Texture-based retrieval of similar images

    公开(公告)号:GB2388761A

    公开(公告)日:2003-11-19

    申请号:GB0319202

    申请日:2000-07-06

    Abstract: Retrieving images where channels obtained by transforming the stored and query images to the frequency domain and partitioning them are compared to retrieve similar images. Specifically, the distance between the texture descriptors obtained from the channels is used to measure the similarity of the images. Also disclosed is retrieving images where texture descriptors and rotation information obtained from the stored and query images is used to retrieve images. Specifically, the rotation information obtained from the query image is compared with the rotation information of the stored image, these images are then aligned using this information. The similarity of the images is then measured by comparing the distance between the texture descriptors in both images.

    12.
    发明专利
    未知

    公开(公告)号:FR2798748B1

    公开(公告)日:2006-08-04

    申请号:FR0008909

    申请日:2000-07-07

    Abstract: A texture description method in frequency domains and a texture-based retrieval method using the same, in which image signals are converted into those in a frequency domain of a Polar coordinate system. The texture description method in the frequency domain includes a first step of generating a frequency layout by partitioning the frequency domain into a set of feature channels; a second step of extracting the texture feature values of the image from the respective feature channels; and a third step of constituting a texture descriptor of the image in a vector form using the texture feature values extracted from the respective feature channels of the frequency layout. In a texture-based retrieval described in the frequency domain, a retrieval method capable of satisfying respective or all the retrieval conditions such as scale-, rotation- and intensity-invariant retrieval of relevant texture images is provided. Also, a retrieval method of computing the rough scheme of texture to provide a browsing functionality in retrieving is provided.

    15.
    发明专利
    未知

    公开(公告)号:FR2798748A1

    公开(公告)日:2001-03-23

    申请号:FR0008909

    申请日:2000-07-07

    Abstract: A texture description method in frequency domains and a texture-based retrieval method using the same, in which image signals are converted into those in a frequency domain of a Polar coordinate system. The texture description method in the frequency domain includes a first step of generating a frequency layout by partitioning the frequency domain into a set of feature channels; a second step of extracting the texture feature values of the image from the respective feature channels; and a third step of constituting a texture descriptor of the image in a vector form using the texture feature values extracted from the respective feature channels of the frequency layout. In a texture-based retrieval described in the frequency domain, a retrieval method capable of satisfying respective or all the retrieval conditions such as scale-, rotation- and intensity-invariant retrieval of relevant texture images is provided. Also, a retrieval method of computing the rough scheme of texture to provide a browsing functionality in retrieving is provided.

    TEXTURE DESCRIPTION METHOD AND TEXTURE-BASED RETRIEVAL METHOD IN FREQUENCY DOMAIN

    公开(公告)号:CA2367966A1

    公开(公告)日:2001-01-18

    申请号:CA2367966

    申请日:2000-07-07

    Abstract: The present invention relates to a texture description method in frequency domains and a texture-based retrieval method using the same, in which image signals are converted into those in a frequency domain of Polar coordinate system. The texture description method in the frequency domain comprises: a first step of generating a frequency layout by partitioning the frequency domain into a set of feature channels; a second step of extracting the textu re feature values of the image from the respective feature channels; and a thir d step of constituting a texture descriptor of the image in a vector form usin g the texture feature values extracted from the respective feature channels of the frequency layout. According to the present invention, in a texture-based retrieval described in the frequency domain, a retrieval method capable of satisfying respective or all the retrieval conditions such as scale-, rotati on- and intensity-invariant retrieval of relevant texture images is provided. Also, a retrieval method of computing the rough scheme of texture to provide a browsing functionality in retrieving is provided.

    Texture description method and texture-based retrieval method in frequency domain

    公开(公告)号:GB2355378B

    公开(公告)日:2004-01-21

    申请号:GB0016488

    申请日:2000-07-06

    Abstract: A texture description method in frequency domains and a texture-based retrieval method using the same, in which image signals are converted into those in a frequency domain of a Polar coordinate system. The texture description method in the frequency domain includes a first step of generating a frequency layout by partitioning the frequency domain into a set of feature channels; a second step of extracting the texture feature values of the image from the respective feature channels; and a third step of constituting a texture descriptor of the image in a vector form using the texture feature values extracted from the respective feature channels of the frequency layout. In a texture-based retrieval described in the frequency domain, a retrieval method capable of satisfying respective or all the retrieval conditions such as scale-, rotation- and intensity-invariant retrieval of relevant texture images is provided. Also, a retrieval method of computing the rough scheme of texture to provide a browsing functionality in retrieving is provided.

    VIDEO SUMMARY DESCRIPTION SCHEME AND METHOD AND SYSTEM OF VIDEO SUMMARY DESCRIPTION DATA GENERATION FOR EFFICIENT OVERVIEW AND BROWSING

    公开(公告)号:CA2387404A1

    公开(公告)日:2001-04-19

    申请号:CA2387404

    申请日:2000-09-29

    Abstract: The present invention relates to a video summary description scheme for describing video summary by meta data. The video summary provides overview functionality, which makes feasible to understand overall contents of the original video within short time and navigation and browsing functionalities , which make feasible to search the desired video contents efficiently. According to the present invention the HierarchicalSummary Description Schem e (DS) comprises at least on HighlightLevel DS and selectively comprises the SummaryThemeList DS. The HightlightLevel DS describe highlight level an may have zero or at least one lower HighlightLevel DS. The HighlightLevel DS comprises one or more HighlightSegment DS which is describing highlight segment information constituting the video summary of the highlight level. T he HighlightSegment DS comprises the VideoSegmentLocator DS for describing the time information of corresponding segment interval. Also, the HighlightSegme nt DS may comprise the ImageLocator DS for describing the representative image information of corresponding segment, the SoundLocator DS for describing the representative sound information, and the AudioSegmentLocator DS for describing the audio segment information constituting the audio summary.

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