Stabilizing video

A video and stabilization technology, applied in the direction of TV, color TV, color TV components, etc., can solve the problems of increasing the size of the recording device, increasing the material cost and manufacturing cost of the recording device, etc., to achieve the effect of low complexity

Active Publication Date: 2018-03-27
GOOGLE LLC
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AI Technical Summary

Problems solved by technology

However, optical video stabilization may increase the material and manufacturing costs of the recording device
Also, optical video stabilization may increase the size of the recording unit and it is often desirable to design the recording unit to be smaller

Method used

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Embodiment Construction

[0022] This document generally describes stabilizing video. The transformation can be modified based on information from past frames by identifying the transformation between the most recently received video frame and a previously received video frame, where the transformation indicates frame-to-frame movement of the camera relative to the scene, based on the transformation Video stabilization is performed by generating a second transform with the modified transform and applying the second transform to the currently received frame to generate a stabilized version of the currently received frame. usually refer to figure 1 to describe the process, and then refer to FIG. 2 for a more detailed description.

[0023] figure 1 A diagram showing a video stream being stabilized by a video stabilization process. The figure includes three frames 110a to 110c of the video. The frames may be consecutive such that frame 110b may be a frame captured immediately after frame 110a is captur...

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Abstract

In general, the subject matter can be embodied in methods, systems, and program products for identifying, by a computing system and using first and second frames of a video, a transformation that indicates movement of a camera with respect to the frames. The computing system generates a modified transformation so that the transformation is less representative of recent movement. The computing system uses the transformation and the modified transformation to generate a second transformation. The computing system identifies an anticipated distortion that would be present in a stabilized versionof the second frame. The computing system determines an amount by which to reduce a stabilizing effect. The computing system applies the second transformation to the second frame to stabilize the second frame, where the stabilizing effect has been reduced based on the determined amount by which to reduce the stabilizing effect.

Description

technical field [0001] This article generally deals with stabilizing video. Background technique [0002] Video recording used to be the domain of dedicated video recording devices, but it is more common to find everyday devices capable of recording video, such as cell phones and tablet computers. A problem with most handheld recording devices is that these devices suffer from video judder, the involuntary movement of the user while holding the recording device which affects the quality of the video. [0003] Shaking the recording device may result in an equally shaky video unless, for example, the jitter is compensated for by a video stabilization mechanism. Optical video stabilization can reduce jitter present in video by mechanically moving components of the recording device, such as the lens or image sensor. However, optical video stabilization may increase the material and manufacturing costs of the recording device. Also, optical video stabilization may increase the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T3/00G06T5/00G06T7/246H04N5/232
CPCG06T5/003G06T5/10G06T5/20G06T7/246G06T3/0093G06T7/20G06T2207/10016H04N23/60H04N23/68H04N23/683H04N23/80H04N23/69
Inventor 洪微罗德里戈·卡尔斯罗尼
Owner GOOGLE LLC
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