Image acquisition device
An image acquisition device and image technology, applied in the image field, can solve the problems of low power consumption, poor three-dimensional data quality, low price, etc., and achieve the effect of alleviating the multi-path problem and improving the quality
Inactive Publication Date: 2020-08-07
SHENZHEN GOODIX TECH CO LTD
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However, consumer-grade TOF generally requires low price, small size, and low power consumption. However, under these conditions, the quality of 3D data acquired by TOF is poor, which obviously limits its use in 3D face recognition, photo background blur, and somatosensory games. application effect and user experience
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[0030] The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings.
[0031] Depth measurement or 3D data is increasingly being used in consumer electronics, where typical technologies include binocular (multi) vision solutions, structured light solutions, and time of flight (TOF) solutions.
[0032] The principle of binocular vision is similar to that of human eyes. Two cameras are used to capture images of objects from different directions, and the captured graphics are fused to establish the correspondence between features, and the same space physical point in different images corresponding to the image points to obtain the three-dimensional data of the object.
[0033] Binocular stereo vision acquires three-dimensional information by the principle of triangulation, that is, a triangle is formed between the image planes of two cameras and the measured object. Knowing the positional relationship b...
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The embodiment of the invention discloses an image acquisition device which can improve the quality of acquired three-dimensional data. The image acquisition device comprises: a micro-lens array whichcomprises a plurality of micro-lenses; and a multiple pixel units which are arranged below the micro-lens array, wherein the plurality of pixel units are in one-to-one correspondence with the plurality of micro lenses, one micro lens is used for converging an optical signal returned by an object to one corresponding pixel unit, each pixel unit comprises n pixels, the angles of optical signals received by the pixels at the same relative positions in the plurality of pixel units are the same, n is an integer greater than or equal to 2, the optical signal sensed by each pixel unit in the plurality of pixel units is used for generating a TOF image of an object, the optical signals sensed by the pixels at the same relative positions in the plurality of pixel units are used for generating an image of an object at one visual angle so as to obtain images of at least two visual angles, and the TOF image and the images of the at least two view angles are used for generating target three-dimensional data of the object.
Description
technical field [0001] The embodiments of the present application relate to the image field, and more specifically, relate to an image acquisition device. Background technique [0002] Depth measurement or 3D data is increasingly being used in consumer electronics, where typical technologies include binocular vision solutions, structured light solutions, and time of flight (TOF) solutions. Due to its advantages of no baseline requirements, compact structure, fast speed, and simple algorithm, the TOF solution has become more and more widely used, and has been applied to more and more smart phones. However, consumer-grade TOF generally requires low price, small size, and low power consumption. However, under these conditions, the quality of 3D data acquired by TOF is poor, which obviously limits its use in 3D face recognition, photo background blur, and somatosensory games. application effects and user experience. Contents of the invention [0003] An embodiment of the pre...
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IPC IPC(8): H04N13/204G01S7/4865
CPCG01S7/4865H04N13/204
Inventor 吕萌
Owner SHENZHEN GOODIX TECH CO LTD