نتایج جستجو برای: lossy metallic box

تعداد نتایج: 130782  

Journal: :journal of dentistry, tehran university of medical sciences 0
mahkameh moshfeghi majid shahbazian soodabeh sadat sajadi sepideh sajadi hossein ansari

objectives : optimum viewing conditions facilitate identification of radiographic details and decrease the need for retakes, patients’ costs and radiation dose. this study sought to evaluate the effects of different viewing conditions on radiographic interpretation. materials and methods: this diagnostic study was performed by evaluating radiograph of a 7mm-thick aluminum block, in which 10 hol...

1999
Masahiro Iwahashi Shinji Fukuma Somchart Chokchaitam Noriyoshi Kambayashi

In this report, a digital image data compression method which has two modes – “losslesss” mode and “lossy” mode – and also “progressive” functionality is proposed. The coding system can be optimized for an arbitrary input image signal under the lossless / lossy unified coding gain introduced here.

2012
ESWARA REDDY

When working with color images, many processing algorithms and procedures can perform separation of pixel values into their luminance and chrominance components .This paper presents a new approach to compress the luminance and chrominance components using lossy and lossless Binary Plane Techniques respectively. The results are compared with the compression applied directly on RGB image using lo...

Journal: :CoRR 2012
John Scoville

An alternative approach to two-part ’critical compression’ is presented. Whereas previous results were based on summing a lossless code at reduced precision with a lossy-compressed error or noise term, the present approach uses a similar lossless code at reduced precision to establish absolute bounds which constrain an arbitrary lossy data compression algorithm applied to the original data.

Journal: :iranian journal of science and technology (sciences) 2014
s. sai srikant

microwave energy has potential for the efficient heating of minerals. minerals or materials, which couple to microwave energy are called dielectrics and many valuable minerals are found to be dielectric. the mineral ilmenite is one which shows good dielectric heating characteristics. in this paper, the effect of microwave heat energy on the partial reduction of oxidized ilmenite oxidized in ...

Journal: :CoRR 2017
Qi Liu Yawen Zhang Qin Lv Li Shang

During summer, melt ponds have a significant influence on Arctic sea-ice albedo. The melt pond fraction (MPF) also has the ability to forecast the Arctic sea-ice in a certain period. It is important to retrieve accurate melt pond fraction (MPF) from satellite data for Arctic research. This paper proposes a satellite MPF retrieval model based on the multi-layer neural network, named MPF-NN. Our ...

2017
Xuelong Li Mulin Chen Feiping Nie Qi Wang

Group detection is fundamentally important for analyzing crowd behaviors, and has attracted plenty of attention in artificial intelligence. However, existing works mostly have limitations due to the insufficient utilization of crowd properties and the arbitrary processing of individuals. In this paper, we propose the Multiview-based Parameter Free (MPF) approach to detect groups in crowd scenes...

2010
Steven G. Johnson

We give an example of a geometry in which the electrostatic force between a point charge and a neutral metallic object is repulsive. The example consists of a point charge centered above a thin metallic hemisphere, positioned concave up. We show that this geometry has a repulsive regime using both a simple analytical argument and an exact calculation for an analogous twodimensional geometry. An...

Journal: :IEEE Trans. Information Theory 2000
Karthik Visweswariah Sanjeev R. Kulkarni Sergio Verdú

In this correspondence we investigate the performance of the Lempel–Ziv incremental parsing scheme on nonstationary sources. We show that it achieves the best rate achievable by a finite-state block coder for the nonstationary source. We also show a similar result for a lossy coding scheme given by Yang and Kieffer which uses a Lempel–Ziv scheme to perform lossy coding.

1999
Tianyu Lu Zixiang Xiong D. Y. Y. Yun

This paper describes a prototype telemedicine system for remote 3D radiation treatment planning. Due to voluminous medical image data and image streams generated in interactive frame rate involved in the application, the importance of deploying adjustable lossy to lossless compression techniques is emphasized in order to achieve acceptable performance via various kinds of communication networks...

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