A remote-brained full-body humanoid with multisensor imaging system of binocular viewer, ears, wrist force and tactile sensor suit

2002 ◽  
Author(s):  
M. Inaba ◽  
T. Ninomiya ◽  
Y. Hoshino ◽  
K. Nagasaka ◽  
S. Kagami ◽  
...  
Keyword(s):  
Imaging System ◽  
Tactile Sensor ◽  
Full Body

scholarly journals 3D Photoacoustic Tomography System Based on Full-View Illumination and Ultrasound Detection

2019 ◽  
Vol 9 (9) ◽  
pp. 1904 ◽  
Author(s):  
Mingjian Sun ◽  
Depeng Hu ◽  
Wenxue Zhou ◽  
Yang Liu ◽  
Yawei Qu ◽  
...  
Keyword(s):  
Imaging System ◽  
Photoacoustic Imaging ◽  
Performance Testing ◽  
Vertical Motion ◽  
Laser Illumination ◽  
Full View ◽  
3D Tomography ◽  
Tomography System ◽  
And Performance ◽  
Full Body

A 3D photoacoustic computed tomography (3D-PACT) system based on full-view illumination and ultrasound detection was developed and applied to 3D photoacoustic imaging of several phantoms. The system utilized an optics cage design to achieve full-view uniform laser illumination and completed 3D scanning with the rotation of a dual-element transducer (5 MHz) and the vertical motion of imaging target, which obtains the best solution in the mutual restriction relation between cost and performance. The 3D-PACT system exhibits a spatial resolution on the order of 300 μm, and the imaging area can be up to 52 mm in diameter. The transducers used in the system provides tomography imaging with large fields of view. In addition, the coplanar uniform illumination and acoustic detection configuration based on a quartz bowl greatly enhances the efficiency of laser illumination and signal detection, making it available for use on samples with irregular surfaces. Performance testing and 3D photoacoustic experiments on various phantoms verify that the system can perform 3D photoacoustic imaging on targets with complex surfaces or large sizes. In future, efforts will be made to achieve full-body 3D tomography of small animals and a multimodal 3D imaging system.

scholarly journals A Full-Body Tactile Sensor Suit Using Electrically Conductive Fabric.

1998 ◽  
Vol 16 (1) ◽  
pp. 80-86 ◽  
Author(s):  
Masayuki Inaba ◽  
Yukiko Hoshino ◽  
Hirochika Inoue
Keyword(s):  
Tactile Sensor ◽  
Electrically Conductive ◽  
Conductive Fabric ◽  
Full Body

Multidimensional Tactile Sensor with a Thin Compound Eye-Inspired Imaging System

Soft Robotics ◽  
2021 ◽  
Author(s):  
Yazhan Zhang ◽  
Xia Chen ◽  
Michael Yu Wang ◽  
Hongyu Yu
Keyword(s):  
Compound Eye ◽  
Imaging System ◽  
Tactile Sensor

Estimation of In Vivo ACL Force Changes in Response to Increased Weightbearing

2011 ◽  
Vol 133 (5) ◽  
Author(s):  
Ali Hosseini ◽  
Thomas J. Gill ◽  
Samuel K. Van de Velde ◽  
Guoan Li
Keyword(s):  
Imaging System ◽  
Cruciate Ligament ◽  
Valuable Insight ◽  
Loading Conditions ◽  
Noninvasive Technique ◽  
Biomechanical Behavior ◽  
In Vivo Loading ◽  
Full Body

Accurate knowledge of in vivo anterior cruciate ligament (ACL) forces is instrumental for understanding normal ACL function and improving surgical ACL reconstruction techniques. The objective of this study was to estimate the change in ACL forces under in vivo loading conditions using a noninvasive technique. A combination of magnetic resonance and dual fluoroscopic imaging system was used to determine ACL in vivo elongation during controlled weightbearing at discrete flexion angles, and a robotic testing system was utilized to determine the ACL force-elongation data in vitro. The in vivo ACL elongation data were mapped to the in vitro ACL force-elongation curve to estimate the change in in vivo ACL forces in response to full body weightbearing using a weighted mean statistical method. The data demonstrated that by assuming that there was no tension in the ACL under zero weightbearing, the changes in in vivo ACL force caused by full body weightbearing were 131.4±16.8 N at 15 deg, 106.7±11.2 N at 30 deg, and 34.6±4.5 N at 45 deg of flexion. However, when the assumed tension in the ACL under zero weightbearing was over 20 N, the change in the estimated ACL force in response to the full body weightbearing approached an asymptotic value. With an assumed ACL tension of 40 N under zero weightbearing, the full body weight caused an ACL force increase in 202.7±27.6 N at 15 deg, 184.9±22.5 N at 30 deg, and 98.6±11.7 N at 45 deg of flexion. The in vivo ACL forces were dependent on the flexion angle with higher force changes at low flexion angles. Under full body weightbearing, the ACL may experience less than 250 N. These data may provide a valuable insight into the biomechanical behavior of the ACL under in vivo loading conditions.

Sign in / Sign up

Export Citation Format

Share Document