KR102155302B1 - Motion detecting apparatus and method for detecting motion using thereof - Google Patents

Abstract

A movement detection device according to an embodiment includes a light incident unit to which light is incident, a lens, and a movement detection unit including an optical sensor that detects a change in characteristics of light received through the lens, and an image capable of acquiring an image by receiving light The sensing unit and the movement detection unit may include a control unit that obtains an image of an object by acquiring a movement state of the object based on a change in characteristics of light detected by the movement detection unit, and controlling an operation of the image sensing unit based on the movement state of the object. .

Description

Movement detection device and movement detection method using the same {MOTION DETECTING APPARATUS AND METHOD FOR DETECTING MOTION USING THEREOF}

The invention disclosed by the present application relates to a movement detection device and a movement detection method using the same.

As a method of detecting movement of an object in the related art, there is an image processing method using an image sensor including a camera. Image processing using a camera has the advantage of being able to detect minute movement of an object due to its high resolution, but there is a problem that the image processing speed is slowed due to a large amount of computation, and thus, it is not suitable for detecting the movement of an object in real time.

An object according to an embodiment is to provide a movement detection device and a movement detection method for detecting movement of an object by combining an image processing device using an image sensor with a device for detecting a change in light passing through a lens.

The problem to be solved is not limited to the above-described problems, and problems that are not mentioned will be clearly understood by those of ordinary skill in the art from the present specification and the accompanying drawings.

According to an aspect, the movement detection device includes a light incidence unit into which light is incident, a lens, and a movement detection unit including an optical sensor that detects a change in characteristics of light received through the lens, and an image capable of receiving light to obtain an image The sensing unit and the movement detection unit may include a control unit that obtains an image of an object by acquiring a movement state of the object based on a change in characteristics of light detected by the movement detection unit, and controlling an operation of the image sensing unit based on the movement state of the object. .

In addition, a spectroscope for separating a traveling path of light into a first path and a second path may be further included, and the movement detection unit may receive light through the first path, and the image sensing unit may receive light through the second path.

In addition, the spectroscope transmits at least a part of the incident light and reflects another part of the incident light, thereby separating a path of light.

Also, the controller may set the region of interest according to the moving state of the object, and obtain an image of the region of interest through the image sensing unit.

Further, the movement sensing unit may include a lens array in which a plurality of lenses are arranged.

In addition, the movement detection unit includes a lens array in which a plurality of lenses are arranged, and the control unit may obtain at least one of whether an object moves, a movement speed, and a movement direction based on a change in characteristics of light detected by each lens.

In addition, the movement sensing unit may include a lens array in which a plurality of lenses are arranged in a hexagonal pattern.

Further, the movement detection unit includes a lens array in which a plurality of lenses are arranged, and an image processing speed of the controller may be determined according to the number of lenses per unit area included in the lens array.

Further, the movement detection unit includes a lens array in which a plurality of lenses are arranged, and the size of the region of interest may be determined according to the number of lenses per unit area included in the lens array.

In addition, at least one of a direction toward the light incidence unit, a focal length, an aperture, a wide angle, and an incident light amount may be adjusted.

In addition, the movement detection device may further include a display unit displaying an image of an object.

According to another embodiment, a method of detecting movement of an object includes receiving light through a light incidence unit, acquiring a movement state of the object based on a characteristic change of light passing through the lens, and based on the movement state of the object, It may include the step of obtaining an image of the object by controlling the image sensor.

In addition, the method for detecting movement of an object may further include setting an ROI based on a movement state of the object and acquiring an image of the ROI.

According to an embodiment, the movement detection device and the movement detection method may detect movement of an object at high speed by combining an image processing device using an image sensor with a device that detects a change in light passing through the lens. It can provide high-resolution images.

The effects are not limited to the above-described effects, and effects that are not mentioned will be clearly understood by those of ordinary skill in the art from the present specification and the accompanying drawings.

1 and 2 are block diagrams of embodiments of a movement sensing device.
3 is a block diagram of a movement detection unit according to an embodiment.
4 is a diagram illustrating a structure of a movement sensing device.
5 is a diagram illustrating a movement detection unit detecting movement of an object.
6 is a diagram of a lens array of a movement detection unit.
7 is a diagram of an optical signal received through the lens array of FIG. 6.
8 is a diagram illustrating a movement detection unit including a lens array detecting movement of an object.
9 is a diagram illustrating an embodiment of a method for detecting movement of an object using a movement detecting device.
10 is a diagram illustrating another embodiment of a method for detecting movement of an object using a movement detecting device.
11 is a diagram illustrating a change in a processing speed of a movement detection device according to the number of lenses included in the lens array.

Specific embodiments of the present invention will be described in detail with reference to the drawings. However, the spirit of the present invention is not limited to the presented embodiments, and those skilled in the art who understand the spirit of the present invention can add, change, or delete other elements within the scope of the same idea. Other embodiments included within the scope of the inventive concept may be easily proposed, but it will be said that this is also included within the scope of the inventive concept.

In addition, components having the same function within the scope of the same idea shown in the drawings of each embodiment will be described with the same reference numerals.

The terms used in the embodiments have selected general terms that are currently widely used as possible while considering functions in the present invention, but this may vary depending on the intention or precedent of a technician working in the field, the emergence of new technologies, and the like. In addition, in certain cases, there are terms arbitrarily selected by the applicant, and in this case, the meaning of the terms will be described in detail in the description of the corresponding invention. Therefore, the terms used in the present invention should be defined based on the meaning of the term and the overall contents of the present invention, not a simple name of the term.

When a part of the specification is said to "include" a certain component, it means that other components may be further included rather than excluding other components unless otherwise stated. In addition, terms such as "?? unit" and "?? module" described in the specification mean a unit that processes at least one function or operation, which may be implemented as hardware or software or a combination of hardware and software. have.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art may easily implement the present invention. However, the present invention may be implemented in various different forms and is not limited to the embodiments described herein.

1 and 2 are block diagrams of exemplary embodiments of a movement sensing device 100. Referring to FIG. 1, the movement detection device 100 may include a light incident unit 110, a movement detection unit 120, an image sensing unit 130 and a control unit 140. Referring to FIG. 2, The movement detection device 100 may further include a spectrometer 150 and a display 160.

Light emitted from the object 10 through the light incidence unit 110 may enter the movement detection device 100. The light incident unit 110 may receive light emitted from the object 10.

The light incidence unit 110 may provide a path through which light can pass.

The light incident unit 110 may include an optical system through which light can be transmitted. For example, the light incidence unit 110 includes an optical system composed of a concave lens, a convex lens, a lens having both surfaces of a curved surface, a lens having one surface of both surfaces of a plane, a window, a reflector, or a prism, or a combination thereof. can do. In this case, the focal length and aperture of each lens may be different. The light incidence unit 110 may include various configurations designed to effectively enter the light into the movement detection device 100.

Light incident through the light incident unit 110 may reach the movement detection unit 120 along a light path designed inside the movement detection device 100. In addition, light incident through the light incident unit 110 may reach the image sensing unit 130 along an optical path designed inside the movement sensing device 100. The optical path toward the movement sensing unit 120 and the optical path toward the image sensing unit 130 may be designed to be differently separated. Accordingly, the movement sensing unit 120 and the image sensing unit 130 may receive light emitted from the same object 10 along respective paths.

The movement detection unit 120 may detect light passing through the lens and detect a change in characteristics of light. The movement detector 120 may acquire a movement state of the object 10 based on a change in light characteristics.

According to an embodiment, the movement detection unit 120 transmits information such as a characteristic value of the detected light and a change in the characteristic value of the light to the control unit 140, and through the control unit 140, the object 10 ) Can be acquired.

According to another embodiment, the movement detection unit 120 may include a control unit (not shown) built in itself. The movement detector 120 may detect a change in characteristics of light, and obtain a moving state of the object 10 based on a change in characteristics of light through an embedded control unit (not shown).

The moving state of the object 10 is, for example, whether the object 10 is moving, the moving speed of the object 10, the acceleration of the moving object 10, the moving direction of the object 10, and the moving object 10 It may include information about the number of players, etc.

The image sensing unit 130 may receive light emitted from the object 10 and convert it into an electric signal. Accordingly, the image sensing unit 130 may acquire an image of the object 10.

Image information acquired by the image sensing unit 130 may be stored in a memory (not shown). Image information acquired by the image sensing unit 130 may be displayed through the display 160.

The image sensing unit 130 may obtain information about the color of the object 10 by combining with a color filter. The image sensing unit 130 may include, for example, a CCD sensor or a CMOS sensor.

The image sensing unit 130 may include a plurality of sensing elements arranged according to a predetermined pattern, and the image sensing unit 130 may acquire images corresponding to each pixel through each sensing element.

The image sensing unit 130 may individually control a plurality of sensor elements. For example, the sensor elements of the image sensing unit 130 may be arranged in columns and rows. The image sensing unit 130 may acquire an image through some of the plurality of sensor elements, and may not acquire an image through another part. Accordingly, the image sensing unit 130 may perform high-speed operation by acquiring an image only for a specific region of interest, as described in more detail later with reference to FIG. 10.

The image sensing unit 130 may transmit the acquired image information to the controller 140 and may operate according to a control signal received from the controller 140.

Meanwhile, according to an embodiment, the image sensing unit 130 may include a built-in control unit (not shown), and the control unit (not shown) interprets image information, corrects an image, and uses each sensor element. Operation control, etc. can be performed.

The spectrometer 150 may separate a path through which light travels so that light incident through the light incident unit 110 reaches the movement detection unit 120 and the image sensing unit 130, respectively. The spectrometer 150 may be, for example, a splitter that separates light by transmitting a part of incident light and reflecting another part. Alternatively, the spectrometer 150 may be, for example, an optical fiber connected to the light incident unit 110. The optical fiber is connected to the light incident unit 110 through one end, and the other end may be divided into a plurality of paths as the optical fiber extends.

Accordingly, light incident through the light incidence unit 110 may travel along different optical paths through the spectroscope 150. The movement detection unit 120 and the image sensing unit 130 each receive light traveling along an optical path, the movement detection unit 120 performs a movement detection function, and the image sensing unit 130 has an image acquisition function. Can be done.

The movement detection unit 120 and the image sensing unit 130 each receive light through different optical paths, but the received optical signals are emitted from the same object 10 and include the same information.

The control unit 140 may overall control the operation of each component of the movement detection device 100. The controller 140 is connected to the movement detection unit 120 to receive information on a change in optical characteristics detected by the movement detection unit 120, and obtains a movement state of the object 10 based on the change in the optical characteristics. have. The control unit 140 acquiring the moving state of the object 10 will be described in more detail later with reference to FIGS. 5 to 8. The control unit 140 may transmit a control signal to the movement detection unit 120 to adjust the sensitivity of the movement detection unit 120 or control whether the movement detection unit 120 is operated or not.

The controller 140 may be connected to the image sensing unit 130 to receive information on an image acquired by the image sensing unit 130 and store information on the image in a memory. The controller 140 may control an operation of the image sensing unit 130 by transmitting a control signal to the image sensing unit 130. For example, the controller 140 may transmit a control signal to obtain an image for only some pixels of the image sensing unit 130. This will be described later in more detail with reference to FIGS. 9 to 10.

The controller 140 is connected to the light incident unit 110 and may control the operation of the light incident unit 110. For example, the controller 140 may adjust characteristics of the optical system, such as a direction, a focal length, an aperture, a wide angle, and an incident light amount of the light incident unit 110.

The controller 140 may be connected to the display 160 to control the operation of the display 160. The controller 140 may display an image through the display 160.

The controller 140 may be connected to a communication unit (not shown) to transmit information on the acquired image to an external device (not shown). The external device may receive image information and display an image through its own display 160.

The control unit 140 includes at least one processor. The processor may be implemented as an array of a plurality of logic gates, or may be implemented as a combination of a general-purpose microprocessor and a memory in which a program executable in the microprocessor is stored. In addition, it can be understood by those of ordinary skill in the art to which the present embodiment pertains that it may be implemented with other types of hardware.

The display 160 may display an image acquired through the image sensing unit 130 under the control of the controller 140. The display 160 may display information on the moving state of the object 10 under the control of the controller 140.

According to an embodiment, the display 160 may function as an input unit that receives a user's input. The display 160 may receive a user input by providing a UI or a GUI.

The display 160 includes a liquid crystal display, a thin film transistor-liquid crystal display, an organic light-emitting diode, a flexible display, and a three-dimensional display (3D). display).

The display 160 may be a component additionally provided in the movement detection device 100, and the movement detection device 100 does not necessarily include the display 160.

3 is a block diagram of the movement detector 120 according to an embodiment. Referring to FIG. 3, a lens and an optical sensor may be included.

Light incident on the movement detection unit 120 may pass through the lens and reach the optical sensor.

As the light passes through the lens, a change may occur in the light properties. For example, when the object 10 is positioned at a point where the viewing angle of the lens becomes the outer angle, the intensity of incident light is reduced through the entrance pupil according to the Cosine-Fourth-Power Law due to distortion of the lens and the effect of the aperture.

