CN110087057A - A kind of depth image acquisition method and device of projector - Google Patents
A kind of depth image acquisition method and device of projector Download PDFInfo
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- CN110087057A CN110087057A CN201910181857.0A CN201910181857A CN110087057A CN 110087057 A CN110087057 A CN 110087057A CN 201910181857 A CN201910181857 A CN 201910181857A CN 110087057 A CN110087057 A CN 110087057A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/22—Measuring arrangements characterised by the use of optical techniques for measuring depth
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/20—Image signal generators
- H04N13/271—Image signal generators wherein the generated image signals comprise depth maps or disparity maps
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
- H04N17/004—Diagnosis, testing or measuring for television systems or their details for digital television systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3191—Testing thereof
Abstract
The embodiment of the present invention provides the depth image acquisition method and device of a kind of projector, this method comprises: receiving the m depth signal for m pixel unit feedback；Receive the n-th depth signal for the n-th pixel unit feedback；Wherein, the quantity for the pixel unit being spaced between the m pixel unit and n-th pixel unit is k；The m depth signal and multiple n-th depth signals received in image is shown based on first frame, generates the first low resolution depth image；Wherein, m, n, k >=1.Through the above technical solution, make it possible to receive the time span of the depth signal of feedback, it shows that the time extends to K+1 pixel unit and shows the time by an original pixel unit, can be realized the measurement of the depth value to the display image with larger depth value, thus the depth image needed for obtaining.
Description
Technical field
The present invention relates to technical field of image processing more particularly to the depth image acquisition methods and dress of a kind of projector
It sets.
Background technique
With the development of projection touch technology, show that the resolution ratio of image is higher and higher by what projector generated,
And frame per second is also higher and higher.
In the prior art, increase an infrared laser in laser scanning projection's instrument (Laser beam scam, LBS),
The light runing time that each pixel unit can be recorded by point by infrared laser, can further calculate each pixel
The depth information of unit, to obtain a secondary corresponding depth image.In practical applications, light propagation speed is certain, to
Show that resolution ratio and the frame per second of image are higher, the display time of each pixel unit is shorter.When based on the display of single pixel unit
Between when carrying out depth measurement, since available time of measuring is too short, lead to not obtain the depth image with larger depth value.
Based on this, a kind of acquisition projector is needed to show corresponding depth image when image has larger depth value
Scheme.
Summary of the invention
In view of this, the embodiment of the present invention provides the depth image acquisition method and device of a kind of projector, can obtain
Projector shows the scheme of corresponding depth image when image has larger depth value.
In a first aspect, the embodiment of the present invention provides a kind of depth image acquisition method of projector, this method comprises:
Receive the xth depth signal for m pixel unit feedback；
Receive the y depth signal for the n-th pixel unit feedback；Wherein, the m pixel unit and n-th picture
The quantity for the pixel unit being spaced between plain unit be k, between the xth depth signal and the y depth signal between
Every the depth signal quantity be z；
The xth depth signal and multiple y depth signals received in image is shown based on first frame, is generated
First low resolution depth image；Wherein, m, n, x, y, k, z are all larger than equal to 1, and k is greater than z.
Second aspect, the embodiment of the present invention provide a kind of integrated phase shift range finding of projector, which includes:
Receiving module, for receiving the xth depth signal for being directed to m pixel unit feedback；It receives and is directed to the n-th pixel unit
The y depth signal of feedback；Wherein, the pixel unit being spaced between the m pixel unit and n-th pixel unit
Quantity be k, the quantity of the depth signal being spaced between the xth depth signal and y depth signal is z；
Depth image generation module shows the xth depth signal received in image and multiple institutes based on first frame
Y depth signal is stated, the first low resolution depth image is generated；Wherein, m, n, x, y, k are all larger than equal to 1, and k is greater than z.
