CN220749730U - Motion blur test guide rail - Google Patents

Abstract

A motion blur test guide rail comprising: a sliding guide rail; the sliding connection part is in sliding connection with the sliding guide rail; the fixing part is positioned above the sliding connection part to fix the test equipment; the sliding connection part is detachably connected with the fixed part; the sliding connection includes a first bushing to slide on the sliding rail. The utility model provides a longer movement space for the test equipment through the support and the sliding guide rail, and can test various indexes such as shooting quality, continuity and the like of the camera in a longer distance range.

Description

Motion blur test guide rail

Technical Field

The utility model relates to the technical field of camera testing, in particular to a motion blur testing guide rail.

Background

When a camera or video camera is taking a picture or recording a video, any object moving relative to the camera will appear blurred or smeared along the relative motion direction, and under the same conditions, the longer the exposure time, the more obvious the imaging blur.

In GA/T1127-2013 formulated by public security department, an evaluation method of five-level damage system is adopted [ subjective evaluation of image quality ] in the general technical standard of a security video surveillance camera, a 40cm turntable is adopted in the test, the center of a camera to be tested and the center of the turntable rotate at a constant speed of 120rpm, the center of the camera to be tested are on the same straight line, the test content is full of the whole camera output image, the exposure of the test camera works in an 'automatic' mode, the picture output by the camera is grabbed in the test, and the picture can be ensured to be completely grabbed (including a trailing part generated by motion blur) to 3 round black points on the test card. And (3) equipment placement: a motion blur test card (shown in the following figures) with a diameter of 40cm was placed in the center of the turntable, and a circular black spot on the test card was 5mm in diameter. Illuminance range: 10 lux-1000 lux is adjustable.

The utility model relates to an area array camera test system. The test system comprises a control cabinet, a vertical displacement adjusting mechanism, a camera angle adjusting mechanism, a light source clamping mechanism, a detection platform and a horizontal displacement adjusting mechanism. The control cabinet can simultaneously control the rotation of the motor and is used for measuring whether the camera generates motion blur and defocus blur in the motion process. The angle of the camera clamping block is determined by a motor and is adjusted along with the movement moment of the detection platform. Compared with the prior art, the area array camera test system can accurately position the camera and the light source through the control cabinet control motor, is used for testing depth of field, lens distortion and teaching demonstration, and is simple in structure and convenient to popularize.

In the prior art, a fixed camera is adopted, when a detection object is moved, the photographing quality of the camera in a fixed scene can be only tested, but the photographing stability of the camera in the moving process can not be detected. The scheme of moving the camera in the prior art is only suitable for small-distance movement, has less measurement data, and is difficult to effectively detect the moving effect of the camera in a real scene.

The foregoing background is only for the purpose of providing an understanding of the inventive concepts and technical aspects of the present utility model and is not necessarily prior art to the present application and is not intended to be used to evaluate the novelty and creativity of the present application in the event that no clear evidence indicates that such is already disclosed at the filing date of the present application.

Disclosure of Invention

Therefore, the utility model provides a longer movement space for the test equipment through the support and the sliding guide rail, and can test various indexes such as shooting quality, continuity and the like of the camera in a longer distance range.

The utility model provides a motion blur test guide rail, which is characterized by comprising the following components:

a sliding guide rail;

the sliding connection part is in sliding connection with the sliding guide rail;

the fixing part is positioned above the sliding connection part to fix the test equipment;

the sliding connection part is detachably connected with the fixed part;

the sliding connection includes a first bushing to slide on the sliding rail.

Optionally, the motion blur test guide rail is further characterized by comprising:

the hinge is fixed on the main gear;

one end of the connecting piece is connected with the hinge, and the other end of the connecting piece is connected with the sliding connecting part, so that the fixed part moves along when the hinge rotates;

and the motor is used for providing power.

Optionally, the motion blur test guide rail is characterized in that the connecting piece includes:

the second sleeve is fixed on the sliding connecting part;

the connecting rod is rotatably arranged on the shaft sleeve;

the step nut is fixed on the hinge and connected with the connecting rod.

Optionally, the motion blur test guide rail is further characterized by comprising:

the transmission gear and the main gear are fixed on the same shaft;

and one end of the transmission hinge is connected with the motor, and the other end of the transmission hinge is connected with the transmission gear.

Optionally, the motion blur test guide rail is characterized in that the transmission gear is a plurality of coaxial gears with different sizes, so that the moving speed of the test equipment can be controlled by adjusting the transmission gear connected with the transmission hinge.

Optionally, the motion blur test guide rail is further characterized by comprising:

and the transfer gear is arranged between at least two main gears and is connected with the hinge.

