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BS ISO/IEC 15938-13:2015

BS ISO/IEC 15938-13:2015

$215.11

Information technology. Multimedia content description interface – Compact descriptors for visual search

Published By Publication Date Number of Pages
BSI 2015 158
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PDF Catalog

PDF Pages PDF Title
8 Introduction
9 1 Scope
2 Terms and definitions
10 3 Symbols and abbreviated terms
3.1 General
3.2 Abbreviations
11 3.3 Arithmetic operations
3.4 Logical operators
3.5 Relational operators
12 3.6 Bitwise operators
3.7 Assignment
3.8 Mnemonics
3.9 Constants
3.10 Functions
13 4 CDVS syntax
4.1 Binary representation syntax
14 4.2 Descriptor component semantics
17 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
18 5.3.3 Detection of scale-space extrema
22 5.3.4 Coordinate refinement to subpixel precision.
25 5.3.5 Transformation of coordinates and scale to the converted image resolution
5.3.6 Elimination of duplicates
5.3.7 Orientation Assignment
27 5.3.8 Interest point characteristics
5.4 Local feature selection
5.4.1 Operation
28 5.4.2 Descriptor components
29 5.5 Local feature description
31 5.6 Local feature descriptor aggregation
5.6.1 Operation
34 5.6.2 Descriptor components
35 5.7 Local feature descriptor compression
5.7.1 Operation
38 5.7.2 Descriptor components
39 5.8 Local feature location compression
5.8.1 Operation
44 5.8.2 Descriptor components
45 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
46 Annex A (informative) CDVS encoder organization
47 Annex B (normative) Coefficients for coordinate refinement
49 Annex C (normative) Probability values for the feature selection
52 Annex D (normative) PCA projection matrix for local feature descriptor aggregation
63 Annex E (normative) GMM parameters for local feature descriptor aggregation
143 Annex F (normative) Gaussian function selection parameters for local feature descriptor aggregation
144 Annex G (normative) Bit selection masks for local feature descriptor aggregation
146 Annex H (normative) Scalar quantization thresholds for local feature descriptor compression
150 Annex I (normative) Histogram count arithmetic coding model probabilities
152 Annex J (normative) Histogram map arithmetic coding model probabilities
153 Annex K (informative) CDVS decoding

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BS ISO/IEC 15938-13:2015
$215.11