CN108255341A

CN108255341A - One kind, which is taken pictures, searches topic method, system and hand-held photographing device

Info

Publication number: CN108255341A
Application number: CN201810054703.0A
Authority: CN
Inventors: 徐杨; 黄东
Original assignee: Guangdong Genius Technology Co Ltd
Current assignee: Guangdong Genius Technology Co Ltd
Priority date: 2018-01-19
Filing date: 2018-01-19
Publication date: 2018-07-06

Abstract

One kind, which is taken pictures, searches topic method, system and hand-held photographing device, including：Hand-held photographing device response frame choosing instruction projects dominant frame on the projection surface where examination question；Wherein, dominant frame selects at least one of test question to be checked in projection surface for frame；Whether the projecting direction that hand-held photographing device detection projects dominant frame is vertical with projection surface, wherein, the direction of taking pictures for holding the camera of photographing device is identical with projecting direction, if it is not, then adjustment projecting direction is vertical with projection surface until projecting direction；Hand-held photographing device shoots dominant frame region by camera, to obtain examination question image, examination question image is sent to electronic equipment again, so that electronic equipment exports examination question image and the target test question to be checked in examination question image is uploaded to server to obtain the corresponding target answer information of target test question to be checked.Implement the embodiment of the present invention, can improve and search topic efficiency and search topic accuracy rate.

Description

One kind, which is taken pictures, searches topic method, system and hand-held photographing device

Technical field

The present invention relates to technical field of electronic equipment, and in particular to one kind, which is taken pictures, searches topic method, system and hand-held racket according to setting It is standby.

Background technology

At present, it is universal with the mode of learning of searching topic of taking pictures on line, occur on the market more and more for solving The application software of operation problem.

It could complete entirely to take pictures and search the process of topic in general, student needs to undergo following steps using such application software： Unlock mobile phone/tablet computer-is found in the application software-startup application software-startup application software for searching topic of taking pictures Camera function-focusing bat inscribes and obtains examination question image-confirmation examination question image and by examination question image upload server-server It identifies the examination question in examination question image and retrieves matching answer parsing-server and feed back to answer parsing using soft Part is checked for student.As it can be seen that this take pictures search topic process it is relatively complicated, reduce student searches topic efficiency.

Invention content

It takes pictures the embodiment of the invention discloses one kind and searches topic method, system and hand-held photographing device, can improve and search topic effect Rate and search topic accuracy rate.

First aspect of the embodiment of the present invention, which discloses one kind, takes pictures and searches topic method, the method includes：

Hand-held photographing device response frame choosing instruction projects dominant frame on the projection surface where examination question；Wherein, it is described dominant Frame selects at least one of test question to be checked in the projection surface for frame；

Whether the projecting direction that the hand-held photographing device detection projects the dominant frame is vertical with the projection surface；Its In, the direction of taking pictures of the camera of the hand-held photographing device is identical with the projecting direction；

If not, the hand-held photographing device adjusts the projecting direction until the projecting direction and the projection surface hang down Directly；

The hand-held photographing device shoots the dominant frame region by camera, to obtain examination question image；Wherein, The examination question image includes at least one of test question to be checked；

The hand-held photographing device sends the examination question image to electronic equipment, so that the electronic equipment exports the examination It inscribes image and the target test question to be checked in the examination question image is uploaded to server to obtain target test to be checked Corresponding target answer information is inscribed, the target test question to be checked is to be detected including one in the examination question image or multiple tracks Examination question.

Second aspect of the embodiment of the present invention discloses a kind of hand-held photographing device, and the hand-held photographing device includes：

Focusing positioning unit projects dominant frame for responding frame choosing instruction on the projection surface where examination question；Wherein, it is described Dominant frame selects at least one of test question to be checked in the projection surface for frame；

Vertical detection unit, it is whether vertical with the projection surface for detecting the projecting direction of the projection dominant frame；Its In, the direction of taking pictures of the camera of the hand-held photographing device is identical with the projecting direction；

Angle correcting unit, for detecting that the projecting direction does not hang down with the projection surface in the vertical detection unit After straight, the projecting direction is adjusted until the projecting direction is vertical with the projection surface；

Hand-held hardware photographing unit, shoots the dominant frame region, to obtain examination question image for passing through camera； Wherein, the examination question image includes at least one of test question to be checked；

Transmitting element, for sending the examination question image to electronic equipment, so that the electronic equipment exports the examination question Image and the target test question to be checked in the examination question image is uploaded to server to obtain target test question to be checked Corresponding target answer information, the target test question to be checked include one or multiple tracks test to be checked in the examination question image Topic.

The third aspect of the embodiment of the present invention, which discloses one kind, takes pictures and searches topic system, and the system for searching topic of taking pictures includes hand-held Photographing device, electronic equipment and server；

Hand-held photographing device of the hand-held photographing device as described in second aspect of the embodiment of the present invention；

The electronic equipment includes：First Transmit-Receive Unit, display unit and examination question detection unit；

The server includes：Second Transmit-Receive Unit and search unit；

Wherein, first Transmit-Receive Unit, for receiving the examination question image that the hand-held photographing device is sent；

The display unit shows that the examination question image and output show that first Transmit-Receive Unit connects for exporting The corresponding target answer information of target test question to be checked that second Transmit-Receive Unit described in the server received is sent；

The examination question detection unit, after showing the examination question image in display unit output, according to user Operation detects target test question to be checked from the examination question image, and the target test question to be checked is included in the examination question image One or multiple tracks test question to be checked；

First Transmit-Receive Unit is additionally operable to the target test question to be checked in the examination question image being sent to the service Second Transmit-Receive Unit of device；

Second Transmit-Receive Unit, for receiving the examination question of first Transmit-Receive Unit of electronic equipment upload Target test question to be checked in image；

Described search unit, for searching for the corresponding target answer information of target test question to be checked；

Second Transmit-Receive Unit is additionally operable to feeding back to the target answer information into described the first of the electronic equipment Transmit-Receive Unit.

Fourth aspect of the embodiment of the present invention discloses a kind of hand-held photographing device, including：

It is stored with the memory of executable program code；

The processor coupled with the memory；

The processor calls the executable program code stored in the memory, performs the embodiment of the present invention the It takes pictures disclosed in one side and searches topic method.

The 5th aspect of the embodiment of the present invention discloses a kind of computer readable storage medium, stores computer program, In, the computer program causes computer performs to take pictures disclosed in first aspect of the embodiment of the present invention to search topic method.

The 6th aspect of the embodiment of the present invention discloses a kind of computer program product, when the computer program product is being counted When being run on calculation machine so that the computer, which performs to take pictures disclosed in first aspect, searches topic method.

Compared with prior art, the embodiment of the present invention has the advantages that：

In the embodiment of the present invention, hand-held photographing device be able to can shine hand-held racket and set after frame choosing instruction is received It is standby that dominant frame is projected on the projection surface where examination question.Wherein, dominant frame selects at least to be detected together in projection surface for frame Examination question.Further, whether vertical with projection surface photographing device detection projecting direction is held, if it is not, then adjusting projection Direction until it is vertical with projection surface (because projecting direction is identical with the direction of taking pictures of camera, projecting direction and projection surface It is vertical be camera direction of taking pictures it is vertical with projection surface), with by vertically shooting raising image-capturing resolution, and then raising is searched Inscribe accuracy rate.Hand-held photographing device is further advanced by camera and shoots dominant frame region to obtain examination question image (examination question The test question to be checked included in image is the examination question of dominant frame center choosing), user can be allowed quick by way of dominant frame Frame selects test question to be checked, and topic efficiency is searched in raising.Hand-held photographing device can also be by examination question image transmitting to electronic equipment (electronics Equipment is connected with hand-held photographing device) and server is uploaded to, target answer information is obtained by server.It is in conclusion real The embodiment of the present invention is applied, topic step raising can be searched by simplification and searches topic efficiency and by improving image-capturing resolution, Jin Erti Height searches topic accuracy rate.