Optionally, the motion blur test guide rail is characterized in that the transfer gear and the main gear have the same size.

Optionally, the motion blur test guide rail is characterized in that the hinge and the sliding guide rail have the same shape.

Optionally, the motion blur test guide rail is further characterized by comprising:

the limiting block is positioned on the sliding guide rail and used for limiting the position of the sliding connecting part;

and the spring is positioned between the limiting block and the end point of the sliding guide rail.

Optionally, the motion blur test guide rail is characterized in that two ends of the sliding guide rail include positioning areas, and the shapes of the positioning areas are different from those of the areas outside the sliding guide rail, so that the movement range of the limiting block is limited.

Compared with the prior art, the utility model has the following beneficial effects:

according to the utility model, the movement space of the test equipment is provided through the support and the sliding guide rail, and the support and the sliding guide rail are expandable components, so that the movement space with any length can be provided for the test equipment, and the arrangement of shooting objects of the test equipment can detect a plurality of scenes in one test, so that the device has more obvious effect on a depth camera.

The utility model can test various indexes such as shooting quality, continuity and the like of the camera in a longer distance range, and provides test contents which cannot be realized by small-distance test.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present utility model, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art. Other features, objects and advantages of the present utility model will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:

FIG. 1 is a schematic diagram of a motion blur test guide rail according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of another motion blur test guide rail according to an embodiment of the present utility model;

FIG. 3 is a schematic structural view of a connector according to an embodiment of the present utility model;

FIG. 4 is a schematic view of another motion blur test guide rail according to an embodiment of the present utility model;

fig. 5 is a schematic structural diagram of another motion blur testing guide rail according to an embodiment of the present utility model.

1-a bracket;

2-a sliding guide rail;

4-hinges;

5-a motor;

a 6-connector;

8-a sliding connection;

9-a fixing part;

10-a lifting part;

11-a rotating part;

12-stretching device;

13-a transfer gear;

14-a transmission gear;

15-a drive hinge;

16-a main gear;

17-a first sleeve;

18-a second sleeve;

19-a connecting rod;

20-step nut;

21-limiting blocks;

22-springs;

Detailed Description

The present utility model will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the present utility model, but are not intended to limit the utility model in any way. It should be noted that variations and modifications could be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present utility model.

The terms "first," "second," "third," "fourth" and the like in the description and in the claims and in the above drawings, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the utility model described herein may be implemented, for example, in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The embodiment of the utility model provides a motion blur test guide rail, which aims to solve the problems in the prior art.

The following describes the technical scheme of the present utility model and how the technical scheme of the present application solves the above technical problems in detail with specific embodiments. The following embodiments may be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments. Embodiments of the present utility model will be described below with reference to the accompanying drawings.

The utility model provides a longer movement space for the test equipment through the support and the sliding guide rail, and can test various indexes such as shooting quality, continuity and the like of the camera in a longer distance range.

Fig. 1 is a schematic structural diagram of a motion blur test guide rail according to an embodiment of the present utility model. As shown in fig. 1, a motion blur test guide rail according to an embodiment of the present utility model includes:

and a sliding guide rail 2.

Specifically, the sliding guide defines the trajectory of the test equipment movement. The number of the sliding guide rails can be one, two, three or more. The sliding guide rail can be straight or curved. The sliding guide rail can be horizontal with the ground or form a certain included angle with the ground. The length of the sliding guide rail can be smaller than the length of the bracket or larger than the length of the bracket. The length of the slide rail shown in fig. 2 is smaller than the length of the bracket, and the slide rail is fixed to the bracket by a fixing member. The fixing member may be any long and narrow object such as a threaded rod, a straight rod, etc. in a cylindrical shape, a square shape, etc. When the length of the sliding guide rail is longer than that of the bracket, the sliding guide rail is partially positioned outside the bracket. At this time, the sliding guide rail is located above the bracket, and the sliding guide rail is fixed on the bracket through the fixing piece.

And the sliding connection part 8 is in sliding connection with the sliding guide rail.

Specifically, the slide coupling portion 8 is coupled to the slide rail and the coupling member. The sliding connection 8 slides on the sliding guide rail by the force of the connection.

And a fixing part 9 positioned above the sliding connection part to fix the test equipment.

Specifically, the slide connection portion 8 is detachably connected to the fixed portion 9. The fixing portion may be various types of fixing means such as a clamp type, a screw type, etc. The fixing part can fix cameras with various specifications and sizes. The camera can be replaced together with the fixing part when the camera is replaced. The sliding connection 8 comprises a first bushing 17 to slide on the sliding rail. The number of the first shaft sleeves is the same as that of the sliding guide rails. For example, the sliding guide has two rails, and the connecting member includes two first bushings.

