CN103542807A - Length measurement method and device, and electronic device - Google Patents
Length measurement method and device, and electronic device Download PDFInfo
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- CN103542807A CN103542807A CN201210246600.7A CN201210246600A CN103542807A CN 103542807 A CN103542807 A CN 103542807A CN 201210246600 A CN201210246600 A CN 201210246600A CN 103542807 A CN103542807 A CN 103542807A
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Abstract
The invention relates to the field of application of electronic equipment and discloses a length measurement method and device and an electronic device. The method includes: acquiring an image including an object under measurement and a known-length reference, operating length of the reference and length to be measured respectively, acquiring a first trajectory and a second trajectory marking the length of the reference and the length to be measured respectively, and calculating to obtain the length to be measured, according to the proportional relation of the first and second trajectories and the length of the reference. Acquiring and analyzing the image including the object under measurement and the reference is only required by the method, so that the object under measurement, with the length that is far larger than that of electronic equipment, can be measured, and limitations of length under measurement during measuring can be eliminated.
Description
Technical field
The present invention relates to electronic apparatus application field, particularly relate to a kind of length measurement method, device and electronic equipment.
Background technology
Be accompanied by the day by day universal of electronic equipment, and the expansion of function, existing electronic equipment has possessed increasing function, and for example, when not carrying ruler, some electronic equipments, as mobile phone, also can realize measurement of length.The technical scheme that this function adopts is, by application software, as Swiss Army Knife application software, shows the scale of ruler on the screen of described electronic equipment, by described ruler scale, realizes measurement of length.
But inventor finds in the research process of this programme, while using this scheme to measure article length, article length to be measured must be less than the length of the screen of the electronic equipment for measuring, thereby, when carrying out linear measure longimetry, there is larger restriction.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of length measurement method, to solve, in prior art, exist, while measuring object length, be subject to the restriction of object length to be measured, can not be to measuring the problem of length, specific embodiments is as follows:
A kind of length measurement method, be applied to electronic equipment, described electronic equipment at least has display unit and image acquisition units, utilize described image acquisition units to obtain at least to comprise the first image of the object of reference of determinand and known length, and show described the first image by described display unit, comprise step:
Receive the first operation of user, described the first operation is for identifying the length of described object of reference by the first trajectory;
The numerical value of the length of the described object of reference of reception user input;
Receive the second operation of user, described the second operation is for identifying length to be measured by the second trajectory;
Numerical value according to described the first trajectory and the proportionate relationship of the second trajectory and the length of described object of reference, calculates described length to be measured.
Preferably, described length to be measured is whole length or the partial-length on a limit of described determinand.
Preferably, the proportionate relationship of obtaining described the first trajectory and the second trajectory specifically comprises:
Calculate respectively the pixel quantity of described the first trajectory and the second trajectory;
Calculate the ratio value of the pixel quantity of described the first trajectory and the second trajectory, as the ratio value of described the first trajectory and the second trajectory.
Preferably, receive described user's the first operation and the second operation, obtain respectively after described the first trajectory and the second trajectory, also comprise step:
Judge whether to need to show in real time described the first trajectory and the second trajectory;
The first trajectory and the second trajectory as described in needs demonstration in real time, show described the first trajectory and the second trajectory by described display unit.
Preferably, calculate after described length to be measured, also comprise step:
Produce grid scale, and described grid scale is sent to described display unit, to be shown described grid scale by described display unit.
Accordingly, the invention also discloses a kind of length-measuring appliance, be applied to electronic equipment, described electronic equipment at least has display unit and image acquisition units, described image acquisition units is for obtaining the first image that comprises determinand and known length object of reference, and show described the first image by described display unit, described length-measuring appliance comprises:
The first trajectory acquisition module, for receiving the first operation of user, described the first operation is for identifying the length of described object of reference by the first trajectory;
Receiving port, for receiving the numerical value of length of the described object of reference of user input;
The second trajectory acquisition module, for receiving the second operation of user, described the second operation is for identifying length to be measured by the second trajectory;
Processor, comprise the first computing module and the second computing module, described the first computing module is for obtaining the proportionate relationship of described the first trajectory and the second trajectory, described the second computing module, for according to the numerical value of described the first trajectory and the proportionate relationship of the second trajectory and the length of described object of reference, calculates described length to be measured.
