Parameter adjustment method, device and electronic device for depth sensor
A technology of depth sensor and parameter adjustment, applied in measurement devices, instruments, televisions, etc., can solve the problem of low quality of depth map
Active Publication Date: 2021-07-06
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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However, the hardware settings of Time of Flight (TOF) cameras currently use fixed parameters for different scenarios, such as operating at high or low frequencies, and the TOF power is a fixed value, resulting in lower quality of the acquired depth map
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[0027] Embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary, and are intended to explain the present application, and should not be construed as limiting the present application.
[0028] At present, the processing flow of the raw data of the single-frequency TOF camera mainly includes the following steps:
[0029] Step 1, convert the original data into i, q data, where i, q represent the collected charges, which are the sine and cosine values of the delay phase angle corresponding to the distance;
[0030] Step 2, convert i, q into confidence p0(|i|+|q|) and phase difference c0(arctan(i / q));
[0031] Step 3, perform error correction on the confidence p0 to obtain p_cor;
[0032] Step 4, determine ...
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The present application proposes a parameter adjustment method, device, and electronic equipment of a depth sensor, wherein the method includes: obtaining a depth map collected by the depth sensor; wherein, each pixel unit in the depth map has a corresponding depth and depth confidence; The pixel units in the depth map are counted to obtain the distribution of depth and the distribution of confidence; among them, the distribution of depth is used to indicate the proportion of pixel units in each depth interval; the distribution of confidence is used to indicate the distribution of each confidence interval. The proportion of pixel units; adjust the operating parameters of the depth sensor according to the distribution of depth and the distribution of confidence. Thus, according to the depth distribution and the distribution of confidence in the depth map, the operating parameters of the depth sensor are determined, which avoids the problem of the collected depth map when the depth sensor uses fixed operating parameters to collect the depth map in different scenarios in the prior art. Low quality technical issues, thus ensuring the quality of the output depth map.
Description
technical field [0001] The present application relates to the technical field of electronic equipment, in particular to a parameter adjustment method and device of a depth sensor and electronic equipment. Background technique [0002] Currently, in order to improve the quality of the depth map, the depth map can be filtered. In the prior art, the depth map is filtered through filtering algorithms such as bilateral filtering, anisotropic filtering, and filtering based on a fixed threshold. [0003] However, in actual application scenarios, there are also different requirements for the depth map. For example, the edge of the hand needs to be clearly visible in the gesture scene, and the timely positioning and map construction (Simultaneous Localization And Mapping, SLAM) scene needs to remove abnormal depth values as much as possible, etc. . However, the hardware settings of the Time of Flight (TOF) camera currently use fixed parameters for different scenarios, such as ope...
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IPC IPC(8): G06T7/55G06K9/32
CPCG06T7/55G06T2207/10028G06T2207/10048G06T2207/10024G06T2207/20032G06T2207/20028G06V10/25G01S17/894G01S17/42G01S17/36G01S7/4918G01S7/4911G06T7/0004G06T2207/30168H04N23/65G06T7/80G06T7/50G06T2207/20076H04N23/80
Inventor 康健
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD