scholarly journals Use of Time-lapse Video to Demonstrate Plant Growth Regulator (PGR) Responses

HortScience ◽  
2004 ◽  
Vol 39 (4) ◽  
pp. 875A-875
Author(s):  
Derek D. Woolard* ◽  
Judy Fugiel ◽  
F. Paul Silverman ◽  
Peter D. Petracek

Tables, graphs, and photographs can effectively convey detailed results of a PGR experiment. However, we have observed that demonstrating PGR treatment effects by time-lapse video creates a strong impact on both scientists and non-technical audiences. Time-lapse video also provides a method for obtaining a continuous visual record that can be used to establish the precise chronology of a slow process. Recent advances in notebook computers, inexpensive digital cameras (e.g. 3Com HomeConnect™), and time-lapse software (e.g. Picture WorkLive™) allow scientists and teachers to inexpensively prepare time-lapse videos. Important considerations for the production of quality time-lapse videos include: 1. treatment effects should be substantial, consistent, and visible, 2. digital camera images should be clear, 3. lighting should be constant and provide adequate brightness and proper color, 4. camera movement such as those due to vibrations should be minimal, 5. camera placement should simplify composition. Time-lapse videos of PGR treatment effects will be shown, and methods of production will be discussed.

Bird Study ◽  
2005 ◽  
Vol 52 (2) ◽  
pp. 159-165 ◽  
Author(s):  
Allan J. Perkins ◽  
Mark H. Hancock ◽  
Nigel Butcher ◽  
Ron W. Summers

Zygote ◽  
2020 ◽  
pp. 1-9 ◽  
Author(s):  
Romualdo Sciorio

Summary During human in vitro culture, a morphological microscope analysis is normally performed to select the best embryo to transfer, with the hope of obtaining a successful pregnancy. The morphological evaluation may combine number and size of blastomeres, fragmentation, multinucleation, blastocyst expansion, inner-cell mass and trophectoderm appearance. However, standard microscopy evaluation involves the removal of the embryos from the incubator, exposing them to changes in pH, temperature, and oxygen level. Additionally, morphological assessments might include high inter-observer variability. Recently, continuous embryo culture using time-lapse monitoring (TLM) has allowed embryologists to analyse the dynamic and morphokinetic events of embryo development and, based on that, the embryologist is able to scrutinize the complete sequence of embryonic evolution, from fertilization to the blastocyst formation. Therefore, TLM allows an uninterrupted culture condition, reducing the need to remove embryos from the incubator. The monitoring system is normally composed of a standard incubator with an integrated microscope coupled to a digital camera, which is able to collect images at regular times, and subsequently processed into video. These data can be annotated and analyzed using an integrated software, therefore this allows embryologists to facilitate the process of embryo selection for transfer. The main aim of this paper is to discuss the potential benefits and uses of the TLM in the embryology laboratory.


Author(s):  
RUDY W HERLAMBANG ◽  
MOHAMAD SUHARTO ◽  
TRI MARUTAMA ◽  
NADIA SIGI PRAMESWARI

Perkembangan teknologi maklumat semakin mendorong manusia untuk membangun dan mencipta inovasi. Teknologi dapat mengembangkan potensi manusia dalam mencipta produk moden. Transformasi teknologi yang pesat dari semasa ke semasa dengan meluasnya perkembangan media audiovisual, serta teknik dalam penggambaran video seperti selang masa dan sinematik. Kajian ini bertujuan untuk mengkaji nilai estetika teknik video selang masa dan sinematik dengan mengambil kajian kes dua video, iaitu Exploring Cultural Heritage: The Old Wall in Solo and The Beauty of the City of Solo (Surakarta). Analisis dilakukan dalam lima aspek, iaitu keunikan idea, isi atau mesej, aspek komunikatif, nilai estetika, dan kualiti teknik penggambaran dan teknik suara. Penulis memfokuskan pada analisis video teknik selang masa dan teknik video sinematik berdasarkan nilai estetik yang muncul. Nilai estetik kedua-dua video dapat dilihat dari penggunaan teknik selang masa yang mendorong perspektif penonton mengenai aktiviti semula jadi dan aktiviti sosial yang berlaku dari sesuatu objek. Setelah disatukan ke dalam projek media audio-visual, keindahan objek dapat dipaparkan. Sebaliknya, perspektif yang dihasilkan melalui teknik video sinematik memberikan rasa objek, iaitu video yang mewakili kemegahan objek warisan budaya dengan sudut tinggi terus bergerak di atas objek. Hal Ini mendorong penonton untuk memperoleh maklumat dan nilai, yang disertakan melalui teknik video selang masa dan teknik video sinematik.   The development of information technology increasingly encourages people to develop and create innovation. Technology can develop human potential in creating a modern product. The rapid technological transformation from time to time is marked by the widespread of developing audiovisual media, as well as by techniques in video shooting such as time lapse and cinematic. This study examines the aesthetic values of time lapse and cinematic video techniques by taking a case study of two videos, namely Exploring Cultural Heritage: The Old Wall in Solo and The Beauty of the City of Solo (Surakarta). Analysis was done in five aspects, namely the uniqueness of ideas, content or message, communicative aspects, aesthetic values, and the quality of shooting and sound techniques. The authors focused on video analysis of time-lapse video technique and cinematic video technique based on aesthetic value which emerge. The aesthetic value of both videos can be seen from the use of time-lapse technique that encourages perspective viewers about the natural and social activities that occur from an object. Having been assembled into an audio-visual media project, the beauty of an object can be projected. On the other hand, the perspective developed through cinematic technique video media is to provide a sense of object, a video that represents the splendor of a cultural heritage object with a high angle continuously moving over the object. This is to lead the audience to be able to obtain messages and values, which are embedded through both time-lapse video technique and cinematic video technique.


1994 ◽  
Vol 135 (9) ◽  
pp. 209-210 ◽  
Author(s):  
M. McCoy ◽  
D. Rice ◽  
A. Wright ◽  
D. Kennedy

2014 ◽  
Vol 56 (1) ◽  
pp. 587-597 ◽  
Author(s):  
J. A. Majdi ◽  
H. Qian ◽  
Y. Li ◽  
R. J. Langsner ◽  
K. I. Shea ◽  
...  

Symmetry ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 1218
Author(s):  
Aleksandr Kulchitskiy

The article proposes a solution to the problem of increasing the accuracy of determining the main shaping dimensions of axisymmetric parts through a control system that implements the optical method of spatial resolution. The influence of the projection error of a passive optical system for controlling the geometric parameters of bodies of revolution from the image of its sections, obtained by a digital camera with non-telecentric optics, on the measurement accuracy is shown. Analytical dependencies are derived that describe the features of the transmission of measuring information of a system with non-telecentric optics in order to estimate the projection error. On the basis of the obtained dependences, a method for compensating the projection error of the systems for controlling the geometry of the main shaping surfaces of bodies of revolution has been developed, which makes it possible to increase the accuracy of determining dimensions when using digital cameras with a resolution of 5 megapixels or more, equipped with short-focus lenses. The possibility of implementing the proposed technique is confirmed by the results of experimental studies.


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