Publications related to Light meter

Computationally efficient background subtraction in the light field domain

Martin Vetterli, Mahdad Hosseini Kamal, Alireza Ghasemi

Since the invention of first camera, people have always thought of new ways to capture moments. With the advent of digital photography, not only imaging systems have progressed, but also technology provides new user experience. The recently introduced ligh ...

International Society for Optics and Photonics2014

Instrumental correction of the uneven PMT aging effect on the calibration constant of a water vapor Raman lidar

Bertrand Calpini, Valentin Simeonov, Salomon Fastig

The water vapor profile derived from Raman lidar measurements is obtained by taking the ratio of water vapor and nitrogen Raman-shifted signals. The proportionality factor that converts the signal ratio to water vapor/air mixing ratio is referred to as lid ...

Spie-Int Soc Optical Engineering2014

Hemispherical Multiple Camera System for High Resolution Omni-Directional Light Field Imaging

Alexandre Schmid, Yusuf Leblebici, Hossein Afshari, Abdulkadir Akin, Kerem Seyid, Ömer Cogal

Inspiration from light field imaging concepts has led to the construction of multi-aperture imaging systems. Using multiple cameras as individual apertures is a topic of high relevance in the light field imaging domain. The need for wide field-of-view (FOV ...

Institute of Electrical and Electronics Engineers2013

Simulation-based evaluation of non-visual responses to daylight: proof-of-concept study of healthcare re-design

Marilyne Andersen, María Lovísa Ámundadóttir, Steven W. Lockley

The discovery of a novel non-rod, non-cone photoreceptor in the human eye that mediates a number of effects on the brain has sparked a growing interest in incorporating these non-visual effects of light into the design process of buildings. Appropriately–t ...

2013

Light ﬁeld panorama by a plenoptic camera

Martin Vetterli, Paolo Prandoni, Loïc Arnaud Baboulaz, Zhou Xue

Consumer-grade plenoptic camera Lytro draws a lot of interest from both academic and industrial world. However its low resolution in both spatial and angular domain prevents it from being used for ﬁne and detailed light ﬁeld acquisition. This paper propose ...

SPIE2013

Phase anomalies in Talbot light carpets of selfimages

Hans Peter Herzig, Toralf Scharf, Myun Sik Kim

An interesting feature of light fields is a phase anomaly, which occurs on the optical axis when light is converging as in a focal spot. Since in Talbot images the light is periodically confined in both transverse and axial directions, it remains an open q ...

Optical Society of America2013

Light Field Compressive Sensing

Pierre Vandergheynst, Mohammad Golbabaee, Mahdad Hosseini Kamal

This paper presents a novel approach to capture light field in camera arrays based on the compressive sensing framework. Light fields are captured by a linear array of cameras with overlapping field of view. In this work, we design a redundant dictionary t ...

2012

Light induced fluidic waveguide coupling

Christophe Moser, Eric Tremblay, Volker Günter Zagolla

We report on the development of an opto-fluidic waveguide coupling mechanism for planar solar concentration. This mechanism is self-adaptive and light-responsive to efficiently maintain waveguide coupling and concentration independent of incoming light's d ...

Optical Soc Amer2012

Light Field Tensor Recovery

Pierre Vandergheynst, Mahdad Hosseini Kamal

This paper presents a novel approach to capture light field in camera arrays based on the tensor recovery framework. Light fields are acquired by a linear array of cameras with overlapping field of view. We represent the light fields in shape of a tensor t ...

2012

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Light meter

Computationally efficient background subtraction in the light field domain

Instrumental correction of the uneven PMT aging effect on the calibration constant of a water vapor Raman lidar

Hemispherical Multiple Camera System for High Resolution Omni-Directional Light Field Imaging

Simulation-based evaluation of non-visual responses to daylight: proof-of-concept study of healthcare re-design

Light ﬁeld panorama by a plenoptic camera

Phase anomalies in Talbot light carpets of selfimages

Bits from Photons

Light Field Compressive Sensing

Light induced fluidic waveguide coupling

Light Field Tensor Recovery

Graph Chatbot

Chat with Graph Search

Simulation-based evaluation of non-visual responses to daylight: proof-of-concept study of healthcare re-design

Computationally efficient background subtraction in the light field domain

Hemispherical Multiple Camera System for High Resolution Omni-Directional Light Field Imaging

Instrumental correction of the uneven PMT aging effect on the calibration constant of a water vapor Raman lidar

Light ﬁeld panorama by a plenoptic camera

Phase anomalies in Talbot light carpets of selfimages

Bits from Photons

Light Field Compressive Sensing

Light induced fluidic waveguide coupling

Light Field Tensor Recovery