The depth image acquisition method and device of projector provided in an embodiment of the present invention show image based on same frame,
The depth signal for partially specifying m pixel unit and the n-th pixel unit in display image by obtaining, is total to by multiple depth signals
With composition low resolution depth image；It should be noted that between m pixel unit mentioned here and the n-th pixel unit
Every the quantity of pixel unit be k (k >=1), can ensure that time interval between two adjacent depth signals is K+1 in this way
A pixel unit shows the summation of time.Through the above technical solutions, the time for making it possible to receive the depth signal of feedback is long
Degree shows that the time extends to K+1 pixel unit and shows the time by an original pixel unit, can be realized to larger depth
The measurement of the depth value of the display image of angle value, thus the depth image needed for obtaining.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is a kind of flow diagram of the depth image acquisition method of projector provided in an embodiment of the present invention；
Fig. 2 is the first low resolution depth image generating process schematic diagram provided in an embodiment of the present invention；
Fig. 3 is the second low resolution depth image generating process schematic diagram provided in an embodiment of the present invention；
Fig. 4 is full depth image generating process schematic diagram provided in an embodiment of the present invention；
Fig. 5 is the structural schematic diagram of the integrated phase shift range finding of projector provided in an embodiment of the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
The term used in embodiments of the present invention is only to be not intended to be limiting merely for for the purpose of describing particular embodiments
The present invention.In the embodiment of the present invention and the "an" of singular used in the attached claims, " described " and "the"
It is also intended to including most forms, unless the context clearly indicates other meaning, " a variety of " generally comprise at least two, but not
It excludes to include at least one situation.
It should be appreciated that term "and/or" used herein is only a kind of incidence relation for describing affiliated partner, indicate
There may be three kinds of relationships, for example, A and/or B, can indicate: individualism A, exist simultaneously A and B, individualism B these three
Situation.In addition, character "/" herein, typicallys represent the relationship that forward-backward correlation object is a kind of "or".
Depending on context, word as used in this " if ", " if " can be construed to " ... when " or
" when ... " or " in response to determination " or " in response to detection ".Similarly, context is depended on, phrase " if it is determined that " or " such as
Fruit detection (condition or event of statement) " can be construed to " when determining " or " in response to determination " or " when detection (statement
Condition or event) when " or " in response to detection (condition or event of statement) ".
It should also be noted that, the terms "include", "comprise" or its any other variant are intended to nonexcludability
Include, so that commodity or system including a series of elements not only include those elements, but also including not clear
The other element listed, or further include for this commodity or the intrinsic element of system.In the feelings not limited more
Under condition, the element that is limited by sentence "including a ...", it is not excluded that in the commodity or system for including the element also
There are other identical elements.
In projector, increase an infrared laser.The infrared light of the infrared laser can be with the projection of projector
Light emits simultaneously, each pixel unit depth value can be measured using infrared light, so as to obtain entire depth image.Tool
For body, the depth value of each pixel unit was calculated according to the flight time of infrared light.It should be noted that needle
The shooting sequence of the infrared light of each pixel unit to be consistent with reception sequence, in other words, there can be no rear transmittings
Infrared light avoids detection signal sequence mistake earlier than the case where first transmitting infrared light returns.In some cases, if projection away from
From distant, the two-way time of infrared light also can accordingly increase, for this reason, it may be necessary to measurement of the extension pin to pixel unit depth measurement
In the period, for example, 4, interval pixel carries out one-shot measurement, in other words, every four pixel units are one group, in order to make it easy to understand,
Assume that m is 1, n 5 in citing below, k 4, the display cycle of single pixel unit is t.Infrared laser packet mentioned here
Include infrared emission unit and infrared receiver.
In addition, the step timing in following each method embodiments is only a kind of citing, rather than considered critical.
The embodiment of the present invention provides a kind of projector depth image acquisition method, mentions as shown in Figure 1 for the embodiment of the present invention
A kind of flow diagram of the projector depth image acquisition method supplied.Specific steps include:
101: receiving the xth depth signal for m pixel unit feedback.
As mentioned before, it is assumed that m, x are 1, while the first pixel unit of projector projects, in infrared laser
Infrared emission unit also issues the infrared light for the first pixel unit.The first pixel unit can be presented when infrared light touches
After the object of content, infrared light is returned, and is received by infrared receiver, obtains believing for the first depth of the first pixel unit
Number.First depth signal indicates the depth value of the first pixel unit.
