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US 8,509,481 B2Granted
Image processing apparatus, image processing method, imaging apparatus
AssigneeCanon Kabushiki Kaisha
InventorKenichi Miyasako
Life of this patent
Estimating the term…
Abstract
An image processing apparatus includes a motion vector detecting unit configured to detect, for each field of a signal, a motion vector in each of a plurality of vector detection areas within the field, a determining unit configured to determine, for each field, a group area obtained by grouping the motion vector detection areas based on the motion vector detected by the motion vector detecting unit, a geometric center calculation unit configured to obtain, for each field, a geometric center of the group area, a determination unit configured to determine group areas that correspond to each other in fields that are in consecutive relation in terms of time by comparing the geometric centers of the group areas obtained for each field in consecutive relation.
Claims18
An image processing apparatus comprising:
- a motion vector detecting unit configured to detect, for each field image of a video signal, a motion vector in each of a plurality of vector detection areas within the field image;
- a group area determining unit configured to determine, for each field image, one or more group areas obtained by grouping the motion vector detection areas based on motion vectors detected by the motion vector detecting unit;
- a geometric center calculation unit configured to obtain, for each group area, the geometric center of the group area;
- a dispersion calculation unit configured to calculate a difference in dispersion values of coordinates of the group areas in fields that are consecutive in terms of time;
- and
- a determination unit configured to determine group areas that correspond to each other in fields that are in consecutive relation in terms of time by comparing the geometric centers of the group areas obtained for each field image in consecutive relation,
- wherein the determination unit determines, if a difference between geometric centers of the group areas is smaller than a predetermined value, the group areas that correspond to each other in fields that are in consecutive relation in terms of time by determining the smallest difference in dispersion values of the group areas obtained for each field in consecutive relation.
4 more elements
An image processing apparatus comprising:
- a motion vector detecting unit configured to detect, for each field image of a video signal, a motion vector in each of a plurality of vector detection areas within the field image;
- a group area determining unit configured to determine, for each field image, one or more group areas obtained by grouping the motion vector detection areas based on motion vectors detected by the motion vector detecting unit;
- a dispersion calculation unit configured to obtain, for each field group area, a dispersion value of coordinates of the group area;
- a geometric center calculation unit configured to calculate a difference in the geometric centers of the group areas in fields that are consecutive in terms of time;
- a determination unit configured to determine group areas that correspond to each other in fields that are in consecutive relation in terms of time by comparing dispersion values of coordinates of the group areas obtained for each field in consecutive relation,
- wherein the determination unit determines, if a difference between dispersion values of the group areas is smaller than a predetermined value, the group areas that correspond to each other in fields that are in consecutive relation in terms of time by determining the smallest difference in geometric centers of the group areas obtained for each field in consecutive relation.
3 more elements
An image processing method comprising:
- detecting, for each field image of a video signal, a motion vector in each of a plurality of vector detection areas within the field image;
- determining, for each field image, one or more group areas obtained by grouping the motion vector detection areas based on motion vectors detected by the motion vector;
- calculating, for each group area, the geometric center of the group area;
- calculating a difference in dispersion values of coordinates of the group areas in fields that are consecutive in terms of time;
- and
- determining group areas that correspond to each other in fields that are in consecutive relation in terms of time by comparing the geometric centers of the group areas obtained for each field image in consecutive relation,
- wherein the group areas are determined that, if a difference between geometric centers of the group areas is smaller than a predetermined value, correspond to each other in fields that are in consecutive relation in terms of time by determining the smallest difference in dispersion values of the group areas obtained for each field in consecutive relation.
4 more elements
An image processing method comprising:
- detecting, for each field image of a video signal, a motion vector in each of a plurality of vector detection areas within the field image;
- determining, for each field image, one or more groups areas obtained by grouping the motion vectors detection areas based on detected motion vector;
- calculating, for each group area, a dispersion value of coordinates of the group area;
- calculating a difference in the geometric centers of the group areas in fields that are consecutive in terms of time;
- determining group areas that correspond to each other in fields that are in consecutive relation in terms of time by comparing dispersion values of coordinates of the group areas obtained for each field in consecutive relation,
- wherein the group areas are determined that, if a difference between dispersion values of the group areas is smaller than a predetermined value, correspond to each other in fields that are in consecutive relation in terms of time by determining the smallest difference in geometric centers of the croup areas obtained for each field in consecutive relation.
3 more elements
Dependencies are inferred from the claim text.