Image refocusing control method and system

A technology of refocusing and control methods, applied in image enhancement, image analysis, stereoscopic systems, etc., can solve the problems of reducing overall sharpness, high cost, and expensive image sensors.

Pending Publication Date: 2019-04-09
GUANGDONG INST OF AERONAUTICS & ASTRONAUTICS EQUIP & TECH
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Problems solved by technology

[0004] Based on this, it is necessary to provide a control method for image refocusing in view of the current image sensors integrated with microlens arrays that are used for image refocusing, which are expensive, costly, and tend to reduce the overall clarity under the condition of multiple focal lengths. and system

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  • Image refocusing control method and system
  • Image refocusing control method and system
  • Image refocusing control method and system

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Embodiment Construction

[0050] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Alternative embodiments of the invention are shown in the drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided for the purpose of making the disclosure of the present invention more thorough and comprehensive.

[0051] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention. As used in the embodiments of the present invention and the appended claims, the singular forms "a", "said" a...

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Abstract

The invention relates to an image refocusing control method and system. The control method comprises the steps: projecting a feature point pattern of a target object; capturing at least two images according to the feature point pattern at different capturing angles and the focal lengths, so as to obtain the position offset of image points of an image point group corresponding to the same feature point in different images; acquiring high-accuracy depth information according to the image point group, and generating a depth map, thereby realizing accurate focusing of a target area on the image according to the depth map, and improving the user experience.

Description

technical field [0001] The present invention relates to the technical field of image display, in particular to an image refocusing control method and system. Background technique [0002] Refocusing of images or videos is an important means of photography and filming. An exemplary method of refocusing a single image is to use an image sensor integrated with a special microlens array having different sets of focal lengths. When taking a snapshot, by controlling the focus of the microlens array on the subject, the pixels of the image sensor are focused at different depths, thereby directly realizing the scene refocusing of a single image or video. [0003] However, the image sensor integrated with the microlens array is expensive, and the cost is high, and the overall definition is easy to be reduced under the condition of multiple focal lengths. Contents of the invention [0004] Based on this, it is necessary to provide a control method for image refocusing in view of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/232G06T7/50H04N13/271
CPCG06T7/50G06T2207/10016H04N23/67
Inventor 吕键曾贵
Owner GUANGDONG INST OF AERONAUTICS & ASTRONAUTICS EQUIP & TECH
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