102: receiving the y depth signal for the n-th pixel unit feedback；Wherein, the m pixel unit and described the
The quantity for the pixel unit being spaced between n-pixel unit is k, between the xth depth signal and the y depth signal
The quantity of the depth signal at interval is z.
As mentioned before, it is assumed that n 5, k 4, y 2, while five pixel unit of projector projects, infrared laser
Infrared emission unit in device also issues the infrared light for the second pixel unit.The 5th picture can be presented when infrared light touches
After the object of plain location contents, infrared light is returned, and is received by infrared receiver, and obtain being directed to the 5th pixel unit second is deep
Spend signal.Second depth signal indicates the depth value of the 5th pixel unit.
103: the xth depth signal and multiple y depth signals received in image is shown based on first frame,
Generate the first low resolution depth image；Wherein, m, n, x, y, k, z are all larger than equal to 1, and k is greater than z.
When generating depth image, according to the sequence of the depth signal received and corresponding depth value, it is low to generate first
Depth of resolution image.According to embodiment described previously, it is spaced 4 pixel units and acquires a depth value, obtain as shown in Figure 2
Low resolution depth image, each pixel unit of the first low resolution depth image correspond to first frame show image in
First pixel unit, the 5th pixel unit, the 9th pixel unit etc..Low resolution depth image, it can be understood as depth map
Resolution ratio of the resolution ratio of picture lower than display image；In the present embodiment, the resolution ratio of the first low resolution depth image is the
One frame shows a quarter of the resolution ratio of image.
Depth signal x and y mentioned here is that same frame is shown in image, for different pixels unit in different moments
Received depth signal.If x and y are two adjacent depth signals, z 1；Space-number between corresponding pixel unit m and n
It measures k and is greater than 1.
It should be noted that showing in image that m pixel unit is presented prior to the n-th pixel unit in same frame.Xth is deep
Signal is spent to return prior to y depth signal.
In one or more embodiment of the invention, the xth depth letter received for m pixel unit feedback
Number, can specifically include: in the first pulse time, triggering is directed to the xth depth signal of the m pixel unit；Referring to
It fixes time in section, receives the xth depth signal fed back to.
For example, while triggering projects the first pixel unit, triggering infrared laser transmitting is infrared in the first pulse time
Light, so as to receive the first depth signal of expression the first pixel unit depth value of feedback.It should be noted that each
Infrared light is to maintain synchronous with the projection triggering moment of pixel unit.
Designated time period mentioned here, it can be understood as the triggering period of infrared light, in this example, it is assumed that each
The display cycle of pixel unit is t, and every k pixel unit triggers an infrared light.So, triggering cycle T=t* of infrared light
k。
In one or more embodiment of the invention, the y depth letter received for the n-th pixel unit feedback
Number, can specifically include: in the second pulse time, triggering is directed to the y depth signal of n-th pixel unit；Referring to
It fixes time in section, receives the y depth signal fed back to；Between first pulse time and second pulse time
Time interval be k pixel unit display time.
It should be noted that the second pulse time lags behind the first pulse time.If the first pulse time and the second pulse
Moment is adjacent moment, then corresponding depth signal x and y is also two adjacent infrared signals.If the first pulse time with
Between second pulse time also between be separated with multiple pulses, then between depth signal x and depth signal y also between be separated with corresponding number
Depth signal.
In one or more embodiment of the invention, the first frame shows that the resolution ratio of image is described first low
K times of the resolution ratio of depth of resolution image.
It can be seen that as shown in Figure 2, it is assumed that the cycle T of depth signal is k times of the display cycle t of pixel unit, changes speech
It, obtains the depth value of 1/k pixel unit in display image (assuming that resolution ratio is W*H), and the depth image of generation is differentiated
Rate is (W/k) * H.
