CN110558942B - Skin detection equipment, image acquisition device and filter assembly thereof - Google Patents
Skin detection equipment, image acquisition device and filter assembly thereof Download PDFInfo
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- CN110558942B CN110558942B CN201910826437.3A CN201910826437A CN110558942B CN 110558942 B CN110558942 B CN 110558942B CN 201910826437 A CN201910826437 A CN 201910826437A CN 110558942 B CN110558942 B CN 110558942B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
- A61B5/0077—Devices for viewing the surface of the body, e.g. camera, magnifying lens
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/44—Detecting, measuring or recording for evaluating the integumentary system, e.g. skin, hair or nails
- A61B5/441—Skin evaluation, e.g. for skin disorder diagnosis
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/90—Arrangement of cameras or camera modules, e.g. multiple cameras in TV studios or sports stadiums
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Abstract
The invention discloses a skin detection device, an image acquisition device and a filter assembly thereof, wherein the latter comprises: at least two filter lenses; the filter lenses are respectively arranged on the supporting frames and move along with the supporting frames; and the power component is in transmission connection with the support frame and drives the support frame to move so as to push any filter lens piece to a preset position. In the use, when needs switch the filter, start power part for the support frame of being connected with the power part transmission obtains power, and the support frame moves under power part's effect, thereby with appointed filter lens propelling movement to default position, so that through the effect of power part and support frame, make the filter lens can convenient switching, thereby satisfy the filter lens piece matching demand of image acquisition device under different operating condition.
Description
Technical Field
The invention relates to the technical field of image acquisition, in particular to a filter assembly for an image acquisition device. The invention also relates to an image acquisition device comprising the filter assembly, and skin detection equipment comprising the image acquisition device.
Background
This section provides background information related to the present disclosure only and is not necessarily prior art.
Currently, in the beauty industry, the facial skin condition of a user is often diagnosed, so that a matched product or service is formulated according to the individual facial skin condition, and the demand of the user on a personalized product is met. When diagnosing facial skin of a user based on an image shot by a camera, different imaging conditions are required to be adopted to cope with different skin problems, a plurality of images need to be shot in a complete imaging process, and the light source and the camera parameters required by each shot of one image are different. Corresponding to different light sources and camera parameters, in order to ensure the imaging effect, a filter matched with the type of the light source is required to be arranged, for example, when the UV light source is selected, the UV filter matched with the UV light source is selected. When there are multiple groups of light sources, multiple filters need to be disposed, and how to switch the multiple filters in the using process becomes a problem to be solved by those skilled in the art.
Disclosure of Invention
It is an object of the invention to at least solve the problem of how a plurality of filters are switched. The purpose is realized by the following technical scheme:
a first aspect of the invention provides a filter assembly comprising:
at least two filter lenses;
the filter lenses are respectively arranged on the supporting frames and move along with the supporting frames;
and the power component is in transmission connection with the support frame and drives the support frame to move so as to push any filter lens piece to a preset position.
In the use, when needs switch the filter, start power part for the support frame of being connected with the power part transmission obtains power, and the support frame moves under power part's effect, thereby with appointed filter lens propelling movement to default position, so that through the effect of power part and support frame, make the filter lens can convenient switching, thereby satisfy the filter lens piece matching demand of image acquisition device under different operating condition.
Further, the support frame comprises a rotating shaft and a rotating disc which is circumferentially and rotatably arranged on the rotating shaft, and the rotating disc rotates around the rotating shaft under the driving of the power part; each filter lens piece is arranged on the circumference of the rotary disc, and the adjacent filter lens pieces are not overlapped.
Further, the device comprises an initial position identification structure, wherein the initial position identification structure comprises a first signal transmitting end and a first signal reflecting end, one of the first signal transmitting end and the first signal reflecting end is arranged on the turntable, and the other one of the first signal transmitting end and the first signal reflecting end is arranged at a first target position outside the turntable.
Furthermore, first signal emission end for set up in the first infrared emission receiver in carousel dead ahead, first signal reflection end for set up in initial origin on the carousel.
The counting structure comprises a second signal transmitting end and a second signal reflecting end, the second signal reflecting end is arranged on the turntable, and the second signal transmitting end is arranged at a second target position outside the turntable;
the second signal reflection ends are multiple, and each second signal reflection end is arranged in one-to-one correspondence with each filter lens.
Furthermore, the second signal transmitting end is a second infrared transmitting and receiving device arranged outside the rotary table, and the second signal reflecting end is an infrared induction groove starting at the circumferential direction of the rotary table.