Description of the drawings

It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to needed in the embodiment Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the present invention, for ability For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached Figure.

Fig. 1 be one kind disclosed by the embodiments of the present invention take pictures search topic systematic difference schematic diagram；

Fig. 2 is that a kind of take pictures disclosed by the embodiments of the present invention searches the flow diagram of topic method；

Fig. 3 is that another kind disclosed by the embodiments of the present invention takes pictures and searches the flow diagram of topic method；

Fig. 4 is the interaction schematic diagram of a kind of hand-held photographing device and electronic equipment disclosed by the embodiments of the present invention；

Fig. 5 is the user interface schematic diagram of a kind of electronic equipment output script information disclosed by the embodiments of the present invention；

Fig. 6 is a kind of structure diagram of hand-held photographing device disclosed by the embodiments of the present invention；

Fig. 7 is the structure diagram of another hand-held photographing device disclosed by the embodiments of the present invention；

Fig. 8 is the structure diagram of another hand-held photographing device disclosed by the embodiments of the present invention；

Fig. 9 is that a kind of take pictures disclosed by the embodiments of the present invention searches the structure diagram of topic system；

Figure 10 is a kind of part-structure block diagram of the search pen of hand-held photographing device disclosed by the embodiments of the present invention.

Specific embodiment

Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.Based on this Embodiment in invention, the every other reality that those of ordinary skill in the art are obtained without making creative work Example is applied, shall fall within the protection scope of the present invention.

It should be noted that term " comprising " and " having " and their any changes in the embodiment of the present invention and attached drawing Shape, it is intended that cover non-exclusive include.Such as contain the process of series of steps or unit, method, system, product or The step of equipment is not limited to list or unit, but optionally further include the step of not listing or unit or optional Ground is further included for the intrinsic other steps of these processes, method, product or equipment or unit.

It takes pictures the embodiment of the invention discloses one kind and searches topic method, system and hand-held photographing device, can improve and search topic effect Rate and search topic accuracy rate.It is described in detail separately below.

Referring to Fig. 1, Fig. 1 is one kind disclosed by the embodiments of the present invention take pictures search topic systematic difference schematic diagram.Such as Fig. 1 institutes Taking pictures of showing searches topic system and includes electronic equipment (for example, tablet computer, Jia Jiaoji, smart mobile phone etc.), server and hand Hold photographing device (for example, search pen, wand etc.).Wherein, hand-held photographing device can be after shooting obtains examination question image The examination question image is sent to electronic equipment, so that electronic equipment intuitively shows the examination question image, is treated so that user clicks Examination question is detected, and then, server can get the target test question to be checked in the examination question image from electronic equipment, and in mesh The answer information of test question to be checked is marked after search complete, the answer information of target test question to be checked is sent to electronic equipment. As it can be seen that it is shown in FIG. 1 take pictures search topic system can be obtained by hand-held photographing device examination question image be sent to electronic equipment and After target test question to be checked has been clicked in the examination question image shown in user from electronic equipment, which is retrieved by server and is treated It detects the answer information of examination question and the answer information is sent back into electronic equipment and checked for user, simplify and search topic step, improve Search topic efficiency.

Embodiment one

Referring to Fig. 2, Fig. 2, which is a kind of takes pictures disclosed by the embodiments of the present invention, searches the flow diagram of topic method.Such as Fig. 2 institutes Show that this is taken pictures to search topic method and may comprise steps of：

101st, it holds photographing device response frame choosing instruction and dominant frame is projected on the projection surface where examination question；Wherein, it is dominant Frame selects at least one of test question to be checked in projection surface for frame.

In the embodiment of the present invention, hand-held photographing device (for example, search pen) can respond frame choosing instruction, and frame choosing instruction can With by the shooting key triggering of user's flicking.Wherein, shooting key is the physical button set on hand-held photographing device, which presses Key can be the nested structure for including double buttons (it should be noted that double buttons include the first button and the second button), double to press The second button in key is nested in the first button, and in the case where user does not perform any operation for shooting key, and second There are spacing on the inside of the outside of button and the first button, i.e., when user carries out flicking operation to shooting key, flicking first is pressed Key can trigger the corresponding sensor of the first button without triggering the corresponding sensor of the second button.

In the embodiment of the present invention, hold photographing device projection can be laser, and laser (can then be needed with dominant frame Bright, which can be that the light beam of laser is incident upon the laser frame of the specific shape obtained on paper) form present On the projection surface (for example, paper) where examination question.In addition, it is necessary to explanation, hand-held photographing device can be in projection laser Camera can also be opened after laser is projected by opening camera before, and the embodiment of the present invention is not construed as limiting.

In the embodiment of the present invention, hold photographing device projection can be laser, then laser (can not only be needed with dominant frame It is noted that the shape of the dominant frame can be rectangular or square or circle etc., the embodiment of the present invention is not construed as limiting) shape Formula is presented on the projection surface where examination question, and hand-held photographing device also is able to carry out laser focusing before photographing operation, wherein, Laser is focused compared with manual focus, the anti-shudder performance of laser focusing is more preferable and focusing speed faster.So perform step 101 On the projection surface where examination question dominant frame can be projected by responding frame choosing instruction improve shooting effect and shooting efficiency.

Whether the projecting direction for the 102nd, holding the dominant frame of photographing device detection projection is vertical with projection surface；Wherein, hand-held racket It is identical with projecting direction according to the direction of taking pictures of the camera of equipment, if so, step 104 is performed, if not, performing step 103.

In the embodiment of the present invention, hold photographing device and include gyroscope and gravity sensor etc..Frame is responded in step 101 After choosing instruction shows dominant frame on the projection surface where examination question, hand-held photographing device can pass through the gyroscope and gravity Whether sensor detection projecting direction is vertical with projection surface.Wherein, due to hold photographing device camera take pictures direction with Projecting direction is identical, so, the direction of taking pictures of camera is also vertical with projection surface when projecting direction is vertical with projection surface.

In the embodiment of the present invention, grenade instrumentation can be provided in hand photographing device, which can be arranged on and take the photograph As head periphery pre-determined distance (for example, 5mm) in, can also be built in camera, the embodiment of the present invention is not construed as limiting.Institute With the examination question of hand-held photographing device shooting can be improved by detecting whether projecting direction is vertical with projection surface by performing step 102 The clarity of image, and then improve the accuracy rate for searching topic.

103rd, photographing device adjustment projecting direction is held until projecting direction is vertical with projection surface.

In the embodiment of the present invention, after step 102 detects projecting direction and projection surface out of plumb, photographing device is held The within angle of projecting direction and projection surface can be calculated by the number of degrees of gyroscope and gravity sensor, and pass through rotation and take the photograph As the direction of head is (it should be noted that when hand-held photographing device controls camera to be rotated the process to convert direction of taking pictures In, projecting direction also therewith change and it is always consistent with direction of taking pictures) compensate the within angle until projecting direction with projection The within angle in face is in 90 degree；Hand-held photographing device can also prompt user manual ambulatory handheld by way of exporting prompt message For photographing device so that projecting direction is vertical with projection surface, i.e. the direction of taking pictures of camera is vertical with projection surface, and the present invention is implemented Example is not construed as limiting.Can be vertical with projection surface until projecting direction by adjusting projecting direction so performing step 103, it improves The clarity of examination question image captured by hand-held photographing device.

104th, it holds photographing device and dominant frame region is shot by camera, to obtain examination question image；Wherein, examination question Image includes at least one of test question to be checked.

In the embodiment of the present invention, until step 103 adjustment projecting direction is vertical with projection surface until projecting direction, hold Region (the frame inner region of i.e. dominant frame) where photographing device can shoot dominant frame obtains examination question image.

As an alternative embodiment, be additionally provided on hand-held photographing device enlargement key for amplifying dominant frame and For reducing the diminution key of dominant frame, amplify/reduce the frame inner region of dominant frame when shooting convenient for user, improve use It experiences at family.

105th, it holds photographing device and sends examination question image to electronic equipment, so that electronic equipment exports examination question image and will Target test question to be checked in examination question image is uploaded to server to obtain the corresponding target answer information of target test question to be checked, Target test question to be checked includes one or multiple tracks test question to be checked in examination question image.

In the embodiment of the present invention, after step 104 shoots linear frame region acquisition examination question image by camera, Hand-held photographing device can be by the examination question image transmitting to electronic equipment.Wherein, though electronic equipment be in put out screen state or In bright screen state, holding photographing device can be by examination question image transmitting to electronic equipment so that electronic equipment exports examination question Image.It should be noted that electronic equipment examination question when electronic equipment is in and puts out screen state and in hand-held photographing device After image, electronic equipment can automatically bright screen and show by hold photographing device transmission examination question image, prevent hand to reach Prompting message in machine/tablet computer interferes user the purpose for searching topic efficiency to improve user.And then user can be with The examination question image shown by electronic equipment, which clicks the target test question to be checked for needing to obtain target answer information, (needs what is illustrated It is that it can also be together multiple tracks that test question to be checked, which can be).When user completes to click the operation of target test question to be checked, after The server of platform can obtain target test question to be checked from electronic equipment and carry out analysis retrieval and obtain and target test to be checked Corresponding target answer information is inscribed, then the target answer information is sent to electronic equipment, so that user checks.

In the embodiment of the present invention, after target answer information is sent to electronic equipment by the server on backstage, electronics is set It is standby to be included target answer information in wicket by exporting the form of wicket.Wherein, electronic equipment output is small The area of window be less than examination question image area, also, electronic equipment output wicket will be superimposed upon on examination question image and It is shown in the side of target test question to be checked.

In the embodiment of the present invention, when the examination question image that user is shown for electronic equipment carries out selection operation, electronics is set It is standby to detect the click location of user and the location of corresponding target test question to be checked is calculated according to the click location Domain.Wherein, when user carries out a selection operation and electronic equipment identifies the region of target test question to be checked, electronic equipment Screen on can using click location for the center of circle cause pre-set color (it should be noted that pre-set color different from screen color) into Row diffusion, until the region of target test question to be checked is completely covered (it should be noted that when target is to be checked pre-set color When the region of test question is predetermined color and is completely covered, user being capable of normal reading target test question to be checked) until, entirely Overlay area is oval and includes target test question to be checked.So performing step 105 can be tried by being sent to electronic equipment Inscribe image so that electronic equipment output examination question image and by the target test question to be checked in examination question image be uploaded to server with The corresponding target answer information of target test question to be checked is obtained, simplifies the step of searching topic of taking pictures, raising, which is taken pictures, searches the efficiency of topic.Separately Outside, can solve with electronic equipment take pictures search topic when, electronic equipment is caused by sudden prompting message to taking pictures The technical issues of searching the interference of topic can further improve to take pictures and search topic efficiency.

As it can be seen that implementing the described methods of Fig. 2, hand-held photographing device can be by responding frame choosing instruction where examination question Dominant frame is projected on projection surface to improve shooting effect and shooting efficiency；In addition, hand-held photographing device also is able to throw by detecting Penetrate whether dominant frame projecting direction is vertical with projection surface, improve the clarity of the examination question image of hand-held photographing device shooting, and then Improve the accuracy rate for searching topic；In addition, hand-held photographing device also is able to by adjusting projecting direction until projecting direction and projection surface Vertically, the clarity of the examination question image captured by hand-held photographing device is improved；In addition, hand-held photographing device also is able to by electricity Sub- equipment sends examination question image, so that electronic equipment exports examination question image and will be on the target test question to be checked in examination question image Server is reached to obtain the corresponding target answer information of target test question to be checked, simplifies the step of searching topic of taking pictures, raising is taken pictures Search the efficiency of topic.In addition, this, which takes pictures to search topic method and can not only improve to take pictures, searches efficiency and the accuracy of topic, moreover it is possible to by using Hand-held photographing device carries out the operation of bat topic to solve the problems, such as to be interfered by prompt message with electronic equipment shooting, can be further Raising take pictures and search topic efficiency.It searches topic efficiency so implementing the described methods of Fig. 2 and can improve and searches topic accuracy rate.

Embodiment two

It takes pictures referring to Fig. 3, Fig. 3 is another kind disclosed by the embodiments of the present invention and searches the flow diagram of topic method.Such as Fig. 3 Shown this, which is taken pictures, to be searched topic method and may comprise steps of：

201st, the first pressure that photographing device senses user and act on shooting key by holding the shooting key of photographing device is held Force value.

In the embodiment of the present invention, pressure sensor can be included by holding in photographing device, and hand-held photographing device can pass through First pressure value is calculated in the reading of pressure sensor.

202nd, photographing device is held to determine belonging to first pressure value from preset at least one pressure threshold range First object pressure threshold range.

203rd, it holds photographing device and judges whether first object pressure threshold range is first pressure threshold range, if It is step 204 to be performed, if not, terminating this flow.

In the embodiment of the present invention, first pressure is determined from preset at least one pressure threshold range in step 202 After first object pressure threshold range belonging to value, hand-held photographing device can be by judging first object pressure threshold range Whether it is that first pressure threshold range obtains corresponding instruction, i.e., if so, step 204 is performed, if not, terminating this stream Journey.

In the embodiment of the present invention, in addition to including first in preset at least one pressure threshold range in hand-held photographing device Except pressure threshold range, third pressure threshold range can also be included.When hand-held photographing device is obtained by pressure sensor Pressure value when belonging to third pressure threshold range, hand-held photographing device does not perform any operation, that is, gives tacit consent to the pressure value to use Family holds the pressure value that photographing device obtains after accidentally touching shooting key.Wherein, third pressure threshold range is less than first pressure threshold value Range.So user experience can be improved, is promoted hand-held by holding the anti-error touch function in photographing device by performing step 202 The availability of photographing device.

204th, it holds photographing device response frame choosing instruction and dominant frame is projected on the projection surface where examination question；Wherein, it is dominant Frame selects at least one of test question to be checked in projection surface for frame.

Whether the projecting direction for the 205th, holding the dominant frame of photographing device detection projection is vertical with projection surface；Wherein, hand-held racket It is identical with projecting direction according to the direction of taking pictures of the camera of equipment, if so, step 207 is performed, if not, performing step 206.

206th, photographing device adjustment projecting direction is held until projecting direction is vertical with projection surface.

207th, the second pressure value that the hand-held photographing device senses user and act on shooting key by shooting key.

208th, photographing device is held to determine belonging to second pressure value from preset at least one pressure threshold range Second target pressure threshold range.

209th, it holds photographing device and judges whether the second target pressure threshold range is second pressure threshold range, wherein, Any pressure value in second pressure threshold range is more than any pressure value in first pressure threshold range, if so, performing Step 210, if not, performing step 207.

In the embodiment of the present invention, any pressure value in second pressure threshold range is more than in first pressure threshold range Any pressure value, and any pressure value in first pressure threshold range is more than any pressure in the range of third pressure threshold Value, i.e. any pressure value in second pressure threshold range are more than any pressure value in the range of third pressure threshold.

In embodiments of the present invention, this take pictures search topic method include step 210 and step 211, for step 210 and step It is no longer superfluous to please refer to the detailed description for step 104 and step 105, the embodiment of the present invention in embodiment one for 211 description It states.

