公开(公告)号：US20210089806A1

公开(公告)日：2021-03-25

申请号：US16579111

申请日：2019-09-23

Applicant: Hong Kong Applied Science and Technology Research Institute Co., Ltd.

Inventor： Tian Qiu ,  Chi Shing Wong ,  Junlin Chen

IPC: G06K9/46 ,  G06T17/20 ,  G06T7/73 ,  G06T5/40 ,  G06T3/00

Abstract: Systems and methods which obtain template images corresponding to pattern units of tessellated images using a template unit boundary identification technique are described. Template unit boundary identification techniques of embodiments operate to analyze a sample of a tessellated image to determine a template unit size for the template image, use the determined template unit size to define pixel analysis line segments for identifying template unit boundaries in the tessellated image, and select a template image based on the template unit boundaries identified using the pixel analysis line segments. One or more sample area images may be selected for use in determining a template unit size. Pixel analysis line segments, configured based upon a determined template unit size, may be used for identifying boundaries of a template unit. Moreover, dynamic template image updating may be provided.

公开(公告)号：US11023770B2

公开(公告)日：2021-06-01

申请号：US16579111

申请日：2019-09-23

Applicant: Hong Kong Applied Science and Technology Research Institute Co., Ltd.

Inventor： Tian Qiu ,  Chi Shing Wong ,  Junlin Chen

IPC: G06K9/46 ,  G06T17/20 ,  G06T3/00 ,  G06T5/40 ,  G06T7/73

Abstract: Systems and methods which obtain template images corresponding to pattern units of tessellated images using a template unit boundary identification technique are described. Template unit boundary identification techniques of embodiments operate to analyze a sample of a tessellated image to determine a template unit size for the template image, use the determined template unit size to define pixel analysis line segments for identifying template unit boundaries in the tessellated image, and select a template image based on the template unit boundaries identified using the pixel analysis line segments. One or more sample area images may be selected for use in determining a template unit size. Pixel analysis line segments, configured based upon a determined template unit size, may be used for identifying boundaries of a template unit. Moreover, dynamic template image updating may be provided.