Furthermore, the number of the support frames is multiple, the filter lens pieces are correspondingly arranged on the support frames one by one, and the support frames are respectively in transmission connection with the power component.
The support frames are rotatably arranged on the rotating shaft and are uniformly arranged in the axial direction of the rotating shaft in a laminated structure, and the support frames can rotate around the rotating shaft through the power part respectively.
The present invention also provides an image acquisition apparatus comprising:
a camera;
the filter assembly is arranged in front of the lens of the camera, and the relative position of the filter assembly and the lens is fixed;
the imaging device comprises an imaging chamber, wherein a forehead limiting component and a lower jaw supporting component are arranged in the imaging chamber, an imaging window is formed in the side wall of the imaging chamber, and a filter lens of the filter assembly is pushed to a preset position and is opposite to the imaging window; at least two light sources are sequentially arranged on two sides of the imaging window from near to far;
and the master control system controls the on-off of the light source and the action of a power component in the filter assembly according to the instruction of an upper computer.
In the process of facial image acquisition, a master control system sends an action instruction to a power unit according to an instruction input by an upper computer, the power unit drives a support frame in a filter assembly to move and pushes a required filter to the position of an imaging window, a camera acquires a facial image in an imaging cavity through image shooting, image acquisition under the filter is completed, and the frame of image is stored; then according to the next acquisition instruction, the position of the support frame is changed, so that the other required filter lens is pushed to the position of the imaging window, and the camera and the image shoot and acquire the face image in the imaging cavity to finish the acquisition and storage of the next frame of image; and repeating the filter lens switching and image acquisition process until the image acquisition position under all conditions is completed. Like this, this image acquisition device can select the best filter lens piece under the current shooting mode through the switching of filter assembly when many images need to be shot to satisfy the shooting demand under the different situation.
The invention also provides a skin detection device comprising the image acquisition device.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like parts are designated with like reference numerals throughout the drawings. In the drawings:
FIG. 1 is a schematic diagram of a filter assembly according to an embodiment of the present invention;
FIG. 2 is a schematic view of the filter assembly of FIG. 1 in use;
FIG. 3 is a schematic view of a turntable of the filter assembly of FIG. 1;
FIG. 4 is a schematic structural diagram of an embodiment of an image capturing device according to the present invention;
fig. 5 is a schematic diagram of the imaging chamber of the image acquisition apparatus of fig. 4.
Description of reference numerals:
1-rotating disc 11-mounting hole 2-filter lens 3-rotating shaft 4-power part
100-imaging chamber 101-imaging window 200-support base
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
Referring to fig. 1 and 2, fig. 1 is a schematic structural diagram of an embodiment of a filter assembly according to the present invention; fig. 2 is a schematic structural view of the filter assembly shown in fig. 1 in a use state.
In a specific embodiment, the filter assembly provided by the invention can be used in any image acquisition device requiring switching of multiple sets of filters, and is particularly suitable for facial image acquisition devices which are adaptive to different filters for different skin problems and have high requirements on image acquisition quality. The freely switchable filter assembly comprises at least two switchable filter plates 2, a support for supporting the filter plates 2, and a power unit 4 for powering the support. Two or more filter lenses 2 can be arranged according to the use requirement, and the type of the filter lens 2 can also be selected according to the use requirement, for example, the filter lens 2 can include UV filters, polarizers, diffuse reflection mirrors and other types; the filter lenses 2 are respectively arranged on the support frame and move along with the support frame, and the filter lenses 2 can be arranged on the support frame in an embedded mode on the basis that the main body structure of the support frame can not shield the mirror surface of the filter lenses 2; the power component 4 is in transmission connection with the support frame and drives the support frame to move so as to push any one of the filter lenses 2 to a preset position, the preset position may be, for example, an imaging window 101 of an image acquisition device, and the power component 4 may be a motor or other power components 4 conventionally used in the field, which is not described herein again.
Like this, this filter assembly is in the use, when needs switch filter, start power part 4 for the support frame of being connected with the 4 transmission of power part acquires power, and the support frame moves under power part 4's effect, thereby with 2 propelling movement of appointed filter lens to predetermineeing the position, so that the effect through power part 4 and support frame, make filter lens 2 switch that can be convenient, thereby satisfy the filter lens 2 matching demand of image acquisition device under different operating condition.