The controller 140 may determine a moving state of the object 10 based on a change in optical characteristics sensed through the movement detecting unit 120.

The lens may be a single lens, or may be a lens array composed of a plurality of lenses arranged according to a predetermined pattern. When the movement detection unit 120 includes a lens array, the controller 140 may obtain information on the movement direction of the object 10 based on a change in optical characteristics detected by each lens constituting the lens array. .

Acquiring the moving state of the object 10 will be described in more detail with reference to FIGS. 5 to 8.

The optical sensor is a sensor that converts optical energy into electrical energy, and may be, for example, a sensor that detects light or a sensor that detects the intensity of light. The light sensor uses, for example, a photoelectric effect, a photoconduction effect, a photovoltaic effect, etc. to detect changes in electrons upon receiving light, or a thermal effect. Thus, it may be a sensor that detects a temperature change occurring in a device that absorbs light and a change in electrical characteristics of the device accordingly.

4 is a diagram illustrating the structure of the movement detection device 100. Referring to FIG. 4, light emitted from the object 10 may enter the movement detection device 100 through the light incidence unit 110. The light incidence unit 110 may receive light and may guide the light to reach the spectrometer 150.

Characteristics of the optical system, such as a direction toward the light incidence unit 110, a focal length, an aperture, a wide angle, and an amount of incident light, may be adjusted according to the size of the observation area and the distance to the target object 10. Characteristics of the optical system, such as a direction, a focal length, an aperture, a wide angle, and an incident light amount, that the light incidence unit 110 faces may be adjusted by the controller 140 or mechanically by a user.

The spectroscope 150 reflects part of the light to reach the movement detection unit 120, and transmits another part of the light to reach the image sensing unit 130. In FIG. 4, the spectrometer 150 is illustrated as a splitter having transmittance and reflectivity, but the spectrometer 150 is not limited to the splitter.

In FIG. 4, it is illustrated that reflected light of incident light reaches the movement sensing unit 120 and transmitted light reaches the image sensing unit 130, but is not limited thereto. For example, reflected light may reach the image sensing unit 130 and transmitted light may reach the movement sensing unit 120.

In other words, the arrangement of the spectroscope 150, the movement detection unit 120, and the image sensing unit 130 may be variously changed. For example, the movement detection unit 120 may be disposed in various directions, such as one side, rear, or front of the spectrometer 150, and the image sensing unit 130 is one side, rear, or front of the spectrometer 150. It can be placed in various directions. To this end, the movement detection device 100 may further include an optical system that combines with the spectroscope 150 to set a traveling path of light in a specific direction.

For example, the movement detection device 100 includes a concave lens coupled with the spectroscope 150, a convex lens, a lens having both surfaces of a curved surface, a lens having one surface of both surfaces, a window, a reflector, or a prism, or the like. It may include an optical system made of a combination of. In this case, the focal length and aperture of each lens may be different.

5 is a diagram illustrating that the movement detection unit 120 detects the movement of the object 10. Referring to FIG. 5, light emitted from the object 10 may reach an optical sensor through a lens. In this case, the intensity of light detected by the optical sensor may be different according to the position of the object 10. For example, the intensity of light (I1) detected by the optical sensor when the object 10 is located at the first point and the intensity of light (I2) detected by the optical sensor when the object 10' is located at the second point. ) Can be different. In other words, as the object moves from the first point to the second point, the light intensity detected by the optical sensor may change from I1 to I2.

The movement detection unit 120 may transmit information on the light intensity detected through the optical sensor to the control unit 140, and the control unit 140 determines the movement state of the object 10 based on the change in the light intensity. can do. For example, the controller 140 may determine that the object 10 has moved based on a change in the light intensity from I1 to I2.

In the example described above with reference to FIG. 5, it has been described that the movement of the object 10 is detected based only on the light intensity, but the characteristics of light are not limited only to the light intensity. For example, the movement detection device 100 may detect the movement of the object 10 based on a change in the frequency and wavelength of the received light or electromagnetic wave among optical characteristics.

6 is a diagram illustrating a lens array of the movement detection unit 120. Referring to FIG. 6, there may be a plurality of lenses of the movement detection unit 120. The lenses may be arranged according to a predetermined pattern to form a lens array.

The plurality of lenses may be arranged according to a matrix pattern including columns and rows, polygonal patterns such as triangles, squares, and pentagons. For example, a plurality of lenses may be arranged in a hexagonal pattern as shown in FIG. 6 to form a lens array. Although seven lenses are shown in FIG. 6, the number of lenses is not limited thereto, and a plurality of lenses maintaining a hexagonal pattern may form a lens array.

As the lens array is arranged in a hexagonal pattern, each of the lenses may be adjacent to other lenses along the three-way axis. Accordingly, the movement detection unit 120 may detect a change in characteristics of light on an axis in three directions, and the movement detection device 100 may obtain a moving state of the object 10 on an axis in three directions.

7 is a diagram of an optical signal received through the lens array of FIG. 6. Referring to FIG. 7, as light passes through a lens, a change may occur in optical characteristics detected by the optical sensor. For example, when the object 10 is positioned at a point where the viewing angle of the lens becomes the outer angle, the intensity of incident light is reduced through the entrance pupil according to the Cosine-Fourth-Power Law due to distortion of the lens and the effect of the aperture. Accordingly, the intensity of light sensed in the central region of the lens may have a maximum value. The intensity of light may decrease from the central area of the lens to the outer area.

As the lenses are arranged according to the hexagonal pattern, the increase or decrease of the light intensity may be repeated along the axes of three directions. For example, the intensity of light decreases toward the outer area of the lens, but as it proceeds further in the outer direction, the intensity of light may increase again since it approaches the center area of another adjacent lens.

FIG. 8 is a diagram illustrating a movement detection unit 120 including a lens array detecting movement of an object 10. Referring to FIG. 8, light emitted from the object 10 may reach the optical sensor through the first lens 122a or the second lens 122b.

The intensity of light detected by the optical sensor may be different depending on the position of the object 10. For example, the intensity I1 of light passing through the first lens 122a detected by the optical sensor when the object 10 is positioned at the first point, and when the object 10' is positioned at the second point The intensity I2 of light passing through the first lens 122a detected by the optical sensor may be different. In other words, as the object moves from the first point to the second point, the intensity of light passing through the first lens 122a detected by the optical sensor may change from I1 to I2. For example, at the first point, the object 10 is located at the center of the first lens 122a, whereas at the second point, the object 10' is at the outer edge of the first lens 122a, so I1 is May be greater than I2.

