CN110299098B - Calibration method for chromatic aberration of perforated screen watch - Google Patents
Calibration method for chromatic aberration of perforated screen watch Download PDFInfo
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- G—PHYSICS
- G04—HOROLOGY
- G04G—ELECTRONIC TIME-PIECES
- G04G9/00—Visual time or date indication means
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- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
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Abstract
The invention relates to a calibration method of color difference of a perforated screen watch, which comprises a learning step, an edge calculation step, a calibration step and a data reprocessing step. Also, the calibrated data can be continuously reprocessed and continuously optimized.
Description
Technical Field
The invention relates to a screen color calibration method, in particular to a calibration method of surface color difference of an intelligent watch.
Background
The screen that present cell-phone used because the screen piece is great, the colour has colour difference and seems surveyability, and whole piece screen colour is adjusted and is got up through simple screen color correction appearance, if colorimeter and spectrophotometer, can carry out relatively accurate calibration. However, the way in which i developed a punch screen + a watch with a traditional movement is greatly sought after, in the technology of the punch screen, since the screen of the watch is small and there is a solid punch for the solid pointer to pass through, there is no problem in the screen display test of the finished product temporarily, but once a color difference is detected, the distortion of the color of the product in the same batch and the product in other batches is a problem concentrated relative to other problems due to the existence of the process of punching. However, in the case of a screen produced by a mobile phone, since the entire screen block is large, the problem of chromatic aberration is relatively small, and therefore, the problem is only present in a small-sized perforated screen (generally 1 inch) such as a wristwatch. And this kind of screen belongs to the little numerous screen, because it is very complicated technology to open a hole on very little hardware, and need expend a large amount of manpower and material resources to improve its technology again, does not have any enterprise to present to this problem to put forward other solutions except that the technology is solved.
Disclosure of Invention
In view of this, the present invention provides a method for calibrating a color difference of a watch, which does not need to improve a reproduction process, and can compensate the color difference of a watch screen relatively accurately by using a color calibration method with big data.
The specific technical scheme of the invention is as follows:
a method of calibrating color differences for a perforated screen watch, the method comprising a learning step, an edge calculation step, a calibration step, the learning step comprising:
x1, recording screen manufacturer a, production batch b, production place c and chip model d information of the watch screen delivery information to form a first data string T1= [ a, b, c, d ]; transmitting the data string T1 to an edge computing device;
x2, partitioning the screen to obtain p partitions, wherein each partition is not more than 5 pixel points;
x3, displaying a first pure color C1 in m pure colors on a screen, and acquiring an original driving voltage of any pixel point in a first subarea Q1 in the subareas, wherein the original driving voltage comprises three original voltage components V corresponding to RGB respectively Original (original) =[ Vr,Vg,Vb](ii) a The first solid color, the first partition and the three original voltage components form a second sub-data string T211= [ C1, Q1, V Original (original) ]；
X4, acquiring actual driving voltage after the color of the first subarea Q1 is calibrated by a user with reference to a standard color picture of the first pure color C1, wherein the actual driving voltage comprises three actual voltage components V corresponding to RGB respectively Practice of =[ Vr,Vg,Vb](ii) a The first pure color, the first partition and the three original actual components form a third partition data string T311= [ C1, Q1, V = Practice of ]；
And X5, repeating the steps X3 and X4 to obtain a first pure color, an ith partition and three original voltage components to form a second partition data string T21i = [ C1, qi, V ] Original ](ii) a And obtaining a first pure color, an ith partition and three actual voltage components to form a third partition data string T31i = [ C1, qi, V = Practice of ]；
