Hardware Implementation Of A Dct Watermark For Cmos Image Sensors

• doi: 10.1109/ICECS.2008.4674867
• title: Hardware implementation of a DCT watermark for CMOS image sensors
• publisher: IEEE
• isbn: 978-1-4244-2182-4
• issn:
• partnum: 08EX2260
• rank: 2565
• access_type: LOCKED
• content_type: Conferences
• abstract: This paper presents a novel algorithm for watermark (WM) embedding in the discrete cosine transform (DCT) domain and its implementation in hardware. The proposed algorithm is shown to be easily integrated in the peripheral image processing circuitry of a CMOS image sensor that holds JPEG compression capabilities. The proposed algorithm embeds the WM in middle frequency DCT coefficients, according to the output of a random number generator. This addresses the trade-off between the WM robustness and image quality degradation. Choosing the DCT coefficient in a pseudo-random manner provides higher effective coverage, as a potential attacker must consider a wide range of possible coefficients. Matlab simulations show the ability of the algorithm to ensure image authenticity even when changing only 2 DCT coefficients in each 8times8 block. The WM embedder was designed in Verilog according to the proposed algorithm.
• article_number: 4674867
• pdf_url: https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=4674867
• html_url: https://ieeexplore.ieee.org/document/4674867/
• abstract_url: https://ieeexplore.ieee.org/document/4674867/
• publication_title: 2008 15th IEEE International Conference on Electronics, Circuits and Systems
• conference_location: Saint Julian's, Malta
• conference_dates: 31 Aug.-3 Sept. 2008
• publication_number: 4664823
• is_number: 4674773
• publication_year: 2008
• publication_date: 31 Aug.-3 Sept. 2008
• start_page: 368
• end_page: 371
• citing_paper_count: 7
• citing_patent_count: 3
• download_count: 345
• insert_date: 20081117
• index_terms:
  • ieee_terms:
    • Hardware
    • Discrete cosine transforms
    • Watermarking
    • CMOS image sensors
    • Image processing
    • Circuits
    • Transform coding
    • Image coding
    • Frequency
    • Random number generation
  • dynamic_index_terms:
    • Image Sensor
    • Camera Sensor
    • Hardware Implementation
    • Discrete Cosine Transform
    • Image Quality
    • Random Generation
    • Random Number Generator
    • JPEG Compression
    • Digital Watermarking
    • Watermarked Image
    • Quantum
    • Digital Images
    • System Architecture
    • Spatial Domain
    • Analog-to-digital Converter
    • Analog-to-digital
    • Digital-to-analog Converter
    • Security Level
    • Data Block
    • Image Compression
    • Integral Image
    • Coding Tree
    • Huffman Coding
    • Quantization Levels
• isbn_formats:
  • format: CD, value: 978-1-4244-2182-4, isbnType: New-2005
  • format: Print ISBN, value: 978-1-4244-2181-7, isbnType: New-2005
• authors:
  • Author Name: Yonatan Shoshan
    Affiliation: Department of Electrical and Computer Engineering, University of Calgary, AB, Canada
    Author URL: https://ieeexplore.ieee.org/author/37691612700
    ID: 37691612700
    Order: 1
    Author Affiliations:
    • Department of Electrical and Computer Engineering, University of Calgary, AB, Canada
  • Author Name: Alexander Fish
    Affiliation: Department of Electrical and Computer Engineering, University of Calgary, AB, Canada
    Author URL: https://ieeexplore.ieee.org/author/37268457100
    ID: 37268457100
    Order: 2
    Author Affiliations:
    • Department of Electrical and Computer Engineering, University of Calgary, AB, Canada
  • Author Name: Graham A. Jullien
    Affiliation: Department of Electrical and Computer Engineering, University of Calgary, AB, Canada
    Author URL: https://ieeexplore.ieee.org/author/37276214100
    ID: 37276214100
    Order: 3
    Author Affiliations:
    • Department of Electrical and Computer Engineering, University of Calgary, AB, Canada
  • Author Name: Orly Yadid-Pecht
    Affiliation: Department of Electrical and Computer Engineering, University of Calgary, AB, Canada
    Author URL: https://ieeexplore.ieee.org/author/38298354100
    ID: 38298354100
    Order: 4
    Author Affiliations:
    • Department of Electrical and Computer Engineering, University of Calgary, AB, Canada

Image Sensor

• sensor_type: CMOS
• resolution: not specified
• dynamic_range: not specified
• pixel_size: not specified
• 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: The algorithm ensures image authenticity for applications like surveillance, medical imaging, and forensics.
• benefits: Integration of watermarking (WM) in real-time with JPEG compression improves security for digital imaging.

Supporting Organizations

• supported_by: University of Calgary

Manuscript Details

• publication_date: 31 Aug.-3 Sept. 2008

Relevancy Score

• score: 8
• missing_fields:
  • resolution
  • dynamic_range
  • pixel_size
  • dark_current
  • focal_length
  • aperture
  • field_of_view
  • distortion
  • frame_rate
  • signal_to_noise_ratio
  • sensitivity
  • shutter_speed
  • power_consumption
  • noise

Processed JSON Filename

request_a96d0e2c-3b68-4e03-af56-a071427c1900-hardware_implementation_of_a_dct_watermark_for_cmos_image_sensors.json