A Highspeed Image Centroid Computation Sensor

• doi: 10.1109/MWSCAS.2012.6292027
• title: A high-speed image centroid computation sensor
• publisher: IEEE
• isbn: 978-1-4673-2525-7
• issn: 1548-3746
• partnum: 12CH39005
• rank: 1105
• access_type: LOCKED
• content_type: Conferences
• abstract: We present a fully-integrated analog CMOS image centroid computation sensor. A 40×40 pixel array is designed and fabricated in a 0.5-μm CMOS process. The proposed centroid computation circuit achieves 7 times improvement in bandwidth compared to similar circuits in the literature. Moreover, the incorporation of a linearized transconductor improves precision in the computed centroid. The sensor is designed to operate over a wide range of photocurrents from 10 pA to 1 μA. Test results of the proposed architecture verify its superior performance.
• article_number: 6292027
• pdf_url: https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6292027
• html_url: https://ieeexplore.ieee.org/document/6292027/
• abstract_url: https://ieeexplore.ieee.org/document/6292027/
• publication_title: 2012 IEEE 55th International Midwest Symposium on Circuits and Systems (MWSCAS)
• conference_location: Boise, ID, USA
• conference_dates: 5-8 Aug. 2012
• publication_number: 6276898
• is_number: 6291930
• publication_year: 2012
• publication_date: 5-8 Aug. 2012
• start_page: 342
• end_page: 345
• citing_paper_count: 2
• citing_patent_count: 0
• download_count: 197
• insert_date: 20120903
• index_terms:
  • ieee_terms:
    • Bandwidth
    • Mirrors
    • Photoconductivity
    • Transistors
    • Computer architecture
    • Capacitance
    • Current measurement
  • dynamic_index_terms:
    • Centroid Calculation
    • Centroid Computation
    • Image Centroid
    • Photocurrent
    • Pixel Array
    • Bandwidth Improvement
    • Photodiode
    • Bias Voltage
    • Image Sensor
    • Camera Sensor
    • Voltage Regulation
    • Voltage Stability
    • High Bandwidth
    • Load Current
    • Output Node
    • Static Test
    • Target Tracking
    • Gate Electrode
    • Output Stage
    • Output Capacitor
    • Differential Amplifier
    • Conventional Architecture
    • Transimpedance Amplifier
    • Dominant Pole
    • Differential Pair
    • Compensation Capacitor
    • Current Mirror
    • Low-power Sensors
    • Large Capacity
    • Large Capacitance
    • Current Range
    • Phase Margin
• isbn_formats:
  • format: Online ISBN, value: 978-1-4673-2525-7, isbnType: New-2005
  • format: Print ISBN, value: 978-1-4673-2526-4, isbnType: New-2005
  • format: Electronic ISBN, value: 978-1-4673-2527-1, isbnType: New-2005
• authors:
  • Author Name: Paul M. Furth
    Affiliation: Klipsch School of Electrical and Computer Engineering, New Mexico State University, Las Cruces, NM, USA
    Author URL: https://ieeexplore.ieee.org/author/37269443200
    ID: 37269443200
    Order: 1
    Author Affiliations:
    • Klipsch School of Electrical and Computer Engineering, New Mexico State University, Las Cruces, NM, USA
  • Author Name: Karthik R. Kothapalli
    Affiliation: Klipsch School of Electrical and Computer Engineering, New Mexico State University, Las Cruces, NM, USA
    Author URL: https://ieeexplore.ieee.org/author/38469692300
    ID: 38469692300
    Order: 2
    Author Affiliations:
    • Klipsch School of Electrical and Computer Engineering, New Mexico State University, Las Cruces, NM, USA
  • Author Name: Punith R. Surkanti
    Affiliation: Klipsch School of Electrical and Computer Engineering, New Mexico State University, Las Cruces, NM, USA
    Author URL: https://ieeexplore.ieee.org/author/38235260300
    ID: 38235260300
    Order: 3
    Author Affiliations:
    • Klipsch School of Electrical and Computer Engineering, New Mexico State University, Las Cruces, NM, USA

Image Sensor

• sensor_type: CMOS
• resolution: 40x40 pixels
• dynamic_range: Not specified
• pixel_size: 20.25 x 20.25 μm
• dark_current: 10 pA to 1 μA

Optical Data

• focal_length: Not specified
• aperture: Not specified
• field_of_view: Not specified
• distortion: Not specified

Performance Metrics

• frame_rate: High bandwidth achieved (bandwidth improvement factor of 7 times)
• power_consumption: 292 µW for all 80 TIAs

Applications & Benefits

• cell_imaging: Used in applications such as target tracking, image stabilization, sun attitude detection, and wavefront correction.
• benefits: Fast, low-power computation of image centroid at the focal plane, eliminating high-speed ADC, temporary data storage, and digital processing.

Supporting Organizations

• supported_by: New Mexico State University

Manuscript Details

• publication_date: 5-8 Aug. 2012

Relevancy Score

• score: 9
• missing_fields:
  • quantum_efficiency
  • readout_speed
  • temporal_noise
  • fixed-pattern_noise
  • microlenses
  • on-chip_colour_filters
  • global_shutter
  • rolling_shutter
  • backside_illumination

Processed JSON Filename

request_f4f72697-e839-495e-93a5-e81437ac0f07-a_highspeed_image_centroid_computation_sensor.json