In addition, the intensity I3 of light passing through the second lens 122b detected by the optical sensor when the object 10 is positioned at the first point and the optical sensor when the object 10' is positioned at the second point The intensity I4 of light that has passed through the second lens 122b sensed by may be different. In other words, as the object moves from the first point to the second point, the intensity of light passing through the second lens 122b detected by the optical sensor may change from I3 to I4. For example, at the first point, the object 10 is located in the outer area of the second lens 122b, while the object 10' at the second point is located in the center of the second lens 122b, so I3 Can be greater than I4.

The movement detection unit 120 may transmit information on the intensity of light sensed through the optical sensor to the controller 140, and the controller 140 may transmit the object 10 based on a change in the intensity of light passing through each lens. It is possible to determine the state of movement. For example, the controller 140 may determine the moving direction of the object 10 based on a change in intensity of light passing through the first lens 122a and a change in intensity of light passing through the second lens 122b. have. For a specific example, when the intensity of light passing through the first lens 122a decreases from I1 to I2, but the intensity of light passing through the second lens 122b increases from I3 to I4, the controller 140 It may be determined that is moved from a first point close to the first lens 122a toward a second point close to the second lens.

In the example described with reference to FIG. 8, it has been described that the movement of the object 10 is detected based only on the light intensity, but the characteristics of light are not limited only to the light intensity. For example, the movement detection device 100 may detect the movement of the object 10 based on a change in the frequency and wavelength of the received light or electromagnetic wave among optical characteristics.

9 is a diagram illustrating an embodiment of a method for detecting movement of an object 10 using the movement detecting device 100. Referring to FIG. 9, the movement detection device 100 may receive light through the light incidence unit 110 (S1100 ). The above-described matters through FIG. 4 may be applied to step S1100.

The movement detection device 100 may acquire a movement state of the object 10 based on a change in characteristics of light sensed through the movement detection unit 120 (S1200). The items described above through FIGS. 5 to 8 may be applied to step S1200.

The movement detection device 100 may acquire an image of the object 10 by controlling the image sensing unit 130 based on the movement state of the object 10 (S1300).

When the movement state of the object 10 satisfies a predetermined condition, the movement detection device 100 may control the image sensing unit 130 to obtain an image of the object 10. Accordingly, the movement sensing device 100 may effectively acquire an image of the object 10 according to the moving state of the object 10. The movement detection device 100 can improve the processing speed of an operation for obtaining an image of the moving object 10, save power required for unnecessary calculations, and the resolution of the image of the moving object 10 is You can keep it in high quality.

For example, when movement of the object 10 is detected, the movement detection device 100 may operate the image sensing unit 130 to obtain an image. Accordingly, the movement detection device 100 may acquire an image only when the object 10 moves.

For another example, when the moving speed of the object 10 is greater than or equal to a predetermined speed value, the movement sensing device 100 may operate the image sensing unit 130 to obtain an image. Accordingly, the movement detection apparatus 100 may acquire an image only for the object 10 moving at high speed.

For another example, when the number of moving objects 10 is greater than or equal to a predetermined number, the movement sensing device 100 may operate the image sensing unit 130 to obtain an image. Accordingly, the movement detection device 100 may acquire an image when a plurality of objects 10 move.

For another example, when the movement of the object 10 stops, the movement detection device 100 may operate the image sensing unit 130 to obtain an image. Accordingly, the movement detection apparatus 100 may acquire an image only for the stationary object 10.

10 is a diagram illustrating another embodiment of a method for detecting movement of an object 10 using the movement detecting device 100. Referring to FIG. 10, the movement detection device 100 may receive light through the light incidence unit 110 (S1100 ). The above-described matters through FIG. 4 may be applied to step S1100.

The movement detection device 100 may acquire a movement state of the object 10 based on a change in characteristics of light sensed through the movement detection unit 120 (S1200). The items described above through FIGS. 5 to 8 may be applied to step S1200.

The movement detection device 100 may set the region of interest based on the movement state of the object 10 (S1320). The controller 140 may recognize the target area based on receiving a signal through the lens array and the optical sensor. The target area may be a space having a volume, or may be a flat surface.

Positions of individual lenses constituting the lens array may correspond to a point in the target area. Alternatively, the optical sensor may include a plurality of sensor elements as its constituent units, and the position of the sensor element may correspond to a point in the target area.

The control unit 140 may set one of the target regions as an ROI. The controller 140 may set the region of interest according to a predetermined condition. For example, the region of interest may be a region in which movement of the object 10 is detected. The region of interest may be a region in which the moving speed of the object 10 is greater than or equal to a predetermined speed value. The ROI may be an area in which the number of moving objects 10 is greater than or equal to a predetermined number. The region of interest may be a region in which movement of the object 10 is not detected.

The movement sensing device 100 may acquire an image of the ROI by controlling the image sensing unit 130 (S1340). The movement sensing device 100 may control the image sensing unit 130 to acquire an image only for the region of interest.

The image sensing unit 130 may include a plurality of sensor elements constituting a pixel, and a location of each sensor element may correspond to an area of the target area. The target area detected by the control unit 140 through the movement detection unit 120 and the target area detected by the image sensing unit 130 may be the same or mutually compatible.

Thereafter, the controller 140 may acquire an image through the sensor element corresponding to the region of interest, but may stop obtaining the image of the sensor element corresponding to the region other than the region of interest.

Alternatively, according to an embodiment, the controller 140 may acquire images for all target areas, but may process image only for the ROI. Thus, for example, image processing may be an operation for obtaining a high-resolution image such as correction.

As a result, the image sensing apparatus acquires an image only for the region of interest, thereby reducing power consumption, increasing an operation processing speed, and obtaining a high-resolution image.

11 is a diagram illustrating a change in a processing speed of the movement detection device 100 according to the number of lenses included in the lens array.

Referring to FIG. 11A, a processing speed for detecting movement of an object 10 and a resolution of an image to be acquired may be determined according to the number of lenses per unit area constituting the lens array. Specifically, as the number of lenses per unit area constituting the lens array of the movement detector 120 increases, the resolution of the image may increase. Meanwhile, as the number of lenses per unit area constituting the lens array of the movement detector 120 increases, a processing speed for detecting movement of the object 10 may decrease.

As the number of lenses per unit area constituting the lens array increases, the size of each individual lens may decrease. In this case, the number of optical signals passing through each lens may increase. Accordingly, the size of each pixel of the target region recognized by the controller 140 may be small, and the number of pixels may increase. Accordingly, the resolution of the image can be increased, and the processing speed can be decreased because the number of operations to be processed for motion detection increases.