In some embodiments, the fixture may hold multiple test devices simultaneously. The plurality of test devices may be fixed to the fixing portion in a vertical or horizontal manner to improve test efficiency.

Fig. 2 is a schematic structural diagram of another motion blur testing guide rail according to an embodiment of the present utility model. As shown in fig. 2, compared to the foregoing embodiment, another motion blur testing guide rail according to the embodiment of the present utility model further includes:

the hinge 4 is fixed to the main gear 16.

Specifically, the hinge is the same shape as the sliding rail. When the sliding guide rail is linear, the hinge is also linear. When the sliding guide is circular, the hinge is also circular. The arrangement direction of the hinges and the arrangement direction of the sliding guide rail can be the same or different. When the arrangement direction of the hinge is the same as the arrangement direction of the slide rail, the hinge is located below the slide rail. When the arrangement direction of the hinge is different from the arrangement direction of the slide rail, the hinge is located at the side of the slide rail. At least two main gears are connected to the hinge. The number of main gears is related to the shape of the hinge. The closer the hinge is to a circle, the greater the number of main gears.

The connecting member 6 has one end connected to the hinge 4 and one end connected to the sliding connection portion 8 so that the fixing portion 9 follows movement when the hinge 4 rotates.

Specifically, one end of the connecting piece is fixed on the hinge, and the other end of the connecting piece is connected with the sliding connecting part, so that when the hinge rotates, the fixing part can be driven to move along with the hinge, and further the testing equipment is driven to move. The connecting piece 6 is made of rigid material. At least one end of the two ends of the connecting piece is movably connected.

And a motor 5 for supplying power.

Specifically, the motor may have only one rotational speed, or may have a plurality of rotational speeds.

In some embodiments, the motor has multiple rotational speeds. The movement speed of the hinge can be controlled by adjusting the rotation speed of the motor, so that the movement speed of the test equipment can be controlled.

In some embodiments, the motor has only one rotational speed, and is connected to the main gear by a plurality of coaxial gears having different sizes, so that the moving speed of the test apparatus can be controlled by adjusting the transmission gear connected to the transmission hinge.

Fig. 3 is a schematic structural diagram of a connector according to an embodiment of the present utility model. As shown in fig. 3, a connector according to an embodiment of the present utility model includes:

the second sleeve 18 is fixed to the slide connection 8.

Specifically, the second sleeve is fixed to the sliding connection. The sliding connection part is provided with a part corresponding to the second sleeve so as to fix the second sleeve. In fig. 3, an example is shown, and one skilled in the art may make various forms of connection fixation.

A connecting rod 19 is rotatably mounted on said sleeve.

Specifically, the link may rotate about the second axis. The direction of the connecting rod is perpendicular to the axis of the second sleeve.

A step nut 20 fixed to the hinge and connected to the link.

Specifically, the axis of the step nut is perpendicular to the direction of the connecting rod. The step nut is longer than the other connecting parts of the hinge, having a protruding portion. The protruding part of the step nut is fixedly connected with the connecting rod. After the step nut is fixed with the connecting rod, the connecting rod can rotate around the step nut.

Fig. 4 is a schematic structural diagram of another motion blur testing guide rail according to an embodiment of the present utility model. As shown in fig. 4, another motion blur testing guide rail according to an embodiment of the present utility model further includes:

the transmission gear 14 is fixed on the same shaft as the main gear.

In some embodiments, the size of the drive gear may be the same as or different from the size of the main gear. When the size of the transmission gear is the same as that of the main gear, the rotating speed of the hinge is the same as that of the motor. When the size of the transmission gear is larger than that of the main gear, the rotating speed of the hinge is larger than that of the motor. When the size of the transmission gear is smaller than that of the main gear, the rotating speed of the hinge is smaller than that of the motor.

In some embodiments, the drive gear is a plurality of different sized coaxial gears such that the speed of movement of the test device can be controlled by adjusting the drive gear coupled to the drive hinge.

And one end of the transmission hinge 15 is connected with the motor, and the other end is connected with the transmission gear.

Specifically, when the motor rotates, the motor drives the drive hinge to rotate. The transmission hinge drives the transmission gear to rotate. Because the transmission gear and the main gear are coaxial gears, the main gear is driven to rotate together. The main gear drives the hinge to rotate and finally drives the fixing part to rotate together with the testing equipment.

In some embodiments, a motion blur test guide rail further comprises:

and the transit gear 13 is arranged between at least two main gears and is connected with the hinge.

