COMPUTER‐ASSISTED ANALYSIS TECHNIQUES FOR REMOTE SENSING DATA INTERPRETATION

Geophysics ◽  
1977 ◽  
Vol 42 (3) ◽  
pp. 468-481 ◽  
Author(s):  
Paul E. Anuta
Keyword(s):  
Gamma Ray ◽  
Remote Sensing Data ◽  
Data Interpretation ◽  
Magnetic Data ◽  
Computer Assisted ◽  
Data Sets ◽  
Visual Interpretation ◽  
Computer Based ◽  
Interpretation Process ◽  
Assisted Analysis

The development of airborne and satellite multispectral scanning radiometers has created widespread interest in the application of such sensors to mapping of earth resources. The energy sensed in each band can be used as a parameter in a computer‐based, multidimensional‐pattern‐recognition process to aid in the interpretation of the nature of elements in the scene. Images from each band can also be interpreted visually. Visual interpretation of 5 or 10 multispectral images simultaneously becomes impractical, especially as the area studied increases; hence, great emphasis has been placed on machine (computer‐assisted) techniques in the interpretation process. A number of other data sets have recently been studied and integrated by digital registration with the multispectral reflectance and radiance phenomena. Topographic data, which have been registered with four‐band Landsat multispectral scanner (MSS) data, are being studied to determine relationships between spectral and topographic variables. Geophysical variables. including gamma‐ray and magnetic data, have also been registered and studied using the multivariate analysis approach.

Precision and Reliability of the T-Scan III System

2020 ◽  
pp. 100-128
Author(s):  
Bernd Koos, DMD
Keyword(s):  
Measurement Method ◽  
Sequence Data ◽  
Timing Analysis ◽  
Computer Assisted ◽  
High Definition ◽  
Occlusal Force ◽  
Occlusal Contact ◽  
Precise Analysis ◽  
Computer Based ◽  
Assisted Analysis

Precise analysis of occlusal contacts and occlusal force is a problem in functional diagnostics that has not yet been satisfactorily resolved, despite the fact that the deleterious consequences of an unbalanced occlusion are widespread, and can be severe. In clinical practice, the present-day analysis of the occlusion is reduced to depicting force with color-marking foils that leave ink marks upon the teeth. However, these foils only indicate the localization of contacts, but do not describe reliably the occlusal force relationships. Precise analysis that incorporates time resolution, and plots the distribution of forces within the occlusion, is not possible when employing the traditional occlusal indicator methods. A detailed occlusal force and timing analysis can only be provided by performing a computer-assisted analysis, using the T-Scan III system (Tekscan, Inc. S. Boston, MA, USA), which records changing relative occlusal force levels and real-time occlusal contact sequence data, with high definition (HD) recording sensors. The following chapter demonstrates the accuracy and reliability of this computer-based occlusal measurement method that reliably describes the time-dependent distribution of occlusal force evolution.

Computer-assisted analysis of gamma-ray spectra

1971 ◽  
Vol 2 (1) ◽  
pp. 40-46 ◽  
Author(s):  
G.D. Atkinson ◽  
J.B. Whitworth ◽  
S.J. Gage
Keyword(s):  
Gamma Ray ◽  
Computer Assisted ◽  
Assisted Analysis

Identifying effective interpretation methods for magnetic data by profiling and analyzing human data interactions

2013 ◽  
Vol 1 (1) ◽  
pp. T45-T55 ◽  
Author(s):  
Yathunanthan Sivarajah ◽  
Eun-Jung Holden ◽  
Roberto Togneri ◽  
Michael Dentith
Keyword(s):  
Eye Gaze ◽  
Data Interpretation ◽  
Magnetic Data ◽  
Eye Tracker ◽  
Environmental Implications ◽  
Magnetic Image ◽  
Interpretation Process ◽  
Role Based ◽  
Geoscientific Data ◽  
The Impact

