CN107589842B - Composite optical device - Google Patents
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- CN107589842B CN107589842B CN201710794895.4A CN201710794895A CN107589842B CN 107589842 B CN107589842 B CN 107589842B CN 201710794895 A CN201710794895 A CN 201710794895A CN 107589842 B CN107589842 B CN 107589842B
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Abstract
The invention relates to a composite optical device, comprising: a light emitting element adapted to provide a beam of invisible light; an image sensor, suitable for detecting the invisible light beam, in order to produce a first image signal; a light sensor, suitable for detecting a visible light beam to provide a second image signal; and a processing unit, suitable for processing the first image signal and outputting a first command signal, and suitable for processing the second image signal and outputting a second command signal; wherein, the image sensor, the optical sensor and the processing unit are at least arranged on a substrate, so that the image sensor, the optical sensor and the processing unit are integrated into a single module; therefore, the data volume of the first command signal output by the processing unit is smaller than that of the first video signal, and the data volume of the second command signal output by the processing unit is smaller than that of the second video signal.
Description
The present application is a divisional application of the application with application number 201210492367.0 entitled "gesture recognition device and composite optical device" filed on 27/11/2012.
Technical Field
The present invention relates to a recognition device and an optical device, and more particularly, to a gesture recognition device and a composite optical device.
Background
The existing selection methods for phone numbers or application menus on smart phones, handheld devices or display devices usually perform direct touch selection and confirmation of objects according to patterns displayed on a touch screen, or perform selection or input by using an input device.
For example, on a desktop or tablet computer, selection and validation is performed based on a keyboard, mouse, or touch pad. In the current general mobile phone, a proximity sensor (proximity sensor) is used for non-contact sensing, and if the mobile phone approaches the head to answer a call, the screen of the mobile phone is closed. However, the conventional proximity sensing device, the ambient light detecting device and the gesture recognizing device are usually formed into modules and then installed in an electronic device (such as a mobile phone), so that the overall size cannot be effectively reduced.
Disclosure of Invention
The present invention is directed to overcome the disadvantages and drawbacks of the prior art, and to provide a gesture recognition apparatus, which reduces the processing time of an external processor and reduces the input/output (IO) signal conversion, thereby saving power consumption.
Another objective of the present invention is to provide a composite optical device, which integrates a plurality of optical sensing elements into a module, and has the advantages of small size and a composite optical sensing mechanism.
Other objects and advantages of the present invention will be further understood from the technical features disclosed in the present invention.
To achieve one or a part of or all of the above or other objects, an embodiment of the invention provides a gesture recognition apparatus, which includes a substrate, a light emitting device, an image sensor, and a processing unit. The light emitting device is suitable for providing a light beam according to a first frequency signal. The image sensor is arranged on the substrate and is suitable for receiving the light beam of the light-emitting element reflected by an object when the object moves according to a second frequency signal so as to generate an object image. The processing unit is arranged on the substrate and is suitable for identifying the object image sensed by the image sensor and providing a command signal. The first clock signal and the second clock signal have a specific periodic correlation.
In an embodiment of the invention, the image sensor is adapted to provide a synchronization signal to make the first clock signal and the second clock signal have a specific periodic correlation.
In an embodiment of the invention, the light emitting element is disposed on the substrate.
In an embodiment of the present invention, the first clock signal and the second clock signal belong to the same periodic frequency. In an embodiment of the present invention, the second clock signal is an integer multiple of the first clock signal.
Another embodiment of the present invention provides a composite optical device, which includes a light emitting element, an image sensor, a light sensor and a processing unit. The light emitting element is adapted to provide a beam of invisible light. The image sensor is suitable for receiving invisible light beams provided by the light-emitting element when an object moves or approaches to generate a first image signal. The light sensor is suitable for detecting a visible light beam to provide a second image signal. The processing unit is suitable for processing the first image signal or the second image signal and outputting a first command signal or a second command signal respectively.
In an embodiment of the present invention, the first command signal includes a gesture command signal or a proximity sensing signal.
In an embodiment of the invention, the second command signal includes an ambient light sensing signal.
In an embodiment of the invention, at least two of the light emitting device, the image sensor, the light sensor and the processing unit are disposed on a substrate.
In an embodiment of the invention, the image sensor is adapted to provide a synchronization signal, so that an exposure frequency signal of the image sensor and an on frequency signal of the light emitting device have a specific periodic correlation.
In another embodiment of the present invention, a composite optical device is provided, which includes a light emitting element, an invisible light sensor, an image sensor and a processing unit. The light emitting element is adapted to provide a beam of invisible light. The invisible light sensor is suitable for receiving an invisible light beam provided by the light-emitting element when an object approaches to generate a first image signal. The image sensor is suitable for receiving the invisible light beam provided by the light-emitting element reflected when the object moves so as to generate a second image signal. The processing unit is suitable for processing the first image signal or the second image signal and outputting a first command signal or a second command signal respectively.
