CN114466152A - High-resolution imaging method and device by using fluorescence - Google Patents
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- H—ELECTRICITY
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- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
- H04N7/0117—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level involving conversion of the spatial resolution of the incoming video signal
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- B60R11/02—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
- B60R11/02—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof
- B60R11/0229—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof for displays, e.g. cathodic tubes
Abstract
The invention discloses a high-resolution imaging method and a device by using fluorescence, which comprises the steps of receiving a first vehicle-mounted display signal and modulating the first vehicle-mounted display signal; transmitting the modulated first vehicle-mounted display signal into an improved intensifier for resolution enhancement; and after the enhancement is finished, transmitting the first vehicle-mounted display signal to a display screen for imaging display. The invention solves the problems of imaging blur, lower resolution and difficulty in realizing driver head-up caused by the fact that the projection information is positioned in the area close to the windshield glass, and improves the imaging resolution.
Description
Technical Field
The invention relates to the technical field of automobile head-up display and fluorescence imaging, in particular to a high-resolution imaging method by using fluorescence.
Background
Fluorescence is a common luminescence phenomenon in nature, and is generated by the interaction of photons and molecules, and the interaction process can be described by a jacobian molecular energy level diagram: most molecules are in the lowest vibration energy level So of the ground state in the normal state, when excited by energy (optical energy, electric energy, chemical energy), electrons around atomic nuclei transit from the ground state energy level So to an excited state (a first or second excited state) with higher energy, the electrons in the excited state are in a high-energy state, are unstable, and can release energy to return to the ground state through two ways, one is radiation transition (including fluorescence and phosphorescence processes) releasing energy in the form of photons, and the other is non-radiation transition releasing energy in the form of thermal energy and the like; generally, after an electron outside an atomic nucleus is excited to transit from a ground state So to an excited state Si, the electron rapidly drops to a lowest vibration level through a non-radiative transition mode, and then returns to the ground state from the lowest vibration level, energy is released in the form of photon radiation, and emergent light with the property is called fluorescence.
The head-up display is called HUD for short, also called head-up display system, and means to use vehicle driver as center, blind operation, multi-functional panel board, its effect, just be the important driving information such as speed per hour, navigation, project to the windscreen in front of the driver, let the driver accomplish as far as possible not bow, do not turn around just can see important driving information such as speed per hour, navigation, suspension type HUD fixes on the sunshading board of driver top, such arrangement form has just led to HUD information will be projected in windscreen's top region.
The suspended HUD has the advantages of high product adaptability and relatively simple installation; one of the disadvantages is that the function of the sun shield is occupied; the other disadvantage is that the fixing on the sun shield is relatively unstable, which causes unstable display of the projection information; the third disadvantage is that the projection information is located in the area above the windshield glass, the imaging is fuzzy, the resolution ratio is low, and the driver can hardly look straight.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.
The present invention has been made in view of the above-mentioned conventional problems.
Therefore, the technical problem solved by the invention is as follows: the automotive suspended head-up display imaging resolution is low.
In order to solve the technical problems, the invention provides the following technical scheme: the method comprises the steps of receiving a first vehicle-mounted display signal and modulating the first vehicle-mounted display signal; transmitting the modulated first vehicle-mounted display signal into an improved intensifier for resolution enhancement; and after the enhancement is finished, transmitting the first vehicle-mounted display signal to a display screen for imaging display.
As a preferable embodiment of the high resolution imaging method using fluorescence according to the present invention, wherein: the first on-board display signal includes a deterministic signal, a stochastic signal, an analog signal, a digital signal, an energy signal, a power signal, a time domain signal, and a frequency domain signal.
As a preferable embodiment of the high resolution imaging method using fluorescence according to the present invention, wherein: the method also comprises the steps of carrying out signal identification and classification on the first vehicle-mounted display signal; rejecting the random signal; storing the deterministic signal, the analog signal, the digital signal, the energy signal, the power signal, the time domain signal, and the frequency domain signal.
As a preferable embodiment of the high resolution imaging method using fluorescence according to the present invention, wherein: said modulating comprises digital signal processing of said deterministic signal, said analog signal, said digital signal, said energy signal, said power signal, said time domain signal and said frequency domain signal; the digital signal processing includes modulation of a single tone signal.
