Dynamic Resolution Eventbased Temporal Contrast Vision Sensor

• doi: 10.1109/ISCAS.2016.7527517
• title: Dynamic resolution event-based temporal contrast vision sensor
• publisher: IEEE
• isbn: 978-1-4799-5342-4
• issn: 2379-447X
• rank: 2334
• access_type: LOCKED
• content_type: Conferences
• abstract: This paper presents a dynamic resolution asynchronous event-based dynamic vision sensor(DVS) that benifits from low power consumption. Pixel core in this kind of sensor can be divided into two parts: photoreceptor and motion detection circuit. In this design, power is kept low by turning off some pixels' motion detection circuits when there is no event nearby. The full resolution of this sensor is 64 × 64. There are two working states of the sensor: 1.coarse motion detection and 2.fine detection in the region of interest (ROI). In the first state, each 4×4 pixels are grouped into a pixel block. Their photoreceptors are connect together, sharing only one motion detection circuit to monitor motion in the block region. When a block detects event, the other fifteen pixels in the block are powered up and work individually. Higher resolution image of the ROI is sent out via address event representation (AER) protocol. When no more event is detected in this region, the block goes back to state 1. Simulation result shows that the average power can be reduced to 1/9 of the conventional fixed-resolution DVS. This sensor is fabricated using AMS 0.35μm 4M2P CMOS process. Each pixel contains 3 capacitors and 60 transistors, occupying a silicon area of 34×34μm2, with a fill factor of 15.6%.
• article_number: 7527517
• pdf_url: https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=7527517
• html_url: https://ieeexplore.ieee.org/document/7527517/
• abstract_url: https://ieeexplore.ieee.org/document/7527517/
• publication_title: 2016 IEEE International Symposium on Circuits and Systems (ISCAS)
• conference_location: Montreal, QC, Canada
• conference_dates: 22-25 May 2016
• publication_number: 7515073
• is_number: 7527154
• publication_year: 2016
• publication_date: 22-25 May 2016
• start_page: 1422
• end_page: 1425
• citing_paper_count: 6
• citing_patent_count: 1
• download_count: 627
• insert_date: 20160811
• index_terms:
  • ieee_terms:
    • Motion detection
    • Voltage control
    • Monitoring
    • Switches
    • Power demand
    • Modulation
    • Photoreceptors
  • dynamic_index_terms:
    • Vision Sensors
    • Dynamic Sensor
    • Temporal Contrast
    • Power Consumption
    • Motion Detection
    • Motion Sensors
    • Detection Of Regions
    • Kinds Of Sensors
    • Pixel Block
    • Dynamic Vision Sensor
    • Event Camera
    • Volume Change
    • Changes In Intensity
    • Light Intensity
    • Photodiode
    • System Architecture
    • Image Sensor
    • Camera Sensor
    • Object Size
    • Light Changes
    • Location Decisions
    • Top Left Corner
    • Power Management
    • Speed Of The Object
    • Pixel Array
    • Changes In Light Intensity
    • Relative Intensity Changes
    • Motion Events
    • Power Sensor
    • Column Direction
    • Entire Block
• isbn_formats:
  • format: Print on Demand(PoD) ISBN, value: 978-1-4799-5342-4, isbnType: New-2005
  • format: USB ISBN, value: 978-1-4799-5340-0, isbnType: New-2005
  • format: Electronic ISBN, value: 978-1-4799-5341-7, isbnType: New-2005
• authors:
  • Author Name: Heng Guo
    Affiliation: VIRTUS IC Design Center of Excellence, Nanyang Technological University, Singapore
    Author URL: https://ieeexplore.ieee.org/author/37089270697
    ID: 37089270697
    Order: 1
    Author Affiliations:
    • VIRTUS IC Design Center of Excellence, Nanyang Technological University, Singapore
  • Author Name: Jing Huang
    Affiliation: VIRTUS IC Design Center of Excellence, Nanyang Technological University, Singapore
    Author URL: https://ieeexplore.ieee.org/author/37085848232
    ID: 37085848232
    Order: 2
    Author Affiliations:
    • VIRTUS IC Design Center of Excellence, Nanyang Technological University, Singapore
  • Author Name: Menghan Guo
    Affiliation: VIRTUS IC Design Center of Excellence, Nanyang Technological University, Singapore
    Author URL: https://ieeexplore.ieee.org/author/37085361629
    ID: 37085361629
    Order: 3
    Author Affiliations:
    • VIRTUS IC Design Center of Excellence, Nanyang Technological University, Singapore
  • Author Name: Shoushun Chen
    Affiliation: VIRTUS IC Design Center of Excellence, Nanyang Technological University, Singapore
    Author URL: https://ieeexplore.ieee.org/author/37535877300
    ID: 37535877300
    Order: 4
    Author Affiliations:
    • VIRTUS IC Design Center of Excellence, Nanyang Technological University, Singapore

Image Sensor

• sensor_type: CMOS
• resolution: 64x64
• dynamic_range: 120 dB
• pixel_size: 34x34 µm
• dark_current: not specified

Optical Data

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

Performance Metrics

• power_consumption: average power can be reduced to 1/9 of conventional DVS, about 1 mW.

Applications & Benefits

• cell_imaging: not specified
• benefits: Low power consumption due to adaptive pixel management; reduction of power to 1/9 of conventional designs.

Supporting Organizations

• supported_by: VIRTUS IC Design Center of Excellence, School of EEE, Nanyang Technological University, Singapore

Manuscript Details

• publication_date: 22-25 May 2016

Relevancy Score

• score: 9
• missing_fields:
  • focal_length
  • aperture
  • field_of_view
  • distortion
  • frame_rate
  • signal_to_noise_ratio
  • sensitivity
  • shutter_speed
  • noise
  • cell_imaging

Processed JSON Filename

request_83b5b062-bd06-4e34-b27d-294a98927166-dynamic_resolution_eventbased_temporal_contrast_vision_sensor.json