Review of visualization methods for passive polarization imaging

Kruse, Andrew W.; Alenin, Andrey; Tyo, J. Scott

doi:10.1117/1.oe.58.8.082414

Cited by 20 publications

(9 citation statements)

References 59 publications

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“…Figure 4 (B, E, and F) depicts the light’s total intensity S 0 , the degree of linear polarization (DoLP), and the angle of polarization (AoP), respectively. Figure 4H depicts a color fusion image based on adapting the hue-saturation-value polarization-color mapping, with a perceptually uniform colormap “Viridis,” as previously described ( 48 ). In this color representation scheme, the values of AoP, DoLP, and S 0 were mapped to hue, saturation, and value, respectively.…”

Section: Resultsmentioning

confidence: 99%

Mantis shrimp–inspired organic photodetector for simultaneous hyperspectral and polarimetric imaging

et al. 2021

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Combining hyperspectral and polarimetric imaging provides a powerful sensing modality with broad applications from astronomy to biology. Existing methods rely on temporal data acquisition or snapshot imaging of spatially separated detectors. These approaches incur fundamental artifacts that degrade imaging performance. To overcome these limitations, we present a stomatopod-inspired sensor capable of snapshot hyperspectral and polarization sensing in a single pixel. The design consists of stacking polarization-sensitive organic photovoltaics (P-OPVs) and polymer retarders. Multiple spectral and polarization channels are obtained by exploiting the P-OPVs’ anisotropic response and the retarders’ dispersion. We show that the design can sense 15 spectral channels over a 350-nanometer bandwidth. A detector is also experimentally demonstrated, which simultaneously registers four spectral channels and three polarization channels. The sensor showcases the myriad degrees of freedom offered by organic semiconductors that are not available in inorganics and heralds a fundamentally unexplored route for simultaneous spectral and polarimetric imaging.

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Section: Resultsmentioning

confidence: 99%

Mantis shrimp–inspired organic photodetector for simultaneous hyperspectral and polarimetric imaging

et al. 2021

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“…DoLP normalized parameter for the scenario was obtained using Equation (11), as shown in Figure 16 e. In order to increase the visibility of certain resources in the scene, a false color, also called pseudocolor [ 41 , 47 , 48 ], was applied to these images, resulting in Figure 16 e, similar to what was done in the works of [ 49 , 50 ] where the bias percentage was shown as a different color. Pixels with black color represent a low degree of linear polarization and with those colors closer to red represent a high degree of linear polarization for two images, according to the color scale on the right side of Figure 16 e. The linear polarization filter located on the right side of Figure 16 e also has a high DoLP value due to the intrinsic properties of the filters.…”

Section: Resultsmentioning

confidence: 99%

Angular Light, Polarization and Stokes Parameters Information in a Hybrid Image Sensor with Division of Focal Plane

Carvalho

Cruz

Marques

et al. 2020

Sensors

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Targeting 3D image reconstruction and depth sensing, a desirable feature for complementary metal oxide semiconductor (CMOS) image sensors is the ability to detect local light incident angle and the light polarization. In the last years, advances in the CMOS technologies have enabled dedicated circuits to determine these parameters in an image sensor. However, due to the great number of pixels required in a cluster to enable such functionality, implementing such features in regular CMOS imagers is still not viable. The current state-of-the-art solutions require eight pixels in a cluster to detect local light intensity, incident angle and polarization. The technique to detect local incident angle is widely exploited in the literature, and the authors have shown in previous works that it is possible to perform the job with a cluster of only four pixels. In this work, the authors explore three novelties: a mean to determine three of four Stokes parameters, the new paradigm in polarization cluster-pixel design, and the extended ability to detect both the local light angle and intensity. The features of the proposed pixel cluster are demonstrated through simulation program with integrated circuit emphasis (SPICE) of the regular Quadrature Pixel Cluster and Polarization Pixel Cluster models, the results of which are compliant with experimental results presented in the literature.

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“…The result implies that the students perceived the teacher's performed excellently amidst pandemic in terms of inquiry based method. 4, "Reconstruct more meaningful knowledge in her teaching TLE" (M=4.00, SD=0.58) with remarks of often. Statement no.…”

Section: Teaching Strategies In Online Distance Learning (Odl)mentioning

confidence: 99%

“…The table shows the indicative statement, weighted mean, standard deviation and remarks. 4, "Resolve group conflicts with (M=3.98, SD=0.68). And lastly statement no.…”

Section: Level Of Critical Thinking Skillsmentioning

confidence: 99%

Teaching Strategies in Online Distance Learning on Critical Thinking Skills and Technical Skills of the Students

Trilles¹

2021

EPRA

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This study conducted to determine the effect of teaching strategies in online distance learning on the critical thinking skills and technical skills of the students of Liliw National High School, Liliw Laguna, specifically sought to answer the following questions. What is the level of teaching strategies in Online Distance Learning in terms of Lecture-Discussion Method/ Virtual Class; Inquiry-based Method; Visualization; Elaboration? What is the level of critical thinking skills of the student in terms of; Alertness; Flexibility; Decision making? What is the level of technical skills of the students in TLE in terms of; Mensuration and Calculation; Use of tool and equipment; Occupational health and safety? Are the teaching strategies in online distance learning have significant effect on the critical thinking skills of the Grade 7 and 8 TLE online students? Are the teaching strategies in online distance learning have significant effect on the technical skills of the students in Liliw National High School, Liliw, Laguna? The researcher utilized a descriptive design and used the teaching strategies in technology and livelihood education to its effects on the critical thinking skills and technical skills of the students. Respondents are selected forty-five (45) online distance learning students from grade 7 and 8 levels in Liliw, Laguna. Purposive sampling technique was used to get the sample respondents for this study. The scheme was used to ensure that the student-respondents came from Liliw, Laguna. The main source of data of the study is the survey questionnaire prepared by the researcher and the statistical use of simple descriptive statistics such as mean and standard deviation to determine the mean level of the teaching strategies used by the teachers to measure the students’ critical thinking and technical skills..

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Review of visualization methods for passive polarization imaging

Cited by 20 publications

References 59 publications

Mantis shrimp–inspired organic photodetector for simultaneous hyperspectral and polarimetric imaging

Mantis shrimp–inspired organic photodetector for simultaneous hyperspectral and polarimetric imaging

Angular Light, Polarization and Stokes Parameters Information in a Hybrid Image Sensor with Division of Focal Plane

Teaching Strategies in Online Distance Learning on Critical Thinking Skills and Technical Skills of the Students

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