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G06V 10/52

Scale-space analysis, e.g. wavelet analysis (multi-scale boundary representations G06V10/42)

Introduced: January 2022

Title

Titles differ between systems:

IPC: Scale-space analysis, e.g. wavelet analysis

CPC: Scale-space analysis, e.g. wavelet analysis (multi-scale boundary representations G06V10/42)

Full Title

Full titles differ between systems:

IPC:

Arrangements for image or video recognition or understanding > Extraction of image or video features > Scale-space analysis, e.g. wavelet analysis

CPC:

Arrangements for image or video recognition or understanding (character recognition in images or video G06V30/10) > Extraction of image or video features > Scale-space analysis, e.g. wavelet analysis (multi-scale boundary representations G06V10/42)

Additional Content IPC

Glossary

CWT continuous wavelet transform DoG difference of Gaussians DWT discrete wavelet transform LoG Laplacian of Gaussian Haar wavelets Haar wavelet family of wavelets constructed from rescaled square-shaped functions steerable filters steerable filter class of orientation-selective convolution kernels used for feature extraction that can be expressed via a linear combination of a small set of rotated versions of themselves. As an example, the oriented first derivative of a two-dimensional [2D] Gaussian is a steerable filter.

Limiting references

Multi-scale boundary representations

No child classifications to compare. This is a leaf node in both IPC and CPC.

Top Applicants

Top Applicants (IPC)

Class G06,2013–2023, worldwide · Source: EPO PATSTAT

  1. SAMSUNG ELECTRONICS COMPANY KR 66,669
  2. IBM (INTERNATIONAL BUSINESS MACHINES CORPORATION) US 62,313
  3. MICROSOFT TECHNOLOGY LICENSING US 41,918
  4. GOOGLE US 32,969
  5. SGCC(STATE GRID CORPORATION OF CHINA) 30,822
  6. INTEL CORPORATION US 30,010
  7. TENCENT TECHNOLOGY (SHENZHEN) COMPANY 28,235
  8. HUAWEI TECHNOLOGIES COMPANY CN 26,079
  9. APPLE US 21,891
  10. HUAWEI TECHNOLOGIES COMPANY 20,505

Top Applicants (CPC)

Class G06,2013–2023, worldwide · Source: EPO PATSTAT

  1. SAMSUNG ELECTRONICS COMPANY KR 76,952
  2. IBM (INTERNATIONAL BUSINESS MACHINES CORPORATION) US 62,841
  3. MICROSOFT TECHNOLOGY LICENSING US 44,778
  4. GOOGLE US 35,735
  5. INTEL CORPORATION US 32,087
  6. HUAWEI TECHNOLOGIES COMPANY CN 30,572
  7. TENCENT TECHNOLOGY (SHENZHEN) COMPANY 25,023
  8. APPLE US 23,482
  9. SGCC(STATE GRID CORPORATION OF CHINA) 22,548
  10. HUAWEI TECHNOLOGIES COMPANY 20,917