Specifically, the transfer gear is the same size as the main gear, assisting in maintaining the taut state of the hinge. The number of transfer gears depends on the distance between adjacent main gears. The larger the distance between the adjacent main gears, the larger the number of relay gears. The smaller the distance between adjacent main gears, the fewer the number of idler gears. The transfer gear is a fixed gear. The main gear is positioned to move a certain extent so as to tighten the hinge.

Fig. 5 is a schematic structural diagram of another motion blur testing guide rail according to an embodiment of the present utility model. As shown in fig. 5, another motion blur testing guide rail according to an embodiment of the present utility model further includes:

and a limiting block 21, which is positioned on the sliding guide rail and is used for limiting the position of the sliding connection part.

Specifically, the area of the stopper is not smaller than the surface opposite to the slide connection portion. In this embodiment, the sliding guide is linear. The number of the limiting blocks is 2, and the limiting blocks are respectively positioned at two sides of the sliding guide rail.

And the spring 22 is positioned between the limiting block and the end point of the sliding guide rail.

Specifically, the number of springs is 2 times the number of slide rails. For example, the sliding guide rail has 2 rails, and then each side has 2 springs, and the total number of the springs is 4. When the sliding connection part moves to the limiting block at a stable speed, the spring is pressed, and the spring can apply a reaction force to the sliding connection part, so that the sliding connection part is decelerated. When the compression of the sliding connection portion to the spring is larger, the reaction force of the spring is larger, and the deceleration effect of the sliding connection portion is more remarkable. When the sliding connection part reaches a preset position and starts to move in a direction away from the spring, the force applied by the spring to the sliding connection part provides acceleration for the sliding connection part, so that the speed of the sliding connection part is quickly increased, and the stable speed is quickly reached.

The embodiment is suitable for linear reciprocating motion, and through the combined action of the limiting block and the spring, the sliding connection part can be decelerated and accelerated at the preset position, so that the sliding connection block can rapidly complete steering, the distance of the sliding connection block running at a stable speed is increased, and the effective data duty ratio of a test is improved.

In some embodiments, the two ends of the sliding guide rail include positioning areas, and the shapes of the positioning areas are different from those of the areas outside the sliding guide rail, so as to limit the movement range of the limiting block. The sliding connection part runs at a stable speed at a part outside the positioning area on the sliding guide rail, and decelerates and accelerates in the positioning area to reach the stable speed as soon as possible.

In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

The foregoing describes specific embodiments of the present utility model. It is to be understood that the utility model is not limited to the particular embodiments described above, and that various changes and modifications may be made by one skilled in the art within the scope of the claims without affecting the spirit of the utility model.

Claims (10)

1. A motion blur test guide rail, comprising:

a sliding guide rail;

the sliding connection part is in sliding connection with the sliding guide rail;

the fixing part is positioned above the sliding connection part to fix the test equipment;

the sliding connection part is detachably connected with the fixed part;

the sliding connection includes a first bushing to slide on the sliding rail.

2. The motion blur test rail of claim 1, further comprising:

the hinge is fixed on the main gear;

one end of the connecting piece is connected with the hinge, and the other end of the connecting piece is connected with the sliding connecting part, so that the fixed part moves along when the hinge rotates;

and the motor is used for providing power.

3. The motion blur test rail of claim 2, wherein the connector comprises:

the second sleeve is fixed on the sliding connecting part;

the connecting rod is rotatably arranged on the shaft sleeve;

the step nut is fixed on the hinge and connected with the connecting rod.

4. The motion blur test rail of claim 2, further comprising:

the transmission gear and the main gear are fixed on the same shaft;

and one end of the transmission hinge is connected with the motor, and the other end of the transmission hinge is connected with the transmission gear.

5. The motion blur test rail of claim 4, wherein the drive gear is a plurality of different sized coaxial gears such that the speed of movement of the test equipment can be controlled by adjusting the drive gear coupled to the drive hinge.

6. The motion blur test rail of claim 2, further comprising:

and the transfer gear is arranged between at least two main gears and is connected with the hinge.

7. The motion blur test rail of claim 6, wherein the transfer gear is the same size as the main gear.

8. A motion blur testing guide rail according to claim 2, characterized in that the hinge is the same shape as the sliding guide rail.

9. The motion blur test rail of claim 1, further comprising:

the limiting block is positioned on the sliding guide rail and used for limiting the position of the sliding connecting part;

and the spring is positioned between the limiting block and the end point of the sliding guide rail.

10. The motion blur test rail of claim 9, wherein the two ends of the slide rail include positioning regions having a shape different from a shape of the region outside the slide rail for limiting the range of motion of the stopper.