Referring to FIG. 11B, the image acquisition and processing speed through the image sensing unit 130 may be determined according to the number of lenses per unit area included in the lens array. Specifically, as the number of lenses per unit area constituting the lens array of the movement detector 120 increases, a speed for image acquisition and processing may increase.

As the number of lenses per unit area constituting the lens array increases, the size of each individual lens may decrease. In this case, the controller 140 may recognize the target region based on each lens and the optical sensor, and when the size of each lens decreases, the unit body of the target region may also decrease. Accordingly, the size of the ROI may be reduced. In other words, the size of the region of interest may be determined according to the number of lenses per unit area included in the lens array. Accordingly, the amount of computation for obtaining an image of the region of interest may decrease, and a processing speed for obtaining an image may increase.

The movement detection device 100 considers an increase or decrease in the processing speed for detecting the movement of the object 10 and the processing speed for acquiring the image according to the number of lenses per unit area constituting the lens array, and adjusts the overall optimal processing speed. The number of lenses per unit area to be expressed can be determined.

In the above, the configuration and features of the present invention have been described based on the embodiments according to the present invention, but the present invention is not limited thereto, and it is understood that various changes or modifications can be made within the spirit and scope of the present invention. It will be apparent to those skilled in the art, and therefore, such changes or modifications are found to belong to the appended claims.

