitation by the face recognition video mode and information are shared starting from one place to another. Utilizing the AES algorithm the information is shared safely. It is implemented in both hardware and software. It utilizes higher length key sizes, for instance, 128, 192 and 256 bits for encryption. It is most basic security convention utilized for wide range of uses, for example, wireless communication, money related exchanges, e-business, encoded information storage and so forth.

Optical endovascular imaging combining endoscopy, NBI and OCT, a feasibility study

For imaging of the vascular structure, angiography is state of the art. This can be done by contrast enhanced XRay, CT or MR imaging. But these modalities typically only show the blood flow and do not allow a depiction of the vasculature itself. To provide information about the vessel walls and plaques narrowing the blood flow, catheter based intra vascular ultrasound or vascular optical coherence tomography can be used. Optical endoscopic imaging is rarely used in vascular diagnosis. But endoscopic imaging can depict superficial inflammations or defects of the intima vessel layer and the real anatomical shape of the inner vasculature e.g. at bifurcations or aneurysms. Since OCT and endoscopic imaging both need a flushing to remove the blood for a short time, a combination of both modalities seems viable. For combining the two modalities, various background studies were performed including the selection of a feasible fibre endoscope, light source and camera system. A new pull-back and flushing device was designed and created for realizing the synchronous image acquisition using the two modalities. For calibration of the system and definition of the pullback and imaging parameters, first tests on artificial phantoms were performed. Then vascular and tissue models were imaged in a combined pullback mode after using the flush for complete blood removal. Endoscopic images were acquired in a video mode. The analysis of the images was done subjectively. As expected, the OCT provided structural information of the wall. The endoscopic images in combination with pullback appear blurry in video mode. The flushing liquid hinders the automatic focusing of the camera. Thus, smaller details could not be identified but bifurcations were visible. Even though the results were not good as expected, the study showed the potential of a bimodal system and addressed the issues faced in the initial implementation.

LEARNING ENGLISH USING MULTIMEDIA

With the aplication we can listen to and watch our most popular English learning podcasts and videos in LearnEnglish Audio &amp; Video. The app is packed with lots of cool features like landscape video mode, an audioscript and glossary. Improve your listening and learn new vocabulary on your mobile device, anytime, anywhere!