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ISO/IEC 15938-13:2015 Information technology - Multimedia content description interface - Part 13: Compact descriptors for visual search >
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ISO/IEC 15938-13:2015 Information technology - Multimedia content description interface - Part 13: Compact descriptors for visual search, 2015
- Introduction
- 1 Scope
- 2 Terms and definitions
- 3 Symbols and abbreviated terms
- 3.1 General
- 3.2 Abbreviations
- 3.3 Arithmetic operations
- 3.4 Logical operators
- 3.5 Relational operators
- 3.6 Bitwise operators
- 3.7 Assignment
- 3.8 Mnemonics
- 3.9 Constants
- 3.10 Functions
- 4 CDVS syntax
- 4.1 Binary representation syntax
- 4.2 Descriptor component semantics
- 5 CDVS encoding
- 5.1 General
- 5.2 Original image preprocessing
- 5.3 Interest point detection
- 5.3.1 Introduction
- 5.3.2 Scale space construction
- 5.3.3 Detection of scale-space extrema
- 5.3.4 Coordinate refinement to subpixel precision.
- 5.3.5 Transformation of coordinates and scale to the converted image resolution
- 5.3.6 Elimination of duplicates
- 5.3.7 Orientation Assignment
- 5.3.8 Interest point characteristics
- 5.4 Local feature selection
- 5.4.1 Operation
- 5.4.2 Descriptor components
- 5.5 Local feature description
- 5.6 Local feature descriptor aggregation
- 5.6.1 Operation
- 5.6.2 Descriptor components
- 5.7 Local feature descriptor compression
- 5.7.1 Operation
- 5.7.2 Descriptor components
- 5.8 Local feature location compression
- 5.8.1 Operation
- 5.8.2 Descriptor components
- 5.9 Encoding order of compressed local feature descriptors and relevance bits
- 5.10 Computation of the number of compressed local feature descriptors at different image descriptor lengths
- Annex A (informative) CDVS encoder organization
- Annex B (normative) Coefficients for coordinate refinement
- Annex C (normative) Probability values for the feature selection
- Annex D (normative) PCA projection matrix for local feature descriptor aggregation
- Annex E (normative) GMM parameters for local feature descriptor aggregation
- Annex F (normative) Gaussian function selection parameters for local feature descriptor aggregation
- Annex G (normative) Bit selection masks for local feature descriptor aggregation
- Annex H (normative) Scalar quantization thresholds for local feature descriptor compression
- Annex I (normative) Histogram count arithmetic coding model probabilities
- Annex J (normative) Histogram map arithmetic coding model probabilities
- Annex K (informative) CDVS decoding [Go to Page]