Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Hakki H. Refai"'
Publikováno v:
Endoscopy International Open
Endoscopy International Open, Vol 08, Iss 11, Pp E1553-E1559 (2020)
Endoscopy International Open, Vol 08, Iss 11, Pp E1553-E1559 (2020)
Background and study aims Fifty-eight percent of American adults aged 50 to 75 undergo colonoscopies. Multiple factors result in missed lesions, at a rate of approximately 20 %, potentially subjecting patients to colorectal cancer. We report on use o
Publikováno v:
Journal of Display Technology. 11:266-272
Efficient up-conversion emitters are necessary to generate a full-color 3D display. Rare-earth, co-doped fluorides that efficiently convert near infrared diode laser emission to visible red, green, and blue light by sequential two photon absorption a
Autor:
Hakki H. Refai
Publikováno v:
Journal of Display Technology. 7:186-192
We explore here the capabilities and performance issues encountered when using a novel static volume display, CSpace, for realizing moving images required to deliver real time three-dimensional (3D) visualization and manipulation for Air Traffic Cont
Autor:
Hakki H. Refai
Publikováno v:
Journal of Display Technology. 5:391-397
We present here the development of a volumetric display based on the two-frequency, two-step upconversion technique using novel techniques for addressing the imaging volume. Two 1024 times 768 digital micromirror displays, driven by 30-W lasers at 15
Publikováno v:
SPIE Proceedings.
As 3D printer technology has rapidly developed and penetrated into a wide range of applications, several methods for creating 3D objects have been explored and developed. One such method utilizes UV curing of special resins, where the patterning of e
Publikováno v:
SPIE Proceedings.
We are currently in the process of developing a static-volume 3D display, CSpace® display, that has the capability to produce images of much larger size than any other static-volume display currently under development, with up to nearly 800 million
Autor:
Hakki H. Refai
Publikováno v:
SPIE Proceedings.
This proposed display constructs different images within three layers viewable around a 180 degree arc. The display contains special particles suspended within its image space, that when excited by two different infrared lasers, illuminate to generat
Publikováno v:
SPIE Proceedings.
An ongoing public-private research partnership has demonstrated a three-dimensional (3D) volumetric display system that incorporates a static image space. The 3D display system uses micro-electro-mechanical systems (MEMS) based mirror arrays to direc
Publikováno v:
Medical Imaging: Image-Guided Procedures
Advances in medical imaging technologies are assisting radiologists in more accurate diagnoses. This paper details an autostereoscopic static volumetric display, called CSpace®, capable of projecting three-dimensional (3D) medical imaging data in 3D
Autor:
Hakki H. Refai
Publikováno v:
Biomedical Optics and 3-D Imaging.
Single-color three-dimensional (3-D) images with natural depth cues and without flicker are generated by utilizing two digital micromirror devices (DMD) that provide fast scanning of the image space doped with upconversion materials.