It is searched in topic method as an alternative embodiment, this is taken pictures, holds photographing device detection projecting direction with throwing It whether vertical penetrates face, includes the following steps：

Hand-held photographing device obtains the contour shape that dominant frame is presented on projection surface by camera；

Hand-held photographing device judges whether contour shape is identical with preset nominal contour shape, if it is not, then determining to throw It penetrates direction and projection surface out of plumb and adjusts projecting direction until projecting direction is vertical with projection surface.

As it can be seen that implement the optional embodiment, it can be by judging the shape of dominant frame on projection surface and will project The shape of dominant frame is compared with nominal contour shape on face, is obtained the opposite launching position of projecting direction and projection surface, is simplified Detecting step reduces the hand-held photographing device detection projecting direction realization difficulty whether vertical with projection surface.

As it can be seen that the described method of implementing Fig. 3, hand-held photographing device can be by responding frame choosing instruction where examination question Dominant frame is projected on projection surface；In addition, whether hand-held photographing device also is able to vertical with projection surface by detecting projecting direction, carry The clarity of the examination question image of the hand-held photographing device shooting of height, and then improve the accuracy rate for searching topic；In addition, hand-held photographing device is also Can be vertical with projection surface until projecting direction by adjusting projecting direction, improve the examination question image captured by hand-held photographing device Clarity；In addition, hand-held photographing device also is able to by sending examination question image to electronic equipment, so that electronic equipment output examination Topic image and that the target test question to be checked in examination question image is uploaded to server is corresponding to obtain target test question to be checked Target answer information simplifies the step of searching topic of taking pictures, and raising, which is taken pictures, searches the efficiency of topic.In addition, this take pictures search topic method can not only It is enough improve to take pictures searches efficiency and the accuracy of topic, moreover it is possible to by using hand-held photographing device carry out bat topic operation avoid with mobile phone/ The interference of prompting message that mobile phone/tablet is pushed when tablet is shot, can further improve to take pictures and search topic efficiency；In addition, Hand-held photographing device also is able to, by holding the anti-error touch function in photographing device, improve user experience, promotion hand-held racket, which shines, to be set Standby availability；In addition, hand-held photographing device also is able to by judging the shape of dominant frame on projection surface and will be on projection surface The shape of dominant frame is compared with nominal contour shape, is obtained the opposite launching position of projecting direction and projection surface, is simplified detection Step reduces the hand-held photographing device detection projecting direction realization difficulty whether vertical with projection surface.So implementing Fig. 3 institute The method of description, which can further improve, searches topic efficiency and searches topic accuracy rate.

Referring to Fig. 4, Fig. 4 is a kind of hand-held photographing device disclosed by the embodiments of the present invention interacts signal with electronic equipment Figure.As shown in figure 4, hand-held photographing device can show dominant frame on the projection surface where examination question, included in the dominant frame Multiple tracks examination question.Hand-held photographing device can also be in display box be had taken examination question (i.e. hand-held photographing device obtains examination question Image) after, which is sent to electronic equipment, then show the examination question image by electronic equipment, so that user clicks Target test question to be checked.As it can be seen that the interaction schematic diagram of hand-held photographing device shown in Fig. 4 and electronic equipment can pass through hand-held racket According to the interaction between equipment and electronic equipment, raising, which is taken pictures, searches efficiency and the accuracy of topic；In addition, hand-held racket shown in Fig. 4 shines The interaction schematic diagram of equipment and electronic equipment can also carry out the operation of bat topic to solve to be set with electronics by using hand-held photographing device The problem of standby shooting is interfered by prompt message, can further improve to take pictures and search topic efficiency.

Referring to Fig. 5, Fig. 5 is user circle of a kind of electronic equipment output script information disclosed by the embodiments of the present invention Face schematic diagram.Examination question image is shown on the screen of electronic equipment as shown in Figure 5, also, 4 are included in the examination question image Examination question." the 2nd topic " shown in fig. 5 that is outlined with class rectangle frame is the target test question to be checked chosen, and electronic equipment is " the The other rectangle wicket exported of 2 topics " is target answer information, wherein, color is different from examination question image in the frame of class rectangle frame Rest part color, also, target answer information include target test question to be checked corresponding to answer parsing, thinking inspire with And conclude comment.

Embodiment three

Referring to Fig. 6, Fig. 6 is a kind of structure diagram of hand-held photographing device disclosed by the embodiments of the present invention.Such as Fig. 6 institutes Show, which can include：

It focuses positioning unit 601, instructs and be incident upon on the projection surface where examination question for responding frame choosing and project dominant frame； Wherein, dominant frame selects at least one of test question to be checked in projection surface for frame.

In the embodiment of the present invention, in the embodiment of the present invention, focusing positioning unit 601 (for example, search pen) can respond frame Choosing instruction, frame choosing instruction can shoot key (not drawing in figure 6) by user's flicking and trigger.Wherein, shooting key is hand-held racket According to the physical button set in equipment, which can be (it should be noted that double buttons include comprising double buttons First button and the second button) nested structure, the second button in double buttons is nested in the first button, and in user's not needle In the case of performing any operation to shooting key, there are spacing on the inside of the outside of the second button and the first button, that is, work as user When carrying out flicking operation to shooting key, the first button of flicking can trigger the corresponding sensor of the first button and be pressed without triggering second The corresponding sensor of key.

In the embodiment of the present invention, hold photographing device projection can be laser, and laser (can then be needed with dominant frame Bright, which can be that the light beam of laser is incident upon the laser frame of the specific shape obtained on paper) form present On the projection surface (for example, paper) where examination question.In addition, it is necessary to explanation, focusing positioning unit 601 can swash in projection Camera is opened before light to open camera after laser is projected, and the embodiment of the present invention is not construed as limiting.

In the embodiment of the present invention, hold photographing device projection can be laser, then laser (can not only be needed with dominant frame It is noted that the shape of the dominant frame can be rectangular or square or circle etc., the embodiment of the present invention is not construed as limiting) shape Formula is presented on the projection surface where examination question, additionally it is possible to laser focusing is carried out before photographing operation, wherein, laser focusing and hand Dynamic focusing is compared, the anti-shudder performance of laser focusing is more preferable and focusing speed faster.It can so performing focusing positioning unit 601 It instructs and projects laser by responding frame choosing and improve shooting effect and shooting efficiency.

In the embodiment of the present invention, focusing positioning unit 601 responds frame choosing instruction and is shown on the projection surface where examination question After dominant frame, triggering vertical detection unit 602 starts.

Vertical detection unit 602, it is whether vertical with projection surface for detecting the projecting direction of the dominant frame of projection；Wherein, hand The direction of taking pictures for holding the camera of photographing device is identical with projecting direction.

In the embodiment of the present invention, hand-held photographing device includes gyroscope (not drawing in figure 6) and gravity sensor (not drawing in figure 6) etc., vertical detection unit 602 can detect projecting direction with throwing by the gyroscope and gravity sensor Whether vertical penetrate face.Wherein, since the direction of taking pictures for the camera for holding photographing device is identical with projecting direction, so, work as throwing It is also vertical with projection surface with the direction of taking pictures of projection surface camera when vertical to penetrate direction.

In the embodiment of the present invention, grenade instrumentation can be provided in hand photographing device, which can be arranged on and take the photograph As head periphery pre-determined distance (for example, 5mm) in, can also be built in camera, the embodiment of the present invention is not construed as limiting.Institute With whether can by detect projecting direction with projection surface vertical, improve hand-held photographing device and clap if performing vertical detection unit 602 The clarity of examination question image taken the photograph, and then improve the accuracy rate for searching topic.

In the embodiment of the present invention, if vertical detection unit 602 detects projecting direction and projection surface out of plumb, trigger angle Correction unit 603 starts.

Angle correcting unit 603, for vertical detection unit 602 detect projecting direction and projection surface out of plumb it Afterwards, projecting direction is adjusted until projecting direction is vertical with projection surface.

In the embodiment of the present invention, angle correcting unit 603 can be calculated by the number of degrees of gyroscope and gravity sensor Go out the within angle of projecting direction and projection surface, and pass through the direction for rotating camera (it should be noted that working as angle correcting unit During 603 control cameras are rotated to convert direction of taking pictures, projecting direction is also changed and is begun with direction of taking pictures therewith It is consistent eventually) within angle is compensated until the within angle of projecting direction and projection surface is in 90 degree；Angle correcting unit 603 may be used also Prompt user that manual ambulatory handheld photographing device is so that projecting direction hangs down with projection surface in a manner of by exporting prompt message Directly, i.e. the direction of taking pictures of camera is vertical with projection surface, and the embodiment of the present invention is not construed as limiting.So perform angle correcting unit 603 can be vertical with projection surface until projecting direction by adjusting projecting direction, improves the examination question captured by hand-held photographing device The clarity of image.

In the embodiment of the present invention, projecting direction is adjusted until projecting direction is vertical with projection surface in angle correcting unit 603 Later, hand-held hardware photographing unit 604 is triggered to start.

Hand-held hardware photographing unit 604, shoots dominant frame region, to obtain examination question image for passing through camera； Wherein, examination question image includes at least one of test question to be checked.

In the embodiment of the present invention, hand-held hardware photographing unit 604 can shoot region where dominant frame (i.e. dominant frame Frame inner region) obtain examination question image.

In the embodiment of the present invention, dominant frame region is shot by camera in hand-held hardware photographing unit 604 and is obtained After examination question image, triggering transmitting element 605 starts.

Transmitting element 605, for sending examination question image to electronic equipment, so that electronic equipment exports examination question image and will Target test question to be checked in examination question image is uploaded to server to obtain the corresponding target answer information of target test question to be checked, Target test question to be checked includes one or multiple tracks test question to be checked in examination question image.

In the embodiment of the present invention, transmitting element 605 can be by the examination question image transmitting to electronic equipment.Wherein, it is no matter electric Sub- equipment, which is in, to be put out screen state and is in bright screen state, and transmitting element 605 can be by examination question image transmitting to electronic equipment So that electronic equipment exports examination question image.It should be noted that when electronic equipment be in put out screen state when and hand-held racket shine Equipment after electronic equipment examination question image, electronic equipment can automatically bright screen and show by hold photographing device transmission Examination question image, with reach prevent the prompting message in mobile phone/tablet computer from being interfered to user with improve user search topic effect The purpose of rate.And then user can click the mesh for needing to obtain target answer information by the examination question image that electronic equipment is shown Mark test question to be checked (it should be noted that test question to be checked can also be together multiple tracks).When user completes to click mesh When marking the operation of test question to be checked, the server on backstage can obtain target test question to be checked and be analyzed from electronic equipment Retrieval obtains target answer information corresponding with target test question to be checked, then the target answer information is sent to electronic equipment, So that user checks.

In the embodiment of the present invention, when the examination question image that user is shown for electronic equipment carries out selection operation, electronics is set It is standby to detect the click location of user and the location of corresponding target test question to be checked is calculated according to the click location Domain.Wherein, when user carries out a selection operation and electronic equipment identifies the region of target test question to be checked, electronic equipment Screen on can be the center of circle using click location so that pre-set color (it should be noted that pre-set color is different from screen color) It is diffused, until the region of target test question to be checked is completely covered (it should be noted that when target is treated pre-set color When the region of detection examination question is predetermined color and is completely covered, user being capable of normal reading target test question to be checked) until, it is whole A overlay area is oval and includes target test question to be checked.It can be by electronic equipment so performing transmitting element 605 Examination question image is sent, so that electronic equipment exports examination question image and the target test question to be checked in examination question image is uploaded to clothes Business device simplifies the step of searching topic of taking pictures, raising, which is taken pictures, searches topic to obtain the corresponding target answer information of target test question to be checked Efficiency.In addition, can solve with electronic equipment take pictures search topic when, electronic equipment is caused by sudden prompting message To take pictures the interference for searching topic the technical issues of, can further improve to take pictures and search topic efficiency.

Further combined with Fig. 6, if vertical detection unit 602 detects that projecting direction is vertical with projection surface, triggering is hand-held Hardware photographing unit 604 starts.

As it can be seen that implementing in the described hand-held photographing devices of Fig. 6, focusing positioning unit 601 can be referred to by responding frame choosing Order projects dominant frame to improve shooting effect and shooting efficiency on the projection surface where examination question；Vertical detection unit 602 can By detecting whether projecting direction is vertical with projection surface, the clarity for the examination question image for holding photographing device shooting is improved, and then Improve the accuracy rate for searching topic；Angle correcting unit 603 can be vertical with projection surface until projecting direction by adjusting projecting direction, Improve the clarity of the examination question image captured by hand-held photographing device；Transmitting element 605 can be tried by being sent to electronic equipment Inscribe image so that electronic equipment output examination question image and by the target test question to be checked in examination question image be uploaded to server with The corresponding target answer information of target test question to be checked is obtained, simplifies the step of searching topic of taking pictures, raising, which is taken pictures, searches the efficiency of topic.Separately Outside, this, which takes pictures to search topic method and can not only improve to take pictures, searches efficiency and the accuracy of topic, moreover it is possible to by using hand-held photographing device The operation of bat topic is carried out to solve the problems, such as to be interfered by prompt message with electronic equipment shooting, further can improve to take pictures and search Inscribe efficiency.It searches topic efficiency so implementing the described hand-held photographing devices of Fig. 6 and can improve and searches topic accuracy rate.

Example IV

Referring to Fig. 7, Fig. 7 is the structure diagram of another hand-held photographing device disclosed by the embodiments of the present invention.Wherein, Hand-held photographing device shown in Fig. 7 is that hand-held photographing device as shown in Figure 6 optimizes.It is held with shown in fig. 6 Photographing device compares, and hand-held photographing device shown in Fig. 7 can also include：

Sensing unit 606 projects for responding frame choosing instruction in focusing positioning unit 601 on the projection surface where examination question Before dominant frame, the first pressure value of shooting key is acted on by the shooting key sensing user for holding photographing device.

In the embodiment of the present invention, pressure sensor can be included by holding in photographing device, and sensing unit 606 can pass through pressure First pressure value is calculated in the reading of force snesor.

In the embodiment of the present invention, bat is acted on by holding the shooting key sensing user of photographing device in sensing unit 606 It takes the photograph after the first pressure value of key, triggering determination unit 607 starts.

Determination unit 607, for being determined belonging to first pressure value from preset at least one pressure threshold range First object pressure threshold range.

In the embodiment of the present invention, first is determined from preset at least one pressure threshold range in determination unit 607 After first object pressure threshold range belonging to pressure value, triggering pressure judging unit 608 starts.

Pressure judging unit 608, for judging whether first object pressure threshold range is first pressure threshold range.

In the embodiment of the present invention, in addition to including first in preset at least one pressure threshold range in hand-held photographing device Except pressure threshold range, third pressure threshold range can also be included.When pressure judging unit 608 is obtained by pressure sensor When the pressure value obtained belongs to third pressure threshold range, hand-held photographing device does not perform any operation, that is, giving tacit consent to the pressure value is User holds the pressure value that photographing device obtains after accidentally touching shooting key.Wherein, third pressure threshold range is less than first pressure threshold It is worth range.So user's body can be improved by holding the anti-error touch function in photographing device by performing pressure judging unit 608 It tests, promotes the availability of hand-held photographing device.

In the embodiment of the present invention, first object pressure threshold ranging from first pressure is judged in pressure judging unit 608 After threshold range, triggering focusing positioning unit 601 starts.

Focusing positioning unit 601, specifically for judging first object pressure threshold ranging from pressure judging unit 608 After first pressure threshold range, response frame choosing instruction projects dominant frame on the projection surface where examination question.

Sensing unit 606 is additionally operable to shoot dominant frame region by camera in hand-held hardware photographing unit 604, With the second pressure value for before obtaining examination question image, sensing user by shooting key and acting on shooting key.

In the embodiment of the present invention, the second pressure of shooting key is acted on by shooting key sensing user in sensing unit 606 After value, triggering determination unit 607 starts.

Determination unit 607 is additionally operable to determine belonging to second pressure value from preset at least one pressure threshold range The second target pressure threshold range.

In the embodiment of the present invention, second is determined from preset at least one pressure threshold range in determination unit 607 After the second target pressure threshold range belonging to pressure value, triggering pressure judging unit 608 starts.

Pressure judging unit 608 is additionally operable to judge whether the second target pressure threshold range is second pressure threshold range.

In the embodiment of the present invention, the second target pressure threshold ranging from second pressure threshold is judged in pressure judging unit 608 It is worth after range, triggers hand-held hardware photographing unit 604 and start.

Hand-held hardware photographing unit 604, specifically for judging the second target pressure threshold model in pressure judging unit 608 It encloses after second pressure threshold range, dominant frame region to be shot by camera, to obtain examination question image；Second pressure Any pressure value in threshold range is more than any pressure value in first pressure threshold range.

As it can be seen that implementing in the described hand-held photographing devices of Fig. 7, focusing positioning unit 601 can be referred to by responding frame choosing Order projects dominant frame to improve shooting effect and shooting efficiency on the projection surface where examination question；Vertical detection unit 602 can By detecting whether projecting direction is vertical with projection surface, the clarity for the examination question image for holding photographing device shooting is improved, and then Improve the accuracy rate for searching topic；Angle correcting unit 603 can be vertical with projection surface until projecting direction by adjusting projecting direction, Improve the clarity of the examination question image captured by hand-held photographing device；Transmitting element 605 can be tried by being sent to electronic equipment Inscribe image so that electronic equipment output examination question image and by the target test question to be checked in examination question image be uploaded to server with The corresponding target answer information of target test question to be checked is obtained, simplifies the step of searching topic of taking pictures, raising, which is taken pictures, searches the efficiency of topic.Separately Outside, this, which takes pictures to search topic method and can not only improve to take pictures, searches efficiency and the accuracy of topic, moreover it is possible to by using hand-held photographing device The interference of prompting message that mobile phone/tablet is pushed when bat topic operation avoids being shot with mobile phone/tablet is carried out, it can be further Raising, which is taken pictures, searches topic efficiency；Pressure judging unit 608 can improve user's body by holding the anti-error touch function in photographing device It tests, promotes the availability of hand-held photographing device.It is searched so implementing the described hand-held photographing devices of Fig. 7 and can further improve It inscribes efficiency and searches topic accuracy rate.

Embodiment five

Referring to Fig. 8, Fig. 8 is the structure diagram of another hand-held photographing device disclosed by the embodiments of the present invention.Wherein, Hand-held photographing device shown in Fig. 8 is that hand-held photographing device as shown in Figure 7 optimizes.It is held with shown in Fig. 7 Photographing device compares, and in hand-held photographing device shown in Fig. 8, vertical detection unit 602 can include：

Subelement 6021 is obtained, for passing through the contour shape that camera obtains dominant frame and presented on projection surface.

In the embodiment of the present invention, the wheel that dominant frame is presented on projection surface is obtained by camera obtaining subelement 6021 After profile shape, triggering judgment sub-unit 6022 starts.

Judgment sub-unit 6022, for judging whether contour shape is identical with preset nominal contour shape.

In the embodiment of the present invention, judgment sub-unit 6022 can be by judging the shape of dominant frame on projection surface and will throw It penetrates the shape of dominant frame on face to compare with nominal contour shape, obtains the opposite launching position of projecting direction and projection surface, simplify Detecting step reduces the hand-held photographing device detection projecting direction realization difficulty whether vertical with projection surface.

In the embodiment of the present invention, contour shape and preset nominal contour shape not phase are judged in judgment sub-unit 6022 With after, triggering determination subelement 6023 starts.

Determination subelement 6023, for judging contour shape and preset nominal contour shape in judgment sub-unit 6022 After differing, projecting direction and projection surface out of plumb are determined.

If it is determined that subelement 6023 determines projecting direction and projection surface out of plumb, then trigger determination subelement 6023 and start.

Angle correcting unit 603, specifically for determination subelement 6023 determine projecting direction and projection surface out of plumb it Afterwards, projecting direction is adjusted until projecting direction is vertical with projection surface.

Hand-held hardware photographing unit 604, specifically for detecting projecting direction and the projection in vertical detection unit 602 After face is vertical, dominant frame region is shot by camera, to obtain examination question image.

Further combined with Fig. 7, however, it is determined that subelement 6023 determines that projecting direction is vertical with projection surface, then triggers hand-held hardware Photographing unit 604 starts.

As it can be seen that implementing in the described hand-held photographing devices of Fig. 8, focusing positioning unit 601 can be referred to by responding frame choosing Order projects dominant frame to improve shooting effect and shooting efficiency on the projection surface where examination question；Vertical detection unit 602 can By detecting whether projecting direction is vertical with projection surface, the clarity for the examination question image for holding photographing device shooting is improved, and then Improve the accuracy rate for searching topic；Angle correcting unit 603 can be vertical with projection surface until projecting direction by adjusting projecting direction, Improve the clarity of the examination question image captured by hand-held photographing device；Transmitting element 605 can be tried by being sent to electronic equipment Inscribe image so that electronic equipment output examination question image and by the target test question to be checked in examination question image be uploaded to server with The corresponding target answer information of target test question to be checked is obtained, simplifies the step of searching topic of taking pictures, raising, which is taken pictures, searches the efficiency of topic.Separately Outside, this, which takes pictures to search topic method and can not only improve to take pictures, searches efficiency and the accuracy of topic, moreover it is possible to by using hand-held photographing device The interference of prompting message that mobile phone/tablet is pushed when bat topic operation avoids being shot with mobile phone/tablet is carried out, it can be further Raising, which is taken pictures, searches topic efficiency；Pressure judging unit 608 can improve user's body by holding the anti-error touch function in photographing device It tests, promotes the availability of hand-held photographing device；Judgment sub-unit 6022 can be by judging the shape of dominant frame on projection surface And compare the shape of frame dominant on projection surface with nominal contour shape, obtain the opposite projection position of projecting direction and projection surface It puts, simplifies detecting step, reduce the hand-held photographing device detection projecting direction realization difficulty whether vertical with projection surface.Institute To implement the described hand-held photographing devices of Fig. 8 and can further improve to search topic efficiency and search topic accuracy rate.

Embodiment six

Referring to Fig. 9, it is that a kind of take pictures disclosed by the embodiments of the present invention searches the structure diagram of topic system that Fig. 9, which is Fig. 9,.Such as Shown in Fig. 9, this, which is taken pictures, searches topic system and can include hand-held photographing device 901, electronic equipment 902 and server 903；

Hand-held photographing device 901 such as the described hand-held photographing device 901 of three~embodiment of embodiment five；

Electronic equipment 902 includes：First Transmit-Receive Unit 9021, display unit 9022 and examination question detection unit 9023；

Server 903 includes：Second Transmit-Receive Unit 9031 and search unit 9032.

Wherein, the first Transmit-Receive Unit 9021, for receiving the examination question image that hand-held photographing device 901 is sent.

Display unit 9022 shows that examination question image and output show that the first Transmit-Receive Unit 9021 receives for exporting The corresponding target answer information of target test question to be checked sent by the second Transmit-Receive Unit 9031 in server 903.

Examination question detection unit 9023, after exporting in display unit 9022 and showing examination question image, according to user's operation Target test question to be checked is detected from examination question image, target test question to be checked is to be checked including one in examination question image or multiple tracks Test question.

First Transmit-Receive Unit 9021 is additionally operable to the target test question to be checked in examination question image being sent to the second of server Transmit-Receive Unit 9031.

Second Transmit-Receive Unit 9031, for receiving the examination question image of the first Transmit-Receive Unit 9021 of electronic equipment 902 upload In target test question to be checked.

Search unit 9032, for searching for the corresponding target answer information of target test question to be checked.

Second Transmit-Receive Unit 9031 is additionally operable to feed back to target answer information the first Transmit-Receive Unit of electronic equipment 902 9021。

As it can be seen that implement Fig. 9 it is described take pictures search topic system can by hand-held photographing device 901, electronic equipment 902 with And the interaction between 903 three of server, raising, which is taken pictures, searches efficiency and the accuracy of topic.

About more explanations of electronic equipment 902 and server 903, it is referred to embodiment of the method and hand-held racket shines and sets Being discussed in detail in standby 901 embodiments, details are not described herein.

Embodiment seven

Hand-held photographing device provided in an embodiment of the present invention can include search pen, wand, photographing pen etc. any one Hand-held photographing device.For searching for pen, Figure 10 is illustrated that and the part-structure of search pen provided in an embodiment of the present invention Block diagram.With reference to figure 10, which may include：Input unit 1010, memory 1020, photographing unit 1030, processor 1040, 1060 grade components of wireless communication module 1050 and power supply.It will be understood by those skilled in the art that the search pen knot shown in Figure 10 Structure does not form the restriction to searching for pen, can include than illustrate more or fewer components either combine certain components or Different component arrangements.

The each component parts for searching for pen is specifically introduced with reference to Figure 10：

Input unit 1010 can be used for receiving the number inputted or character information and generation and the user setting of search pen And the key signals input that function control is related.Specifically, input unit 1010 can include but are not limited to be set to search Physical button 1011 (such as shoot button, switch key) on pen etc., available for the pressing operation (ratio of detection user on it Such as user using finger, hand-held press the operation of any suitable object of equipment or attachment in physical button 1011), and root Corresponding attachment device is driven according to preset formula.Input unit 1010 can also include pressure sensor 1012, can examine The pressure value surveyed the pressure value for acting on physical button 1011 and obtain detection is sent to processor 1040.

Memory 1020 can be used for storing executable program code, and processor 1040 is stored in memory 1020 by operation Executable program code, so as to perform search pen various function application and data processing, be especially performed for implementing Example one or taking pictures for embodiment two search topic method.Memory 1020 may include storing program area and storage data field, wherein, storage It program area can storage program area, the application program (such as camera function, focusing positioning function etc.) needed at least one function Deng；Storage data field can be stored uses created data (such as examination question image, voice data etc.) etc. according to search pen.This Outside, memory 1020 can include high-speed random access memory, can also include nonvolatile memory, for example, at least one Disk memory, flush memory device or other volatile solid-state parts.

Photographing unit 1030 can include but are not limited to external camera 1031, focusing locating module 1032 and angle school Positive module 1033.Specifically, external camera 1031 can 180 degree rotation, by dominant frame take pictures preview, in corresponding program It takes pictures under driving and obtains examination question image or export examination question image to memory 1020.Focusing locating module 1032 may include Laser Focusing module, ultraviolet light Focusing module etc., focusing locating module 1032 can auto-focusing, positioning or into row information throw Shadow can be according to the focusing and positioning of the motion track adjustment external camera 1031 of search pen.Angle correction module 1033 It can be according to parameter or the photo angle of user's operation adjustment external camera 1031.

Gyroscope 1034 or gravity sensor 1035 can also be included by searching for pen, and focusing locating module 1032 can be according to top The acceleration of gravity adjustment focusing and positioning and angle that the rotational angular velocity or gravity sensor 1035 that spiral shell instrument 1034 detects detect The gravity that the rotational angular velocity or gravity sensor 1035 that degree correction module 1033 can be detected according to gyroscope 1034 detect adds Speed adjusts photo angle.

Processor 1040 is the control centre for searching for pen, and each portion of pen is entirely searched for using various interfaces and connection Point, it is stored in memory by running or performing the software program being stored in memory 1020 and/or module and call Data in 1020 perform the various functions of search pen and processing data, so as to carry out integral monitoring to search pen.Optionally, Processor 1040 may include one or more processing units；Preferably, processor 1040 can integrate application processor and modulatedemodulate Processor is adjusted, wherein, the main processing operation system of application processor, application program etc., modem processor mainly handles nothing Line communicates.It is understood that above-mentioned modem processor can not also be integrated into processor 1040.

Wireless communication module 1050 can be used for sending examination question image, the control for receiving external equipment when performing camera function Instruction etc., particularly, is sent to processor 1040, by processor 1040 after the control instruction for receiving external equipment Reason.Wireless communication module 1050 may include such as Wireless Fidelity (wireless fidelity, WiFi) module etc..Wherein, WiFi belongs to In short range wireless transmission technology, search pen can be used for sending examination question image and receives external equipment by WiFi module Control instruction etc., it has provided wireless broadband internet to the user and has accessed.

Search pen can also include the power supply 1060 (such as battery) powered to all parts, it is preferred that power supply can lead to Cross power-supply management system and processor 1040 be logically contiguous, so as to by power-supply management system realize management charging, electric discharge and The functions such as power managed.

Touch pen point 1070 can also be included by searching for pen, and touch pen point 1070 can include but are not limited to the soft pen of rubber Head, carbon fiber hard-tipped pen head and pressure stretch first-class any one touch-control that can be used on Touch Screen/touch screen of metal pen Nib.Touch pen point 1070 can be acted on Touch Screen/touch screen of external equipment with to external equipment input signal.

Search pen may also include at least one sensor 1080, for example, imaging sensor, optical sensor, motion sensor, Biosensor and other sensors.Specifically, optical imagery can be converted into electronic signal by imaging sensor.Optical sensor The brightness of dominant frame in photographing unit 1030 can be adjusted according to the light and shade of ambient light.As one kind of motion sensor, add Fast flowmeter sensor can detect in all directions the size of (generally three axis) acceleration, can detect that when static gravity size and Direction can be used to identify posture (for example be disposed vertically, be horizontal positioned), the Vibration identification correlation function (for example percussion) of search pen Deng；Other sensors such as gyroscope, infrared ray sensor are can also configure as search pen, details are not described herein.

Voicefrequency circuit 1090, loud speaker 1091 can also be included by searching for pen, and microphone 1092 can provide user and search pen Between audio interface.The transformed electric signal of the audio data received can be transferred to loud speaker by voicefrequency circuit 1090 1091, voice signal output is converted to by loud speaker 1091；On the other hand, microphone 1092 is converted to the voice signal of collection Electric signal is converted to audio data after being received by voicefrequency circuit 1090, then after audio data output processor 1040 is handled, warp Wireless communication module 1050 is to be sent to such as electronic equipment or export audio data to memory 1020 so as to further Processing.

Although being not shown, search pen may also include charging interface, but pass through the power supply 1060 that the charging interface is search pen Charging.Charging interface may include Micro USB interfaces, USB Type C interface etc..Search pen may also include switch indication light, fill Electric indicator light etc., details are not described herein.

One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment is can It is completed with instructing relevant hardware by program, which can be stored in a computer readable storage medium, storage Medium include read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), programmable read only memory (Programmable Read-only Memory, PROM), erasable programmable is read-only deposits Reservoir (Erasable Programmable Read Only Memory, EPROM), disposable programmable read-only memory (One- Time Programmable Read-Only Memory, OTPROM), the electronics formula of erasing can make carbon copies read-only memory (Electrically-Erasable Programmable Read-Only Memory, EEPROM), CD-ROM (Compact Disc Read-Only Memory, CD-ROM) or other disk storages, magnetic disk storage, magnetic tape storage or can For carrying or storing any other computer-readable medium of data.