X6, performing jth pure color Cj display on the screen, and repeating the steps X3-X5 to obtain a second sub data string T2ji = [ Cj, qi, V ] of the ith partition of the jth pure color Original ]And a third partial data string T3ji = [ Cj, qi, V = Practice of ]Transmitting the second sub data string T2ji and the third sub data string T3ji to an edge computing device; all the second sub-data strings T2ji form a second data string T2= [ T2ji ]]，i∈[1,p]，j∈[1,m](ii) a All the third partial data strings T3ji form a third data string T3= [ T3ji =]，i∈[ 1,p]，j∈[1,m]；
X7, repeating the steps X3-X6 to enable the data acquisition amount of each partition of each pure color to be not less than 100; transmitting the second data string T2 and the third data string T3 into an edge computing device;
the edge calculation step includes:
x8, calculating the standard deviation of the ith partition of the jth pure color; the standard deviation is calculated by removing the first 10% and the second 10% of the data, and calculating the standard deviation V by using the standard deviation of the rest 80% of the data Reference to = [ Vr,Vg,Vb]Obtaining the reference voltage value information T4ji = [ T1, cj, qi, V ] of the ith partition of the jth pure color Original (original) ,V Practice of ,V Reference to ]；
X9, forming a fourth data string T4= [ T4ji ], i ∈ [1, p ], j ∈ [1, m ] about the screen factory information, the original driving voltage, the actual driving voltage, and the color calibration in the edge computing device;
the calibration step comprises:
x10, reading factory information of the watch screen, transmitting the factory information to the edge computing equipment, performing addressing operation in the fourth data string T4, finding out T1 corresponding to the factory information of the watch screen, and reading out reference voltage value information T4ji corresponding to the T1;
x11, reading three original voltage components V of the screen Original From standard deviation V Reference to Comparing, the processor adjusts the distributed voltage to make the input voltage value and the standard deviation V Reference to = [ Vr,Vg,Vb]The three component voltages are consistent, and calibration of the watch chromatic aberration is completed.
Further, the method further comprises a data reprocessing step:
x12, the user recalibrates the color of the screen with the completed watch color difference calibration, and the calibrated V is In fact =[ Vr,Vg,Vb]Sending the standard deviation to the step X8, and recalculating the standard deviation to form a calculated standard deviation V Reference to = [ Vr,Vg,Vb]。
Further, if the chip of the chip model does not include the GPU, the GPU model e of the watch screen factory information is recorded, and a first data string T1= [ a, b, c, d, e ] is formed.
Further, in the step X8, the standard deviation is calculated by removing 68.27% of the previous normal distribution, and the standard deviation is calculated for the remaining data to obtain the standard deviation V Reference to = [ Vr,Vg,Vb]Obtaining the reference voltage value information T4ji = [ T1, cj, qi, V ] of the ith partition of the jth pure color Original (original) ,V In fact ,V Reference to ]。
Further, in the step X2, the number of the pixel points of each partition is set to 1 to 9 according to the computing capability of the edge computing device. When the computational power is maximal, each pixel can be set to one partition.
Further, in the step X4, the standard color picture refers to an international standard color icon.
Further, in the step X7, the samples may be calibrated by the same user or by different users, wherein the number of times of calibration by the same user is not more than 10% of the total number of samples.
Further, data transmission between the watch and the edge computing device employs bluetooth, WIFI, or SIM data traffic.
Furthermore, the watch is a circular perforated screen watch, and each partition comprises 1-2 pixel points within the diameter range of 5mm of the perforated screen.
By the technical scheme, the color of the watch screen is calibrated in a big data mode, so that calibration when the colors of different batches of products are different is realized on software. Also, the calibrated data can be continuously reprocessed and continuously optimized.
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, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. 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 terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, and "a" and "an" generally include at least two, but do not exclude at least one, unless the context clearly dictates otherwise.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
It should be understood that, although the terms first, second, third, etc. may be used in the embodiments of the present invention to describe \8230; \8230, these terms are not intended to be limiting for 8230; etc. These terms are used only to distinguish between 8230; and vice versa. For example, a first of the embodiments 8230; may also be referred to as a second of the embodiments 8230; for example, without departing from the scope of embodiments of the invention, similarly, the second one (8230) \\8230; also known as the first one (8230); 8230).
