Curve determination method, device and equipment

A technology to determine the method and curve, which is applied in the field of image processing, can solve the problems that the zoom follow curve cannot be applied to cameras, poor image clarity, and unclear images, etc., and achieve rapid calibration of the zoom follow curve, solve the problem of unsmooth and image effects Good results

CN114245002APending Publication Date: 2022-03-25HANGZHOU HIKVISION DIGITAL TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2022-03-25

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Abstract

The invention provides a curve determination method, device and equipment. The method comprises the following steps: controlling a zoom lens to move to Q first position points through a zoom motor; controlling a zoom lens to stop at a first position point through a zoom motor, and controlling a focusing lens to move to a second position point matched with the first position point through a focusing motor; wherein when the focusing lens moves to the second position point, the image acquired by the camera meets the definition requirement; constructing Q coordinate points based on the Q first position points and the Q second position points; performing polynomial curve fitting on the Q coordinate points to obtain a forward zoom following curve; the forward zoom following curve represents the mapping relation between the position point of the zoom lens and the position point of the focusing lens. According to the technical scheme, the image acquired based on the zoom following curve is clear, and the image effect is good.
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Description

technical field

[0001] The present application relates to the technical field of image processing, and in particular to a method, device and equipment for determining a curve. Background technique

[0002] Cameras usually have a zoom (also called zoom) function and a focus function. For example, a camera includes a zoom motor, a focus motor, a zoom lens, and a focus lens. The zoom lens is driven by the zoom motor to move to achieve the zoom function. Driven by the focus motor The focusing lens moves to achieve the focusing function.

[0003] Usually, the zoom lens and the focus lens are moved separately. When the zoom lens is driven by the zoom motor, the focus lens needs to be driven by the focus motor to move, so as to realize zoom follow. Zoom follow means that when the zoom motor controls the zoom lens to perform zoom operation, the focus motor also controls the focus lens to perform focus operation, that is, the focus motor moves together with the zoom motor.

[0004] ...

Examples

Embodiment Construction

[0024] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, rather than limiting the present application. As used in this application and the claims, the singular forms "a", "the" and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the term "and / or" as used herein is meant to include any and all possible combinations of one or more of the associated listed items.

[0025] It should be understood that although the embodiments of the present application may use terms such as first, second, and third to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of the present application, first information may also be called second information, and similarly, second ...