Patents by Inventor Zhide LOH

Zhide LOH has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for estimating chlorophyll content of a leaf
    Patent number: 11885683
    Abstract: A method of estimating chlorophyll content of a leaf including providing a device wherein the device includes a mobile computing device with a digital camera; and a peripheral removably attached to the mobile computing device, the peripheral including a light source aligned with the digital camera, wherein the peripheral provides for a space between the light source and the digital camera; capturing by the digital camera a first image of the light source turned on without the leaf interposed between the digital camera and the light source; retrieving exposure data of the first image; capturing by the digital camera a second image with the leaf interposed between the digital camera and the turned on light source; retrieving exposure data of the second image; and using a processor, estimating the chlorophyll content of the leaf based on the retrieved exposure data of the first and second images.
    Type: Grant
    Filed: May 28, 2020
    Date of Patent: January 30, 2024
    Assignee: YARA INTERNATIONAL ASA
    Inventors: Idaly Ali, Matthew Lim, Robin Yeo, Zhide Loh, Muhammad Izuddin, Navin Twarakavi
  • METHOD FOR ESTIMATING CHLOROPHYLL CONTENT OF A LEAF
    Publication number: 20220155146
    Abstract: A method of estimating chlorophyll content of a leaf including providing a device wherein the device includes a mobile computing device with a digital camera; and a peripheral removably attached to the mobile computing device, the peripheral including a light source aligned with the digital camera, wherein the peripheral provides for a space between the light source and the digital camera; capturing by the digital camera a first image of the light source turned on without the leaf interposed between the digital camera and the light source; retrieving exposure data of the first image; capturing by the digital camera a second image with the leaf interposed between the digital camera and the turned on light source; retrieving exposure data of the second image; and using a processor, estimating the chlorophyll content of the leaf based on the retrieved exposure data of the first and second images.
    Type: Application
    Filed: May 28, 2020
    Publication date: May 19, 2022
    Inventors: Idaly ALI, Matthew LIM, Robin YEO, Zhide LOH, Muhammad IZUDDIN, Navin TWARAKAVI