The words "if", as used herein, may be interpreted as "at \8230; \8230when" or "when 8230; \823030, when" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrase "if determined" or "if detected (a stated condition or event)" may be interpreted as "upon determining" or "in response to determining" or "upon detecting (a stated condition or event)" or "in response to detecting (a stated condition or event)", depending on the context.
It is also noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrases "comprising one of \8230;" does not exclude the presence of additional like elements in an article or system comprising the element.
In addition, the sequence of steps in the embodiments of the methods described below is merely an example, and is not strictly limited.
The watch sometimes has color differences not noticed by users due to the small screen, but, objectively, because the manufacturing process of the perforated screen of the watch is directed to a very small volume, as in the perforated screen watches currently used by us, the colors of watches of different batches may be slightly different overall by naked eyes. For the process, a yield of 80% may be acceptable due to the high price, but for the quality control of the product, 95% or more may be required. The invention provides a software changing method for slightly distorting screen colors aiming at a perforated screen on the basis of a screen accessory.
Example one
The invention creatively combines big data with the color calibration of the watch, and initiates the calibration of the watch screen.
A method for calibrating watch chromatic aberration comprises a learning step and an edge calculation step, wherein the calibrating step comprises the following steps:
x1, recording screen manufacturer a, production batch b, production place c and chip model d information of the watch screen delivery information to form a first data string T1= [ a, b, c, d ]; and transmitting the data string T1 to the edge computing equipment. Data transmission between the watch and the edge computing device employs bluetooth, WIFI, or SIM data traffic.
And X2, partitioning the screen to obtain p partitions, wherein each partition is not more than 5 pixel points. Of course, the number of pixel points per partition is set to 1-9, depending on the computing power of the edge computing device. When the computational power is maximal, each pixel can be set to one partition. When the watch is a circular perforated screen watch, each partition comprises 1-2 pixel points within the diameter range of 5mm of the perforated screen. Thus, it is possible to perform targeted color correction for a portion where color distortion is very likely to occur.
X3, displaying a first pure color C1 in m pure colors on a screen, and acquiring an original driving voltage of any pixel point in a first partition Q1 in a partition, wherein the original driving voltage comprises three original voltage components V corresponding to RGB respectively Original =[ Vr,Vg,Vb](ii) a The first pure color, the first partition and the three original voltage components form a second sub-data string T211= [ C1, Q1, V ] V Original ]；
X4, acquiring actual driving voltage after the color of the first subarea Q1 is calibrated by a user with reference to a standard color picture of the first pure color C1, wherein the actual driving voltage comprises three actual voltage components V corresponding to RGB respectively Practice of =[ Vr,Vg,Vb](ii) a The first pure color, the first partition and the three original actual components form a third data string T311= [ C1, Q1, V Practice of ]. Wherein the standard color picture refers to an international standard color icon. Or may be a color standard promulgated by a standard organization or a general, widely recognized standard color picture.