The above, above example are only to illustrate the technical solution of the application rather than its limitations；Although with reference to before Embodiment is stated the application is described in detail, however it will be understood by those of ordinary skill in the art that；It still can be with It modifies to the technical solution recorded in foregoing embodiments or equivalent replacement is carried out to which part technical characteristic；And These modifications are replaced, the spirit and model of each embodiment technical solution of the application that it does not separate the essence of the corresponding technical solution It encloses.

Claims

1. one kind, which is taken pictures, searches topic method, which is characterized in that the method includes：

Hand-held photographing device response frame choosing instruction projects dominant frame on the projection surface where examination question；Wherein, the dominant frame is used At least one of test question to be checked in the projection surface is selected in frame；

Whether the projecting direction that the hand-held photographing device detection projects the dominant frame is vertical with the projection surface；Wherein, institute The direction of taking pictures for stating the camera of hand-held photographing device is identical with the projecting direction；

If not, the hand-held photographing device adjusts the projecting direction until the projecting direction is vertical with the projection surface；

The hand-held photographing device shoots the dominant frame region by camera, to obtain examination question image；Wherein, it is described Examination question image includes at least one of test question to be checked；

The hand-held photographing device sends the examination question image to electronic equipment, so that the electronic equipment exports the examination question figure As and the target test question to be checked in the examination question image is uploaded to server to obtain target test question pair to be checked The target answer information answered, the target test question to be checked include one or multiple tracks test to be checked in the examination question image Topic.

2. according to the method described in claim 1, it is characterized in that, the hand-held photographing device response frame choosing instruction is in examination question institute Projection surface on project dominant frame before, the method further includes：

The hand-held photographing device sense that user acts on the shooting key by the shooting key of the hand-held photographing device the One pressure value；

The hand-held photographing device is determined from preset at least one pressure threshold range belonging to the first pressure value First object pressure threshold range；

The hand-held photographing device judges whether the first object pressure threshold range is first pressure threshold range, if It is then to perform the response frame choosing instruction to project dominant frame on the projection surface where examination question.

3. according to the method described in claim 2, it is characterized in that, the hand-held photographing device shoots described show by camera Before property frame region, the method further includes：

The hand-held photographing device senses user by the shooting key and acts on the second pressure value for shooting key；

The hand-held photographing device determines the second pressure value institute from preset at least one pressure threshold range The the second target pressure threshold range belonged to；

The hand-held photographing device judges whether the second target pressure threshold range is second pressure threshold range, if It is that then execution was described shoots the dominant frame region by camera；Any in the second pressure threshold range Pressure value is more than any pressure value in the first pressure threshold range.

4. according to claims 1 to 3 any one of them method, which is characterized in that the hand-held photographing device detection projection institute Whether the projecting direction for stating dominant frame is vertical with the projection surface, including：

The contour shape that the hand-held photographing device is presented by the camera acquisition dominant frame on the projection surface；

The hand-held photographing device judges whether the contour shape is identical with preset nominal contour shape, if it is not, then really The fixed projecting direction is with the adjustment projecting direction described in the projection surface out of plumb and execution until the projecting direction It is vertical with the projection surface.

5. if according to the method described in claim 1, it is characterized in that, the hand-held photographing device detects that projection is described aobvious Property frame projecting direction it is vertical with the projection surface, then the hand-held photographing device perform it is described shot by camera described in Dominant frame region, to obtain examination question image.

6. a kind of hand-held photographing device, which is characterized in that the hand-held photographing device includes：

Vertical detection unit, it is whether vertical with the projection surface for detecting the projecting direction of the projection dominant frame；Wherein, institute The direction of taking pictures for stating the camera of hand-held photographing device is identical with the projecting direction；

Angle correcting unit, for the vertical detection unit detect the projecting direction and the projection surface out of plumb it Afterwards, the projecting direction is adjusted until the projecting direction is vertical with the projection surface；

Hand-held hardware photographing unit, shoots the dominant frame region, to obtain examination question image for passing through camera；Its In, the examination question image includes at least one of test question to be checked；

Transmitting element, for sending the examination question image to electronic equipment, so that the electronic equipment exports the examination question image And the target test question to be checked in the examination question image is uploaded to server and is corresponded to obtaining target test question to be checked Target answer information, the target test question to be checked include the examination question image in together or multiple tracks test question to be checked.

7. hand-held photographing device according to claim 6, which is characterized in that the hand-held photographing device further includes：

Sensing unit, for projecting dominant frame on the projection surface where examination question in the focusing positioning unit response frame choosing instruction Before, user is sensed by the shooting key of the hand-held photographing device and acts on the first pressure value for shooting key；

Determination unit, for determining first belonging to the first pressure value from preset at least one pressure threshold range Target pressure threshold range；

Pressure judging unit, for judging whether the first object pressure threshold range is first pressure threshold range；

The focusing positioning unit, specifically for judging the first object pressure threshold range in the pressure judging unit After first pressure threshold range, response frame choosing instruction projects dominant frame on the projection surface where examination question.

8. hand-held photographing device according to claim 7, which is characterized in that the hand-held photographing device further includes：

The sensing unit is additionally operable to shoot the dominant frame location by camera in the hand-held hardware photographing unit Domain, before obtaining examination question image, to sense user by the shooting key and act on the second pressure value for shooting key；

The determination unit is additionally operable to determine the second pressure value from preset at least one pressure threshold range The second affiliated target pressure threshold range；

The pressure judging unit is additionally operable to judge whether the second target pressure threshold range is second pressure threshold value model It encloses；

The hand-held hardware photographing unit, specifically for judging second target pressure threshold in the pressure judging unit Ranging from after second pressure threshold range, the dominant frame region is shot by camera, to obtain examination question image；Institute State any pressure value that any pressure value in second pressure threshold range is more than in the first pressure threshold range.

9. photographing device is held according to claim 6~8 any one of them, which is characterized in that the vertical detection unit, packet It includes：

Subelement is obtained, for passing through the contour shape that the camera obtains the dominant frame and presented on the projection surface；

Judgment sub-unit, for judging whether the contour shape is identical with preset nominal contour shape；

Determination subelement, for judging the contour shape and preset nominal contour shape not phase in the judgment sub-unit With after, the projecting direction and the projection surface out of plumb are determined；

The angle correcting unit, specifically for determining that the projecting direction does not hang down with the projection surface in the determination subelement After straight, the projecting direction is adjusted until the projecting direction is vertical with the projection surface.

10. hand-held photographing device according to claim 6, which is characterized in that the hand-held hardware photographing unit, it is specific to use After detecting that the projecting direction for projecting the dominant frame is vertical with the projection surface in the vertical detection unit, by taking the photograph As the head shooting dominant frame region, to obtain examination question image.

11. a kind of system for searching topic of taking pictures, which is characterized in that the system for searching topic of taking pictures includes hand-held photographing device, electronics Equipment and server；

Described hand-held photographing device such as claim 6~10 any one of them holds photographing device；

The server includes：Second Transmit-Receive Unit and search unit；

The display unit shows that the examination question image and output show that first Transmit-Receive Unit receives for exporting The server described in the second Transmit-Receive Unit send the corresponding target answer information of target test question to be checked；

The examination question detection unit, after showing the examination question image in display unit output, according to user's operation Target test question to be checked is detected from the examination question image, the target test question to be checked includes one in the examination question image Or multiple tracks test question to be checked；

First Transmit-Receive Unit is additionally operable to the target test question to be checked in the examination question image being sent to the server Second Transmit-Receive Unit；

Second Transmit-Receive Unit, for receiving the examination question image of first Transmit-Receive Unit of electronic equipment upload In target test question to be checked；

Second Transmit-Receive Unit is additionally operable to feed back to the target answer information first transmitting-receiving of the electronic equipment Unit.