Specific embodiments of the present invention will be described in detail with reference to the drawings. However, the spirit of the present invention is not limited to the presented embodiments, and those skilled in the art who understand the spirit of the present invention can add, change, or delete other elements within the scope of the same idea. Other embodiments included within the scope of the inventive concept may be easily proposed, but it will be said that this is also included within the scope of the inventive concept.
In addition, components having the same function within the scope of the same idea shown in the drawings of each embodiment will be described with the same reference numerals.
The terms used in the embodiments have selected general terms that are currently widely used as possible while considering functions in the present invention, but this may vary depending on the intention or precedent of a technician working in the field, the emergence of new technologies, and the like. In addition, in certain cases, there are terms arbitrarily selected by the applicant, and in this case, the meaning of the terms will be described in detail in the description of the corresponding invention. Therefore, the terms used in the present invention should be defined based on the meaning of the term and the overall contents of the present invention, not a simple name of the term.
When a part of the specification is said to "include" a certain component, it means that other components may be further included rather than excluding other components unless otherwise stated. In addition, terms such as "?? unit" and "?? module" described in the specification mean a unit that processes at least one function or operation, which may be implemented as hardware or software or a combination of hardware and software. have.
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art may easily implement the present invention. However, the present invention may be implemented in various different forms and is not limited to the embodiments described herein.
1 and 2 are block diagrams of exemplary embodiments of a movement sensing device 100. Referring to FIG. 1, the movement detection device 100 may include a light incident unit 110, a movement detection unit 120, an image sensing unit 130 and a control unit 140. Referring to FIG. 2, The movement detection device 100 may further include a spectrometer 150 and a display 160.
Light emitted from the object 10 through the light incidence unit 110 may enter the movement detection device 100. The light incident unit 110 may receive light emitted from the object 10.
The light incidence unit 110 may provide a path through which light can pass.
The light incident unit 110 may include an optical system through which light can be transmitted. For example, the light incidence unit 110 includes an optical system composed of a concave lens, a convex lens, a lens having both surfaces of a curved surface, a lens having one surface of both surfaces of a plane, a window, a reflector, or a prism, or a combination thereof. can do. In this case, the focal length and aperture of each lens may be different. The light incidence unit 110 may include various configurations designed to effectively enter the light into the movement detection device 100.
Light incident through the light incident unit 110 may reach the movement detection unit 120 along a light path designed inside the movement detection device 100. In addition, light incident through the light incident unit 110 may reach the image sensing unit 130 along an optical path designed inside the movement sensing device 100. The optical path toward the movement sensing unit 120 and the optical path toward the image sensing unit 130 may be designed to be differently separated. Accordingly, the movement sensing unit 120 and the image sensing unit 130 may receive light emitted from the same object 10 along respective paths.
The movement detection unit 120 may detect light passing through the lens and detect a change in characteristics of light. The movement detector 120 may acquire a movement state of the object 10 based on a change in light characteristics.
According to an embodiment, the movement detection unit 120 transmits information such as a characteristic value of the detected light and a change in the characteristic value of the light to the control unit 140, and through the control unit 140, the object 10 ) Can be acquired.
According to another embodiment, the movement detection unit 120 may include a control unit (not shown) built in itself. The movement detector 120 may detect a change in characteristics of light, and obtain a moving state of the object 10 based on a change in characteristics of light through an embedded control unit (not shown).
The moving state of the object 10 is, for example, whether the object 10 is moving, the moving speed of the object 10, the acceleration of the moving object 10, the moving direction of the object 10, and the moving object 10 It may include information about the number of players, etc.
The image sensing unit 130 may receive light emitted from the object 10 and convert it into an electric signal. Accordingly, the image sensing unit 130 may acquire an image of the object 10.
Image information acquired by the image sensing unit 130 may be stored in a memory (not shown). Image information acquired by the image sensing unit 130 may be displayed through the display 160.
The image sensing unit 130 may obtain information about the color of the object 10 by combining with a color filter. The image sensing unit 130 may include, for example, a CCD sensor or a CMOS sensor.
The image sensing unit 130 may include a plurality of sensing elements arranged according to a predetermined pattern, and the image sensing unit 130 may acquire images corresponding to each pixel through each sensing element.
The image sensing unit 130 may individually control a plurality of sensor elements. For example, the sensor elements of the image sensing unit 130 may be arranged in columns and rows. The image sensing unit 130 may acquire an image through some of the plurality of sensor elements, and may not acquire an image through another part. Accordingly, the image sensing unit 130 may perform high-speed operation by acquiring an image only for a specific region of interest, as described in more detail later with reference to FIG. 10.
The image sensing unit 130 may transmit the acquired image information to the controller 140 and may operate according to a control signal received from the controller 140.
Meanwhile, according to an embodiment, the image sensing unit 130 may include a built-in control unit (not shown), and the control unit (not shown) interprets image information, corrects an image, and uses each sensor element. Operation control, etc. can be performed.
The spectrometer 150 may separate a path through which light travels so that light incident through the light incident unit 110 reaches the movement detection unit 120 and the image sensing unit 130, respectively. The spectrometer 150 may be, for example, a splitter that separates light by transmitting a part of incident light and reflecting another part. Alternatively, the spectrometer 150 may be, for example, an optical fiber connected to the light incident unit 110. The optical fiber is connected to the light incident unit 110 through one end, and the other end may be divided into a plurality of paths as the optical fiber extends.
Accordingly, light incident through the light incidence unit 110 may travel along different optical paths through the spectroscope 150. The movement detection unit 120 and the image sensing unit 130 each receive light traveling along an optical path, the movement detection unit 120 performs a movement detection function, and the image sensing unit 130 has an image acquisition function. Can be done.
The movement detection unit 120 and the image sensing unit 130 each receive light through different optical paths, but the received optical signals are emitted from the same object 10 and include the same information.
The control unit 140 may overall control the operation of each component of the movement detection device 100. The controller 140 is connected to the movement detection unit 120 to receive information on a change in optical characteristics detected by the movement detection unit 120, and obtains a movement state of the object 10 based on the change in the optical characteristics. have. The control unit 140 acquiring the moving state of the object 10 will be described in more detail later with reference to FIGS. 5 to 8. The control unit 140 may transmit a control signal to the movement detection unit 120 to adjust the sensitivity of the movement detection unit 120 or control whether the movement detection unit 120 is operated or not.
The controller 140 may be connected to the image sensing unit 130 to receive information on an image acquired by the image sensing unit 130 and store information on the image in a memory. The controller 140 may control an operation of the image sensing unit 130 by transmitting a control signal to the image sensing unit 130. For example, the controller 140 may transmit a control signal to obtain an image for only some pixels of the image sensing unit 130. This will be described later in more detail with reference to FIGS. 9 to 10.
The controller 140 is connected to the light incident unit 110 and may control the operation of the light incident unit 110. For example, the controller 140 may adjust characteristics of the optical system, such as a direction, a focal length, an aperture, a wide angle, and an incident light amount of the light incident unit 110.
The controller 140 may be connected to the display 160 to control the operation of the display 160. The controller 140 may display an image through the display 160.
The controller 140 may be connected to a communication unit (not shown) to transmit information on the acquired image to an external device (not shown). The external device may receive image information and display an image through its own display 160.
The control unit 140 includes at least one processor. The processor may be implemented as an array of a plurality of logic gates, or may be implemented as a combination of a general-purpose microprocessor and a memory in which a program executable in the microprocessor is stored. In addition, it can be understood by those of ordinary skill in the art to which the present embodiment pertains that it may be implemented with other types of hardware.
The display 160 may display an image acquired through the image sensing unit 130 under the control of the controller 140. The display 160 may display information on the moving state of the object 10 under the control of the controller 140.
According to an embodiment, the display 160 may function as an input unit that receives a user's input. The display 160 may receive a user input by providing a UI or a GUI.
The display 160 includes a liquid crystal display, a thin film transistor-liquid crystal display, an organic light-emitting diode, a flexible display, and a three-dimensional display (3D). display).
The display 160 may be a component additionally provided in the movement detection device 100, and the movement detection device 100 does not necessarily include the display 160.
3 is a block diagram of the movement detector 120 according to an embodiment. Referring to FIG. 3, a lens and an optical sensor may be included.
Light incident on the movement detection unit 120 may pass through the lens and reach the optical sensor.
As the light passes through the lens, a change may occur in the light properties. For example, when the object 10 is positioned at a point where the viewing angle of the lens becomes the outer angle, the intensity of incident light is reduced through the entrance pupil according to the Cosine-Fourth-Power Law due to distortion of the lens and the effect of the aperture.
The controller 140 may determine a moving state of the object 10 based on a change in optical characteristics sensed through the movement detecting unit 120.
The lens may be a single lens, or may be a lens array composed of a plurality of lenses arranged according to a predetermined pattern. When the movement detection unit 120 includes a lens array, the controller 140 may obtain information on the movement direction of the object 10 based on a change in optical characteristics detected by each lens constituting the lens array. .
Acquiring the moving state of the object 10 will be described in more detail with reference to FIGS. 5 to 8.
The optical sensor is a sensor that converts optical energy into electrical energy, and may be, for example, a sensor that detects light or a sensor that detects the intensity of light. The light sensor uses, for example, a photoelectric effect, a photoconduction effect, a photovoltaic effect, etc. to detect changes in electrons upon receiving light, or a thermal effect. Thus, it may be a sensor that detects a temperature change occurring in a device that absorbs light and a change in electrical characteristics of the device accordingly.
4 is a diagram illustrating the structure of the movement detection device 100. Referring to FIG. 4, light emitted from the object 10 may enter the movement detection device 100 through the light incidence unit 110. The light incidence unit 110 may receive light and may guide the light to reach the spectrometer 150.
Characteristics of the optical system, such as a direction toward the light incidence unit 110, a focal length, an aperture, a wide angle, and an amount of incident light, may be adjusted according to the size of the observation area and the distance to the target object 10. Characteristics of the optical system, such as a direction, a focal length, an aperture, a wide angle, and an incident light amount, that the light incidence unit 110 faces may be adjusted by the controller 140 or mechanically by a user.
The spectroscope 150 reflects part of the light to reach the movement detection unit 120, and transmits another part of the light to reach the image sensing unit 130. In FIG. 4, the spectrometer 150 is illustrated as a splitter having transmittance and reflectivity, but the spectrometer 150 is not limited to the splitter.
In FIG. 4, it is illustrated that reflected light of incident light reaches the movement sensing unit 120 and transmitted light reaches the image sensing unit 130, but is not limited thereto. For example, reflected light may reach the image sensing unit 130 and transmitted light may reach the movement sensing unit 120.
In other words, the arrangement of the spectroscope 150, the movement detection unit 120, and the image sensing unit 130 may be variously changed. For example, the movement detection unit 120 may be disposed in various directions, such as one side, rear, or front of the spectrometer 150, and the image sensing unit 130 is one side, rear, or front of the spectrometer 150. It can be placed in various directions. To this end, the movement detection device 100 may further include an optical system that combines with the spectroscope 150 to set a traveling path of light in a specific direction.
For example, the movement detection device 100 includes a concave lens coupled with the spectroscope 150, a convex lens, a lens having both surfaces of a curved surface, a lens having one surface of both surfaces, a window, a reflector, or a prism, or the like. It may include an optical system made of a combination of. In this case, the focal length and aperture of each lens may be different.
