A method and terminal for measuring interpupillary distance
A measurement method and a measurement terminal technology, which are applied in the fields of eye testing equipment, medical science, diagnosis, etc., can solve the problems of low measurement accuracy, failure to meet the requirements of VR glasses pupil distance accuracy, and low measurement efficiency
Active Publication Date: 2022-04-26
HUAWEI DEVICE CO LTD
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Problems solved by technology
[0003] At present, people can directly measure the user's pupillary distance by using rulers, meter sticks, etc. However, this method has low measurement accuracy and is far from meeting the needs of VR glasses for pupillary distance accuracy.
People can also use a pupil distance meter to measure the user's pupil distance. However, the pupil distance meter needs to be operated by professionals, and the user needs to go to an institution or store with a pupil distance meter for measurement. The measurement efficiency is low and it is difficult to implement.
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[0079] Embodiments of the present invention will be described below with reference to the drawings in the embodiments of the present invention.
[0080] The following describes how to obtain the depth information involved in the embodiment of the present invention:
[0081] The first way to obtain depth information:
[0082] see figure 1 , figure 1 It is a schematic diagram of the principle of measuring the pupil distance by a pupil distance measurement terminal provided by an embodiment of the present invention. The pupil distance measurement terminal (also referred to as a terminal in the embodiment of the present invention) may include a camera and a distance measuring device, such as a laser distance measuring device (such as lidar). The terminal can take a first image through the camera, and the first image includes the first pupil and the second pupil of the user under test. At the same time, the terminal can acquire the depth information of the first pupil and / or the...
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The embodiment of the present invention discloses a pupil distance measurement method and a terminal. The method includes: the terminal takes a first image, and the first image includes the first pupil and the second pupil of the user under test; the terminal acquires the first pupil Depth information of a pupil and / or the second pupil; the terminal calculates the first pupil and the second pupil according to the depth information and the pixel distance between the first pupil and the second pupil in the first image The actual distance between the second pupils. By implementing the embodiment of the present invention, the interpupillary distance can be measured simply and conveniently with high measurement accuracy.
Description
technical field [0001] The present invention relates to the technical field of terminals, in particular to a method for measuring interpupillary distance and a terminal. Background technique [0002] A virtual reality (Virtual Reality, VR) head-mounted display device, for example, VR glasses is a next-generation human-computer interaction terminal device, and the matching accuracy of the pupil distance of the VR glasses and the user's pupil distance can directly affect the user experience of the wearer. When the pupillary distance of the VR glasses does not match that of the user, it may cause dizziness to the user or a change in the magnification of the displayed content. In order to better match the VR glasses to the wearer, it is necessary to accurately measure the user's pupillary distance. [0003] At present, people can directly measure the user's pupillary distance by using rulers, meter sticks, etc. However, this method has low measurement accuracy and is far from m...
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IPC IPC(8): A61B3/11
CPCA61B3/111
Inventor 王超姜帆林晓龙洪松涛张双垒赵晓林
Owner HUAWEI DEVICE CO LTD