Circulars - South African Astronomical Observatory

• Record Nr.: UNISA996211726203316
• Pubbl/distr/stampa: [Cape Town], : South African Astronomical Observatory
• Descrizione fisica: 1 online resource
• Disciplina: 523/.005
• Soggetti: Southern sky (Astronomy); Observations.
• Lingua di pubblicazione: Inglese
• Formato: Materiale a stampa
• Livello bibliografico: Periodico
• Note generali: Title from cover.; No. 1-5 called also: Vol. 1, no. 1-v. 1, no. 5.

IEEE Std 1858-2016 (Incorporating IEEE Std 1858-2016/Cor 1-2017) : IEEE Standard for Camera Phone Image Quality / / Institute of Electrical and Electronics Engineers

• Record Nr.: UNISA996280485803316
• Pubbl/distr/stampa: New York, NY, USA : , : IEEE, , 2017
• ISBN: 1-5044-2388-7
• Descrizione fisica: 1 online resource (xi, 131 pages) : illustrations
• Collana: IEEE Standard
• Disciplina: 621.380414
• Soggetti: Image transmission; Imaging systems - Image quality
• Lingua di pubblicazione: Inglese
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Nota di contenuto: Overview -- Normative references -- Definitions, acronyms, and abbreviations -- Test conditions and apparatus -- Spatial frequency response (SFR) -- Lateral chromatic displacement -- Chroma level -- ; Color uniformity -- Local geometric distortion -- Visual noise -- Texture blur -- Annex A (normative) Subjective evaluation methodology -- Annex B (normative) Viewing conditions and conversion to angular spatial frequency -- Annex C (normative) Slanted edge SFR algorithm -- Annex D (normative) Visual noise processing -- Annex E (normative) Steps to calculate texture acutance -- Annex F (informative) SFR data processing -- Annex G (informative) Linearization by inversion of gamma curve -- Annex H (informative) Example acutance calculation -- Annex I (informative) Color uniformity illustrative example -- Annex J (informative) Lateral chromatic displacement -- illustrative example -- Annex K (informative) Extracting the dots from the target -- Annex L (informative) Dot center validation -- Annex M (informative) Local geometric distortion -- illustrative example and validation -- Annex N (informative) Grid sort -- Annex O (informative) Derivation of objective metric to JND mapping -- Annex P (informative) Fitting the texture MTF -- Annex Q (informative) Example texture analysis -- Annex R (informative) Example texture blur results -- Annex S (informative) Texture blur chart design -- Annex T (informative) Subjective data and models -- Annex U (informative) Bibliography.