Visual tests for measuring the picture quality of teleconsultations for medical purposes

AbstractA technical trend for a-Si TFTs is their application to large-size, high-pixel density AMLCDs such as XGA, EWS, and HDTV. In order to realize these LCDs, the TFT device characteristics must be improved. Future technologies, which will be necessary to fabricate TFTs with improved characteristics are as follows,(1) Fully self-aligned TFT technology: A SA-TFT structure reduces the feedthrough voltage caused by parasitic capacitance due to gate/source overlap. This results in an improved picture quality and a higher aperture ratio. Fabrication of such a structure would require ion doping technology.(2) Ion doping technology: This non-mass-separated implantation technique has large area doping capability and much higher doping speed compared to conventional ion implantation technique. The major problems with the ion doping technique is the implantation of unwanted species which deteriorate the quality of source/drain and channel regions of TFTs.

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A Bit Allocation Method for Smoothing Temporal Picture Quality of Wavelet Video Coders

2006 IEEE Workshop on Multimedia Signal Processing ◽

10.1109/mmsp.2006.285312 ◽

2006 ◽

Author(s):

Chi-wen Luo ◽

Jiann-jone Chen

Keyword(s):

Bit Allocation ◽

Picture Quality ◽

Allocation Method ◽

Video Coders

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New Concepts and Picture Quality of a 35mm Curved-Screen Shopping Center Theater

Journal of the SMPTE ◽

10.5594/j10951 ◽

1967 ◽

Vol 76 (9) ◽

pp. 909-911 ◽

Cited By ~ 4

Author(s):

Glenn Berggren ◽

Kenneth R. Leonard

Keyword(s):

Shopping Center ◽

Picture Quality ◽

New Concepts

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Measuring ATM video quality of service using an objective picture quality model

10.1117/12.371212 ◽

1999 ◽

Cited By ~ 1

Author(s):

Jiuhuai Lu ◽

Mainak Chatterjee ◽

Mayer D. Schwartz ◽

Mihir K. Ravel ◽

Wilfried M. Osberger

Keyword(s):

Quality Of Service ◽

Video Quality ◽

Picture Quality ◽

Quality Model

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Prediction of Color Television Picture Quality

Proceedings of the Human Factors Society Annual Meeting ◽

10.1177/107118137702100511 ◽

1977 ◽

Vol 21 (5) ◽

pp. 401-405

Author(s):

Charles P. Greening

Keyword(s):

Point Of View ◽

Picture Quality ◽

Television System ◽

Fundamental Limitations ◽

Home Entertainment ◽

Physical Measurements ◽

Image Characteristics ◽

Machine Interface ◽

Color Television

The nature of the man/machine interface in the color television system as used for home entertainment is explored and described. The problem of predicting picture quality is examined from the point of view of the receiver designer/manufacturer. The relevance of existing performance data, perference data, and physical measurements of image characteristics to the picture quality question is examined. Existing models and part-models are described, and the characteristics of a more complete, but hypothetical model are outlined. Fundamental limitations in the predictability of picture quality are described. These limitations arise in large part from the fact that many important factors in picture quality, such as quality of the broadcast signal, viewing conditions, and personal preferences are not controllable by the receiver manufacturer.

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