Through the above technical solutions, by the acquisition cycle stretch-out of the depth value of pixel unit each in depth image to pixel list
K times of first display cycle can obtain more remote depth image.But the resolution ratio of depth image decreases.If thinking
The depth image of high-resolution is obtained, multiple low resolution depth images can be merged, concrete scheme is real as follows
It applies described in example:
In order to obtain the depth image of high-resolution, after generating the first low resolution depth image, can also wrap
It includes: receiving the xth depth signal for m+a pixel unit feedback；Receive the y depth for the n-th+a pixel unit feedback
Signal；Wherein, the quantity for the pixel unit being spaced between the m+a pixel unit and the n-th+a pixel unit is
K shows the xth depth signal and multiple y depth signals received in image based on a+1 frame, generates a+1
Low resolution depth image；Wherein, k >=a >=1.
As mentioned before, it is assumed that m 1, a 1, n 5, x 1, y 2, k 4.Showing that image obtains based on first frame
After obtaining corresponding first low resolution depth image, further, then the second low resolution depth image is obtained.Further
Ground successively obtains third low resolution depth image, the 4th low resolution depth image (specifically obtains low according to above-mentioned steps
The quantity of depth of resolution image, is determined by K).Specifically, the first depth letter for the second pixel unit feedback is received
Number, then, receive the second depth signal for the 6th pixel unit feedback.It is deep to generate the second low resolution as shown in Figure 3
Spend image, depth image pixel unit therein corresponds to second display the second pixel unit of image, the 6th pixel unit, the
Ten pixel units etc..
In one or more embodiment of the invention, the xth depth received for m+a pixel unit feedback
Signal can specifically include: in third pulse time, triggering is directed to the xth depth signal of the m+a pixel unit；
At the appointed time in section, the xth depth signal fed back to is received.
It should be noted that third pulse time mentioned here and previously described second pulse time be not it is continuous or
It is the different moments in different frame picture at the time of adjacent.
In one or more embodiment of the invention, the y depth received for the n-th+a pixel unit feedback
Signal can specifically include: in the 4th pulse time, triggering is directed to the y depth signal of the n-th+a pixel unit；
At the appointed time in section, the y depth signal fed back to is received；The third pulse time and the 4th pulse time
Between time interval be k pixel unit display time.
4th pulse time mentioned here lags behind third pulse time, if third pulse time and the 4th pulse time
For adjacent moment, then corresponding depth signal x and y is also two adjacent infrared signals.If third pulse time and the 4th
Between pulse time also between be separated with multiple pulses, then between depth signal x and depth signal y also between be separated with the depth of corresponding number
Signal.
In one or more embodiment of the invention, the a+1 frame shows that the resolution ratio of image is the a+1
K times of the resolution ratio of low resolution depth image.
It can be seen that as shown in Figure 3, it is assumed that the cycle T of depth signal is k times of the display cycle t of pixel unit, changes speech
It, obtains the depth value of 1/k pixel unit in display image (assuming that resolution ratio is W*H), and the depth image of generation is differentiated
Rate is (W/k) * H.
In one or more embodiment of the invention, it is based on the first low resolution depth image and k-1 institute
A+1 low resolution depth image is stated, full depth image is generated；Wherein, the first frame shows that image and/or a frame are shown
The resolution ratio of image is identical as the resolution ratio of the full depth image.
As can be seen from the foregoing, it is assumed that K 4, then, by by the first low resolution depth image, the second low resolution
Depth image, third low resolution depth image and the 4th low resolution depth image are combined, and full depth map can be generated
Picture.As shown in figure 4, generating a full depth image by aforementioned four low resolution depth image.The full depth image and display
Image resolution ratio having the same, is all W*H.Because the full depth image is collectively formed by 4 (being determined by k) frame images, because
This, the frame per second for generating depth image accordingly reduces, and is reduced to a quarter (or k/mono-) of original frame per second.
Based on same thinking, the embodiment of the present invention also provides a kind of integrated phase shift range finding of projector, such as Fig. 5 institute
Show, which includes:
Receiving module 51, for receiving the xth depth signal for being directed to m pixel unit feedback；It receives and is directed to the n-th pixel list
The y depth signal of member feedback；Wherein, the pixel list being spaced between the m pixel unit and n-th pixel unit
The quantity of member is k, and the quantity for the depth signal being spaced between the xth depth signal and y depth signal is z；
Depth image generation module 52 shows in image the xth depth signal that receives and multiple based on first frame
The y depth signal generates the first low resolution depth image；Wherein, m, n, x, y, k are all larger than equal to 1, and k is greater than z.
