Results 31 to 40 of about 736,173 (214)

Impact of Thermal Control Measures on the Imaging Quality of an Aerial Optoelectronic Sensor

open access: yesSensors, 2019
The image resolution is the most important performance parameter for an aerial optoelectronic sensor. Existing thermal control methods cannot eliminate the sensor’s temperature gradient, making the image resolution difficult to further improve ...
Fuhe Liu   +5 more
doaj   +1 more source

In-Sensor Visual Perception and Inference

open access: yesIntelligent Computing, 2023
Conventional machine vision systems have separate perception, memory, and processing architectures, which may exacerbate the increasing need for ultrahigh image processing rates and ultralow power consumption.
Yanan Liu   +4 more
doaj   +1 more source

Photon Counting and Direct ToF Camera Prototype Based on CMOS SPADs [PDF]

open access: yes, 2017
This paper presents a camera prototype for 2D/3D image capture in low illumination conditions based on single-photon avalanche-diode (SPAD) image sensor for direct time-offlight (d-ToF).
Carmona Galán, Ricardo   +2 more
core   +1 more source

Ultra-High-Speed Image Signal Accumulation Sensor

open access: yesSensors, 2010
Averaging of accumulated data is a standard technique applied to processing data with low signal-to-noise ratios (SNR), such as image signals captured in ultra-high-speed imaging.
Takeharu Goji Etoh   +6 more
doaj   +1 more source

Incremental refinement of image salient-point detection [PDF]

open access: yes, 2008
Low-level image analysis systems typically detect "points of interest", i.e., areas of natural images that contain corners or edges. Most of the robust and computationally efficient detectors proposed for this task use the autocorrelation matrix of the ...
Andreopoulos, Y, Patras, I
core   +2 more sources

Optimization Design Method of Optical Remote Sensor Based on Imaging Chain Simulation

open access: yesMATEC Web of Conferences, 2017
Space optical remote sensor of high spatial resolution need achieve both light and small design and high imaging quality. An optimization method of optical remote sensor based on imaging chain simulation is presented.
Xing Kun   +4 more
doaj   +1 more source

Super Field-of-View Lensless Camera by Coded Image Sensors

open access: yesSensors, 2019
A lensless camera is an ultra-thin computational-imaging system. Existing lensless cameras are based on the axial arrangement of an image sensor and a coding mask, and therefore, the back side of the image sensor cannot be captured.
Tomoya Nakamura   +3 more
doaj   +1 more source

CMOS Depth Image Sensor with Offset Pixel Aperture Using a Back-Side Illumination Structure for Improving Disparity

open access: yesSensors, 2020
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 ...
Jimin Lee   +7 more
doaj   +1 more source

An Analysis of Optical Contributions to a Photo-Sensor's Ballistic Fingerprints

open access: yes, 2018
Lens aberrations have previously been used to determine the provenance of an image. However, this is not necessarily unique to an image sensor, as lens systems are often interchanged. Photo-response non-uniformity noise was proposed in 2005 by Luk\'a\v{s}
Falkner, Nickolas   +2 more
core   +1 more source

Development of a real-time full-field range imaging system [PDF]

open access: yes, 2009
This article describes the development of a full-field range imaging system employing a high frequency amplitude modulated light source and image sensor.
A.A. Dorrington   +8 more
core   +1 more source

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