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System, method and apparatus for stereo roll correction using autofocus feedback

An automatic focus and roll angle technology, applied in stereo systems, image analysis, instruments, etc., can solve problems such as visual discomfort for viewers, misaligned images captured, and time shifts

Active Publication Date: 2019-08-09
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this "perfect" image alignment of a stereoscopic image pair can shift over time due to gravity, heat, mechanical assembly, and wear during use
Imperfect alignment of these sensors (when present) can result in capturing misaligned images that, unless otherwise corrected, can cause visual discomfort to the viewer
In some cases, roll offsets cause depth measurement errors

Method used

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  • System, method and apparatus for stereo roll correction using autofocus feedback
  • System, method and apparatus for stereo roll correction using autofocus feedback
  • System, method and apparatus for stereo roll correction using autofocus feedback

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Embodiment Construction

[0025] Certain visual experiments have shown that in order to view a three-dimensional (3D) presentation based on stereoscopic images (sometimes referred to herein as "stereoscopic images," "stereoscopic images," or "stereoscopic image pairs") with minimal discomfort or stress , the "left" and "right" digital sensors used to capture stereo images should be properly aligned with each other. For example, the light (or sensing) axes of two digital sensors may be aligned optically or substantially parallel, e.g., differing only by a known or readily determinable horizontal or vertical offset, the horizontal Or vertical offsets are easily corrected by digital editing of captured images. To achieve the desired stereoscopic effect and image fusibility, the horizontal distance between the imaging sensors in a stereoscopic sensor pair is (in some examples) approximately 3.25 cm. Furthermore, there is preferably only a relatively small horizontal or vertical offset between pairs of sen...

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Abstract

The invention reveals the system and method of three -dimensional ruling using automatic focus feed to correct the three -dimensional sensor -pair of the three -dimensional sensor.It is estimated that the three -dimensional depth of objects in the image is estimated from the vision of the objects captured by the image of the image sensor.Find the automatic focus depth of the object from the automatic focus lens position.If the difference between the three -dimensional depth and the depth of the automatic focusing depth is not zero, then the one in the image deforms, and the vision difference is calculated until the three -dimensional depth and automatic automatic automatic automatic and the automatic automatic calculation of the object of the object.Focusing depth is essentially the same.

Description

technical field [0001] Embodiments of the invention relate to imaging devices, and in particular to systems, methods and apparatus to correct misalignment of stereoscopic image sensors. Background technique [0002] Currently, digital imaging capabilities are integrated into a wide range of devices, including digital cameras and mobile phones. Such devices may include the ability to capture stereoscopic "3D" images. Device manufacturers have responded to consumers by introducing devices that integrate digital image processing to support the capture of stereoscopic images with single or multiple digital imaging sensors. A wide range of electronic devices, including mobile wireless communication devices, personal digital assistants (PDAs), personal music systems, digital cameras, digital recording devices, video conferencing systems, etc., can utilize stereoscopic imaging capabilities to provide various capabilities to their users and features. These include stereoscopic im...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/80G06T7/571H04N13/246H04N13/239
CPCG06T7/85G06T7/571H04N13/239H04N13/246
Inventor 维卡斯·拉马钱德兰卡林·米特科夫·阿塔纳索夫鲁本·曼纽尔·维拉尔德
Owner QUALCOMM INC