5 is a diagram illustrating that the movement detection unit 120 detects the movement of the object 10. Referring to FIG. 5, light emitted from the object 10 may reach an optical sensor through a lens. In this case, the intensity of light detected by the optical sensor may be different according to the position of the object 10. For example, the intensity of light (I1) detected by the optical sensor when the object 10 is located at the first point and the intensity of light (I2) detected by the optical sensor when the object 10' is located at the second point. ) Can be different. In other words, as the object moves from the first point to the second point, the light intensity detected by the optical sensor may change from I1 to I2.
The movement detection unit 120 may transmit information on the light intensity detected through the optical sensor to the control unit 140, and the control unit 140 determines the movement state of the object 10 based on the change in the light intensity. can do. For example, the controller 140 may determine that the object 10 has moved based on a change in the light intensity from I1 to I2.
In the example described above with reference to FIG. 5, it has been described that the movement of the object 10 is detected based only on the light intensity, but the characteristics of light are not limited only to the light intensity. For example, the movement detection device 100 may detect the movement of the object 10 based on a change in the frequency and wavelength of the received light or electromagnetic wave among optical characteristics.
6 is a diagram illustrating a lens array of the movement detection unit 120. Referring to FIG. 6, there may be a plurality of lenses of the movement detection unit 120. The lenses may be arranged according to a predetermined pattern to form a lens array.
The plurality of lenses may be arranged according to a matrix pattern including columns and rows, polygonal patterns such as triangles, squares, and pentagons. For example, a plurality of lenses may be arranged in a hexagonal pattern as shown in FIG. 6 to form a lens array. Although seven lenses are shown in FIG. 6, the number of lenses is not limited thereto, and a plurality of lenses maintaining a hexagonal pattern may form a lens array.
As the lens array is arranged in a hexagonal pattern, each of the lenses may be adjacent to other lenses along the three-way axis. Accordingly, the movement detection unit 120 may detect a change in characteristics of light on an axis in three directions, and the movement detection device 100 may obtain a moving state of the object 10 on an axis in three directions.
7 is a diagram of an optical signal received through the lens array of FIG. 6. Referring to FIG. 7, as light passes through a lens, a change may occur in optical characteristics detected by the optical sensor. For example, when the object 10 is positioned at a point where the viewing angle of the lens becomes the outer angle, the intensity of incident light is reduced through the entrance pupil according to the Cosine-Fourth-Power Law due to distortion of the lens and the effect of the aperture. Accordingly, the intensity of light sensed in the central region of the lens may have a maximum value. The intensity of light may decrease from the central area of the lens to the outer area.
As the lenses are arranged according to the hexagonal pattern, the increase or decrease of the light intensity may be repeated along the axes of three directions. For example, the intensity of light decreases toward the outer area of the lens, but as it proceeds further in the outer direction, the intensity of light may increase again since it approaches the center area of another adjacent lens.
FIG. 8 is a diagram illustrating a movement detection unit 120 including a lens array detecting movement of an object 10. Referring to FIG. 8, light emitted from the object 10 may reach the optical sensor through the first lens 122a or the second lens 122b.
The intensity of light detected by the optical sensor may be different depending on the position of the object 10. For example, the intensity I1 of light passing through the first lens 122a detected by the optical sensor when the object 10 is positioned at the first point, and when the object 10' is positioned at the second point The intensity I2 of light passing through the first lens 122a detected by the optical sensor may be different. In other words, as the object moves from the first point to the second point, the intensity of light passing through the first lens 122a detected by the optical sensor may change from I1 to I2. For example, at the first point, the object 10 is located at the center of the first lens 122a, whereas at the second point, the object 10' is at the outer edge of the first lens 122a, so I1 is May be greater than I2.
In addition, the intensity I3 of light passing through the second lens 122b detected by the optical sensor when the object 10 is positioned at the first point and the optical sensor when the object 10' is positioned at the second point The intensity I4 of light that has passed through the second lens 122b sensed by may be different. In other words, as the object moves from the first point to the second point, the intensity of light passing through the second lens 122b detected by the optical sensor may change from I3 to I4. For example, at the first point, the object 10 is located in the outer area of the second lens 122b, while the object 10' at the second point is located in the center of the second lens 122b, so I3 Can be greater than I4.
The movement detection unit 120 may transmit information on the intensity of light sensed through the optical sensor to the controller 140, and the controller 140 may transmit the object 10 based on a change in the intensity of light passing through each lens. It is possible to determine the state of movement. For example, the controller 140 may determine the moving direction of the object 10 based on a change in intensity of light passing through the first lens 122a and a change in intensity of light passing through the second lens 122b. have. For a specific example, when the intensity of light passing through the first lens 122a decreases from I1 to I2, but the intensity of light passing through the second lens 122b increases from I3 to I4, the controller 140 It may be determined that is moved from a first point close to the first lens 122a toward a second point close to the second lens.
In the example described with reference to FIG. 8, it has been described that the movement of the object 10 is detected based only on the light intensity, but the characteristics of light are not limited only to the light intensity. For example, the movement detection device 100 may detect the movement of the object 10 based on a change in the frequency and wavelength of the received light or electromagnetic wave among optical characteristics.
9 is a diagram illustrating an embodiment of a method for detecting movement of an object 10 using the movement detecting device 100. Referring to FIG. 9, the movement detection device 100 may receive light through the light incidence unit 110 (S1100 ). The above-described matters through FIG. 4 may be applied to step S1100.
The movement detection device 100 may acquire a movement state of the object 10 based on a change in characteristics of light sensed through the movement detection unit 120 (S1200). The items described above through FIGS. 5 to 8 may be applied to step S1200.
The movement detection device 100 may acquire an image of the object 10 by controlling the image sensing unit 130 based on the movement state of the object 10 (S1300).
When the movement state of the object 10 satisfies a predetermined condition, the movement detection device 100 may control the image sensing unit 130 to obtain an image of the object 10. Accordingly, the movement sensing device 100 may effectively acquire an image of the object 10 according to the moving state of the object 10. The movement detection device 100 can improve the processing speed of an operation for obtaining an image of the moving object 10, save power required for unnecessary calculations, and the resolution of the image of the moving object 10 is You can keep it in high quality.
For example, when movement of the object 10 is detected, the movement detection device 100 may operate the image sensing unit 130 to obtain an image. Accordingly, the movement detection device 100 may acquire an image only when the object 10 moves.
For another example, when the moving speed of the object 10 is greater than or equal to a predetermined speed value, the movement sensing device 100 may operate the image sensing unit 130 to obtain an image. Accordingly, the movement detection apparatus 100 may acquire an image only for the object 10 moving at high speed.
For another example, when the number of moving objects 10 is greater than or equal to a predetermined number, the movement sensing device 100 may operate the image sensing unit 130 to obtain an image. Accordingly, the movement detection device 100 may acquire an image when a plurality of objects 10 move.
For another example, when the movement of the object 10 stops, the movement detection device 100 may operate the image sensing unit 130 to obtain an image. Accordingly, the movement detection apparatus 100 may acquire an image only for the stationary object 10.
10 is a diagram illustrating another embodiment of a method for detecting movement of an object 10 using the movement detecting device 100. Referring to FIG. 10, the movement detection device 100 may receive light through the light incidence unit 110 (S1100 ). The above-described matters through FIG. 4 may be applied to step S1100.
The movement detection device 100 may acquire a movement state of the object 10 based on a change in characteristics of light sensed through the movement detection unit 120 (S1200). The items described above through FIGS. 5 to 8 may be applied to step S1200.
The movement detection device 100 may set the region of interest based on the movement state of the object 10 (S1320). The controller 140 may recognize the target area based on receiving a signal through the lens array and the optical sensor. The target area may be a space having a volume, or may be a flat surface.
Positions of individual lenses constituting the lens array may correspond to a point in the target area. Alternatively, the optical sensor may include a plurality of sensor elements as its constituent units, and the position of the sensor element may correspond to a point in the target area.
The control unit 140 may set one of the target regions as an ROI. The controller 140 may set the region of interest according to a predetermined condition. For example, the region of interest may be a region in which movement of the object 10 is detected. The region of interest may be a region in which the moving speed of the object 10 is greater than or equal to a predetermined speed value. The region of interest may be an area in which the number of moving objects 10 is greater than or equal to a predetermined number. The region of interest may be a region in which movement of the object 10 is not detected.
The movement sensing device 100 may acquire an image of the ROI by controlling the image sensing unit 130 (S1340). The movement sensing device 100 may control the image sensing unit 130 to acquire an image only for the region of interest.
The image sensing unit 130 may include a plurality of sensor elements constituting a pixel, and a location of each sensor element may correspond to an area of the target area. The target area detected by the control unit 140 through the movement detection unit 120 and the target area detected by the image sensing unit 130 may be the same or mutually compatible.
Thereafter, the controller 140 may acquire an image through the sensor element corresponding to the region of interest, but may stop obtaining the image of the sensor element corresponding to the region other than the region of interest.
Alternatively, according to an embodiment, the controller 140 may acquire images for all target areas, but may process image only for the ROI. Thus, for example, image processing may be an operation for obtaining a high-resolution image such as correction.
As a result, the image sensing apparatus acquires an image only for the region of interest, thereby reducing power consumption, increasing an operation processing speed, and obtaining a high-resolution image.
11 is a diagram illustrating a change in a processing speed of the movement detection device 100 according to the number of lenses included in the lens array.
Referring to FIG. 11A, a processing speed for detecting movement of an object 10 and a resolution of an image to be acquired may be determined according to the number of lenses per unit area constituting the lens array. Specifically, as the number of lenses per unit area constituting the lens array of the movement detector 120 increases, the resolution of the image may increase. Meanwhile, as the number of lenses per unit area constituting the lens array of the movement detector 120 increases, a processing speed for detecting movement of the object 10 may decrease.
As the number of lenses per unit area constituting the lens array increases, the size of each individual lens may decrease. In this case, the number of optical signals passing through each lens may increase. Accordingly, the size of each pixel of the target region recognized by the controller 140 may be small, and the number of pixels may increase. Accordingly, the resolution of the image can be increased, and the processing speed can be decreased because the number of operations to be processed for motion detection increases.
Referring to FIG. 11B, the image acquisition and processing speed through the image sensing unit 130 may be determined according to the number of lenses per unit area included in the lens array. Specifically, as the number of lenses per unit area constituting the lens array of the movement detector 120 increases, a speed for image acquisition and processing may increase.
As the number of lenses per unit area constituting the lens array increases, the size of each individual lens may decrease. In this case, the controller 140 may recognize the target region based on each lens and the optical sensor, and when the size of each lens decreases, the unit body of the target region may also decrease. Accordingly, the size of the ROI may be reduced. In other words, the size of the region of interest may be determined according to the number of lenses per unit area included in the lens array. Accordingly, the amount of computation for obtaining an image of the region of interest may decrease, and a processing speed for obtaining an image may increase.
The movement detection device 100 considers an increase or decrease in the processing speed for detecting the movement of the object 10 and the processing speed for acquiring an image according to the number of lenses per unit area constituting the lens array, and adjusts the overall optimal processing speed. The number of lenses per unit area to be expressed can be determined.
In the above, the configuration and features of the present invention have been described based on the embodiments according to the present invention, but the present invention is not limited thereto, and it is understood that various changes or modifications can be made within the spirit and scope of the present invention. It will be apparent to those skilled in the art, and therefore, such changes or modifications are found to belong to the appended claims.