In an embodiment of the invention, the processing unit is adapted to provide a start signal according to the first command signal to start an exposure frequency signal of the image sensor.
In an embodiment of the invention, an exposure frequency signal of the image sensor and an on frequency signal of the light emitting device have a specific periodic correlation.
In one embodiment of the present invention, the first command signal includes a proximity sensing signal.
In one embodiment of the present invention, the second command signal includes a gesture command signal.
In an embodiment of the invention, the composite optical device further includes a visible light sensor adapted to detect a visible light beam to provide a third image signal. In an embodiment of the invention, the processing unit is adapted to process the third image signal and output a third command signal. In an embodiment of the invention, the third command signal includes an ambient light sensing signal.
In an embodiment of the invention, at least two of the light emitting device, the image sensor, the invisible light sensor and the processing unit are disposed on a substrate.
Based on the above, the gesture recognition device and the composite optical device of the present invention have at least the following advantages. Because at least two elements of the gesture recognition device and the composite optical device are integrated in the same module, corresponding control commands can be directly output, the processing time of an external processor can be reduced, the conversion of input/output (IO) signals can be reduced, and the power consumption can be saved. In addition, the gesture recognition device and the composite optical device of the invention can effectively reduce the volume and the size of the module by adopting the structure.
In order to make the aforementioned and other features and advantages of the invention more comprehensible, embodiments accompanied with figures are described in detail below.
Drawings
FIG. 1A is a schematic diagram of a gesture recognition apparatus according to an embodiment of the present invention;
FIG. 1B is a schematic diagram illustrating the control of the frequencies of the image sensor and the light-emitting device of FIG. 1A;
FIG. 2 is a schematic diagram of a compound optical device according to another embodiment of the present invention;
FIG. 3 is a schematic diagram of a compound optical device according to yet another embodiment of the present invention;
fig. 4 is a schematic diagram of a composite optical device according to another embodiment of the invention.
Description of the symbols in the drawings
100 gesture recognition device
110. 250, 350 base plate
120. 210, 310 light emitting element
130 image sensor
140. 240, 340 processing unit
TL1 first frequency signal
L1 light Beam
TL2 second frequency signal
200. 300, 400 composite optical device
220. 330 image sensor
230 light sensor
320 invisible light sensor
410 visible light sensor
L1 invisible light beam
IM1 first image signal
C1 first Command Signal
L2 visible light Beam
IM2 second video Signal
SYN1 synchronous signal
IM21 first image signal
IM22 second video Signal
C21 first Command Signal
C22 second Command Signal
GS1 gesture detection unit
C32 third Command Signal
IM3 third video Signal
Detailed Description
The foregoing and other technical matters, features and effects of the present invention will be apparent from the following detailed description of a preferred embodiment, which is to be read in connection with the accompanying drawings. Directional terms as referred to in the following examples, for example: up, down, left, right, front or rear, etc., are referred to only in the direction of the attached drawings. Accordingly, the directional terminology is used for purposes of illustration and is in no way limiting.
Fig. 1A is a schematic diagram of a gesture recognition apparatus according to an embodiment of the invention, and fig. 1B is a schematic diagram illustrating frequencies of the image sensor and the light emitting element of fig. 1A respectively. Referring to fig. 1A, the gesture recognition apparatus 100 of the present embodiment includes a substrate 110, a light emitting device 120, an image sensor 130, and a processing unit 140. The light emitting device 120 is disposed on the substrate 110 and adapted to provide a light beam L1 according to a first frequency signal TL 1. In the present embodiment, the light emitting element 120 may be a light emitting diode, and in order to enable the gesture recognition apparatus 100 to have a better sensing effect and a faster recognition rate, the light emitting element 120 may be a light emitting diode capable of providing invisible light, wherein the light beam L1 may be infrared light or ultraviolet light, and the present embodiment takes infrared light as an example, but not limited thereto, which may be slightly adjusted according to the needs of the user. The substrate 110 may be a general rigid circuit board, a flexible circuit board or a lead frame, and the light emitting device 120 may be disposed on the substrate 110 by a Surface Mount Technology (SMT) method, a wire bonding method or other suitable methods.
Referring to fig. 1A, the image sensor 130 is disposed on the substrate 110 and adapted to receive a light beam L1 of the light-emitting device 120 reflected by an object (e.g., a hand) moving according to a second frequency signal TL2 to generate an object image. Specifically, the image sensor 130 may be determined according to the wavelength range provided by the light emitting element 120, that is, if the light emitting element 120 is an infrared light emitting diode, the image sensor 130 uses an infrared image sensor. In one embodiment, the light emitting device 120 may also be a visible light wavelength, and the image sensor 130 may be an image sensor capable of detecting visible light wavelength. In the present embodiment, the image sensor 130 may be a CMOS image sensor or a CCD image sensor, wherein the present embodiment takes the CMOS image sensor as an implementation example.
It should be noted that the first clock signal TL1 and the second clock signal TL2 have a specific periodic correlation, as shown in fig. 1B. For example, the second frequency signal TL2 may be an integer multiple of the first frequency signal TL1, that is, the light emitting time of the light emitting device 120 may be turned on once per unit time, and the exposure time of the image sensor 130 may be twice per unit time, so that the image sensor 130 can obtain one image with light and another image without light at different times, respectively, wherein the image with light and the image without light are processed by the processing unit 140, so as to filter the background noise, and obtain a better gesture recognition performance. In an embodiment, the first clock signal TL1 and the second clock signal TL2 may belong to the same periodic frequency, that is, the image sensor 130 may capture only the bright image, and the processing unit 140 may process only the bright image to directly obtain the gesture recognition information. Particularly, the image sensor 130 may be adapted to provide a synchronization signal SYN1 to the light emitting device 120 to synchronize the first frequency signal TL1 and the second frequency signal TL2 having a specific periodic correlation, so as to not only prevent the light emitting device 120 from being turned on at any time and wasting power, but also enable the image sensor 130 to accurately sense the illuminated image.
Referring to fig. 1A, the processing unit 140 is disposed on the substrate 110 and adapted to recognize the object image sensed by the image sensor 130 to provide a command signal C1. Specifically, the processing unit 140 may be a Digital Signal Processor (DSP), wherein the processing unit 140 may receive and process the object image sensed by the image sensor 130 to determine the information of the object movement (e.g., an upward gesture, a downward gesture, a leftward gesture, a rightward gesture, a forward gesture, a backward gesture, or a rotation gesture), so as to output a corresponding control command C1 to an electronic device (not shown) to control the motion of the electronic device.
It should be noted that, since the image sensor 130 and the processing unit 140 of the present embodiment can be integrated into the same module (for example, both are disposed on the substrate 110), the control command C1 with the corresponding gesture can be directly output, so as to reduce the processing time of the external processor, and reduce the conversion of input/output (IO) signals, thereby saving power consumption. For example, if the whole image transmitted by the image sensor 130 is a VGA image (e.g., 640X480 Bytes), the output data amount is 640X480Bytes, however, the processing unit 140 of the present embodiment can directly process the whole image and then output the control command C1, wherein the data amount of the output control command C1 is only 1byte, in other words, the architecture of the present embodiment can reduce the IO power by at least 30 ten thousand times, and also reduce the number of IO devices, thereby effectively reducing the size and size of the module.
Fig. 2 is a schematic diagram of a composite optical device according to another embodiment of the invention. Referring to fig. 2, the composite optical device 200 of the present embodiment includes a light emitting element 210, an image sensor 220, a light sensor 230, and a processing unit 240. In the present embodiment, the light emitting element 210 employs the above-mentioned light emitting element 120, for example, so that the light emitting element 210 is suitable for providing an invisible light beam L1. In addition, in order to detect the invisible light beam L1 reflected by the object (e.g., hand), the image sensor 220 may be an image sensor capable of detecting invisible light, that is, the image sensor 220 of the present embodiment is adapted to receive the invisible light beam L1 provided by the light emitting device 210 when the object moves or approaches, so as to generate a first image signal IM 1.
Specifically, the image sensor 220 can be used for detecting the gesture determination or used as a proximity sensor. In detail, when an object (e.g., a hand or a face of a user or an object moving through the body) approaches the composite optical device 200, the image sensor 220 detects that the image of the object becomes brighter and bigger, and the composite optical device 200 can utilize the image sensor 220 as a proximity sensor. Of course, in an embodiment, when the composite optical device 200 senses that an object is approaching, the aforementioned gesture detection mode may be switched to, that is, the image captured by the image sensor 220 may be used to perform gesture determination through the processing unit 240 to output a first command signal C1. In the present embodiment, the first command signal C1 can be a gesture command signal or a proximity sensing signal according to the determination of the processing unit 240 and the mode (e.g., gesture determination mode or proximity sensing mode) used by the composite optical device 200.
Referring to fig. 2, the light sensor 230 of the present embodiment is adapted to detect a visible light beam L2 to provide a second image signal IM 2. Specifically, the light sensor 230 is, for example, a conventional ambient light sensor, which may be a single pixel or a plurality of pixels. In detail, when the ambient light changes (e.g., becomes dark or bright), the light sensor 230 detects the intensity of the ambient light and generates the second image signal IM2 to the processing unit 240, and at this time, the processing unit 240 processes the received second image signal IM2 to generate a second command signal C2, i.e., the second command signal C2 is, for example, an ambient light sensing signal.
