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Method and apparatus for regulating power

A technology for adjusting power and power, applied in the multimedia field, can solve problems such as overexposure, inability to determine the exact position of each point, underexposure, etc., to achieve accurate acquisition and improve accuracy

Active Publication Date: 2018-11-09
LENOVO (BEIJING) LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] When the projection power of the depth image acquisition device is constant, when the distance between the depth image acquisition device and the object is too close, the points in the image will be overexposed and cannot be determined because the brightness of the depth detection map on the object in the captured image is too high The exact position of each point, when the distance is too far, because the brightness of the depth detection map on the object in the captured image is too low, that is, underexposure, the exact position of each point cannot be determined. Therefore, according to the captured image, it cannot be accurately obtained The distance between the object and the depth image acquisition device reduces the accuracy of the depth image acquisition device

Method used

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  • Method and apparatus for regulating power

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Embodiment 1

[0043] Embodiments of the present invention provide a method for adjusting power, such as figure 1 As shown, the processing flow of the method may include the following steps:

[0044] Step 101, using an image acquisition device to acquire a first detection value within a target detection range.

[0045] Step 102: Determine the first projection power corresponding to the first detection value according to the pre-stored correspondence between the detection value and the projection power.

[0046] Step 103, controlling the image acquisition device to project the detection image with a first projection power.

[0047] In the embodiment of the present invention, the first detection value within the target detection range is acquired through the image acquisition device, and the first projection power corresponding to the first detection value is determined according to the pre-stored correspondence between the detection value and the projection power, and the image acquisition i...

Embodiment 2

[0049] An embodiment of the present invention provides a method for adjusting power, the method is applied to an electronic device, and the electronic device includes a depth image acquisition device. Wherein, the electronic device may be a device capable of acquiring depth images, such as a depth camera.

[0050] The following will combine specific implementation methods, figure 1 The processing flow shown is described in detail, and the content can be as follows:

[0051] Step 101, using an image acquisition device to acquire a first detection value within a target detection range.

[0052] Wherein, the first detection value may be the value of any parameter that can be detected by the image acquisition device, and the parameter may be the brightness within a certain range, the distance of a specified target corresponding to a certain range, and the like.

[0053] In implementation, a target detection range can be preset, and the electronic device can detect the brightness...

Embodiment 3

[0105] Based on the same technical idea, the embodiment of the present invention also provides a device for adjusting power, such as figure 2 As shown, the device includes:

[0106] An acquisition module 210, configured to acquire a first detection value within the target detection range through an image acquisition device;

[0107] A determination module 220, configured to determine the first projection power corresponding to the first detection value according to the pre-stored correspondence between the detection value and the projection power;

[0108] The control module 230 is configured to control the image acquisition device to project the detection map with the first projection power.

[0109] Optionally, acquire module 210 for:

[0110] Obtaining the first brightness of the target detection range through an image acquisition device;

[0111] Determination module 220, for:

[0112] The first projection power corresponding to the first brightness is determined accord...

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Abstract

The invention discloses a method and device for adjusting power and belongs to the technical field of multimedia. The method is applied to an electronic device including a depth image acquiring device, and comprises steps of: acquiring a first detection value within a target detection range by using the depth image acquiring device; determining first projection power corresponding to the first detection value according to a pre-stored corresponding relation between detection values and projection power; and controlling the depth image acquiring device to project a depth detection map at the first projection power. The method and the device may increase the accuracy of the depth image acquiring device.

Description

technical field [0001] The invention relates to the field of multimedia technology, in particular to a method and device for adjusting power. Background technique [0002] Currently, a depth image acquisition device (Depth Camera) is used to obtain the distance between a point on an object within the detection range (or shooting range) and the depth image acquisition device. This technology has expanded from the industrial field to the consumer field, and there are already Practical products such as Kinect (a somatosensory peripheral released by Microsoft). [0003] In related technologies, the depth image acquisition device can store a reference image in advance. Specifically, the depth image acquisition device projects a depth detection map (generally a dot matrix image) to a reference plane at a preset distance through infrared rays, and shoots it through an infrared camera. The image formed by projecting the depth detection map onto the reference plane, that is, the ref...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N13/204H04N5/232G01B11/14
Inventor 王竞
Owner LENOVO (BEIJING) LTD
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