Phlatcam Designed Phasemask Based Thin Lensless Camera

• doi: 10.1109/TPAMI.2020.2987489
• title: PhlatCam: Designed Phase-Mask Based Thin Lensless Camera
• publisher: IEEE
• isbn:
• issn: 1939-3539
• rank: 3244
• access_type: LOCKED
• content_type: Journals
• abstract: We demonstrate a versatile thin lensless camera with a designed phase-mask placed at sub-2 mm from an imaging CMOS sensor. Using wave optics and phase retrieval methods, we present a general-purpose framework to create phase-masks that achieve desired sharp point-spread-functions (PSFs) for desired camera thicknesses. From a single 2D encoded measurement, we show the reconstruction of high-resolution 2D images, computational refocusing, and 3D imaging. This ability is made possible by our proposed high-performance contour-based PSF. The heuristic contour-based PSF is designed using concepts in signal processing to achieve maximal information transfer to a bit-depth limited sensor. Due to the efficient coding, we can use fast linear methods for high-quality image reconstructions and switch to iterative nonlinear methods for higher fidelity reconstructions and 3D imaging.
• article_number: 9076617
• pdf_url: https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=9076617
• html_url: https://ieeexplore.ieee.org/document/9076617/
• abstract_url: https://ieeexplore.ieee.org/document/9076617/
• publication_title: IEEE Transactions on Pattern Analysis and Machine Intelligence
• conference_location:
• conference_dates:
• publication_number: 34
• is_number: 9108332
• publication_year: 2020
• publication_date: 1 July 2020
• start_page: 1618
• end_page: 1629
• citing_paper_count: 98
• citing_patent_count: 0
• download_count: 6242
• insert_date: 20200423
• index_terms:
  • ieee_terms:
    • Cameras
    • Image reconstruction
    • Two dimensional displays
    • Lenses
    • Three-dimensional displays
  • author_terms:
    • lensless imaging
    • diffractive masks
    • phase retrieval refocusing
    • 3D imagin
• authors:
  • Author Name: Vivek Boominathan
    Affiliation: Department of Electrical and Computer Engineering, Rice University, Houston, USA
    Author URL: https://ieeexplore.ieee.org/author/38469506700
    ID: 38469506700
    Order: 1
    Author Affiliations:
    • Department of Electrical and Computer Engineering, Rice University, Houston, USA
  • Author Name: Jesse K. Adams
    Affiliation: Applied Physics Program, Rice University, Houston, USA
    Author URL: https://ieeexplore.ieee.org/author/37085876250
    ID: 37085876250
    Order: 2
    Author Affiliations:
    • Applied Physics Program, Rice University, Houston, USA
  • Author Name: Jacob T. Robinson
    Affiliation: Department of Electrical and Computer Engineering, Rice University, Houston, USA
    Author URL: https://ieeexplore.ieee.org/author/37554260800
    ID: 37554260800
    Order: 3
    Author Affiliations:
    • Department of Electrical and Computer Engineering, Rice University, Houston, USA
  • Author Name: Ashok Veeraraghavan
    Affiliation: Department of Electrical and Computer Engineering, Rice University, Houston, USA
    Author URL: https://ieeexplore.ieee.org/author/37282938900
    ID: 37282938900
    Order: 4
    Author Affiliations:
    • Department of Electrical and Computer Engineering, Rice University, Houston, USA

Image Sensor

• sensor_type: CMOS
• resolution: not specified
• dynamic_range: not specified
• pixel_size: 4.8 µm per color channel
• dark_current: not specified

Optical Data

• focal_length: not specified
• aperture: not specified
• field_of_view: not specified
• distortion: not specified

Performance Metrics

Applications & Benefits

• cell_imaging: not specified
• benefits: not specified

Supporting Organizations

• supported_by: not specified

Manuscript Details

• publication_date: 1 July 2020

Relevancy Score

• score: 8
• missing_fields:
  • resolution
  • dynamic_range
  • focal_length
  • aperture
  • field_of_view
  • distortion
  • frame_rate
  • signal_to_noise_ratio
  • sensitivity
  • shutter_speed
  • power_consumption
  • noise
  • cell_imaging
  • benefits
  • supported_by

Processed JSON Filename

request_cabb54bf-fa63-4652-bbea-827a2dd80521-phlatcam_designed_phasemask_based_thin_lensless_camera.json