scholarly journals 3. Large Format Image Sensor Processing Technology for High Quality Movie

2014 ◽  
Vol 68 (3) ◽  
pp. 199-202
Author(s):  
Arata Motoyama ◽  
Takamasa wada
Keyword(s):  
Image Sensor ◽  
Processing Technology ◽  
High Quality ◽  
Large Format ◽  
Sensor Processing

Large-format 1280 x 1024 full-frame CCD image sensor with a lateral-overflow drain and transparent gate electrode

1991 ◽  
Author(s):  
Eric G. Stevens ◽  
Stephen L. Kosman ◽  
John C. Cassidy ◽  
Winchyi Chang ◽  
Wesley A. Miller
Keyword(s):  
Image Sensor ◽  
Gate Electrode ◽  
Large Format ◽  
Ccd Image Sensor ◽  
Ccd Image

scholarly journals Documentación y reconstrucción virtual en restauración de obras pictóricas de gran formato: el lienzo mural de la farmacia Zambrano

2020 ◽  
Vol 11 (23) ◽  
pp. 141
Author(s):  
Ana Isabel Calero-Castillo ◽  
Ana Carrasco-Huertas ◽  
Marta Durbán-García ◽  
Jorge Alberto Durán-Suárez
Keyword(s):  
Three Dimensional ◽  
3D Models ◽  
Street Dust ◽  
Mural Painting ◽  
Animal Glue ◽  
Initial State ◽  
High Quality ◽  
Large Format ◽  
Restoration Process ◽  
Virtual Reconstruction

<p>The aim of this paper is to explain the convenience of photogrammetry and virtual reconstruction applied to the restoration of large format canvas. This study presents the application of these techniques to the restoration and musealization of a late 19th century mural canvas painting attached to the ceiling of the Zambrano Pharmacy (Granada, Spain). The painting is an example of the allegorical motifs that could be found in 19th and 20th century pharmacies. It represents a group of cherubs and allegorical figures of Science or Pharmacy sitting in the clouds; the scene is surrounded by an architectural frame. The mural painting by Francisco Morón &amp; Luján (Granada, 1846 - Huércal-Overa, Almería, 1899) shows his signature in the lower right corner of the painting. The painting was in a good overall condition, but presented considerable yellowing and darkening (due to exposure to nearby pollution from the street, dust, etc.) that required its cleaning to reveal its true colors. In 2018, the pharmacy was acquired by the University of Granada, initiating its transfer to the conservation laboratories for its restoration, with two aims: recovering its original appearance, and preparing for its display in the “Ciencia, ciudad y cambio” exhibition (Hospital Real of Granada, February 6th to may 17th 2019); to this day, the painting is located in the crossing of the Hospital Real.</p><p>Once the intervention started, its large dimensions (7.6 x 3.3 m) made it impossible to obtain a complete high-quality orthogonal image using traditional photography methods. Therefore, it was decided to use photogrammetry for the correct documentation of: a) the initial state of the painting, b) the different restoration phases (initial documentation, mechanical cleaning of the reverse, removal of the protection of the front, cleaning of the front and pictorial reintegration), and c) the final result after the restoration process. Furthermore, this canvas was attached to the ceiling presumably with an animal glue adhesive, and during its intervention it was observed that the imprint of an earlier mural painting was attached to its reverse. Since the reverse of the canvas was hidden by the final mounting system, it was necessary to document the imprint of the previous mural painting adhered to the reverse of the canvas.</p><p>To recreate the original painting and to allow a correct study and comprehension of this work, a virtual reconstruction based on the photogrammetric documentation of the reverse of the painting was achieved. The photogrammetric processing allowed us to obtain high-quality orthogonal images (10000 x 5000 px), thus demonstrating the suitability of this technique for the documentation of a large format canvas. The images obtained were also useful to study the dimensions of the paint, with a total area of 25 m2. Agisoft PhotoScan Professional was used for the photogrammetric model; the three-dimensional (3D) models and the textures were transferred to a 3D free software (Blender) for the rendering and recreation of the models. On the other hand, the virtual reconstruction was made using Adobe Photoshop to recover the entire painting. The methodology consisted in working with different layers to paint the missing parts of the motifs and the simulated architecture; then, the missing parts were reconstructed based on the preserved paint (24.5% of the total area) and, finally, textures and filters were incorporated to simulate the appearance of a mural painting.</p><p>This research has proved photogrammetry is suitable for the documentation of a restoration process for large format pictoric works, since this technique allows to obtain high resolution orthophotos from the different intervention phases. Additionally, the virtual reconstruction has proven to be a useful tool for the documentation of the painting, its registration and its visualization; it can also recreate the decorative pattern and original colors.</p>

