Immersive Stereoscopic 3D System with Hand Tracking in Depth Sensor

Yu, Sunjin; Song, Eungyeol; Yoon, Chang Yong

doi:10.5391/ijfis.2018.18.2.146

Cited by 4 publications

(2 citation statements)

References 19 publications

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“…Generally, the GPS receiver is a common way to obtain the projectile position, while gyroscopes and accelerometers may be used to measure the projectile attitude. For a projectile with precise fixed-point initiation, a depth sensor [ 11 ] is required. If a classic proportional navigation guidance is considered, a goniometer is needed to track the line of sight (LOS) [ 12 , 13 ].…”

Section: Introductionmentioning

confidence: 99%

Correction Strategy of Mortars with Trajectory Correction Fuze Based on Image Sensor

Fan

2019

Sensors

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For a higher accuracy of projectiles, a novel trajectory correction fuze is proposed. In this design, the sensor and actuator were reduced to achieve a balance between performance and affordability. Following introduction of the fuze concept, the flight model was presented and the crossrange and downrange components of trajectory response under control were investigated. The relationship between the inertial coordinate system and the detector coordinate system was studied so that the imager feedback could be used to derive the actual miss distance. The deployment time of canards and roll angle of the forward fuze were derived and used as the inputs of the control system in this strategy. Example closed-loop simulations were implemented to verify the effectiveness of the strategy. The results illustrate that the accuracy increase is evident and the proposed correction concept is applicable for terminal correction of mortars.

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Section: Introductionmentioning

confidence: 99%

Correction Strategy of Mortars with Trajectory Correction Fuze Based on Image Sensor

Fan

2019

Sensors

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“…But it is difficult to create various shoe last types with a CAD program. To solve this problem, various foot model measurement methods has been proposed [1][2][3][4][5][6][7]. However, current methods using Euclidean distance is difficult to measure curved foot surfaces.…”

Section: Introductionmentioning

confidence: 99%

Foot Measurement Using 3D Scanning Model

Song

Yoon

Son

et al. 2018

IJFIS

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In a three-dimensional (3D) foot scanning, a 3D point cloud is generated and meshed to create a 3D foot model with depth information. In the previous analog process of foot scanning is to draw an outline of the foot and imitate the foot directly. This method has some disadvantage that has a measurement error, difficult to recreate, inaccuracy of reference point and an error by an expert abilities. In this paper, in-plane deformation measurement method is proposed to solve this problem. In-plane deformation measurement method is a novel method to measure foot size from a 3D foot scanning data. The Shrink-Wrap method is used to reconstruct a foot model, that estimate the foot model by wrapping the surface of a foot of the square template mesh model. For comparison, foot length, foot width and height of the instep is measured with the proposed method. In comparison with handcrafted method, the experimental results show that our proposed method has complexity reduction, higher precision and accurate reproducibility.

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