Disparity computing method and stereo matching system adopting same
A disparity calculation and stereo matching technology, applied in stereo system, calculation, image data processing, etc., can solve problems such as wrong depth, object deformation, parallax information error, etc.
Inactive Publication Date: 2015-03-25
NOVATEK MICROELECTRONICS CORP
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[0004] However, when stereo matching is performed between two different perspective images to obtain depth information, since the landscapes of the images are not the same, and the distance between the two image capture devices used to obtain the two different perspective images is also different, so how to obtain the depth information? Correctly searching for matching objects between two different viewing angle images and obtaining correct disparity information will affect the accuracy of depth information
For example, when there is a matching error between the objects of the two images, for example, the object A of the left-view image is matched to the object B of the right-view image instead of A, the disparity information of the object will be wrong, so the wrong depth information will be obtained. Causes objects to appear at the wrong depth and makes the corresponding object invisible or distorted
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[0014] In an exemplary embodiment of the present invention, the stereo matching system generates an energy matrix for judging the disparity of the current region of the current image according to the disparity information of a previous image and the disparity information of the previous region of the current image. Accordingly, the disparity map output by the stereo matching system can have temporal and spatial continuity at the same time, thereby obtaining an accurate and stable disparity map. In order to understand the present invention more clearly, at least one exemplary embodiment will be described in detail below with reference to the accompanying drawings. In addition, the connection terms mentioned in the following embodiments, such as: coupling or connection, etc., are only used for illustration with reference to the drawings, and are not used to limit the actual connection between two elements. indirect coupling.
[0015] Please refer to figure 1 , figure 1 It is ...
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The invention discloses a disparity computing method which is applied to a stereo matching system. The disparity computing method comprises the steps that a universe energy matrix is computed according to a first image, a second image and a previous disparity matrix of a previous image; a universe disparity matrix is computed according to the universe energy matrix and a first matching algorithm; an area energy matrix between a first image block and a second image block is computed according to the first image block of the first image, the second image block of the second image, a previous block disparity matrix between the first image and the second image and the universe disparity matrix, and according to the area energy matrix and a second matching algorithm, an area disparity matrix between the first image block and the second image block is computed.
Description
technical field [0001] The present invention relates to a parallax calculation method and its stereo matching system, in particular to a parallax calculation method capable of generating a parallax map with temporal and spatial stability and its stereo matching system. Background technique [0002] With the continuous advancement of image technology, consumers can choose display devices with increasingly diverse sizes and functions. In order to meet different user needs, various display device manufacturers are also trying to provide new products with better output performance and resolution. , one of the most noteworthy products is a display device with three-dimensional stereoscopic display. Common 3D display technologies include Polarized, Interlaced, or Anaglyph display methods. The principle is to project images from different viewing angles related to depth information to the The left and right eyes of a person can see images of different perspectives in the left and ...
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IPC IPC(8): H04N13/00
CPCG06T7/593
Inventor 刘广智周磊周正伟
Owner NOVATEK MICROELECTRONICS CORP