In order to realize driving the filter lens piece 2 and rotate and to appoint the filter lens piece 2 to advance the function of predetermineeing the position, the support frame can be for the integration have a plurality of forms of filter lens piece 2, also can be for setting up the structural style of filter lens piece 2 on multiunit support frame, every support frame respectively.
Specifically, in one embodiment, as shown in fig. 3, the supporting frame is in the form of a wheel, that is, the supporting frame includes a rotating shaft 3 and a rotating disc 1 circumferentially and rotatably mounted on the rotating shaft 3, and the rotating disc 1 is driven by the power unit 4 to rotate around the rotating shaft 3, that is, the rotating disc 1 can circumferentially rotate, so as to change the position of the filter lens 2. There is mounting hole 11 on the carousel 1, each filter piece 2 all through the form of embedding mounting hole 11 set up in carousel 1's circumference is last, and adjacent two filter piece 2 is between the underlap, and each filter piece 2 is independent in the position between each other, can not shelter from each other to guarantee filtering the smooth switching of piece 2. The mounting hole 11 formed on the turntable 1 is a through hole to avoid blocking the filter lens 2.
In filter element 2 switching process, power component 4 (for example, the motor) drives carousel 1 and rotates around rotation shaft 3, because a plurality of filter element 2 all set up in the quotation of carousel 1 along circumference, along with the rotation of carousel 1, filter element 2's position can change, when required target filter element 2 reachs the preset position, power component 4 shuts down, carousel 1 stall, the filter element 2 that is in this preset position is required target filter element 2 promptly this moment, when other filter element 2 of needs, then repeat above-mentioned process, thereby realize filter element 2's switching and selection.
In order to facilitate the operation, guarantee the position accuracy when filtering lens piece 2 switches, avoid taking place the lens in disorder, this filter assembly still includes initial position identification structure, initial position identification structure includes first signal emission end and first signal reflection end, first signal emission end with one of the first signal reflection end both set up in carousel 1, the other set up in first target location outside carousel 1. In the working process, the identification signal sent by the first signal transmitting end is reflected when encountering the first signal reflecting end, and the first signal transmitting end receives the reflected signal, so that the initial position is reached at the moment, and the initialization of the filter assembly is completed.
The initial position identification structure is specifically an infrared identification structure, the first signal transmitting end is a first infrared transmitting and receiving device arranged right in front of the turntable 1, and the first signal reflecting end is an initial origin arranged on the turntable 1. The first infrared transmitting and receiving device can be arranged on a device where the filter assembly is arranged, for example, on the image acquisition device, and also can be arranged on one side of the filter assembly, which is far away from the image acquisition device, as long as the first infrared transmitting and receiving device is opposite to the initial origin position. Before a complete shooting process, the position of the filter group is initialized, in this embodiment, the position is located by an origin, a first infrared transmitter-receiver is arranged in front of the filter group, and infrared light emitted by the first infrared transmitter-receiver is reflected back if reaching the initial origin, so that the position of the origin (i.e., the initial position) can be determined to complete the position initialization of the filter assembly.
Further, in order to simplify the operation process when the filter assembly is switched, the filter assembly further comprises a counting structure, the counting structure comprises a second signal transmitting end and a second signal reflecting end, the second signal reflecting end is arranged on the turntable 1, the second signal transmitting end is arranged at a second target position outside the turntable 1, the number of the second signal reflecting ends is multiple, and each second signal reflecting end is arranged in one-to-one correspondence with each filter lens piece 2; that is to say, each filter element 2 position all corresponds and is equipped with a ground signal reflection end, and in the carousel 1 rotation process, these second signal reflection ends produce the effect with the second signal transmission end respectively to can realize the count according to the signal feedback quantity that the second signal transmission end received, thereby judge corresponding filter element 2 and target in place.
The second signal transmitting end is specifically a second infrared transmitting and receiving device arranged outside the turntable 1, and the second signal reflecting end is an infrared induction groove starting from the circumferential direction of the turntable 1. Specifically, all correspond at the edge of rim plate, every filter element 2's position and set up a draw-in groove as the infrared induction recess, still be provided with second infrared emission receiver in rim plate the place ahead, when infrared induction recess passes through infrared light path at every turn, light will see through the infrared induction recess and is received, and corresponding counter adds 1, fixes a position the target filter in proper order. For example, if it is necessary to switch to the UV filter, the switching is stopped when the count value of the counter is 3, according to the preset configuration rule, the UV filter is reached through 3 times of the card slot.