Claims (13)

A light incident part to which light is incident;
A movement sensing unit including a lens array in which a plurality of lenses are arranged according to the number of lenses per predetermined unit area and an optical sensor for detecting a change in characteristics of the light received through the lens array;
An image sensing unit that receives the light and obtains an image; And
Acquiring a moving state of the object based on the change in the characteristics of the light detected through the movement detecting unit,
Based on the movement state of the object, comprising a control unit for obtaining an image of the object by controlling the operation of the image sensing unit,
The control unit sets a region of interest based on a moving state of the object, obtains an image of the region of interest using the image sensing unit,
The size of the ROI is determined according to the number of the lenses per the predetermined unit area,
The number of lenses per predetermined unit area is determined based on a first processing speed for detecting a moving state of the object and a second processing speed for processing the acquired image of the object,
The first processing speed decreases as the number of lenses per predetermined unit area increases, and the second processing speed increases as the number of lenses per predetermined unit area increases.
Movement detection device. The method of claim 1,
Further comprising a spectroscope for separating the traveling path of the light into a first path and a second path,
The movement detection unit receives light through the first path,
The image sensing unit receives light through the second path,
Movement detection device. The method of claim 2,
The spectroscope,
Transmits at least a part of the incident light and reflects another part of the incident light, thereby separating the path of the light
Movement detection device. delete delete The method of claim 1,
The control unit
Obtaining at least one of whether the object moves, a moving speed, and a moving direction based on a change in the characteristics of the light detected by each lens.
Movement detection device. The method of claim 1,
The movement detection unit includes a lens array in which a plurality of lenses are arranged according to a hexagonal pattern.
Movement detection device. delete delete The method of claim 1,
The light incidence unit is capable of adjusting at least one of a direction, a focal length, an aperture, a wide angle, and an incident light amount.
Movement detection device. The method of claim 1,
Further comprising a display for displaying the image of the object
Movement detection device. delete delete

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