Cruz, Maria-Luisa
Main Affiliation
Preferred name
Cruz, Maria-Luisa
Official Name
Cruz López, María Luisa
ORCID
0000-0002-3405-1848 
Researcher ID
S-8985-2017
Scopus Author ID
57195069436
24 results
Now showing 1 - 10 of 24
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Item type:Publication, Wide-angle color holographic near eye display with full bandwidth frequency multiplexing(Springer Science and Business Media LLC, 2025-04-30) ;Maksymilian Chlipala; ;Juan Martinez-Carranza ;Moncy IdiculaRafal Kukolowicz<jats:title>Abstract</jats:title> <jats:p>Wide-angle holographic near-eye displays (HNEDs) face challenges in achieving high frame rates, full-color, high-resolution images, and shallow depth of field. Existing full-color methods either rely on time multiplexing or suffer from reduced image resolution due to the applied filtering of the available spatial bandwidth of the light modulator. To address these limitations, we propose a non-pupil HNED system that reconstructs large 3D full-color scenes from a single hologram using RGB LED illumination. The non-pupil architecture allows employing an incoherent LED source, which offers reduced speckle noise and high imaging resolution. This is, to our knowledge, the first wide-angle 3D color holographic display to use a single spatial light modulator (SLM) at full frame rate. Our system is supported by a developed computer generation hologram (CGH) method, which maximizes the SLM’s bandwidth for color coding and improves the speed of RGB CGH calculations. Additionally, we introduce a frequency filter design to simplify color coding and illumination alignment. Through optical reconstructions, we demonstrate that our method preserves 3D depth and color distribution, achieving high-resolution color holographic video without compromising refresh rate or hologram bandwidth.</jats:p>15 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, 2 37 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, In-line cell-phone holographic microscope using plane wave illumination and an iterative algorithm(2023); ;Mariana Martínez-MárquezLuis Torres-Plumarejo<jats:p>We propose an in-line cell-phone holographic microscope in combination with an iterative algorithm to retrieve the complex field of microscopic samples with high resolution at low cost.</jats:p>23 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, 12 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Scopus© Citations 10 1 4 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, 11 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Engagement in a Virtual Reality Game with Gesture Hand Interface. An Empirical Evaluation of User Engagement Scale (UES)(2017) ;Landa-Avila, Irma CeciliaScopus© Citations 7 2 6 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Autonomous generation of extended images of dynamic phase objects in a depth volume sample using a simple focusing criterion and K-means clustering(2017); ; ;Pinhas Girshovitz ;Natan T. ShakedBahram Javidi1 8 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, 14 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Enhancement of grayscale image display with amplitude Fourier holograms, employing a limited bandwidth phase(2022)<jats:p>An alternative method is proposed to generate a modified random phase that is able to concentrate the light around a given direction, produces well-contrasted Fourier amplitude holograms, reduces the quantity and the randomness of the speckle noise in the image, and decreases the amount of data necessary for the phase definition. This modified limited bandwidth random phase uses structured random phase patterns to control the object dispersion. The resulting hologram displays an image with structured speckle noise (SSN), exhibiting similar metrics as the iterative method for hologram generation. A filtering process eliminates the SSN; the speckle contrast in the final image is reduced from 0.66 to 0.07; and the peak SNR increases from 7.21 dB to 12.62 dB. This method enhances the fine details and grayscale tone perception in the final image.</jats:p>Scopus© Citations 4 1 19
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