17 papers · ranked by Valyu relevance
Jimin Lee, Sang-Hwan Kim, Hyeunwoo Kwen, Juneyoung Jang + 4 more
'Seunghyuk Chang' 'JongHo Park' 'Sang-Jin Lee' 'Jang-Kyoo Shin'] This paper presents a CMOS depth image sensor with offset pixel aperture (OPA) using a back-side illumination structure to improve disparity. The OPA method is an efficient way to obtain depth information with a single image sensor without additional…
Anh Ngoc Pham, Thoriq Ibrahim, Keita Yasutomi, Shoji Kawahito + 6 more
'Hajime Nagahara' 'Keiichiro Kagawa' 'Robert Henderson' 'Johannes Solhusvik' 'R. Michael Guidash' 'Yusuke Oike'] In this paper, we present a prototype pseudo-direct time-of-flight (ToF) CMOS image sensor, achieving high distance accuracy, precision, and robustness to multipath interference. An indirect ToF (iToF)-based…
Jimin Lee, Byoung-Soo Choi, Sang-Hwan Kim, Jewon Lee + 5 more
'Seunghyuk Chang' 'JongHo Park' 'Sang-Jin Lee' 'Jang-Kyoo Shin'] This paper presents the effects of offset pixel aperture width on the performance of monochrome (MONO) CMOS image sensors (CISs) for a three-dimensional image sensor. Using a technique to integrate the offset pixel aperture (OPA) inside each pixel, the…
Byoung-Soo Choi, Jimin Lee, Sang-Hwan Kim, Seunghyuk Chang + 3 more
'JongHo Park' 'Sang-Jin Lee' 'Jang-Kyoo Shin'] A complementary metal oxide semiconductor (CMOS) image sensor (CIS), using offset pixel aperture (OPA) technique, was designed and fabricated using the 0.11-µm CIS process. In conventional cameras, an aperture is located on the camera lens. However, in a CIS camera using…
István Gyöngy, Ahmet T. Erdogan, Neale A. W. Dutton, Germán Mora Martín + 4 more
'Germán Mora Martín' 'Alistair Gorman' 'Hanning Mai' 'F. Rocca' 'Robert Henderson'] 3D flash LIDAR is an alternative to the traditional scanning LIDAR systems, promising precise depth imaging in a compact form factor, and free of moving parts, for applications such as self-driving cars, robotics and augmented reality…
Hyuntae Jeong, Pushkaraj Joshi, Yinshi Hu, Jiwon Kim + 3 more
Label-free tracking of adherent cell migration could enable important insights into biological processes such as tissue repair, inflammatory response, or cancer progression. Nevertheless, visualizing unlabeled animal cells using optical microscopy remains challenging due to low contrast as well as frequent changes in…
Michael Zollhöfer
Over the past ten years we have seen a democratization of range sensing technology. While previously range sensors have been highly expensive and only accessible to a few domain experts, such sensors are nowadays ubiquitous and can even be found in the latest generation of mobile devices, e.g., current smartphones.…
Zhexuan Cao, Ning Li, Laiyu Zhu, Jiamin Wu + 2 more
Depth sensing plays a crucial role in various applications, including robotics, augmented reality, and autonomous driving. Monocular passive depth sensing techniques have come into their own for the cost-effectiveness and compact design, offering an alternative to the expensive and bulky active depth sensors and stereo…
Azmi Haider, Hagit Hel-Or, Sylvain Girard
Although camera and sensor noise are often disregarded, assumed negligible or dealt with in the context of denoising, in this paper we show that significant information can actually be deduced from camera noise about the captured scene and the objects within it. Specifically, we deal with depth cameras and their noise…
Hamed Heravi, Masumeh Delgarmi, Ali Rahimpour Jounghani, Abdollah shahrezaie + 2 more
In biomedical imaging studies, numerous methods have been used to capture human data, mostly by using magnetic resonance imaging (MRI) and computed tomography (CT). However, due to being inexpensive and accessibility of Microsoft Kinect, its usage has been significantly increased in recent years. In this study, we…
Germán Mora-Martín, Alex Turpin, Alice Ruget, Abderrahim Halimi + 3 more
'Robert Henderson' 'Jonathan Leach' 'István Gyöngy'] 3D time-of-flight (ToF) imaging is used in a variety of applications such as augmented reality (AR), computer interfaces, robotics and autonomous systems. Single-photon avalanche diodes (SPADs) are one of the enabling technologies providing accurate depth data even…
Manan Asif
—Recently, coded masks have been used to demonstrate a thin form-factor lensless camera, FlatCam, in which a mask is placed immediately on top of a bare image sensor. In this paper, we present an imaging model and algorithm to jointly estimate depth and intensity information in the scene from a single or multiple…
Ekaterina Ponizovskaya Devine, Wayesh Qarony, Ahasan Ahamed, Ahmed S. Mayet + 6 more
'Ahmed S. Mayet' 'Soroush Ghandiparsi' 'Cesar Bartolo-Perez' 'Aly F. Elrefaie' 'Toshishige Yamada' 'Shih-Yuan Wang' 'M. Saif Islam'] Silicon photodiode-based CMOS sensors with backside-illumination for 300–1000 nm wavelength range were studied. We showed that a single hole in the photodiode increases the optical…
Rozhan Rabbani, Hossein Najafiaghdam, Micah Roschelle, Efthymios Philip Papageorgiou + 5 more
We present a mm-sized, ultrasonically powered lensless CMOS image sensor as a progress towards wireless fluorescence microscopy. Access to biological information within the tissue has the potential to provide insights guiding diagnosis and treatment across numerous medical conditions including cancer therapy. This…
Antony C. S. Chan, Jinho Kim, An Pan, Han Xu + 4 more
We report the implementation of a parallel microscopy system (96 Eyes) that is capable of simultaneous imaging of all wells on a 96-well plate. The optical system consists of 96 microscopy units, where each unit is made out of a four element objective, made through a molded injection process, and a low cost CMOS camera…
Christopher E. Arcadia, Kangping Hu, Slava Epstein, Meni Wanunu + 2 more
Microorganisms account for most of the biodiversity on earth. Yet while there are increasingly powerful tools for studying microbial genetic diversity, there are fewer tools for studying microorganisms in their natural environments. In this paper, we present recent advances in CMOS electrochemical imaging arrays for…
Authors not listed
The high lateral resolution and sensitivity of the NanoSIMS 50 and 50L series of dynamic SIMS instruments has enabled numerous scientific advances over the past 25 years. Here we report on the NanoSIMS-HR, the first major upgrade to the series, and analytical tests in a suite of sample types, including an aluminum…