Application of Image Processing Technology in Welds Ultrasonic Testing

2013 ◽  
Vol 397-400 ◽  
pp. 1519-1522
Author(s):  
Jian He ◽  
Lian Cheng Zhu ◽  
Ke Cheng Wang
Keyword(s):  
Image Processing ◽  
Ultrasonic Testing ◽  
Region Growing ◽  
Image Sensor ◽  
Processing Technology ◽  
Image Feature ◽  
Linear Regression Method ◽  
Image Processing Algorithm ◽  
Image Processing Technology ◽  
Voltage Signal

In order to ensure the real-time tracking of weld ultrasonic testing, applied CCD weld image sensor image, through image processing technology, used homomorphic filtering, two value methods to pre-process the image acquisition, extracted image feature information used region growing and linear regression method, and thus determined the edge weld, after A/D conversion, got feedback of the voltage signal position deviation amount, controlled servo motor drive the bracket to move, ensured effective tracking ultrasonic tester. Through simulation, verified the accuracy and feasibility of the image processing algorithm,which got ideal effectused in the practical application.

A low power global shutter pixel with extended FD voltage swing range for large format high speed CMOS image sensor

2015 ◽  
Vol 58 (4) ◽  
pp. 1-10
Author(s):  
YangFan Zhou ◽  
ZhongXiang Cao ◽  
Ye Han ◽  
QuanLiang Li ◽  
Cong Shi ◽  
...  
Keyword(s):  
Low Power ◽  
High Speed ◽  
Cmos Image Sensor ◽  
Image Sensor ◽  
Large Format ◽  
Voltage Swing

Development of Blended Yarns of Slenderized Wool and Mercerized Cotton

2011 ◽  
Vol 298 ◽  
pp. 108-112
Author(s):  
Yi Ping Ji ◽  
Rui Wang ◽  
Xiu Ming Jiang
Keyword(s):  
Natural Fiber ◽  
The Self ◽  
Processing Technology ◽  
High Quality

The self-developed processing technology of slenderized wool and mercerized sliver, fiber performances and technology of blended yarns were introduced. High quality natural fiber blended yarns were obtained through blended spinning of secant slenderized wool and mercerized cotton under certain proportion.

Old and New Embankment Splicing Technology in Highway Reconstruction Project

2014 ◽  
Vol 587-589 ◽  
pp. 1190-1193 ◽  
Author(s):  
Gao Zhan
Keyword(s):  
Differential Settlement ◽  
Processing Technology ◽  
Good Effect ◽  
Construction Technology ◽  
Construction Process ◽  
Treatment Technology ◽  
High Quality ◽  
Rational Use ◽  
Cutting Slope ◽  
Reconstruction Project

In order to make a better convergence of old and new roadbed,according to treatment technology about highway reconstruction project of new and old roadbed lap,we introduced the four good construction technology detailedly used in the construction process. Four kinds of processing technology can significantly reduce differential settlement caused by road diseases,and strengthen the widening subgrade integrity.The results show that the appropriate cutting slope and excavation steps, a good degree of compaction, the rational use of geosynthetic materials, the use of the use of high quality packing can make the new and old roadbed integrity, achieve good effect of design and construction and reduced the incidence of disease.

scholarly journals Mapping Collected Memory: An Exploration of Memory-Based Navigation in Amman, Jordan

2014 ◽  
Vol 3 ◽  
pp. 138-159
Author(s):  
Regina Mamou
Keyword(s):  
Large Scale ◽  
Subjective Experience ◽  
High Quality ◽  
Large Format ◽  
Changing Environment ◽  
Still Images ◽  
Specific Location ◽  
The City

The purpose of this research is to explore navigational and image-making methods in a context where maps and formal address systems have been minimally consulted in recent years. This investigation is approached by way of a research-based art project on subjective cartography, which was carried out from 2009 to 2010 during a Fulbright fellowship to Amman, Jordan. The project examines the mutability of a specific location as well as its relationship between obsolescence in cartographic resources and the photographic medium. By reaching out to Ammani residents for informal tours of the city, selected guides were asked to narrate their experiences of navigating the city by memory and then directed to point out key landmarks during this process. Later, these tours were re-memorized and landmarks were photographed as a representation of the afterimage to capture high-quality still images through the use of a large-format photographic device. These afterimages are not intended to serve as documents or memorials of Amman but rather as ruminations on the faculties of memory in an ever-changing environment. This subjective experience, or the observation of a city’s minutiae amid wayfinding, poses a series of inquiries, vis-à-vis memory-based navigation and the role of still images, as an alternative to the panoptic view of a map. The result is a meditative project considering the plasticity of an urban entity, presented as a composition of written material and large-scale photographs, fragments of the city that when viewed as a series come together as a constellation of a subjective whole. 

Sign in / Sign up

Export Citation Format

Share Document