GB2582072B - Sampling for feature detection - Google Patents

Sampling for feature detection Download PDF

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Publication number
GB2582072B
GB2582072B GB2004199.2A GB202004199A GB2582072B GB 2582072 B GB2582072 B GB 2582072B GB 202004199 A GB202004199 A GB 202004199A GB 2582072 B GB2582072 B GB 2582072B
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United Kingdom
Prior art keywords
sampling
feature detection
feature
detection
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
GB2004199.2A
Other versions
GB202004199D0 (en
GB2582072A (en
Inventor
Smith Timothy
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.)
Imagination Technologies Ltd
Original Assignee
Imagination Technologies 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 Imagination Technologies Ltd filed Critical Imagination Technologies Ltd
Priority to GB2004199.2A priority Critical patent/GB2582072B/en
Priority claimed from GB1805695.2A external-priority patent/GB2572756B/en
Publication of GB202004199D0 publication Critical patent/GB202004199D0/en
Publication of GB2582072A publication Critical patent/GB2582072A/en
Application granted granted Critical
Publication of GB2582072B publication Critical patent/GB2582072B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V20/00—Scenes; Scene-specific elements
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/70—Determining position or orientation of objects or cameras
    • G06T7/73—Determining position or orientation of objects or cameras using feature-based methods
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/40—Extraction of image or video features
    • G06V10/46—Descriptors for shape, contour or point-related descriptors, e.g. scale invariant feature transform [SIFT] or bags of words [BoW]; Salient regional features
    • G06V10/462—Salient features, e.g. scale invariant feature transforms [SIFT]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
    • G06V30/10—Character recognition
    • G06V30/24—Character recognition characterised by the processing or recognition method
    • G06V30/248—Character recognition characterised by the processing or recognition method involving plural approaches, e.g. verification by template match; Resolving confusion among similar patterns, e.g. "O" versus "Q"
    • G06V30/2504—Coarse or fine approaches, e.g. resolution of ambiguities or multiscale approaches
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/40—Extraction of image or video features
    • G06V10/46—Descriptors for shape, contour or point-related descriptors, e.g. scale invariant feature transform [SIFT] or bags of words [BoW]; Salient regional features
    • G06V10/467—Encoded features or binary features, e.g. local binary patterns [LBP]
GB2004199.2A 2018-04-05 2018-04-05 Sampling for feature detection Active GB2582072B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2004199.2A GB2582072B (en) 2018-04-05 2018-04-05 Sampling for feature detection

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1805695.2A GB2572756B (en) 2018-04-05 2018-04-05 Sampling for feature detection
GB2004199.2A GB2582072B (en) 2018-04-05 2018-04-05 Sampling for feature detection

Publications (3)

Publication Number Publication Date
GB202004199D0 GB202004199D0 (en) 2020-05-06
GB2582072A GB2582072A (en) 2020-09-09
GB2582072B true GB2582072B (en) 2021-06-30

Family

ID=70546830

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2004199.2A Active GB2582072B (en) 2018-04-05 2018-04-05 Sampling for feature detection

Country Status (1)

Country Link
GB (1) GB2582072B (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110255781A1 (en) * 2010-04-20 2011-10-20 Qualcomm Incorporated Efficient descriptor extraction over multiple levels of an image scale space

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110255781A1 (en) * 2010-04-20 2011-10-20 Qualcomm Incorporated Efficient descriptor extraction over multiple levels of an image scale space

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Krig, Scott. Computer vision metrics. Berlin, Germany: Springer, 2016 *
Marimon, David, et al. "DARTs: Efficient scale-space extraction of DAISY keypoints." 2010 IEEE Computer Society Conference on Computer Vision and Pattern Recognition. IEEE, 2010 *

Also Published As

Publication number Publication date
GB202004199D0 (en) 2020-05-06
GB2582072A (en) 2020-09-09

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