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Vanishing point estimation method and device

A vanishing point and intersection point technology, applied in the field of computer vision, can solve the problems of large amount of computation and high computational complexity, and achieve the effect of reducing the amount of computation

Pending Publication Date: 2021-09-17
HANGZHOU HIKVISION DIGITAL TECH
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  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0003] In order to effectively obtain the vanishing point of the image, exhaustive methods are often used to find the final vanishing point from the hypothetical multiple vanishing points. Such an algorithm requires a large amount of computation when estimating the vanishing point, and the complexity of the computation is very high. high

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  • Vanishing point estimation method and device
  • Vanishing point estimation method and device
  • Vanishing point estimation method and device

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Embodiment Construction

[0072] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present application as recited in the appended claims.

[0073] see figure 1 , the embodiment of the present application provides a network architecture, the network architecture may include a camera, and the camera may be deployed indoors to shoot a video, where the video includes frames of video pictures.

[0074] When the video is captured by the camera, the vanishing point included in each frame of the video picture in the video can be es...

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Abstract

The invention relates to a vanishing point estimation method and device, and belongs to the technical field of computer vision. The method comprises the steps of: obtaining a first intersection point set, wherein the first intersection point set comprises intersection points of straight lines where any two line segments in a first video picture are located; selecting intersection points from the first intersection point set to obtain a second intersection point set, the position relationship between the intersection points and a first vanishing point satisfying preset conditions, wherein the first vanishing point is a vanishing point estimated according to a second video picture, and the second video picture is a previous frame of video picture of the first video picture; estimating the vanishing point of the first video picture according to the second intersection point set. According to the invention, the operation complexity can be reduced.

Description

technical field [0001] The present application relates to the technical field of computer vision, in particular to a method and device for estimating a vanishing point. Background technique [0002] In perspective projection, images of objects extending to infinity in the real scene will appear in a limited range, for example, two (or more) parallel lines intersect at one point after perspective projection, which is called vanishing point. Vanishing point information is widely used in image frame-based scene analysis, such as image-based scene reconstruction, and obtaining internal parameters of image acquisition devices. [0003] In order to effectively obtain the vanishing point of the image, exhaustive methods are often used to find the final vanishing point from the hypothetical multiple vanishing points. Such an algorithm requires a large amount of computation when estimating the vanishing point, and the complexity of the computation is very high. high. Contents of ...

Claims

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Application Information

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IPC IPC(8): G06T7/00G06T5/00G06K9/62
CPCG06T7/0002G06T2207/10021G06F18/23G06T5/80
Inventor 秦延文宋江新毛慧浦世亮
Owner HANGZHOU HIKVISION DIGITAL TECH
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