BS ISO/IEC 15938-13:2015

Foreword
Introduction
1 Scope
2 Terms and definitions
3 Symbols and abbreviated terms
4 CDVS syntax
5 CDVS encoding
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

Defines an image description tool designed to enable efficient and interoperable visual search applications, allowing visual content matching in images.