HI-RIS Image Capturer Type Junior


For a phenotypic functional analysis in middle seedling, we developed an automatic digital image capture system called "HI-RIS type Junior". HI-RIS type Junior made it possible to acquire growth images of each individual rice seedling automatically and periodically while multiple ones were grown in a limited space.

    Fig.1 HI-RIS type Junior

[Feature of HI-RIS type Junior]

  1. Number of objects: 24 individual rice seedlings on flowerpots.
  2. Period of observation: Between 14-day and 50-day after seeding. (Rice seedlings grow from 20cm high to 75cm high in this period.)
  3. Minimum imaging intervals: At 60 minutes intervals.
  4. Size of the equipment: Width 2500 mm depth 2100 mm height 1800mm.
  5. Supplementary mechanism:
    1. Revolving stage: A stage, which was set a pot, makes one revolution in front of a camera, and we can acquire images of objects at any angles.
    2. Automatic water supply: Water of quantity, which we have ordered, is supplied at any intervals automatically.
    3. Protective cover: Each individual rice seedling is fitted with a clear plastic tube to avoid neighboring leaves interfere with capturing images.
    4. Multiple cameras: HI-RIS type Junior has two types of cameras for different purposes. Camera 1 acquires images of full-length figures to provide measurements of rice plants growing. On the other hand, Camera 2 acquires magnified images of some partial figure to observe it in detail. Camera 2 can go up and down, and its angle can change between 45 degrees up and down (fig.2).

Fig.2 Two types of cameras

[Image viewer]

We show the images that were captured by Camera 1 (left) and Camera 2 (right) in figure 3. This image viewer we developed can visualize sequential image data in a short movie and compare two image data that were acquired from different viewpoints.

Fig.3 Image viewer for HI-RIS type Junior


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