As a preferable embodiment of the high resolution imaging method using fluorescence according to the present invention, wherein: the modulation of the single-tone signal comprises that if the stored signal contains a single-tone signal, the signal is multiplied by a carrier signal to obtain a time domain waveform and a frequency domain waveform; observing on a frequency domain waveform, the single tone signal and the carrier signal both have two frequency components; and respectively moving the frequency spectrums of the monophonic signals to the positions of two frequency components of the carrier signals according to the frequency domain convolution theorem, the time domain multiplication and the convolution of the corresponding frequency, and the frequency spectrums obtained after the multiplication.
As a preferable embodiment of the high resolution imaging method using fluorescence according to the present invention, wherein: the improved intensifier comprises setting an operating index of the improved intensifier based on an image intensifier; selecting a Taylor function as a target function of the improved intensifier, and determining the number of resonant cavities according to the target function; and adding a metallized through hole on a rectangular ring on one side of the improved booster close to the center of the circuit to enable the circuit to resonate near a cut-off frequency, thereby completing the design of the improved booster.
As a preferable embodiment of the high resolution imaging method using fluorescence according to the present invention, wherein: the working indexes comprise bandwidth, center frequency, suppression height at a low-end stop band and in-band return loss; the bandwidth is set to 850 MHz; the center frequency is set to 1.5 GHz; the suppression height at the low stopband is set to 45 dB; the in-band return loss is set to 15 dB.
As a preferable embodiment of the high resolution imaging method using fluorescence according to the present invention, wherein: the resolution enhancement includes converting the first on-board display signal processed by the improved enhancer into image data; giving an X image and a Y image block, and defining A as a magnification factor; matching the resolutions of the X image and the Y image block by using a fuzzy strategy; performing A-time bicubic difference on the X image; traversing the whole situation until outputting two values; the binary values are used to determine which location in the image needs to be replaced.
As a preferable embodiment of the high resolution imaging method using fluorescence according to the present invention, wherein: the image display system receives an image signal subjected to resolution enhancement processing; converting the image signal into a graph or an image; and projecting the converted graph or image onto a display screen by using a projection instrument.
As a preferable aspect of the high resolution imaging apparatus using fluorescence according to the present invention, wherein: the device comprises a first module, a second module and a third module, wherein the first module is used for receiving a first vehicle-mounted display signal and modulating the first vehicle-mounted display signal; a second module for transmitting the modulated first on-board display signal into a modified booster for resolution enhancement; and the third module is used for transmitting the first vehicle-mounted display signal to a display screen for imaging display after the enhancement is finished.
The invention has the beneficial effects that: the invention solves the problems of imaging blur, lower resolution and difficulty in realizing driver head-up caused by the fact that the projection information is positioned in the area above the windshield glass, and improves the imaging resolution.
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FIG. 1 is a flow chart of a method and apparatus for high resolution imaging using fluorescence according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a method and apparatus for high resolution imaging using fluorescence without resolution enhancement according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of resolution enhancement of a high resolution imaging method and apparatus using fluorescence according to an embodiment of the present invention;
fig. 4 is a schematic diagram illustrating image signal frequency simulation of a high-resolution imaging method and apparatus using fluorescence according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein.
It should be understood that, in various embodiments of the present invention, the sequence numbers of the processes do not mean the execution sequence, and the execution sequence of the processes should be determined by the functions and the internal logic of the processes, and should not constitute any limitation on the implementation process of the embodiments of the present invention.
It should be understood that in the present application, "comprising" and "having" and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be understood that, in the present invention, "a plurality" means two or more. "and/or" is merely an association describing an associated object, meaning that three relationships may exist, for example, and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "comprises A, B and C" and "comprises A, B, C" means that A, B, C all comprise, "comprises A, B or C" means comprise one of A, B, C, "comprises A, B and/or C" means comprise any 1 or any 2 or 3 of A, B, C.
It should be understood that in the present invention, "B corresponding to a", "a corresponds to B", or "B corresponds to a" means that B is associated with a, and B can be determined from a. Determining B from a does not mean determining B from a alone, but may be determined from a and/or other information. And the matching of A and B means that the similarity of A and B is greater than or equal to a preset threshold value.
