A miniaturized compound-eye camera for combined position, proximity and tactile sensing

Shimonomura, Kazuhiro; Nakashima, Hiroto; Kagawa, Keiichiro

doi:10.1109/icsens.2014.6985020

Cited by 1 publication

(3 citation statements)

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“…Using infrared light as the illumination light makes it possible to separate the incident light to the camera into the visible light from outside the light conductive plate and the infrared light occurring by contact with the wavelength (λ in Equation (3)). The combined contact and proximity sensor in [25,50,51] uses this method for contact detection. Moreover, this method to detect contact using the light conductive plate has been used for multi-touch detection sensors in the field of human–computer interfaces [52,53].…”

Section: Physical Contact To Light Conversionmentioning

confidence: 99%

“…Generally, the deformability of the sensor surface can be important in robotic grasping [1]. However, this feature of the light conductive plate method is completely different from other methods, of which sensing is based on a geometrical change of the skin, and might be useful in specific environments such as underwater where ambient pressure applied to the sensor can be changed depending on the water depth [51].…”

Section: Physical Contact To Light Conversionmentioning

confidence: 99%

“…In [25,51], a compact and thin multiple camera system, called a “compound-eye camera”, [103,104] was used (see Figure 3a). This consisted of a lens array, a signal separator, and an image sensor.…”

Section: Shape Of Tactile Skin and Sensor Sizementioning

confidence: 99%

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Tactile Image Sensors Employing Camera: A Review

Shimonomura

2019

Sensors

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134

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A tactile image sensor employing a camera is capable of obtaining rich tactile information through image sequences with high spatial resolution. There have been many studies on the tactile image sensors from more than 30 years ago, and, recently, they have been applied in the field of robotics. Tactile image sensors can be classified into three typical categories according to the method of conversion from physical contact to light signals: Light conductive plate-based, marker displacement- based, and reflective membrane-based sensors. Other important elements of the sensor, such as the optical system, image sensor, and post-image analysis algorithm, have been developed. In this work, the literature is surveyed, and an overview of tactile image sensors employing a camera is provided with a focus on the sensing principle, typical design, and variation in the sensor configuration.

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