Preferably, described the first computing module comprises:
Pixel calculation, for calculating respectively the pixel quantity of described the first trajectory and the second trajectory;
Ratio computing unit, for calculating the ratio value of the pixel quantity of described the first trajectory and the second trajectory, as the ratio value of described the first trajectory and the second trajectory.
Preferably, described length-measuring appliance also comprises:
Judge module, for after obtaining respectively described the first trajectory and the second trajectory, judge whether to need to show in real time described the first trajectory and the second trajectory, and learn and need, after real-time demonstration, by described display unit, to show described the first trajectory and the second trajectory in judgement.
Preferably, described length-measuring appliance also comprises:
Grid scale generation module, for generation of grid scale, and is sent to described display unit by described grid scale, to be shown described grid scale by described display unit.
Meanwhile, the invention also discloses a kind of electronic equipment, comprising:
Image acquisition units, for obtaining the first image, described the first image at least comprises the object of reference of determinand and known length;
Display unit, for showing described the first image;
Above-mentioned disclosed length-measuring appliance, described length-measuring appliance at least comprises: the first trajectory acquisition module, receiving port, the second trajectory acquisition module and processor, in addition, described length-measuring appliance can also comprise: judge module and grid scale generation module.
The disclosed length measurement method of above-mentioned steps, obtain the image that comprises determinand and known length object of reference, respectively described object of reference and determinand are operated again, obtain the first trajectory and second trajectory of the described object of reference length of sign and length to be measured, and according to described the first trajectory and the proportionate relationship of the second trajectory and the length of described object of reference, calculate described length to be measured.Because this method only need to be obtained the image that comprises determinand and object of reference, and analyze described image, thereby can measure the determinand that described length value far surpasses electronic equipment, while having eliminated measurement, the restriction to length to be measured.
Especially, at the display unit of described electronic equipment, show the first trajectory and the second trajectory, and produce grid scale, can make user experience intuitively the length numerical value of determinand.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the workflow schematic diagram of the disclosed a kind of length measurement method of the embodiment of the present invention;
Fig. 2 is the workflow schematic diagram of disclosed another length measurement method of the embodiment of the present invention;
Fig. 3 is the structural representation of the disclosed a kind of length-measuring appliance of the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
In order to solve, in prior art, exist, while measuring object length, be subject to the restriction of object length to be measured, can not be to measuring the problem of length, this programme discloses a kind of length measurement method, described method is applied in electronic equipment, described electronic equipment at least has display unit and image acquisition units, utilize in advance described image acquisition units to obtain at least to comprise the first image of the object of reference of determinand and known length, and show described the first image by described display unit, workflow schematic diagram shown in Figure 1, the method specifically comprises the following steps:
The first operation of step S1, reception user, described the first operation is for identifying the length of described object of reference by the first trajectory.When described electronic equipment is mobile phone, described the first operation can be that user passes through the touch-control to handset touch panel, the length of side of described object of reference known length is drawn, thereby obtain the first trajectory that identifies described object of reference length.In other electronic equipments, described the first operation also can realize with other forms.
The numerical value of the length of the described object of reference of step S2, reception user input.
The second operation of step S3, reception user, described the second operation is for identifying length to be measured by the second trajectory.Wherein, described the first trajectory and the second trajectory can be straight line, also can be curve, described length to be measured is whole length or the partial-length on a limit of described determinand, and, the priority of obtaining described the first trajectory and the second trajectory is not specifically limited, and also can first obtain described second trajectory of sign length to be measured, then obtain described the first trajectory.
Step S4, according to the numerical value of described the first trajectory and the proportionate relationship of the second trajectory and the length of described object of reference, calculate described length to be measured.In this programme, because the length numerical value of described object of reference is known, according to described length numerical value, and the proportionate relationship of described the first trajectory and the second trajectory, just can obtain described length to be measured.
After obtaining described length to be measured, can adopt various ways that described length numerical value is shown to user, for example, can show by the described display unit of described electronic equipment described length numerical value, or, also described electronic equipment can be connected with printer, the mode by described printer to print, described length numerical value is printed, thereby know described length numerical value by user.
Workflow schematic diagram shown in Figure 2, in step S4, the method for obtaining the proportionate relationship of described the first trajectory and the second trajectory specifically comprises the following steps:
Step S41, calculate respectively the pixel quantity of described the first trajectory and the second trajectory;
Step S42, calculate the ratio value of the pixel quantity of described the first trajectory and the second trajectory, as the ratio value of described the first trajectory and the second trajectory.
In step S41 and the disclosed method of step S42, according to the ratio value of the pixel quantity of described the first trajectory and the second trajectory, can obtain the ratio value of described the first trajectory and the second trajectory.Certainly, also can adopt other modes to obtain described ratio value, the present invention is not limited thereto.
In addition, at step S3, receive user's described the first operation and the second operation, obtain after described the first trajectory and the second trajectory, also comprise step:
Judge whether to need to show in real time described the first trajectory and the second trajectory;
The first trajectory and the second trajectory as described in needs demonstration in real time, show described the first trajectory and the second trajectory by described display unit.
In the present embodiment, consider that electronic equipment is after receiving respectively the first operation of user, the second operation, display unit demonstrate in real time with described the first operation, the second operation draw the first corresponding trajectory of vestige and the second trajectory, contribute to improve user's direct feel, therefore, when needs show described the first trajectory and the second trajectory in real time, can be shown by described display unit.
In addition can be according to the process of user's pre-conditioned execution judgement, for example, user can be preset under any condition, user carries out after the first operation and the second operation, capital shows trajectory in real time, also can preset when trajectory reaches certain length, just shows trajectory.Certainly, judgment mode can be taked multiple, is not limited to this.
In addition, at step S4, calculate after described length to be measured, also comprise step:
Produce grid scale, and described grid scale is sent to described display unit, to be shown described grid scale by described display unit.
In above-mentioned steps, by display unit, show the first trajectory and the second trajectory, and in the display unit of electronic equipment, show grid scale, can make user experience intuitively the gap between the length of determinand and the length of object of reference.
The disclosed length measurement method of above-mentioned steps, obtain the image that comprises determinand and known length object of reference, respectively the image that comprises described object of reference and determinand is operated again, obtain the first trajectory and second trajectory of the described object of reference length of sign and length to be measured, and according to described the first trajectory and the proportionate relationship of the second trajectory and the length of described object of reference, calculate described length to be measured.Because this method only need to be obtained the image that comprises determinand and object of reference, and analyze described image, thereby can measure the determinand that described length value far surpasses electronic equipment, while having eliminated measurement, the restriction to length to be measured.
Especially, at the display unit of described electronic equipment, show the first trajectory and the second trajectory, and produce grid scale, can make user experience intuitively the length numerical value of determinand.
In addition, disclosed herein as well is a kind of length-measuring appliance, be applied to electronic equipment, described electronic equipment at least has display unit and image acquisition units, described image acquisition units is for obtaining the first image that comprises determinand and known length object of reference, and show described the first image by described display unit, structural representation shown in Figure 3, described length-measuring appliance comprises: the first trajectory acquisition module 1, receiving port 2, the second trajectory acquisition module 3 and processor 4, wherein
Described the first trajectory acquisition module 1, for receiving the first operation of user, described the first operation is for identifying the length of described object of reference by the first trajectory;
Described receiving port 2, for receiving the numerical value of length of the described object of reference of user input;
Described the second trajectory acquisition module 3, for receiving the second operation of user, described the second operation is for identifying length to be measured by the second trajectory, and wherein, described length to be measured is whole length or the partial-length on a limit of described determinand;
Described processor 4, comprise the first computing module 41 and the second computing module 42, described the first computing module 41 is for obtaining the proportionate relationship of described the first trajectory and the second trajectory, described the second computing module 42, for according to the numerical value of described the first trajectory and the proportionate relationship of the second trajectory and the length of described object of reference, calculates described length to be measured.
Wherein, described the first computing module 41 comprises: pixel calculation and ratio computing unit, and described pixel calculation, for calculating respectively the pixel quantity of described the first trajectory and the second trajectory;
Described ratio computing unit, for calculating the ratio value of the pixel quantity of described the first trajectory and the second trajectory, as the ratio value of described the first trajectory and the second trajectory.
The disclosed length-measuring appliance of this programme, after obtaining the image that comprises determinand and known length object of reference, again respectively by the first trajectory acquisition module 1 and the second trajectory acquisition module 3, obtain the first trajectory and second trajectory of the described object of reference length of sign and length to be measured, and by processor 4, obtain described the first trajectory and the proportionate relationship of the second trajectory and the length of described object of reference, calculate described length to be measured.Because this device only needs according to the image that comprises determinand and object of reference, analyzes, thereby can measure described length value far over the determinand of electronic equipment, while having eliminated measurement, the restriction to length to be measured.
Simultaneously, length-measuring appliance disclosed in this invention also comprises: judge module, described judge module is for after obtaining respectively described the first trajectory and the second trajectory, judge whether to need to show in real time described the first trajectory and the second trajectory, and learn and need, after demonstration in real time, by described display unit, to show described the first trajectory and the second trajectory in judgement.
In addition, described length-measuring appliance also comprises: grid scale generation module, described grid scale generation module, for generation of grid scale, and is sent to described display unit by described grid scale, to be shown described grid scale by described display unit.
By described trajectory transmit port disclosed above and grid scale generation module, can make the display unit of electronic equipment can show described the first trajectory and the second trajectory, and produce grid scale, make user experience intuitively the length numerical value of determinand.
In addition, the invention also discloses a kind of electronic equipment, described electronic equipment comprises: image acquisition units and display unit, and length-measuring appliance, wherein,
Described image acquisition units, for obtaining the first image, described the first image at least comprises the object of reference of determinand and known length.Generally, described image acquisition units realizes with the form of camera, for example, when described electronic equipment is mobile phone, described image acquisition units can be the camera head on mobile phone, or, described image acquisition units can be also other form, and this programme does not limit.
Described display unit, for showing described the first image.
In addition, described length-measuring appliance comprises: the first trajectory acquisition module 1, receiving port 2, the second trajectory acquisition module 3 and processor 4, described the first trajectory acquisition module 1 is for receiving the first operation of user's input, to identify the length of described object of reference by the first trajectory; Described receiving port 2 is for receiving the numerical value of length of the described object of reference of user input; Described the second trajectory acquisition module 3 is for receiving the second operation of user, to identify length to be measured by the second trajectory; Described processor 4 is for calculating the proportionate relationship of described the first trajectory and the second trajectory, and according to the numerical value of the length of described proportionate relationship and described object of reference, calculates described length to be measured.
In addition, described length-measuring appliance also comprises described in trajectory transmit port and grid scale generation module that trajectory transmit port is for described the first trajectory and the second trajectory are sent to described display unit, to be shown described the first trajectory and the second trajectory by described display unit; Described grid scale generation module, for generation of grid scale, and is sent to described display unit by described grid scale, to be shown described grid scale by described display unit.
Electronic equipment disclosed in this invention, as long as by described image acquisition units, obtain the image that comprises determinand and known length object of reference, again respectively by the first trajectory acquisition module 1 and the second trajectory acquisition module 3, the first trajectory and the second trajectory of obtaining the described object of reference length of sign and length to be measured, just can calculate described length to be measured.Because computation process only needs, according to comprising the image of determinand and object of reference, to analyze, thereby can measure described length value far over the determinand of electronic equipment, while having eliminated measurement, the restriction to length to be measured.
Those of ordinary skills can recognize, unit and the algorithm steps of each example of describing in conjunction with embodiment disclosed herein, can realize with the combination of electronic hardware or computer software and electronic hardware.These functions are carried out with hardware or software mode actually, depend on application-specific and the design constraint of technical scheme.Professional and technical personnel can specifically should be used for realizing described function with distinct methods to each, but this realization should not thought and exceeds scope of the present invention.
Those skilled in the art can be well understood to, and for convenience and simplicity of description, the specific works process of the system of foregoing description, device and unit, can, with reference to the corresponding process in preceding method embodiment, not repeat them here.
In the several embodiment that provide in the application, should be understood that disclosed system, apparatus and method can realize by another way.For example, device embodiment described above is only schematic, for example, the division of described unit, be only that a kind of logic function is divided, during actual realization, can have other dividing mode, for example a plurality of unit or assembly can in conjunction with or can be integrated into another system, or some features can ignore, or do not carry out.Another point, shown or discussed coupling each other or direct-coupling or communication connection can be by some interfaces, indirect coupling or the communication connection of device or unit can be electrically, machinery or other form.
The described unit as separating component explanation can or can not be also physically to separate, and the parts that show as unit can be or can not be also physical locations, can be positioned at a place, or also can be distributed in a plurality of network element.Can select according to the actual needs some or all of unit wherein to realize the object of the present embodiment scheme.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, can be also that the independent physics of unit exists, and also can be integrated in a unit two or more unit.