As used herein, "if" may be interpreted as "at … …" or "when … …" or "in response to a determination" or "in response to a detection", depending on the context.
The technical solution of the present invention will be described in detail below with specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.
Example 1
Referring to fig. 1, for a first embodiment of the present invention, there is provided a high resolution imaging method using fluorescence, including in particular;
s1: a first on-board display signal is received and modulated. It should be noted that, the first vehicle-mounted display signal includes:
deterministic, random, analog, digital, energy, power, time domain, and frequency domain signals;
carrying out signal identification and classification on the first vehicle-mounted display signal;
rejecting random signals;
a deterministic signal, an analog signal, a digital signal, an energy signal, a power signal, a time domain signal, and a frequency domain signal are stored.
It should be noted that, the analog signal refers to a signal waveform that changes in a manner simulating the change of information, and is mainly characterized in that the amplitude is continuous and can take an infinite number of values; and may or may not be continuous in time.
It should be further noted that the digital signal refers to a signal which is not only discrete in time but also discrete in amplitude and can only take a limited number of values; for example, telegraph signals, Pulse Code Modulation (PCM) signals and the like belong to digital signals, and binary signals are digital signals, which are different combinations of two digits "1" and "0" to represent different information.
It is understood that the analog signal and the digital signal can be converted to each other, the analog signal is generally quantized into the digital signal by a PCM Pulse Code Modulation (Pulse Code Modulation) method, that is, different amplitudes of the analog signal correspond to different binary values, for example, 8-bit encoding is used to quantize the analog signal into 2^8 ^ 256 orders, and 24-bit or 30-bit encoding is often used in practical applications; generally, a digital signal is converted into an analog signal by a Phase Shift (Phase Shift) method, a binary digital signal is used in a computer, a computer local area network, and a metropolitan area network, and both a binary digital signal and an analog signal converted from a digital signal are actually transmitted in a computer wide area network.
Specifically, the modulation includes:
performing digital signal processing on the deterministic signal, the analog signal, the digital signal, the energy signal, the power signal, the time domain signal and the frequency domain signal;
digital signal processing includes modulation of a single tone signal.
Further, the modulation of the single-tone signal comprises:
if the stored signal contains a single-tone signal, multiplying the signal by a carrier signal to obtain a time domain waveform and a frequency domain waveform;
observing on the frequency domain waveform, the single tone signal and the carrier signal both have two frequency components;
according to the frequency domain convolution theorem, the time domain multiplies the convolution of corresponding frequencies, the frequency spectrum obtained after multiplication is respectively moved to the positions of two frequency components of the carrier signal.
The preferred, through carrying out signal identification classification to first on-vehicle display signal, rejects unnecessary signal, improves channel transmission capacity, and this embodiment is through modulating the signal to the storage, increases its signal frequency, has solved suspension type new line display and has fixed on the sunshading board relatively less stable, causes the unstable problem of projection information display, improves projection information's stability and frequency band utilization ratio.
S2: and transmitting the modulated first vehicle-mounted display signal to the improved intensifier for resolution enhancement. This step is to be noted that the improved enhancer comprises:
setting a working index of the improved intensifier based on the image intensifier;
selecting a Taylor function as a target function of the improved intensifier, and determining the number of resonant cavities according to the target function;
the objective function includes:
wherein lfIs the absorbed light intensity, F is the fluorescence quantum efficiency, L is the absorption optical path, L0The intensity of incident light irradiated on atomic vapor is shown as K, the peak absorption coefficient is shown as K, and N is the number of base atoms in unit length;
and a metallized through hole is added on the rectangular ring on one side close to the center of the circuit in the improved booster, so that the circuit of the improved booster resonates near a cut-off frequency, and the design of the improved booster is completed.
Specifically, the working indexes include:
bandwidth, center frequency, rejection height at the low-end stop band, and in-band return loss;
the bandwidth is set to 850 MHz; the center frequency is set to 1.5 GHz;
the suppression height at the low-end stop band is set to 45 dB;
the in-band return loss is set to 15 dB.
