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Related Concept Videos

Data Collection III01:05

Data Collection III

The physical assessment examines the patient for objective data that defines the patient's condition, and aids in formulating the nursing care plan. The purpose of physical assessment is a health status appraisal, which includes identifying health problems, and establishing a database for nursing intervention.
The principles to begin the physical assessment include conducting a comprehensive or problem-related history in a quiet, well-lit room, emphasizing privacy and comfort for the patient.

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Related Experiment Video

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Integrated Photoacoustic Ophthalmoscopy and Spectral-domain Optical Coherence Tomography
11:21

Integrated Photoacoustic Ophthalmoscopy and Spectral-domain Optical Coherence Tomography

Published on: January 15, 2013

Three methods of information assessment for optical data processing.

J C Viénot, J Duvernoy, G Tribillon

    Applied Optics
    |February 4, 2010
    PubMed
    Summary
    This summary is machine-generated.

    This study explores optical information processing methods for data compression and analysis. Techniques like spatial frequency band compression, sampling, and averaging are presented for applications in holography, image processing, and manuscript analysis.

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    Area of Science:

    • Optical Information Processing
    • Data Compression
    • Holography

    Background:

    • Determining specific information in messages is crucial for coding and data processing.
    • Optical information processing methods have evolved from basic definitions.

    Purpose of the Study:

    • To explore methods for optical information compression and extraction.
    • To present developments in spatial frequency band compression, sampling, and averaging techniques.

    Main Methods:

    • Utilizing characteristic spatial frequency bands for Fourier term compression.
    • Applying geometrical compression for coding printed texts.
    • Employing spectrum selection and signal averaging for data extraction.

    Main Results:

    • Demonstrated image replication at specific energy levels.
    • Developed phase sampling grids and analyzed object displacement via wavefront sampling.
    • Recorded incoherent holograms and constructed average letters for manuscript comparison.

    Conclusions:

    • Spatial frequency band compression enhances transfer density and storage capacity.
    • Sampling and averaging permit discrete signal data extraction.
    • Methods are applicable to diverse fields including holography, image processing, and psychological test appraisal.