Method and device for estimating the optical power of corrective lenses in a pair of eyeglasses worn by a spectator

A viewer and lens technology, which is applied in the field of correcting the diopter of lenses, can solve the problem that the cost cannot be widely deployed, and achieve the effect of easy use

Active Publication Date: 2013-06-19
INTERDIGITAL CE PATENT HLDG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, such measuring instruments cannot be widely deployed

Method used

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  • Method and device for estimating the optical power of corrective lenses in a pair of eyeglasses worn by a spectator
  • Method and device for estimating the optical power of corrective lenses in a pair of eyeglasses worn by a spectator
  • Method and device for estimating the optical power of corrective lenses in a pair of eyeglasses worn by a spectator

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Embodiment Construction

[0021] The present invention is suitable for farsighted or nearsighted viewers. In the case of farsightedness, corrective lenses are converging lenses that enlarge the eyes when viewing the viewer from the front. For myopia lenses, the corrective lenses are diverging lenses, and the eyes appear smaller with glasses than without them.

[0022] Such as figure 2 As shown, the method of estimating the diopter of a corrective lens in a pair of spectacles worn by a spectator is characterized in that it comprises a step 1 of acquiring this Two successive images Ia and Is of the viewer's face. One of these images, Ia, was taken while the viewer was wearing glasses, and the other Is of these images was taken when the viewer was not wearing glasses.

[0023] In fact, an acquisition means like a camera can be mounted or integrated on or in a viewing device like a screen intended to watch the media stream. It can also be installed on a video signal receiving and decoding device like ...

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Abstract

This invention relates to a method for estimating the optical power of corrective lenses in a pair a eyeglasses worn by a spectator, characterized in that it comprises the following steps: - acquire two consecutive images of this spectator's face located in front of a means for acquiring these two images, one of these images being acquired with eyeglasses and the other without, - calibrate one of the two acquired images with respect to the other, - identify the position of the iris of each eye in each image, - evaluate the size magnification or size reduction of each imaged iris, and - estimate the optical power of the corrective lenses based on the evaluated magnification or reduction.

Description

technical field [0001] The present invention relates to a method of estimating the optical power of a corrective lens in a pair of spectacles worn by a viewer. Background technique [0002] The present invention is in the field of viewing media streams on a screen. In this area, it may be necessary to adapt the processing of media streams viewed on these screens according to data about the power of corrective lenses in a pair of spectacles worn by the viewer. Thus, for example, it is possible to adjust the depth-of-field effect of a media stream viewed on a 3D screen through the corrected viewer's view, so as not to disturb the viewer while viewing the media stream. [0003] The problem to be solved by the present invention is to obtain the diopter of a corrective lens in a pair of spectacles worn by the viewer, thus being able to adjust the processing of the media stream to be viewed on the screen. [0004] A first approach to obtaining data on such diopters is to ask the...

Claims

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Application Information

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IPC IPC(8): G02C13/00G06K9/00
CPCG01M11/0228G06V40/193A61B3/09G01J1/02
Inventor L.布朗德S.蒂鲍德D.多延
Owner INTERDIGITAL CE PATENT HLDG
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