Further, the resolution enhancement includes:
converting the first on-board display signal processed by the improved intensifier into image data;
giving an X image and a Y image block, and defining A as a magnification factor;
matching the resolutions of the X image and the Y image block by using a fuzzy strategy;
performing A-time bicubic difference on the X image;
traversing the whole situation until outputting two values;
the binary values are used to determine which location in the image needs to be replaced.
Referring to fig. 2, an image without resolution enhancement processing of this embodiment is shown, referring to fig. 3, an image with resolution enhancement processing of this embodiment is shown, and it can be seen visually through comparison of the images, the high-resolution imaging method using fluorescence provided by this embodiment can achieve a better imaging effect, and when applied to automotive suspended head-up display, can also bring a more ideal effect.
The operation of reducing the image scale without changing the original image resolution is called enhancement of the image resolution (resolution intensity), which is an important step in digital image processing.
S3: and after the enhancement is finished, transmitting a first vehicle-mounted display signal to a display screen for imaging display. Among them, it is also to be noted that:
the image display system receives the image signal which is subjected to resolution enhancement processing;
converting the image signal into a graph or an image;
and projecting the converted graph or image onto a display screen by using a projection instrument.
Preferably, in order to better illustrate the technical effect of the method of the present invention, in this embodiment, a signal frequency simulation of the suspended head-up display high-resolution imaging is performed, specifically as follows:
(1) developing an imaging signal transmitting and receiving hardware, signal processing and a conversion imaging model by utilizing a phased array system tool box;
(2) modeling vehicle motion and tracking the resultant vehicle detection using an autonomous driving tool;
(3) the imaging model is used to track imaging detection for a hanging heads-up display in a road driving scene.
Referring to fig. 4, it can be seen that the fluctuation is exhibited only in the early stage of the start of motion, and the overall frequency is in a steady state, i.e., the imaging stability of the present invention is verified.
Example 2
This embodiment is different from the first embodiment in that it provides a high resolution imaging apparatus using fluorescence, comprising:
the first module is used for receiving and modulating a first vehicle-mounted display signal.
And the second module is used for transmitting the modulated first vehicle-mounted display signal into the improved intensifier for resolution enhancement.
And the third module is used for transmitting the first vehicle-mounted display signal to the display screen for imaging display after the enhancement is finished.
Preferably, this embodiment should also be noted that, the second module is internally loaded with an operation program for improving the enhancer and enhancing the resolution, and is operated by the code of the computer to implement the specific operation, and part of the operation code is as follows:
it should be recognized that embodiments of the present invention can be realized and implemented by computer hardware, a combination of hardware and software, or by computer instructions stored in a non-transitory computer readable memory. The methods may be implemented in a computer program using standard programming techniques, including a non-transitory computer-readable storage medium configured with the computer program, where the storage medium so configured causes a computer to operate in a specific and predefined manner, according to the methods and figures described in the detailed description. Each program may be implemented in a high level procedural or object oriented programming language to communicate with a computer system. However, the program(s) can be implemented in assembly or machine language, if desired. In any case, the language may be a compiled or interpreted language. Furthermore, the program can be run on a programmed application specific integrated circuit for this purpose.
Further, the operations of processes described herein can be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by context. The processes described herein (or variations and/or combinations thereof) may be performed under the control of one or more computer systems configured with executable instructions, and may be implemented as code (e.g., executable instructions, one or more computer programs, or one or more applications) collectively executed on one or more processors, by hardware, or combinations thereof. The computer program includes a plurality of instructions executable by one or more processors.
