3643215

Information

• Patent Grant
• 3643215

• References
• Source

• Patent Number

  3,643,215

• Date Filed

  Not available

• Date Issued

  Tuesday, February 15, 1972
  53 years ago

• CPC

  • G06K9/6857 - Coarse/fine approaches
  • G06K9/80 - Combination of image preprocessing and recognition functions
  • G06K11/04 - using an auxiliary scanning pattern

• US Classifications

  • 382 - Image analysis