If described function usings that the form of SFU software functional unit realizes and during as production marketing independently or use, can be stored in a computer read/write memory medium.Understanding based on such, the part that technical scheme of the present invention contributes to prior art in essence in other words or the part of this technical scheme can embody with the form of software product, this computer software product is stored in a storage medium, comprise that some instructions are with so that a computer equipment (can be personal computer, server, or the network equipment etc.) carry out all or part of step of method described in each embodiment of the present invention.And aforesaid storage medium comprises: various media that can be program code stored such as USB flash disk, portable hard drive, ROM (read-only memory) (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CDs.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the present invention.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a length measurement method, be applied to electronic equipment, described electronic equipment at least has display unit and image acquisition units, utilize described image acquisition units to obtain at least to comprise the first image of the object of reference of determinand and known length, and show described the first image by described display unit, it is characterized in that, comprise step:
Receive the first operation of user, described the first operation is for identifying the length of described object of reference by the first trajectory;
The numerical value of the length of the described object of reference of reception user input;
Receive the second operation of user, described the second operation is for identifying length to be measured by the second trajectory;
Numerical value according to described the first trajectory and the proportionate relationship of the second trajectory and the length of described object of reference, calculates described length to be measured.
2. method according to claim 1, is characterized in that, described length to be measured is whole length or the partial-length on a limit of described determinand.
3. method according to claim 1, is characterized in that, the proportionate relationship of obtaining described the first trajectory and the second trajectory specifically comprises:
Calculate respectively the pixel quantity of described the first trajectory and the second trajectory;
Calculate the ratio value of the pixel quantity of described the first trajectory and the second trajectory, as the ratio value of described the first trajectory and the second trajectory.
4. method according to claim 1, is characterized in that, receives described user's the first operation and the second operation, obtains after described the first trajectory and the second trajectory, also comprises step:
Judge whether to show described the first trajectory and the second trajectory;
The first trajectory and the second trajectory as described in needs demonstration in real time, show described the first trajectory and the second trajectory by described display unit.
5. method according to claim 1, is characterized in that, calculates after described length to be measured, also comprises step:
Produce grid scale, and described grid scale is sent to described display unit, to be shown described grid scale by described display unit.
6. a length-measuring appliance, be applied to electronic equipment, described electronic equipment at least has display unit and image acquisition units, described image acquisition units is for obtaining the first image that comprises determinand and known length object of reference, and show described the first image by described display unit, it is characterized in that, described length-measuring appliance comprises:
The first trajectory acquisition module, for receiving the first operation of user, described the first operation is for identifying the length of described object of reference by the first trajectory;
Receiving port, for receiving the numerical value of length of the described object of reference of user input;
The second trajectory acquisition module, for receiving the second operation of user, described the second operation is for identifying length to be measured by the second trajectory;
Processor, comprise the first computing module and the second computing module, described the first computing module is for obtaining the proportionate relationship of described the first trajectory and the second trajectory, described the second computing module, for according to the numerical value of described the first trajectory and the proportionate relationship of the second trajectory and the length of described object of reference, calculates described length to be measured.
7. device according to claim 6, is characterized in that, described the first computing module comprises:
Pixel calculation, for calculating respectively the pixel quantity of described the first trajectory and the second trajectory;
Ratio computing unit, for calculating the ratio value of the pixel quantity of described the first trajectory and the second trajectory, as the ratio value of described the first trajectory and the second trajectory.
8. device according to claim 6, is characterized in that, described length-measuring appliance also comprises:
Judge module, for after obtaining respectively described the first trajectory and the second trajectory, judge whether to need to show in real time described the first trajectory and the second trajectory, and learn and need, after real-time demonstration, by described display unit, to show described the first trajectory and the second trajectory in judgement.
9. device according to claim 6, is characterized in that, described length-measuring appliance also comprises:
Grid scale generation module, for generation of grid scale, and is sent to described display unit by described grid scale, to be shown described grid scale by described display unit.
10. an electronic equipment, is characterized in that, comprising:
Image acquisition units, for obtaining the first image, described the first image at least comprises the object of reference of determinand and known length;
Display unit, for showing described the first image;
If claim 6 is to the length-measuring appliance as described in claim 9 any one.
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