We will introduce an example of measuring the relative displacement of specific body parts by marking a backpack and using a three-dimensional motion analysis system!
The markerless three-dimensional motion analysis system "Anakin System" allows for motion measurement without markers and while wearing everyday clothing, making it possible to measure posture and movements without hassle by bringing the equipment to the site. In the example of an easy-to-carry school backpack, markers are attached to the backpack to measure the relative displacement with specific parts of the body. The smaller the tilt range of the torso forward and backward (in the direction of movement), the easier it is to carry the backpack. Conversely, backpacks that are difficult to carry resulted in a larger forward tilt angle and greater sway in both lateral and front-back postures. 【Features】 ■ Precise motion analysis can be performed without attaching markers to the subjects. ■ No specialized knowledge is required for attaching markers due to the markerless design. ■ Measurements can be taken quickly while wearing everyday clothing. ■ Measurement results can be immediately checked on a computer, allowing for on-the-spot analysis. *For more details, please refer to the PDF materials or feel free to contact us.
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basic information
**Why measure a person's posture and movements?** The ease or difficulty with which a person handles objects manifests unconsciously in their posture and movements. For example, the way one opens an easy-to-open container differs from that of a difficult one. Furthermore, the way one walks varies between comfortable shoes and uncomfortable ones. Additionally, the state of a person's body, whether good or bad, is also reflected in their posture and movements. For instance, changes in walking posture can occur due to aging or illness. Research has shown that individuals at higher risk for dementia tend to have slower walking speeds. Conversely, those who regularly engage in physical training exhibit the benefits in their walking posture. **Why can it be measured without markers?** A depth camera captures data on the entire body shape of a person (surface point cloud data). However, this data alone does not provide information about joint positions. By overlaying this data with a standard human model of a similar height, it is possible to determine joint positions. This is how posture and movements can be understood without markers. *For more details, please refer to the PDF document or feel free to contact us.*
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Applications/Examples of results
【Application Areas】 ■ Medical and Welfare Field (Measurement of walking posture, stride, and walking speed) ■ Sports Field (Motion measurement) ■ Fitness Field (Measurement of walking posture) *For more details, please refer to the PDF document or feel free to contact us.
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Company information
HAL Design Research Institute Co., Ltd. is a company that conducts analysis, design, engineering, and consulting based on various measurements and measurement data. Our main product is the "Markerless 3D Motion Analysis System." We also offer a variety of other measurement services, so please feel free to contact us if you have any requests.