Methods and apparatus for produce identification using time resolved reflectance spectroscopy

摘要

Systems and techniques for produce identification for transaction processing. A produce item to be entered into a transaction is identified using time resolved reflectance spectroscopy. A produce item is injected with laser light over a selected range of wavelengths, and light emitted from the produce item is detected and measured over time. The measurement is processed to generate absorption and scattering spectra for the produce item. The absorption and scattering spectra are compared against those of known produce items, and upon determination that an acceptable match has been achieved, a transaction record is updated with information relating to the produce item.