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Depth calculation method and system based on flight time, and storage medium

A time-of-flight and depth calculation technology, applied in the field of image processing, can solve the problems of low efficiency of depth measurement and achieve the effect of fast calculation speed and accurate depth value

Active Publication Date: 2021-08-24
SHENZHEN ORBBEC CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The embodiment of the present application provides a time-of-flight-based depth calculation method, system, and storage medium, which can solve the problem of low depth measurement efficiency

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  • Depth calculation method and system based on flight time, and storage medium
  • Depth calculation method and system based on flight time, and storage medium
  • Depth calculation method and system based on flight time, and storage medium

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Embodiment Construction

[0027] In the following description, specific details such as specific system structures, techniques such as specific system structures, and techniques are proposed for explanation of specific details such as specific system structures, and techniques. However, it will be apparent to those skilled in the art that the present application can be implemented in other embodiments without these specific details. In other cases, detailed description of well-known systems, devices, circuits, and methods is omitted to prevent unnecessary details to prevent the presentation.

[0028] It should be understood that when used in the present application and the appended claims, the term "comprises" indicating the presence of the description, the existence of the components, but does not exclude one or more other Features, integral, steps, operations, elements, components, and / or their set presence or addition.

[0029] It should also be understood that terms "and / or" as used in the present ...

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Abstract

The invention is suitable for the technical field of image processing, and provides a depth calculation method and system based on flight time and a storage medium, and the method comprises the steps: obtaining a phase image, and obtaining a difference ratio of charge signals corresponding to reflection signals collected by a signal collection module at different times based on the phase image; when the difference value ratio of the charge signals is greater than or equal to a preset threshold value, obtaining a first phase based on a phase transformation model and the difference value ratio of the charge signals; calculating a depth value of the target area based on the first phase. When the difference value ratio of the charge signals is greater than or equal to the preset threshold value, the phase conversion model is adopted to calculate the phase, so that the obtained depth value between the target area and the signal acquisition module can be ensured to be more accurate, and the calculation speed is higher.

Description

Technical field [0001] The present application belongs to the field of image processing, and more particularly to a depth calculation method, system, and storage medium based on flight time. Background [0002] As the TOF (TIME-OF-Flight, flight time) is increasingly mature, the method of obtaining a depth image is generally by acquiring a plurality of phase diagrams, calculating its anti-triangular function according to the difference of multiple phase diagrams, and then achieveing ​​truly The phase is obtained from the phase to obtain a depth image. However, the anti-triangular function is a non-linear function, and can be complicated by checking the closer value and matches the iterative algorithm, the calculation process is complicated. When calculating the phase, it is required to find a table, and the lookup table will consume memory, resulting in performance. Reduce, unable to process multiple results in parallel, and at particular time consumption when the floating point ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00G06T7/136
CPCG06T7/0002G06T7/136G06T2207/10028G01S17/36G01S7/4912G01S17/894G01S7/4914G01S7/4915G06T7/521G01S7/4866G06T2200/28
Inventor 余洪涛蒙敏荣谷涛
Owner SHENZHEN ORBBEC CO LTD
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