And X5, repeating the steps X3 and X4 to obtain a first pure color, an ith partition and three original voltage components to form a second partition data string T21i = [ C1, qi, V ] Original (original) ](ii) a And obtaining the first pure color, the ith subarea and three actual voltage components to form a third subarea data string T31i = [ C1, qi, V = Practice of ]；
X6, displaying the jth pure color Cj on the screen, and repeating the steps X3-X5 to obtain a second sub data string T2ji = [ Cj, qi, V ] of the ith partition of the jth pure color Original ]And a third partial data string T3ji = [ Cj, qi, V = Practice of ]Transmitting the second sub data string T2ji and the third sub data string T3ji to an edge computing device; all the second sub-data strings T2ji form a second data string T2= [ T2ji = []，i∈[1,p]，j∈[1,m](ii) a All the third partial data strings T3ji form a third data string T3= [ T3ji =]，i∈[ 1,p]，j∈[1,m]；
X7, repeating the steps X3-X6 to enable the data acquisition quantity of each partition of each pure color to be not less than 100; transmitting the second data string T2 and the third data string T3 into an edge computing device;
the edge calculation step includes:
x8, performing standard deviation calculation on the ith partition of the jth pure color; the standard deviation is calculated by removing the first 10% and the second 10% of the data, and calculating the standard deviation V by using the standard deviation of the rest 80% of the data Reference to = [ Vr,Vg,Vb]Obtaining the reference voltage value information T4ji = [ T1, cj, qi, V ] of the ith partition of the jth pure color Original ,V Practice of ,V Reference to ]；
X9, forming a fourth data string T4= [ T4ji ], i ∈ [1, p ], j ∈ [1, m ] about screen factory information, original driving voltage, actual driving voltage and color calibration in the edge computing device;
the calibration step comprises:
x10, reading factory information of the watch screen, transmitting the factory information to the edge computing equipment, performing addressing operation in the fourth data string T4, finding out T1 corresponding to the factory information of the watch screen, and reading out reference voltage value information T4ji corresponding to the T1;
x11, reading three original voltage components V of the screen Original And standard deviation V Reference to Comparing, the processor adjusts the distributed voltage to make the input voltage value and the standard deviation V Reference to = [ Vr,Vg,Vb]The three component voltages are consistent, and calibration of the watch chromatic aberration is completed.
Due to the presence of the edge computing device, having a large memory space and computing power, the data can be constantly optimized, and therefore the method can further comprise a data reprocessing step:
x12, the user recalibrates the color of the screen with the completed watch color difference calibration, and the calibrated V Practice of =[ Vr,Vg,Vb]Sending the standard deviation to the step X8, and recalculating the standard deviation to form a calculated standard deviation V Reference to = [ Vr,Vg,Vb]。
Example two
In fact, the display of the image is also largely related to the GPU, and some chips do not inherit the GPU, so that it is necessary to collect information about the GPU, and consider the GPU as an additional factor for the screen. In the factory information of the first embodiment, the GPU model e of the factory information of the watch screen is added to form a first data string T1= [ a, b, c, d, e ].
EXAMPLE III
In the calculation process of the standard deviation, in order to obtain a better data sample, 10% of the previous data sample and the next data sample are modified into normal distribution with a data statistical rule, in step X8, the standard deviation is calculated by removing the data except for 68.27% of the previous normal distribution, and the standard deviation calculation is carried out on the rest data to obtain the standard deviation V Reference to = [ Vr,Vg,Vb]Obtaining the reference voltage value information T4ji = [ T1, cj, qi, V ] of the ith partition of the jth pure color Original (original) ,V Practice of ,V Reference to ]。
By the technical scheme, the color of the watch screen is calibrated in a big data mode, so that calibration when the colors of different batches of products are different is realized on software. Also, the calibrated data can be continuously reprocessed and continuously optimized.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. A calibration method for chromatic aberration of a perforated-screen watch, the method comprising a learning step, an edge calculation step, and a calibration step, the learning step comprising:
x1, recording screen manufacturer a, production batch b, production place c and chip model d information of the watch screen delivery information to form a first data string T1= [ a, b, c, d ]; transmitting the data string T1 to an edge computing device;
x2, partitioning the screen to obtain p partitions, wherein each partition is not more than 5 pixel points;