Further, receiving module 51, in first pulse time, triggering is described for the m pixel unit
Xth depth signal；
At the appointed time in section, the xth depth signal fed back to is received.
Further, receiving module 51, in second pulse time, triggering is described for n-th pixel unit
Y depth signal；
At the appointed time in section, the y depth signal fed back to is received；
When time interval between first pulse time and second pulse time is k pixel unit display
Between.
Further, the first frame shows that the resolution ratio of image is the resolution ratio of the first low resolution depth image
K times.
Further, receiving module 51, for receiving the xth depth signal for being directed to m+a pixel unit feedback；
Receive the y depth signal for the n-th+a pixel unit feedback；Wherein, the m+a pixel unit and described the
The quantity for the pixel unit being spaced between n+a pixel unit is k,
The xth depth signal and multiple y depth signals received in image is shown based on a+1 frame, it is raw
At a+1 low resolution depth image；Wherein, k >=a >=1.
Further, receiving module 51, in the third pulse time, triggering is directed to the institute of the m+a pixel unit
State xth depth signal；
At the appointed time in section, the xth depth signal fed back to is received.
Further, receiving module 51, in the 4th pulse time, triggering is directed to the institute of the n-th+a pixel unit
State y depth signal；
At the appointed time in section, the y depth signal fed back to is received；
When time interval between the third pulse time and the 4th pulse time is k pixel unit display
Between.
Further, the a+1 frame shows that the resolution ratio of image is the resolution of the a+1 low resolution depth image
K times of rate.
Further, depth image generation module 52, based on the first low resolution depth image and k-1 described the
A+1 low resolution depth image, generates full depth image；Wherein, the first frame shows that image and/or a frame show image
Resolution ratio it is identical as the resolution ratio of the full depth image.
The apparatus embodiments described above are merely exemplary, wherein described, unit can as illustrated by the separation member
It is physically separated with being or may not be, component shown as a unit may or may not be physics list
Member, it can it is in one place, or may be distributed over multiple network units.It can be selected according to the actual needs
In some or all of the modules achieve the purpose of the solution of this embodiment.Those of ordinary skill in the art are not paying creativeness
Labour in the case where, it can understand and implement.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can
It is realized by the mode of required general hardware platform is added, naturally it is also possible to which reality is come in conjunction with by way of hardware and software
It is existing.Based on this understanding, substantially the part that contributes to existing technology can be to calculate in other words for above-mentioned technical proposal
The form of machine product embodies, and it wherein includes the meter of computer usable program code that the present invention, which can be used in one or more,
The computer journey implemented in calculation machine usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.)
The form of sequence product.
The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
General purpose computer, special purpose computer, Embedded Processor or other programmable coordinates are instructed to determine the processor of equipment to produce
A raw machine, so that being generated by the instruction that computer or other programmable coordinates determine that the processor of equipment executes for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable coordinates determine equipment with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions can also be loaded into computer or other programmable coordinates determine in equipment, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
In a typical configuration, calculating equipment includes one or more processors (CPU), input/output interface, net
Network interface and memory.
Memory may include the non-volatile memory in computer-readable medium, random access memory (RAM) and/or
The forms such as Nonvolatile memory, such as read-only memory (ROM) or flash memory (flash RAM).Memory is computer-readable medium
Example.
Computer-readable medium includes permanent and non-permanent, removable and non-removable media can be by any method
Or technology come realize information store.Information can be computer readable instructions, data structure, the module of program or other data.
