Abstract

A method comprising: activating an illumination source to produce illuminating light: polarising the illuminating light in a first polarisation axis; illuminating at least part of a thin canopy plant crop with the polarised illuminating light to produce reflected illuminating light; polarising the reflected illuminating light in a second polarisation axis transverse to the first polarisation axis to produce cross-polarised reflected illuminating light; capturing an image of at least part of the thin canopy plant crop using the cross-polarised reflected illuminating light; and analysing the captured image to determine a condition of the thin canopy plant crop. Also an image capture system and a vehicle mounted image capture system.

IPC Classes  ?

• G06T 7/00 - Image analysis
• G06T 7/593 - Depth or shape recovery from multiple images from stereo images
• G06V 10/141 - Control of illumination
• G06V 10/60 - Extraction of image or video features relating to illumination properties, e.g. using a reflectance or lighting model
• G06V 20/10 - Terrestrial scenes
• G06V 20/56 - Context or environment of the image exterior to a vehicle by using sensors mounted on the vehicle

Abstract

A method comprising: activating a strobed or pulsed illumination source to produce illuminating light; polarising the illuminating light in a first polarisation axis; illuminating at least part of a tall plant crop with the polarised illuminating light to produce reflected illuminating light; polarising the reflected illuminating light in a second polarisation axis transverse to the first polarisation axis to produce cross-polarised reflected illuminating light; capturing an image of at least part of the tall plant crop using the cross-polarised reflected illuminating light; and analysing the captured image to determine a condition of the tall plant crop. Also a vehicle mounted image capture system, a vehicle mounted spraying system and a plant health management system.

IPC Classes  ?

• G01N 21/84 - Systems specially adapted for particular applications
• A01M 7/00 - Special adaptations or arrangements of liquid-spraying apparatus for purposes covered by this subclass
• A01M 21/04 - Apparatus for destruction by steam, chemicals, burning, or electricity
• G01N 21/21 - Polarisation-affecting properties
• G01N 33/00 - Investigating or analysing materials by specific methods not covered by groups
• G03B 15/05 - Combinations of cameras with electronic flash apparatusElectronic flash units
• G06V 20/10 - Terrestrial scenes

Abstract

A method comprising: activating an illumination source to produce illuminating light; polarising the illuminating light in a first polarisation axis; illuminating at least part of a thin canopy plant crop with the polarised illuminating light to produce reflected illuminating light; polarising the reflected illuminating light in a second polarisation axis transverse to the first polarisation axis to produce cross-polarised reflected illuminating light; capturing an image of at least part of the thin canopy plant crop using the cross-polarised reflected illuminating light; and analysing the captured image to determine a condition of the thin canopy plant crop. Also an image capture system and a vehicle mounted image capture system.

IPC Classes  ?

• A01M 21/04 - Apparatus for destruction by steam, chemicals, burning, or electricity
• G01N 21/21 - Polarisation-affecting properties

Abstract

A method comprising: activating a strobed or pulsed illumination source to produce illuminating light; polarising the illuminating light in a first polarisation axis; illuminating at least part of a tall plant crop with the polarised illuminating light to produce reflected illuminating light; polarising the reflected illuminating light in a second polarisation axis transverse to the first polarisation axis to produce cross-polarised reflected illuminating light; capturing an image of at least part of the tall plant crop using the cross-polarised reflected illuminating light; and analysing the captured image to determine a condition of the tall plant crop. Also a vehicle mounted image capture system, a vehicle mounted spraying system and a plant health management system.

IPC Classes  ?

• G01N 21/21 - Polarisation-affecting properties
• G06K 9/46 - Extraction of features or characteristics of the image
• G06T 1/00 - General purpose image data processing
• F21V 29/52 - Cooling arrangements using condensation or evaporation of a fluid, e.g. heat pipes electrically powered, e.g. refrigeration systems
• F21V 29/54 - Cooling arrangements using thermoelectric means, e.g. Peltier elements
• G06T 7/00 - Image analysis
• A01G 7/06 - Treatment of growing trees or plants, e.g. for preventing decay of wood, for tingeing flowers or wood, for prolonging the life of plants