x3, displaying a first pure color C1 in m pure colors on a screen, and acquiring an original driving voltage of any pixel point in a first partition Q1 in a partition, wherein the original driving voltage comprises three original voltage components V corresponding to RGB respectively Original =[ Vr,Vg,Vb](ii) a The first pure color, the first partition and the three original voltage components form a second sub-data string T211= [ C1, Q1, V ] V Original ]；
X4, acquiring actual driving voltage after the color of the first subarea Q1 is calibrated by a user with reference to a standard color picture of the first pure color C1, wherein the actual driving voltage comprises three actual voltage components V corresponding to RGB respectively In fact =[ Vr,Vg,Vb](ii) a The first pure color, the first partition and the three original actual components form a third partition data string T311= [ C1, Q1, V = Practice of ]；
And X5, repeating the steps X3 and X4 to obtain a first pure color, an ith partition and three original voltage components to form a second partition data string T21i = [ C1, qi, V ] Original ](ii) a And obtaining the first pure color, the ith subarea and three actual voltage components to form a third subarea data string T31i = [ C1, qi, V = In fact ]；
X6, performing jth pure color Cj display on the screen, and repeating the steps X3-X5 to obtain a second sub data string T2ji = [ Cj, qi, V ] of the ith partition of the jth pure color Original ]And a third partial data string T3ji = [ Cj, qi, V = In fact ]Transmitting the second sub data string T2ji and the third sub data string T3ji to an edge computing device; all the second sub-data strings T2ji form a second data string T2= [ T2ji ]]，i∈[1,p]，j∈[1,m](ii) a All the third partial data strings T3ji form a third data string T3= [ T3ji =]，i∈[ 1,p]，j∈[1,m]；
X7, repeating the steps X3-X6 to enable the data acquisition amount of each partition of each pure color to be not less than 100; transmitting the second data string T2 and the third data string T3 into an edge computing device;
the edge calculation step includes:
x8, performing standard deviation calculation on the ith partition of the jth pure color; the standard deviation is calculated as the first 10% and the last 10% of the subtractionCalculating the standard deviation of the rest 80% of the data to obtain the standard deviation V Reference to = [ Vr,Vg,Vb]Obtaining the reference voltage value information T4ji = [ T1, cj, qi, V ] of the ith partition of the jth pure color Original ,V Practice of ,V Reference to ]；
X9, forming a fourth data string T4= [ T4ji ], i ∈ [1, p ], j ∈ [1, m ] about screen factory information, original driving voltage, actual driving voltage and color calibration in the edge computing device;
the calibration step comprises:
x10, reading factory information of the watch screen, transmitting the factory information to the edge computing equipment, performing addressing operation in the fourth data string T4, finding out T1 corresponding to the factory information of the watch screen, and reading out reference voltage value information T4ji corresponding to the T1;
x11, reading three original voltage components V of the screen Original (original) And standard deviation V Reference to Comparing, the processor adjusts the distributed voltage to make the input voltage value and the standard deviation V Reference to = [ Vr,Vg,Vb]The three component voltages are consistent, and calibration of the watch chromatic aberration is completed;
x12, the user recalibrates the color of the screen with the completed watch color difference calibration, and the calibrated V is Practice of =[ Vr,Vg,Vb]Sending the standard deviation to the step X8, and recalculating the standard deviation to form a calculated standard deviation V Reference to = [ Vr,Vg,Vb]。
2. The method according to claim 1, wherein if the chip of the chip model does not include a GPU, further recording a GPU model e of the factory information of the watch screen, forming a first data string T1= [ a, b, c, d, e ].
3. The method according to any one of claims 1-2, wherein in step X8, the standard deviation is calculated by removing the data except for 68.27% of the previous normal distribution, and the remaining data is subjected to standard deviation calculation to obtain the standard deviation V Reference to = [ Vr,Vg,Vb]Obtaining parameters of ith subarea of jth pure colorReference voltage value information T4ji = [ T1, cj, qi, V Original ,V Practice of ,V Reference to ]。
4. The method according to claim 1, wherein in the step X2, the number of pixel points of each partition is set to 1-9 according to the computing power of the edge computing device; when the computational power is at its maximum, each pixel can be set to a partition.
5. The method according to claim 1, wherein in the step X4, the standard color picture refers to an international standard color icon.
6. The method according to claim 1, wherein in step X7, the samples can be calibrated by the same user or by different users, wherein the number of times of calibration by the same user is not more than 10% of the whole number of samples.
7. The method of claim 1, wherein the data transfer between the watch and the edge computing device employs bluetooth, WIFI, or SIM data traffic.
8. The method of claim 1, wherein the watch is a circular, perforated screen watch, each sector comprising 1-2 pixels within a 5mm diameter of the perforated screen.
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