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EP0458239A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Motion vector detecting apparatus and image stabilizer including the same

Assignee: Panasonic Holdings Corp
•
Filing: 1991-05-21
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Granted: —
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Expires: 2011-05-21
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Abstract

Abstract A motion vector detecting apparatus (50; 150) comprising: a motion vector detector (20) which divides an image of an inputted image signal into a plurality of regions so as to calculate motion vectors at the regions, respectively; a characteristics detector (11; 111) for detecting characteristics of the motion vectors or of calculation data of the motion vectors so as to detect a state in which a number of points having close correlation exist in the image; and a vector control and decision unit (12; 113) which determines, when said characteristics detector (11; 111) has detected the state, some of the motion vectors at one of the regions free from the state so as to select a motion vector of the image signal from the some of the motion vectors by neglecting the remaining motion vectors at the remaining regions in the state, and an image stabilizer (100; 200) for correcting sway of an outputted image, which includes the motion vector detecting apparatus (50; 150).

Inventors

  • 👤 Atsushi Morimura
  • 👤 Kenya Uomori

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-09 11:01
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/14; H04N5/144; H04N5/145; H04N23/00; H04N23/60; H04N23/80; H04N23/81

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 142 words
A motion vector detecting apparatus (50; 150) comprising: a motion vector detector (20) which divides an image of an inputted image signal into a plurality of regions so as to calculate motion vectors at the regions, respectively; a characteristics detector (11; 111) for detecting characteristics of the motion vectors or of calculation data of the motion vectors so as to detect a state in which a number of points having close correlation exist in the image; and a vector control and decision unit (12; 113) which determines, when said characteristics detector (11; 111) has detected the state, some of the motion vectors at one of the regions free from the state so as to select a motion vector of the image signal from the some of the motion vectors by neglecting the remaining motion vectors at the remaining regions in the state.
Claim 2
Dependent Claim 35 words
A motion vector detecting apparatus (50) as claimed in Claim 1, wherein said characteristics detector (11) detects a state in which close correlation exist in horizontal and vertical directions or oblique directions in the image.
Claim 3
Dependent Claim 77 words
A motion vector detecting apparatus (150) as claimed in Claim 1, wherein said characteristics detector (111) detects characteristics that one of the motion vectors changes at random in one of the regions when a number of points having close correlation exist in the image such that said vector control and decision unit (113) reduces, when said characteristics detector (111) has detected the characteristics in the one of the regions, magnitude of the one of the motion vectors.
Claim 4
Dependent Claim 213 words
An image stabilizer (100; 200) for correcting sway of an outputted image, comprising: a motion vector detector (20) which divides an image of an inputted image signal into a plurality of regions so as to calculate motion vectors at the regions, respectively; a characteristics detector (11; 111) for detecting characteristics of the motion vectors or of calculation data of the motion vectors so as to detect a state in which a number of points having close correlation exist in the image; a vector control and decision unit (12; 113) which determines, when said characteristics detector (11; 111) has detected the state, some of the motion vectors at one of the regions free from the state so as to select a motion vector of the image signal from the some of the motion vectors by neglecting the remaining motion vectors at the remaining regions in the state; and an image output controller (17; 117) for interpolating the image so as to be capable of outputting the image disposed at an arbitrary position; wherein when said motion vector detector (20) has detected sway of the image, said image output controller (17; 117) shifts the image in a direction opposite to that of the motion vector determined by said vector control and decision unit (12; 113).
Claim 5
Dependent Claim 33 words
An image stabilizer (100) as claimed in Claim 4, wherein said characteristics detector (11) detects a state in which close correlation exist in horizontal and vertical directions or oblique directions in the image.
Claim 6
Dependent Claim 75 words
An image stabilizer (200) as claimed in Claim 4, wherein said characteristics detector (111) detects characteristics that one of the motion vectors changes at random in one of the regions when a number of points having close correlation exist in the image such that said vector control and decision unit (112) reduces, when said characteristics detector (111) has detected the characteristics in the one of the regions, magnitude of the one of the motion vectors.

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