The example of the storage medium of computer includes, but are not limited to phase change memory (PRAM), static random access memory (SRAM), moves
State random access memory (DRAM), other kinds of random access memory (RAM), read-only memory (ROM), electric erasable
Programmable read only memory (EEPROM), flash memory or other memory techniques, read-only disc read only memory (CD-ROM) (CD-ROM),
Digital versatile disc (DVD) or other optical storage, magnetic cassettes, tape magnetic disk storage or other magnetic storage devices
Or any other non-transmission medium, can be used for storage can be accessed by a computing device information.As defined in this article, it calculates
Machine readable medium does not include temporary computer readable media (transitory media), such as the data-signal and carrier wave of modulation.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (10)
1. a kind of depth image acquisition method of projector characterized by comprising
Receive the xth depth signal for m pixel unit feedback；
Receive the y depth signal for the n-th pixel unit feedback；Wherein, the m pixel unit and the n-th pixel list
The quantity for the pixel unit being spaced between member is k, is spaced between the xth depth signal and the y depth signal
The quantity of the depth signal is z；
The xth depth signal and multiple y depth signals received in image is shown based on first frame, generates first
Low resolution depth image；Wherein, m, n, x, y, k, z are all larger than equal to 1, and k is greater than z.
2. the method according to claim 1, wherein the xth depth received for m pixel unit feedback
Signal, comprising:
In the first pulse time, triggering is directed to the xth depth signal of the m pixel unit；
At the appointed time in section, the xth depth signal fed back to is received.
3. according to the method described in claim 2, it is characterized in that, the y depth received for the n-th pixel unit feedback
Signal, comprising:
In the second pulse time, triggering is directed to the y depth signal of n-th pixel unit；
At the appointed time in section, the y depth signal fed back to is received；
Time interval between first pulse time and second pulse time is that k pixel unit shows the time.
4. the method according to claim 1, wherein the first frame shows that the resolution ratio of image is described first
K times of the resolution ratio of low resolution depth image.
5. the method according to claim 1, wherein after generating the first low resolution depth image, further includes:
Receive the xth depth signal for m+a pixel unit feedback；
Receive the y depth signal for the n-th+a pixel unit feedback；Wherein, the m+a pixel unit and the n-th+a
The quantity for the pixel unit being spaced between pixel unit is k,
The xth depth signal and multiple y depth signals received in image is shown based on a+1 frame, generates a
+ 1 low resolution depth image；Wherein, k >=a >=1.
6. according to the method described in claim 5, it is characterized in that, the xth depth received for m+a pixel unit feedback
Spend signal, comprising:
In third pulse time, triggering is directed to the xth depth signal of the m+a pixel unit；
At the appointed time in section, the xth depth signal fed back to is received.
7. according to the method described in claim 6, it is characterized in that, the y depth received for the n-th+a pixel unit feedback
Spend signal, comprising:
In the 4th pulse time, triggering is directed to the y depth signal of the n-th+a pixel unit；
At the appointed time in section, the y depth signal fed back to is received；
Time interval between the third pulse time and the 4th pulse time is that k pixel unit shows the time.
8. according to the method described in claim 5, it is characterized in that, the a+1 frame shows that the resolution ratio of image is a
K times of the resolution ratio of+1 low resolution depth image.
9. according to the method described in claim 6, it is characterized by further comprising: being based on the first low resolution depth image
With the k-1 a+1 low resolution depth images, full depth image is generated；Wherein, the first frame show image and/or
A frame shows that the resolution ratio of image is identical as the resolution ratio of the full depth image.
10. a kind of integrated phase shift range finding of projector, which is characterized in that described device includes:
Receiving module, for receiving the xth depth signal for being directed to m pixel unit feedback；It receives and is fed back for the n-th pixel unit
Y depth signal；Wherein, the number for the pixel unit being spaced between the m pixel unit and n-th pixel unit
Amount is k, and the quantity for the depth signal being spaced between the xth depth signal and y depth signal is z；
Depth image generation module shows the xth depth signal received in image and multiple y based on first frame
Depth signal generates the first low resolution depth image；Wherein, m, n, x, y, k are all larger than equal to 1, and k is greater than z.
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Effective date of registration: 20221129 Address after: 261031 workshop 1, phase III, Geer Photoelectric Industrial Park, 3999 Huixian Road, Yongchun community, Qingchi street, high tech Zone, Weifang City, Shandong Province Patentee after: GoerTek Optical Technology Co.,Ltd. Address before: 261031 No.268, Dongfang Road, Weifang High tech Industrial Development Zone, Weifang City, Shandong Province Patentee before: GOERTEK Inc. |