STEREOSCOPIC IMAGE DISPLAY DEVICE AND METHOD OF DERIVING MOTION VECTOR
A motion vector is derived with high accuracy while avoiding deriving of an erroneous motion. A stereoscopic image display device 100 includes an image acquisition unit 148 for acquiring stereoscopic image data and a vector deriving unit 158 that derives correlation values representing correlation strength between each reference-part image data constituting image data in segmented areas of an arbitrary first frame 204 of the stereoscopic image data and objective-part image data being image data in segmented areas of a second frame 206 different from the first frame and that extracts the objective-part image data having the highest correlation value to the reference-part image data to derive the motion vector, with respect to each reference-part image data. The vector deriving unit derives the correlation values between the reference-part image data and the objective-part image data, both of which belong to the right-eye image data 202 b , or the correlation values between the reference-part image data and the objective-part image data, both of which belong to the left-eye image data 202 a.
1 . A stereoscopic image display device comprising:
an image acquisition unit configured to acquire stereoscopic image data composed of a combination of “left-eye” image data and “right-eye” image data for allowing a stereoscopic image to be perceived due to binocular parallax; and
a vector deriving unit configured to:
respectively derive correlation values representing correlation strength between each reference-part image data, which constitutes image data in segmented areas of an arbitrary first frame of the stereoscopic image data, and a plurality of objective-part image data, which constitute image data in segmented areas of a second frame different from the first frame of the stereoscopic image data and which are comparative objects to be compared with the each reference-part image data; and
extract, for each reference-part image data, the objective-part image data having the highest correlation value to the reference-part image data, thereby deriving a motion vector between the reference-part image data and the extracted objective-part image data, wherein
the vector deriving unit is configured to derive either the correlation values between the reference-part image data and the objective-part image data, both of which belong to the “right-eye” image data, or the correlation values between the reference-part image data and the objective-part image data, both of which belong to the “left-eye” image data.
2 . The stereoscopic image display device of claim 1 , further comprising
a left-right judgment unit configured to:
judge whether unit image data, which is obtained by compartmentalizing the stereoscopic image data every predetermined pixels, is belonging to the “left-eye” image data or the “right-eye” image data, based on synchronous signals inputted together with the stereoscopic image data; and
affix image information representing whether the unit image data is belonging to either the “left-eye” image data or the “right-eye” image data, with respect to each unit image data.
3 . The stereoscopic image display device of claim 1 , wherein
predetermined unit image data constituting the stereoscopic image data has image information affixed thereto to represent whether the unit image data is belonging to either the “left-eye” image data or the “right-eye” image data, and
the vector deriving unit is configured to judge whether the unit image data is belonging to either the “left-eye” image data or the “right-eye” image data, based on the image information.
4 . A method of deriving a motion vector, comprising the steps of:
acquiring stereoscopic image data composed of a combination of “left-eye” image data and “right-eye” image data for allowing a stereoscopic image to be perceived due to binocular parallax;
respectively deriving correlation values representing correlation strength between each reference-part image data, which constitutes image data in segmented areas of an arbitrary first frame of the stereoscopic image data, and a plurality of objective-part image data, which constitute image data in segmented areas of a second frame different from the first frame of the stereoscopic image data and which are comparative objects to be compared with the each reference-part image data; and
extracting, for each reference-part image data, the objective-part image data having the highest correlation value to the reference-part image data, thereby deriving a motion vector between the reference-part image data and the extracted objective-part image data.
5 . The method of deriving a motion vector of claim 4 , further comprising the steps of:
judging whether unit image data, which is obtained by compartmentalizing the stereoscopic image data every predetermined pixels, is belonging to the “left-eye” image data or the “right-eye” image data, based on synchronous signals inputted together with the stereoscopic image data; and
affixing image information representing whether the unit image data is belonging to either the “left-eye” image data or the “right-eye” image data, with respect to each unit image data.
6 . The method of deriving a motion vector of claim 4 , wherein
predetermined unit image data constituting the stereoscopic image data has image information affixed thereto to represent whether the unit image data is belonging to either the “left-eye” image data or the “right-eye” image data, and
the method further comprises the step of judging whether the unit image data is belonging to either the “left-eye” image data or the “right-eye” image data, based on the image information.
7 . The stereoscopic image display device of claim 2 , wherein
predetermined unit image data constituting the stereoscopic image data has image information affixed thereto to represent whether the unit image data is belonging to either the “left-eye” image data or the “right-eye” image data, and
the vector deriving unit is configured to judge whether the unit image data is belonging to either the “left-eye” image data or the “right-eye” image data, based on the image information.
8 . The method of deriving a motion vector of claim 5 , wherein
predetermined unit image data constituting the stereoscopic image data has image information affixed thereto to represent whether the unit image data is belonging to either the “left-eye” image data or the “right-eye” image data, and
the method further comprises the step of judging whether the unit image data is belonging to either the “left-eye” image data or the “right-eye” image data, based on the image information.