GB2590879B - Discrete dither - Google Patents

Discrete dither Download PDF

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Publication number
GB2590879B
GB2590879B GB2104678.4A GB202104678A GB2590879B GB 2590879 B GB2590879 B GB 2590879B GB 202104678 A GB202104678 A GB 202104678A GB 2590879 B GB2590879 B GB 2590879B
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GB
United Kingdom
Prior art keywords
discrete dither
dither
discrete
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
GB2104678.4A
Other versions
GB2590879A (en
GB202104678D0 (en
Inventor
Graham Craven Peter
Law Malcolm
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MQA Ltd
Original Assignee
MQA Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MQA Ltd filed Critical MQA Ltd
Priority to GB2104678.4A priority Critical patent/GB2590879B/en
Priority claimed from GB1820620.1A external-priority patent/GB2579858B/en
Publication of GB202104678D0 publication Critical patent/GB202104678D0/en
Publication of GB2590879A publication Critical patent/GB2590879A/en
Application granted granted Critical
Publication of GB2590879B publication Critical patent/GB2590879B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/018—Audio watermarking, i.e. embedding inaudible data in the audio signal
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/3002—Conversion to or from differential modulation
    • H03M7/3004—Digital delta-sigma modulation
    • H03M7/3006—Compensating for, or preventing of, undesired influence of physical parameters
    • H03M7/3008—Compensating for, or preventing of, undesired influence of physical parameters by averaging out the errors, e.g. using dither
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/60—General implementation details not specific to a particular type of compression
    • H03M7/6041—Compression optimized for errors
GB2104678.4A 2018-12-18 2018-12-18 Discrete dither Active GB2590879B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2104678.4A GB2590879B (en) 2018-12-18 2018-12-18 Discrete dither

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1820620.1A GB2579858B (en) 2018-12-18 2018-12-18 Discrete dither
GB2104678.4A GB2590879B (en) 2018-12-18 2018-12-18 Discrete dither

Publications (3)

Publication Number Publication Date
GB202104678D0 GB202104678D0 (en) 2021-05-12
GB2590879A GB2590879A (en) 2021-07-07
GB2590879B true GB2590879B (en) 2022-12-07

Family

ID=75783882

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2104678.4A Active GB2590879B (en) 2018-12-18 2018-12-18 Discrete dither

Country Status (1)

Country Link
GB (1) GB2590879B (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020106102A1 (en) * 2000-12-08 2002-08-08 Au Oscar Chi-Lim Methods and apparatus for hiding data in halftone images

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020106102A1 (en) * 2000-12-08 2002-08-08 Au Oscar Chi-Lim Methods and apparatus for hiding data in halftone images

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Deepika and Sreekumar, "Visual secret sharing using Newton interpolation polynomial and mod operator with PNG images", 2017 International Conference on Innovations in Information, Embedded and Communication Systems (ICIIECS), March 2017. doi: 10.1109/ICIIECS.2017.8275917 *
Kunhu et al, "Hybrid Visual Cryptography cum Watermarking Algorithm for Copyright Protection of Images", 2016 Online International Conference on Green Engineering and Technologies (IC-GET), November 2016. doi: 10.1109/GET.2016.7916858 *

Also Published As

Publication number Publication date
GB2590879A (en) 2021-07-07
GB202104678D0 (en) 2021-05-12

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