A Global-Shutter CMOS Image Sensor With Readout Speed of 1-Tpixel/s Burst and 780-Mpixel/s Continuous

Tochigi, Yasuhisa; Hanzawa, Katsurou; Kato, Y.; Kuroda, Rihito; Mutoh, Hideki; Hirose, Ryuta; Tominaga, Hideki; Takubo, Kenji; Kondo, Yasushi; Sugawa, Shigetoshi

doi:10.1109/jssc.2012.2219685

Cited by 92 publications

(58 citation statements)

References 9 publications

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“…This camera uses a dedicated sensor called FTCMOS which is a special type of CMOS sensor with on-board solid-state memory storage. More details about this camera can be found in [26,27].…”

Section: Ultra-high Speed Imagingmentioning

confidence: 99%

Exploration of Saint-Venant’s Principle in Inertial High Strain Rate Testing of Materials

Zhu

Pierron

2015

Exp Mech

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Current high strain rate testing procedures of materials are limited by poor instrumentation which leads to the requirement for stringent assumptions to enable data processing and constitutive model identification. This is the case for instance for the well known Split Hopkinson Pressure Bar (SHPB) apparatus which relies on strain gauge measurements away from the deforming sample. This paper is a step forward in the exploration of novel tests based on time and space resolved kinematic measurements obtained through ultra-high speed imaging. The underpinning idea is to use acceleration fields obtained from temporal differentiation of the full-field deformation maps measured through techniques like Digital Image Correlation (DIC) or the grid method. This information is then used for inverse identification with the Virtual fields Method. The feasibility of this new methodology has been verified in the recent past on a few examples. The present paper is a new contribution towards the advancement of this idea. Here, inertial impact tests are considered. They consist of firing a small steel ball impactor at rectangular free standing quasi-isotropic composite specimens. One of the main contributions of the work is to investigate the issue of through-thickness heterogeneity of the kinematic fields through both numerical simulations (3D finite element model) and actual tests. The results show that the parasitic effects arising from non-uniform through-the-thickness loading can successfully be mitigated by the use of longer specimens, making use of Saint-Venant's principle in dynamics.

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“…This camera uses a dedicated sensor called FTCMOS which is a special type of CMOS sensor with on-board solid-state memory storage. More details about this camera can be found in [26,27].…”

Section: Ultra-high Speed Imagingmentioning

confidence: 99%

Exploration of Saint-Venant’s Principle in Inertial High Strain Rate Testing of Materials

Zhu

Pierron

2015

Exp Mech

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“…The advent of full-field optical metrology, such as digital image correlation [35] or the grid method [10], combined with the new developments in ultra-high speed imaging [2,29,36] provides a unique opportunity to revisit high strain-rate testing techniques. In particular, full-field of accelerations can be obtained which provides a powerful image-embedded load cell if the material density is known, which is usually the case.…”

Section: Introductionmentioning

confidence: 99%

A Novel Image-based Ultrasonic Test to Map Material Mechanical Properties at High Strain-rates

Seghir

Pierron

2017

Exp Mech

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An innovative identification strategy based on high power ultrasonic loading together with both infrared thermography and ultra-high speed imaging is presented in this article. It was shown to be able to characterize the viscoelastic behaviour of a polymer specimen (PMMA) from a single sample over a range of temperatures and strainrates. The paper focuses on moderate strain-rates, i.e. from 10 to 200 s −1 , and temperatures ranging from room to the material glass transition temperature, i.e. 110 • C. The main originality lies in the fact that contrary to conventional Dynamic Mechanical Thermal Analysis (DMTA), no frequency or temperature sweep is required since the experiment is designed to simultaneously produce both a heterogeneous strain-rate state and a heterogeneous temperature state allowing a local and multi-parametric identification. This article is seminal in nature and the test presented here has good potential to tackle a range of other types of high strain-rate testing situations.

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“…, a CMOS and CCD hybrid image sensor with two dimensional CCD memories near photodiode in each pixel 10)~11) , a CMOS image sensor with multiple onchip analog memories per pixel separately placed from the pixel region developed by the authors' group 12) , and a multi-aperture CMOS image sensor with temporally compressive sampling 13) . The UHS CMOS image sensor developed by the authors' group has simultaneously achieved 10 Mfps, 10 Kpixels, 128 frames 12) , and the high speed video camera employing the sensor chip has been utilized to capture what had not be seen before 3)~5), 8) .…”

Section: Introductionmentioning

confidence: 99%

“…The UHS CMOS image sensor developed by the authors' group has simultaneously achieved 10 Mfps, 10 Kpixels, 128 frames 12) , and the high speed video camera employing the sensor chip has been utilized to capture what had not be seen before 3)~5), 8) . In UHS imaging, sensitivity and power consumption are generally the major stumbling blocks to be overcome in order to further improve the sensor performances.…”

Section: Introductionmentioning

confidence: 99%

“…In this paper, a newly developed UHS CMOS image sensor based on the previously established architecture is demonstrated that achieves an eight times higher sensitivity and a 50 % decrease of power consumption simultaneously. the pixel region to the analog memory region 12) . In the previously developed chip, one of the four metal layers was designated to form the 32 pixel output lines with a same pitch above the PD.…”

Section: Introductionmentioning

confidence: 99%

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[Paper] A 20Mfps Global Shutter CMOS Image Sensor with Improved Light Sensitivity and Power Consumption Performances

Kuroda

Tochigi

Miyauchi

et al. 2016

MTA

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the signal readout circuitry with decreased supply voltage of 3.3 V, the fill factor, the conversion gain and the readout gain were all improved from the previous chip and an eight times higher light sensitivity and a 50 % decrease of power consumption were achieved simultaneously. The impact of the performance improvements was confirmed to be significant based on the captured movie video of UHS phenomena.

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A Global-Shutter CMOS Image Sensor With Readout Speed of 1-Tpixel/s Burst and 780-Mpixel/s Continuous

Cited by 92 publications

References 9 publications

Exploration of Saint-Venant’s Principle in Inertial High Strain Rate Testing of Materials

Exploration of Saint-Venant’s Principle in Inertial High Strain Rate Testing of Materials

A Novel Image-based Ultrasonic Test to Map Material Mechanical Properties at High Strain-rates

[Paper] A 20Mfps Global Shutter CMOS Image Sensor with Improved Light Sensitivity and Power Consumption Performances

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