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  • 1
    Online-Ressource
    Online-Ressource
    Milton :Taylor & Francis Group,
    Schlagwort(e): Electronic books.
    Beschreibung / Inhaltsverzeichnis: This book presents an introduction to the foundations, interpretations, and data-analytic applications of symmetry studies with an emphasis on applications in optical sciences. Symmetry studies connect group theoretic and statistical methods for data summary and inference.
    Materialart: Online-Ressource
    Seiten: 1 online resource (209 pages)
    Ausgabe: 1st ed.
    ISBN: 9781466583986
    Serie: Multidisciplinary and Applied Optics Series
    DDC: 535
    Sprache: Englisch
    Anmerkung: Cover -- Half Title -- Series Page -- Title Page -- Copyright Page -- Dedication -- Contents -- Preface -- Authors -- Chapter 1: Symmetry Studies -- 1.1. Introduction -- 1.2. Bilateral Quantities -- 1.3. Sampling -- 1.4. Joint Bilateral Quantities -- 1.5. Covariance Structures -- 1.6. Visual Fields -- 1.7. Snellen Charts -- 1.8. Nystagmus -- 1.9. Corneal Curvature -- 1.10. Refraction -- 1.11. Extreme Values -- 1.12. Summary -- Chapter 2: Algebraic Aspects -- 2.1. Introduction -- 2.2. Main Definitions -- 2.3. Group Representations -- 2.4. Canonical Projections -- 2.5. Fourier Transforms -- 2.6. Additional Aspects -- 2.7. Summary -- Chapter 3: Dihedral Decompositions -- 3.1. Introduction -- 3.2. The Stokes Coefficients -- 3.3. The Group Algebra of Compensators -- 3.4. Elementary Optical Instruments -- 3.5. Coherence Matrix Formalism -- 3.6. Data-Analytic Considerations -- 3.7. Summary -- Chapter 4: Refraction -- 4.1. Introduction -- 4.2. Algebraic Descriptions -- 4.3. Finite Approximations -- 4.4. Conformal Analysis -- 4.5. The Refraction Study -- 4.6. Summary -- Chapter 5: Dihedral Polynomials -- 5.1. Introduction -- 5.2. Dihedral Polynomials -- 5.3. Between-Class Relations -- 5.4. Applications -- 5.5. Summary -- Chapter 6: Visual Perception of Symmetry -- 6.1. Introduction -- 6.2. A Symmetry Perception Experiment -- 6.3. The Elementary Orbits -- 6.4. Entropy Invariants -- 6.5. Product Orbit -- 6.6. Summary -- Chapter 7: Cyclic Reduction of Symbolic Sequences -- 7.1. Introduction -- 7.2. Symbolic Sequences -- 7.3. Injective Sequences -- 7.4. Scalar Quantifications -- 7.5. Orbit Invariance -- 7.6. Invariant Reductions -- 7.7. Entropy Invariants -- 7.8. Dihedral Fourier Analysis -- 7.9. Summary -- Chapter 8: Symmetrically Dependent Observations -- 8.1. Introduction -- 8.2. Models and Assumptions -- 8.3. The Joint Covariance Structure. , 8.4. Maximum Likelihood and Large-Sample Estimates -- 8.5. Visual Acuity Data Applications -- 8.6. Block-Equicorrelated Observations -- 8.7. Intraocular Pressure Data Applications -- 8.8. Linearizations of Ordered Symmetric Observations -- 8.9. Concomitants of Order Statistics -- 8.10. Bilateral Hemispherical Data Applications -- 8.11. Summary -- Chapter 9: Additional Aspects and Applications -- 9.1. Chromatic-Spatial Decompositions -- 9.2. Dihedral Summaries of Visual Field Data -- 9.3. Actions on Mappings -- 9.4. Local and Global Symmetries -- 9.5. Entropy and Symmetry -- 9.6. Matrix and Transformation Groups -- Appendix -- Bibliography -- Index.
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Springer
    Documenta ophthalmologica 91 (1995), S. 265-271 
    ISSN: 1573-2622
    Schlagwort(e): Malingering ; Optic nerve disorders ; Retinal disorders ; Stereoacuity ; Visual acuity
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract A study comparing the relative sensitivity for detecting abnormal stereoacuity in patients with retinal or optic nerve disease on clinically used stereoacuity tests is not available. It is also not apparent from the ophthalmic literature if optic nerve or retinal diseases are likely to have a greater impact on stereoacuity performance. We were also interested in determining a level of visual acuity loss that would likely result in an impairment of stereoacuity on these clinical tests. Forty-two patients with various retinal and optic nerve disorders and eighteen normal subjects were evaluated for stereoacuity using three tests: Titmus Stereoacuity Test (TST), Randot Stereoacuity Test (RST), and TNO Stereoacuity Test (TNO). The performance on these three stereoacuity tests was compared with the normal subjects. Additionally, TST scores from our patients were compared to predicted TST scores derived from a previously published nomogram. For patients with retinal and optic nerve disease, an abnormal score on one clinical test of stereoacuity was likely to predict an abnormality on the other tests. Performance on the TST relative to the predicted value derived from a nomogram was not significantly different for patients with retinal vs. optic nerve disease. With some exceptions, patients with visual acuities of 20/30 or worse in at least one eye were likely to show abnormal stereoacuity.
    Materialart: Digitale Medien
    Standort Signatur Einschränkungen Verfügbarkeit
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