Besides the wheel disc type structure, a plurality of support frames can be arranged, the filter lenses 2 are correspondingly arranged on the support frames one by one, and the support frames are respectively in transmission connection with the power component 4; when a certain filter lens 2 is needed, the power component 4 drives the support frame where the filter lens 2 is located to move to a preset position.
In order to save the space used by the filter assembly and improve the space utilization rate, a stacked filter lens 2 can be arranged. At this time, the filter assembly further includes a rotating shaft 3, each of the support frames is rotatably mounted on the rotating shaft 3, and is uniformly arranged in the axial direction of the rotating shaft 3 in a stacked structure, and the support frames can rotate around the rotating shaft 3 through the power member 4, respectively. When a certain filter lens 2 is needed, the power part 4 drives the support frame where the filter lens 2 is located to move, so that the filter lens is separated from the stacked array and reaches a preset position.
In addition to the filter assembly, as shown in fig. 4 and 5, the present invention further provides an image capturing device including the filter assembly, the image capturing device includes a supporting base 200, a camera, the filter assembly, a main control system and an imaging chamber 100, the filter assembly is disposed in front of a lens of the camera and fixed relative to the lens; a forehead limiting component and a lower jaw supporting component are arranged in the imaging chamber 100, an imaging window 101 is formed in the side wall of the imaging chamber 100, and the filter lens 2 of the filter assembly is pushed to a preset position and is opposite to the imaging window 101; at least two light sources are sequentially arranged on two sides of the imaging window 101 from near to far; and the master control system controls the on-off of the light source and the action of the power component 4 in the filter assembly according to the instruction of the upper computer.
Wherein, the camera can take pictures according to the control instruction sent by the upper computer, the filter assembly is arranged in front of the camera lens and the relative position of the filter assembly and the camera lens is unchanged, for example, if the camera lens deflects 30 degrees to the right, the filter assembly also needs to deflect 30 degrees to the right, the filter assembly includes a plurality of filters, which may include, for example, a UV filter, a cross polarization filter, a parallel polarization filter, a first light transmission filter, a second light transmission filter, etc., wherein a polarization angle of the cross polarization filter is 0 degree. The forehead limiting part and the lower jaw supporting part are respectively arranged above and below the imaging chamber 100 and used for fixing the head of a user, and the plane where the center of the forehead limiting part and the center of the lower jaw supporting part are located together with the center of the lens of the camera is vertical to the horizontal plane, so that the face of the user can be kept correct in the lens viewing frame. The inner side wall of the imaging chamber 100 is an arc surface, and a hollowed-out imaging window 101 is formed in the arc surface, so that a camera lens can shoot the face of a user through the imaging window 101. Three light sources are arranged on two sides of the imaging window 101 from near to far, the light sources sequentially comprise a UV light source, a cross polarization light source and a parallel polarization light source, a UV filter is arranged in front of the UV light source, the cross polarization light source is a cross polarization light source, the polarization light source is an LED white lamp, a polarizer with a polarization angle of 180 degrees is arranged in front of the cross polarization light source, and an included angle between the light source and the polarizer and the optical axis position of the camera is 45 degrees; the parallel polarized light source is an LED white lamp, a diffuse reflector is disposed in front of the parallel polarized light source, and the parallel polarized light source may be disposed at the bottom and the top of the imaging chamber 100. PLC can be according to the switching of this equipment light source work and filter 2 before the camera lens of the instruction control of host computer.
In the process of collecting facial images, a main control system sends an action instruction to a power part 4 according to an instruction input by an upper computer, the power part 4 drives a support frame in a filter assembly to move and pushes a required filter 2 to the position of an imaging window 101, and a camera collects facial images in an imaging cavity 100 through image shooting, so that image collection under the filter 2 is completed and the frame of image is stored; then, according to the next acquisition instruction, the position of the support frame is changed, so that the other needed filter lens 2 is pushed to the position of the imaging window 101, and the camera and the image shoot and acquire the face image in the imaging chamber 100, so as to finish the acquisition and storage of the next frame of image; the above-described switching of the filter element 2 and the image acquisition process are repeated until the image acquisition position is completed in all cases. Like this, this image acquisition device can select the best filter lens piece 2 under the current shooting mode through the switching of filter assembly when many images need to be shot to satisfy the shooting demand under the different situation.
In addition, the present invention further provides a skin detection device, which includes the image acquisition apparatus as described above, and the structure of other parts of the skin detection device is referred to the prior art and is not described herein again.
It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order discussed or illustrated, unless specifically identified as an order of performance. It should also be understood that additional or alternative steps may be used.
Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
For convenience of description, spatially relative terms, such as "inner", "outer", "lower", "below", "upper", "above", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. This spatially relative term is intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" may include both an up and down orientation. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. A filter assembly, comprising:
at least two filter lens (2), wherein the number of the filter lens (2) is at least two;
the filter lens pieces (2) are respectively arranged on the support frames and move along with the support frames, each support frame comprises a rotating shaft (3) and a rotating disc (1) which is circumferentially and rotatably arranged on the rotating shaft (3), and the rotating disc (1) rotates around the rotating shaft (3) under the driving of a power part (4); each filter lens (2) is arranged on the circumferential direction of the turntable (1), and the adjacent filter lenses (2) are not overlapped;
the power component (4) is in transmission connection with the support frame and drives the support frame to move so as to push any filter lens piece (2) to a preset position;
the filter assembly further comprises a counting structure, the counting structure comprises a second signal transmitting end and a second signal reflecting end, the second signal reflecting end is arranged on the turntable (1), and the second signal transmitting end is arranged at a second target position outside the turntable (1);
the number of the second signal reflection ends is multiple, and each second signal reflection end corresponds to each filter lens (2) one by one;
the second signal transmitting end is a second infrared transmitting and receiving device arranged outside the rotary table (1), and the second signal reflecting end is an infrared induction groove starting from the circumferential direction of the rotary table (1);
the filter assembly further comprises an initial position identification structure, the initial position identification structure comprises a first signal transmitting end and a first signal reflecting end, one of the first signal transmitting end and the first signal reflecting end is arranged on the rotary table (1), and the other one of the first signal transmitting end and the first signal reflecting end is arranged at a first target position outside the rotary table (1).
2. Filter assembly according to claim 1, wherein the first signal transmitting end is a first infrared transmitter-receiver arranged directly in front of the turntable (1) and the first signal reflecting end is an initial origin arranged on the turntable (1).
3. The filter assembly of claim 1, wherein the number of the support frames is plural, each of the filter elements (2) is mounted on each of the support frames in a one-to-one correspondence, and the support frames are respectively in transmission connection with the power member (4).
4. A filter assembly as claimed in claim 3, further comprising a rotary shaft (3), wherein each of the support frames is rotatably mounted on the rotary shaft (3), and is uniformly arranged in a stacked structure in an axial direction of the rotary shaft (3), and the support frames are rotatable around the rotary shaft (3) by the power member (4), respectively.
5. An image acquisition apparatus, comprising:
a camera;
the filter assembly of any of claims 1-4, disposed in front of a lens of the camera and fixed in position relative to the lens;
the imaging device comprises an imaging chamber (100), wherein a forehead limiting component and a lower jaw supporting component are arranged in the imaging chamber (100), an imaging window (101) is formed in the side wall of the imaging chamber (100), and a filter sheet (2) of the filter assembly is opposite to the imaging window (101) when pushed to a preset position; at least two light sources are sequentially arranged on two sides of the imaging window (101) from near to far;
and the master control system controls the on-off of the light source and the action of a power component (4) in the filter assembly according to the instruction of an upper computer.
6. A skin detection apparatus comprising the image acquisition device of claim 5.
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| CN201910826437.3A CN110558942B (en) | 2019-09-03 | 2019-09-03 | Skin detection equipment, image acquisition device and filter assembly thereof |
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| AU2015336166B2 (en) * | 2014-10-20 | 2020-07-16 | Flare Diagnostics, Llc | Skin test reading device and associated systems and methods |
| CN108153083B (en) * | 2016-12-06 | 2021-08-31 | 中兴通讯股份有限公司 | Filter group structure, camera device and filter control method of camera device |
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| CN109124575B (en) * | 2018-06-26 | 2021-07-30 | 广州美锐健康产业股份有限公司 | Multispectral facial skin image acquisition device and system |
| CN109893096A (en) * | 2019-03-21 | 2019-06-18 | 武汉嫦娥医学抗衰机器人股份有限公司 | A kind of face image capturing apparatus for skin analysis |
| CN109932829B (en) * | 2019-04-10 | 2021-02-26 | 武汉锐科光纤激光技术股份有限公司 | Lens positioning device and method |
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| JP2002065645A (en) * | 2000-08-28 | 2002-03-05 | Matsushita Electric Works Ltd | Non-invasive blood sugar measuring device |
| CN110151142A (en) * | 2019-06-27 | 2019-08-23 | 刘新新 | A kind of medical multi-modal hybrid image forming apparatus of integration |
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