Further, the method may be implemented in any type of computing platform operatively connected to a suitable interface, including but not limited to a personal computer, mini computer, mainframe, workstation, networked or distributed computing environment, separate or integrated computer platform, or in communication with a charged particle tool or other imaging device, and the like. Aspects of the invention may be embodied in machine-readable code stored on a non-transitory storage medium or device, whether removable or integrated into a computing platform, such as a hard disk, optically read and/or write storage medium, RAM, ROM, or the like, such that it may be read by a programmable computer, which when read by the storage medium or device, is operative to configure and operate the computer to perform the procedures described herein. Further, the machine-readable code, or portions thereof, may be transmitted over a wired or wireless network. The invention described herein includes these and other different types of non-transitory computer-readable storage media when such media include instructions or programs that implement the steps described above in conjunction with a microprocessor or other data processor. The invention also includes the computer itself when programmed according to the methods and techniques described herein. A computer program can be applied to input data to perform the functions described herein to transform the input data to generate output data that is stored to non-volatile memory. The output information may also be applied to one or more output devices, such as a display. In a preferred embodiment of the invention, the transformed data represents physical and tangible objects, including particular visual depictions of physical and tangible objects produced on a display.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A high resolution imaging method using fluorescence, characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
receiving a first vehicle-mounted display signal and modulating the first vehicle-mounted display signal;
transmitting the modulated first vehicle-mounted display signal into an improved intensifier for resolution enhancement;
and after the enhancement is finished, transmitting the first vehicle-mounted display signal to a display screen for imaging display.
2. A high resolution imaging method using fluorescence according to claim 1, characterized in that: the first on-board display signal includes a deterministic signal, a stochastic signal, an analog signal, a digital signal, an energy signal, a power signal, a time domain signal, and a frequency domain signal.
3. A high resolution imaging method using fluorescence according to claim 2, characterized in that: also comprises the following steps of (1) preparing,
performing signal identification and classification on the first vehicle-mounted display signal;
rejecting the random signal;
storing the deterministic signal, the analog signal, the digital signal, the energy signal, the power signal, the time domain signal, and the frequency domain signal.
4. A high resolution imaging method using fluorescence according to claim 1 or 3, characterized in that: the modulation comprises the steps of, in combination with,
performing digital signal processing on the deterministic signal, the analog signal, the digital signal, the energy signal, the power signal, the time domain signal, and the frequency domain signal;
the digital signal processing includes modulation of a single tone signal.
5. A high resolution imaging method using fluorescence according to claim 4, characterized in that: the modulation of the single-tone signal comprises,
if the stored signal contains a single-tone signal, multiplying the signal by a carrier signal to obtain a time domain waveform and a frequency domain waveform;
observing on a frequency domain waveform, the single tone signal and the carrier signal both have two frequency components;
and respectively moving the frequency spectrums of the monophonic signals to the positions of two frequency components of the carrier signals according to the frequency domain convolution theorem, the time domain multiplication and the convolution of the corresponding frequency, and the frequency spectrums obtained after the multiplication.
6. A high resolution imaging method using fluorescence according to claim 5, wherein: the improved enhancer includes, in combination,
setting a working index of the improved intensifier based on an image intensifier;
selecting a Taylor function as a target function of the improved intensifier, and determining the number of resonant cavities according to the target function;
and adding a metallized through hole on a rectangular ring on one side of the improved booster close to the center of the circuit to enable the circuit to resonate near a cut-off frequency, thereby completing the design of the improved booster.
7. A high resolution imaging method using fluorescence according to claim 6, characterized in that: the working indexes comprise bandwidth, center frequency, suppression height at a low-end stop band and in-band return loss; the bandwidth is set to 850 MHz; the center frequency is set to 1.5 GHz; the suppression height at the low stopband is set to 45 dB; the in-band return loss is set to 15 dB.
8. A high resolution imaging method using fluorescence according to claim 7, characterized in that: the resolution enhancement includes the steps of,
converting the first in-vehicle display signal processed by the improved enhancer into image data;
giving an X image and a Y image block, and defining A as a magnification factor;
matching the resolutions of the X image and the Y image block by using a fuzzy strategy;
performing A-time bicubic difference on the X image;
traversing the whole situation until outputting two values;
the binary values are used to determine which location in the image needs to be replaced.
9. A high resolution imaging method using fluorescence according to claim 8, characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the image display system receives the image signal which is subjected to resolution enhancement processing;
converting the image signal into a graph or an image;
and projecting the converted graph or image onto a display screen by using a projection instrument.
10. A high resolution imaging apparatus applied to the high resolution imaging method using fluorescence according to claim 1, characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
a first module for receiving and modulating a first on-board display signal;
a second module for transmitting the modulated first on-board display signal into a modified booster for resolution enhancement;
and the third module is used for transmitting the first vehicle-mounted display signal to a display screen for imaging display after the enhancement is finished.
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