Geoscientific data interpretation is a highly subjective and complex task because human intuition and biases play a significant role. Based on these interpretations, however, the mining and petroleum industries make decisions with paramount financial and environmental implications. To improve the accuracy and efficacy of these interpretations, it is important to better understand the interpretation process and the impact of different interpretation techniques, including data processing and display methods. As a first step toward this goal, we aim to quantitatively analyze the variability in geophysical data interpretation between and within individuals. We carried out an experiment to analyze how individuals interact with magnetic data during the process of identifying prescribed targets. Participants performed two target spotting exercises where the same magnetic image was presented at different orientations. The task was to identify the magnetic response from porphyry-style intrusive systems. The experiment involved analyzing the data observation pattern during the interpretation process using an eye tracker system that captures the interpreter’s eye gaze motion and the target-spotting performance. The time at which targets were identified was also recorded. Fourteen participants with varying degrees of experience and expertise participated in this study. The results show inconsistencies within and between the interpreters in target-spotting performance. The results show a correlation between a systematic data observation pattern and target-spotting performance. Improved target-spotting performance was obtained when the magnetic image was observed from multiple orientations. These findings will help to identify and quantify the effective interpretation practices, which can provide a roadmap for the training of geoscientific data interpreters and contribute toward the understanding of the uncertainties in the data interpretation process.

Computer-assisted analysis of gamma-ray spectra

1984 ◽  
Vol 35 ◽  
pp. C-63
Author(s):  
G.D. Atkinson ◽  
J.B. Whitworth ◽  
S.J. Gage
Keyword(s):  
Gamma Ray ◽  
Computer Assisted ◽  
Assisted Analysis

Precision and Reliability of the T-Scan III System

2017 ◽  
pp. 846-875
Author(s):  
Bernd Koos
Keyword(s):  
Measurement Method ◽  
Sequence Data ◽  
Timing Analysis ◽  
Computer Assisted ◽  
High Definition ◽  
Occlusal Force ◽  
Occlusal Contact ◽  
Precise Analysis ◽  
Computer Based ◽  
Assisted Analysis

Precise analysis of occlusal contacts and occlusal force is a problem in functional diagnostics that has not yet been satisfactorily resolved, despite the fact that the deleterious consequences of an unbalanced occlusion are widespread and can be severe. In clinical practice, the present-day analysis of the occlusion is reduced to depicting force with color-marking foils that leave ink marks upon the teeth. However, these foils only indicate the localization of contacts, but do not describe reliably the occlusal force relationships. Precise analysis that incorporates time resolution and plots the distribution of forces within the occlusion is not possible when employing the traditional occlusal indicator methods. A detailed occlusal force and timing analysis can only be provided by performing a computer-assisted analysis, using the T-Scan III system (Tekscan, Inc. S. Boston, MA, USA), which records changing relative occlusal force levels and real-time occlusal contact sequence data with High Definition (HD) recording sensors. This chapter demonstrates the accuracy and reliability of this computer-based occlusal measurement method that reliably describes the time-dependent distribution of occlusal force evolution.

Precision and Reliability of the T-Scan III System

2015 ◽  
pp. 65-93 ◽  
Author(s):  
Bernd Koos
Keyword(s):  
Measurement Method ◽  
Sequence Data ◽  
Timing Analysis ◽  
Computer Assisted ◽  
High Definition ◽  
Occlusal Force ◽  
Occlusal Contact ◽  
Precise Analysis ◽  
Computer Based ◽  
Assisted Analysis

Precise analysis of occlusal contacts and occlusal force is a problem in functional diagnostics that has not yet been satisfactorily resolved, despite the fact that the deleterious consequences of an unbalanced occlusion are widespread and can be severe. In clinical practice, the present-day analysis of the occlusion is reduced to depicting force with color-marking foils that leave ink marks upon the teeth. However, these foils only indicate the localization of contacts, but do not describe reliably the occlusal force relationships. Precise analysis that incorporates time resolution and plots the distribution of forces within the occlusion is not possible when employing the traditional occlusal indicator methods. A detailed occlusal force and timing analysis can only be provided by performing a computer-assisted analysis, using the T-Scan III system (Tekscan, Inc. S. Boston, MA, USA), which records changing relative occlusal force levels and real-time occlusal contact sequence data with High Definition (HD) recording sensors. This chapter demonstrates the accuracy and reliability of this computer-based occlusal measurement method that reliably describes the time-dependent distribution of occlusal force evolution.

