A method and device for measuring three-dimensional coordinates of a point light source
A technology of three-dimensional coordinates and measurement methods, which is applied in the field of point light source three-dimensional coordinate measurement device and point light source three-dimensional coordinate measurement, can solve the problems of large measurement influence and large random error, etc., achieve small random error, simple structure, and ensure privacy Effect
Active Publication Date: 2021-03-30
BEIJING INSTITUTE OF TECHNOLOGYGY
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[0004] The defect of imaging through the scattering medium is: under the condition that the point light source is located in the scattering medium, the scattering medium has a great influence on the three-dimensional coordinate measurement of the point light source, and the random error generated during the measurement process is very large
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[0021] Deep learning is a new research direction in the field of machine learning, which is introduced into machine learning to make it closer to the original goal - artificial intelligence. Deep learning is to learn the internal laws and representation levels of sample data. The information obtained during the learning process is of great help to the interpretation of data such as text, images and sounds. Its ultimate goal is to enable machines to have the ability to analyze and learn like humans, and to be able to recognize data such as text, images, and sounds. Deep learning has achieved many results in search technology, data mining, machine learning, machine translation, natural language processing, multimedia learning, speech, recommendation and personalization technology, and other related fields. Deep learning enables machines to imitate human activities such as audio-visual and thinking, and solves many complex pattern recognition problems, making great progress in ar...
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The invention relates to a point light source three-dimensional coordinate measurement method and device which has the advantages of passive measurement, simple structure, small random error and capacity of real-time tracking. The point light source three-dimensional coordinate measurement method comprises the steps of: (1) establishing a light field imaging system; (2) establishing a deep learning framework; (3) initializing the deep learning framework, determining and applying a node weight of each neural network in the deep learning framework and enabling each neural network in the deep learning framework to reach an available state; (4) acquiring a light field of a target point light source by the light field imaging system; (5) extracting characteristic information of the light fieldof the target point light source, wherein the characteristic information means related information which is included in the light field of the target point light source and required for carrying out point light source three-dimensional coordinate measurement; (6) inputting the characteristic information of the light field of the target point light source into the deep learning framework; and (7) calculating three-dimensional coordinates of the point light source by the deep learning framework.
Description
technical field [0001] The invention relates to the technical field of photoelectric measurement, in particular to a method for measuring three-dimensional coordinates of a point light source and a device for measuring three-dimensional coordinates of a point light source. Background technique [0002] Scattering medium refers to a type of medium that has a significant scattering effect when light passes through. For traditional optical imaging systems, the existence of scattering medium will make the image of the target blurred, which is not conducive to the observation of the target. Typical scattering media are clouds, fog, smoke, ground glass and cytoplasm. [0003] Imaging through scattering media has always been a major problem in the field of photoelectric measurement, but imaging through scattering media has great application value in the fields of biomedicine, remote sensing, and security. Spatial positioning of point light sources in scattering media is a typical ...
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IPC IPC(8): G01B11/00G06N3/02
CPCG01B11/005G06N3/02
Inventor 胡摇袁诗翥郝群曹睿
Owner BEIJING INSTITUTE OF TECHNOLOGYGY