Intelligent identification method of three-dimensional coordinates of book in reading and writing scene and application thereof

Abstract

The present invention provides an intelligent identification method of three-dimensional coordinates of a book in a reading and writing scene for a teenager, which can be applied to a fully intelligent myopia prevention apparatus, and application thereof. According to the intelligent apparatus by using the method, whether reading and writing postures of the teenager are correct or not can be determined automatically and accurately under a condition of the intelligent apparatus having no contact with the teenager body in the reading and writing scene. For a depth image obtained by an image sensor, a three-dimensional swept volume defined by a set spatial origin and a boundary is used to scan in order to obtain the three-dimensional coordinates of the book corresponding to the person when he is reading and writing. According to the method of the present invention, a frequency of image information collection is set reasonably, a distance between two arbitrary physical points under a static state or a dynamic state in the reading and writing scene and the three-dimensional coordinates of the book in the reading and writing scene can be learned accurately through central processor calculation, and thus a time length of the teenager being in a reading and writing state and whether the reading and writing postures of the teenager are normal in the reading and writing scene can be further learned.

Description

technical field [0001] The invention relates to a method for identifying three-dimensional coordinates of a physical point in space through an image sensor, in particular to a method for finding the three-dimensional coordinates of a reading object in a reading and writing scene and its application. Background technique [0002] With the continuous advancement of science and technology, various smart products have emerged as the times require. At present, the anti-myopia devices involved in the prevention of juvenile myopia still use traditional mechanical or electronic products, such as: wearing on the head of a teenager while reading or Mechanical parts of the shoulder or electronic parts with ultrasound or infrared as the test medium. [0003] Mechanical components measure the correctness of juvenile reading and writing postures through direct contact with the juvenile's body. The disadvantage is that it increases the physical burden of the wearer, and long-term use is ea...

AI Technical Summary

Problems solved by technology

[0005] At present, there is no contactless, purely intelligent device to prevent juvenile myopia by acquiring images of juvenile reading and writing scenes. The bottleneck of its existence is how to make the central processing unit correctly, effectively and accurately identify the eyes of the reading and writing people in the reading and writing scene. , the book read and written, and / or the spatial location of the tabletop on which the book rests

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