公开(公告)号：EP1498847A3

公开(公告)日：2006-02-15

申请号：EP04076850.9

申请日：2004-06-25

Applicant: STMicroelectronics S.r.l.

Inventor： Curti, Salvatore ,  Battiato, Sebastiano ,  Scordato, Emiliano ,  Tortora, Marcello ,  Ardizzone, Edoardo ,  La Cascia, Marco

IPC: G06T7/00

CPC classification number: G06T7/536

Abstract: There is described a method of obtaining a depth map from a single digital image of a three-dimensional scene containing geometric objects. It envisages the identification in the image of at least one horizontal plane or one vertical plane of the three-dimensional scene and the assignment to every point of the image forming part of the identified plane, or to each one of the identified planes, of a depth level according to its distance from, respectively, a predetermined horizontal or vertical reference straight of the image. In particular, the identification of at least one plane comprises the identification in the image of at least two vanishing lines corresponding to two parallel lines in the plane and the assignment of a depth level is made in accordance with the angular coefficients of the identified vanishing lines.
Also described is a completely automatic method for obtaining a depth map from a single digital image of any three-dimensional scene.

公开(公告)号：EP1507232A2

公开(公告)日：2005-02-16

申请号：EP04015830.5

申请日：2004-07-06

Applicant: STMicroelectronics S.r.l.

Inventor： Curti, Salvatore ,  Battiato, Sebastiono ,  Scordato, Emiliano ,  Tortora, Marcello ,  Ardizzone, Edoardo ,  La Cascia, Marco

IPC: G06T5/00

CPC classification number: G06K9/00704 ,  G06F17/3025 ,  G06K9/00697 ,  G06T7/11

Abstract: A method (Img_Class) for associating with a digital image (Img RGB ) a class of a plurality of predefined classes characterized by respective models. The method comprises the following phases:

dividing (Reg_Detect) the digital image pixel by pixel into one or more regions belonging to a set of predefined regions that differ from each other on account of their type of content, the division being effected by establishing whether or not a pixel of the image belongs to a respective region on the basis of an operation of analyzing the parameters this pixel, the analysis operation being carried out by verifying that the parameters satisfy predefined conditions and/or logicomathematical relationships of belonging to the respective region,
acquiring (f 1 ) from the digital image divided into regions (Img Reg ) information regarding the regions that are present in it,
comparing (Cmp) this information with at least one model characterizing a respective class of said plurality,
associating (SetCL 1 ) with the digital image a class (I_Class) on the basis of the comparison phase.

公开(公告)号：EP1498847A2

公开(公告)日：2005-01-19

申请号：EP04076850.9

申请日：2004-06-25

Applicant: STMicroelectronics S.r.l.

Inventor： Curti, Salvatore ,  Battiato, Sebastiano ,  Scordato, Emiliano ,  Tortora, Marcello ,  Ardizzone, Edoardo ,  La Cascia, Marco

IPC: G06T7/00

CPC classification number: G06T7/536

Abstract: There is described a method of obtaining a depth map from a single digital image of a three-dimensional scene containing geometric objects. It envisages the identification in the image of at least one horizontal plane or one vertical plane of the three-dimensional scene and the assignment to every point of the image forming part of the identified plane, or to each one of the identified planes, of a depth level according to its distance from, respectively, a predetermined horizontal or vertical reference straight of the image. In particular, the identification of at least one plane comprises the identification in the image of at least two vanishing lines corresponding to two parallel lines in the plane and the assignment of a depth level is made in accordance with the angular coefficients of the identified vanishing lines.
Also described is a completely automatic method for obtaining a depth map from a single digital image of any three-dimensional scene.

Abstract translation: 描述了从包含几何对象的三维场景的单个数字图像中获得深度图的方法。 它设想在三维场景的至少一个水平面或一个垂直平面的图像中进行识别，以及对形成所识别平面的一部分或者被识别平面中的每一个的图像的每个点的分配 根据其与图像的预定水平或垂直参考直线的距离的深度级别。 特别地，至少一个平面的识别包括在平面中对应于两个平行线的至少两个消失线的图像中的识别，并且根据所识别的消失线的角度系数进行深度级的分配 。 还描述了从任何三维场景的单个数字图像获得深度图的完全自动的方法。