研究目的
To measure plant growth using 4D-CT for botanical analysis and realistic animation design.
研究成果
The study successfully demonstrated 4D-CT measurement for plant growth, enabling detailed observation of internal structures and realistic animation. It is a pioneering work in botany and graphics, with potential for broader applications in analyzing different plant growth processes.
研究不足
The method may have issues with occlusion and requires manual correction for segmentation errors. It is limited to plants that can be grown inside a CT scanner and may not handle very fast or complex growth patterns without adjustments.
1：Experimental Design and Method Selection:
The study uses X-ray CT scanning with fixed time intervals to capture 4D volumetric images of growing plants, specifically bean sprouts, due to their fast growth rates. A semi-automatic segmentation algorithm is developed to process the images.
2：Sample Selection and Data Sources:
16 bean sprouts were grown inside an industrial CT scanner. The samples were chosen for their rapid growth.
3：List of Experimental Equipment and Materials:
A custom-designed stage created with a 3D printer, an industrial CT scanner (NAOMi-CT), and bean sprouts.
4：Experimental Procedures and Operational Workflow:
Bean sprouts were scanned every hour for 12 days, with water changed every 2-3 days. Segmentation started with manual labeling at time zero and automated propagation to subsequent frames, with manual corrections as needed.
5：Data Analysis Methods:
Segmentation involved binarization with thresholds for CT value and height, opening operations for noise reduction, and nearest-neighbor search for label propagation.
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