A new method for determination of magnetization direction

Geophysics ◽  
2006 ◽  
Vol 71 (6) ◽  
pp. L69-L73 ◽  
Author(s):  
Neal Dannemiller ◽  
Yaoguo Li
Keyword(s):  
Large Deviation ◽  
Three Dimensional ◽  
Vertical Gradient ◽  
Data Interpretation ◽  
Magnetic Data ◽  
Data Sets ◽  
Magnetization Direction ◽  
Total Magnetization ◽  
Total Gradient

The characterization and interpretation of magnetic anomalies rely upon knowledge of the total magnetization direction. Magnetization is usually assumed to consist solely, or primarily, of induced magnetization. The presence of strong remanent magnetization can alter the direction significantly and consequently adversely affect the interpretation, leading to erroneous sizes or shapes of causative bodies. Therefore, it is imperative to have some understanding of the total magnetization direction. We propose a method based upon the correlation between two quantities in magnetic data interpretation: the vertical gradient and the total gradient of the reduced-to-pole (RTP) field. This method is tested on both synthetic and field data sets. The results show that the method is effective in a variety of situations, including those with two-dimensional and three-dimensional dipping bodies and a field example that has a large deviation between the inducing field direction and the total magnetization direction.

Archaeological Interpretation of Marine Magnetic Data

2012 ◽  
Author(s):  
Robert Gearhart
Keyword(s):  
Remote Sensing ◽  
Magnetic Anomaly ◽  
Remote Sensing Data ◽  
Data Interpretation ◽  
Magnetic Data ◽  
Magnetic Interpretation ◽  
Sensing Data ◽  
The Past ◽  
Archaeological Interpretation ◽  
Historic Significance

Interpreting remote sensing data is one of the most important tasks of archaeologists working in submerged environments. Researchers rely on remote-sensing technologies to aid their search for historic shipwrecks of interest. Magnetometers are essential for detection of buried shipwrecks. The main goal of magnetic interpretation has been to distinguish shipwrecks from debris, usually resulting in an archaeological assessment of each anomaly concerning its potential for historic significance. The past two decades have seen improvement in archaeologists' abilities to detect shipwreck anomalies. This article provides a basic, nonmathematical summary of magnetism relevant to archaeological interpretation and the evolving perceptions of shipwreck anomalies. The basis for assessing magnetic anomaly significance must be firmly rooted in empiricism in order to improve the objectivity of data interpretation.

Computer-Assisted Analysis of Multi-Color Confocal Microscopic Datasets: Automated Light Microscopic Discrimination of Synaptic Relationships

1996 ◽  
Vol 54 ◽  
pp. 284-285
Author(s):  
M Wessendorf ◽  
A Beuning ◽  
D Cameron ◽  
J Williams ◽  
C Knox
Keyword(s):  
Nerve Fibers ◽  
Confocal Scanning Laser Microscopy ◽  
Computer Assisted ◽  
Nerve Terminals ◽  
Neuronal Somata ◽  
Scanning Laser Microscopy ◽  
Confocal Scanning ◽  
Entire Cell ◽  
Confocal Scanning Laser ◽  
Assisted Analysis

Multi-color confocal scanning-laser microscopy (CSLM) allows examination of the relationships between neuronal somata and the nerve fibers surrounding them at sub-micron resolution in x,y, and z. Given these properties, it should be possible to use multi-color CSLM to identify relationships that might be synapses and eliminate those that are clearly too distant to be synapses. In previous studies of this type, pairs of images (e.g., red and green images for tissue stained with rhodamine and fluorescein) have been merged and examined for nerve terminals that appose a stained cell (see, for instance, Mason et al.). The above method suffers from two disadvantages, though. First, although it is possible to recognize appositions in which the varicosity abuts the cell in the x or y axes, it is more difficult to recognize them if the apposition is oriented at all in the z-axis—e.g., if the varicosity lies above or below the neuron rather than next to it. Second, using this method to identify potential appositions over an entire cell is time-consuming and tedious.

Teaching Computer Based Historical Data Analysis

1994 ◽  
Vol 6 (1) ◽  
pp. 52-58 ◽  
Author(s):  
Charles Anderson ◽  
Robert J. Morris
Keyword(s):  
Data Analysis ◽  
Social History ◽  
Historical Data ◽  
Good Practice ◽  
Computer Assisted ◽  
Historical Data Analysis ◽  
University Of Edinburgh ◽  
Computer Based ◽  
The University

A case study ofa third year course in the Department of Economic and Social History in the University of Edinburgh isusedto considerandhighlightaspects of good practice in the teaching of computer-assisted historical data analysis.

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