Method and system for determining the left and right boundaries of a vehicle in an image
A technology of image middle and right boundaries, applied in the field of image processing, can solve problems such as difficult to accurately determine vehicle boundaries, and achieve the effect of high reliability, high stability, and small amount of calculation
Active Publication Date: 2021-04-06
ZONGMU TECH SHANGHAI CO LTD
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Problems solved by technology
[0004] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a method and system for determining the left and right boundaries of a vehicle in an image, which is used to solve the problem in the prior art that it is difficult to accurately determine the boundary of a vehicle in an image
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[0033] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, in the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.
[0034] It should be noted that the diagrams provided in the following embodiments are only schematically illustrating the basic ideas of the present invention, and only the components related to the present invention are shown in the diagrams rather than the number, shape and shape of the compo...
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The invention provides a method and system for determining the left and right boundaries of a vehicle in an image. After obtaining relatively accurate vehicle bottom edge information in the image, the vertical gradient in the extended area of the vehicle bottom edge is projected onto the horizontal direction, and the peak value change is used The characteristics of the candidate area of the left and right boundaries of the vehicle are calculated, the calculation amount is small, and the reliability is high, and the coordinate boundary information of the vehicle can be obtained relatively quickly and accurately; Part of the area on the right side of the side boundary is a wheel or other shadow area, and part of the area on the left side of the right border is a wheel or other shadow area, and the contrast of the left and right areas is calculated separately, and the coordinates of the left and right boundaries are evaluated by it, so as to select The left and right boundaries of the vehicle in the image are simple and clear with high stability.
Description
technical field [0001] The invention relates to the field of image processing, in particular to a method and system for determining the left and right boundaries of a vehicle in an image. Background technique [0002] At present, in the research field of autonomous driving, vehicle detection is one of the important projects. Traditional vehicle detection uses the "sliding window" method or saliency analysis method to obtain the candidate area of the target vehicle in the image, and then uses a classifier to judge whether the candidate area is yes or no. There are also other methods, such as the edgebox algorithm, which use the merging and separation of candidate areas to finally obtain the candidate area of the target vehicle in the image, and then send the candidate area to the subsequent classifier for yes or no judgment. [0003] However, these methods are not very accurate in determining the vehicle boundary, because the "sliding window" or the merging and separatio...
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IPC IPC(8): G06K9/00
CPCG06T2207/30252G06T2207/20224G06V20/584G06V2201/08
Inventor 吴子章王凡唐锐
Owner ZONGMU TECH SHANGHAI CO LTD