In addition, the processing unit 240 employs the aforementioned processing unit 140, that is, the processing unit 240 can receive and process the aforementioned first video signal IM1 or the aforementioned second video signal IM2, so as to output the aforementioned first command signal C1 or the aforementioned second command signal C2 to an electronic device (not shown) respectively, so as to control the operation of the electronic device.
In the present embodiment, at least two of the light emitting device 210, the image sensor 220, the light sensor 230 and the processing unit 240 may be disposed on the same substrate 250. Similarly, if the image sensor 230, the optical sensor 230 and the processing unit 240 can be integrated into the same module (e.g., at least two of them are disposed on the same substrate 250), the control command C1 with corresponding gestures or the control command C2 with proximity sensing can be directly and respectively output, so as to reduce the processing time of the external processor, and reduce the conversion of input/output (IO) signals, thereby saving power consumption. Similarly, if the whole image transmitted by the image sensor 220 is a VGA image (e.g., 640X480 Bytes), the output data amount is 640X480Bytes, however, the processing unit 240 of the present embodiment can directly process the whole image and then output the control command C1 or C2, wherein the data amount of the output control commands C1 and C2 is only 1byte, in other words, the architecture of the present embodiment can reduce the IO power by at least 30 ten thousand times, and also reduce the number of IO devices, thereby effectively reducing the size and size of the module.
It should be noted that the image sensor 220 of the present embodiment can also provide a synchronization signal SYN1 to the light emitting device 210, so as to avoid wasting power when the light emitting device 210 is in an on state at any time, and further, the image sensor 220 can more accurately sense the illuminated image.
Fig. 3 is a schematic diagram of a composite optical device according to another embodiment of the invention. Referring to fig. 3, the composite optical device 300 of the present embodiment is similar to the composite optical device 200, and the difference therebetween is: the composite optical device 300 of the present embodiment utilizes two different types of sensors to perform gesture determination and proximity sensing respectively. In detail, the composite optical device 300 of the present embodiment includes a light emitting element 310, an invisible light sensor 320, an image sensor 330, and a processing unit 340. The light emitting element 310 is, for example, the light emitting elements 120 and 210, and thus, the description thereof is omitted. In addition, the invisible light sensor 320 is adapted to receive the invisible light beam L1 provided by the reflective light emitting device 310 when an object (e.g., a user's hand) approaches to generate a first video signal IM21, wherein the processing unit 340 processes the first video signal IM21 and determines whether there is an object approaching to generate a first command signal C21. That is, in the composite optical device 300, the light emitting element 310 and the invisible light sensor 320 may form a proximity sensing unit PS1 for determining whether an object is close to the light emitting element.
In addition, the image sensor 330 may employ the aforementioned image sensor 130, so that the image sensor 330 can receive the invisible light beam L1 provided by the light emitting device 310 reflected by the object moving to generate a second image signal IM22, wherein the processing unit 340 processes the second image signal IM22 and determines whether the object performs a gesture trajectory to generate a second command signal C22. That is, in the compound optical device 300, the light emitting element 310 and the image sensor 330 may form a gesture detection unit GS1 for determining whether the moving track of the object is a gesture motion. In this embodiment, the processing unit 340 employs the aforementioned processing units 140 and 240, for example, and is not described herein again. It should be noted that the processing unit 340 can also provide an activation signal according to the first command signal C21 to activate an exposure frequency signal of the image sensor 330. In brief, to save the power consumed by the composite optical device 300, whether an object is approaching can be detected by the light emitting element 310 and the invisible light sensor 320, and if an object is approaching, the processing unit 340 can activate the image sensor 330 for gesture sensing. Specifically, the proximity sensing unit PS1 and the gesture detecting unit GS1 may share the same light emitting device 310.
Similarly, an exposure frequency signal of the image sensor 340 and an on frequency signal of the light emitting device 310 may have a specific periodic correlation, which has the above advantages and will not be described herein again. Similarly, in the composite optical device 300, at least two of the light emitting elements 310, the image sensor 330, the invisible light sensor 320 and the processing unit 340 are disposed on a substrate 350, so as to effectively reduce the number of IO power and IO elements and reduce the size and dimension of the module, for the reasons described above, which are not repeated herein.
Fig. 4 is a schematic diagram of a composite optical device according to another embodiment of the invention. Referring to fig. 3 and fig. 4, the composite optical device 400 of the present embodiment is similar to the composite optical device 300, and the difference therebetween lies in: the hybrid optical device 400 of the embodiment further includes a visible light sensor 410, the visible light sensor 410 is adapted to detect a visible light beam to provide a third video signal IM3, wherein the processing unit 340 is adapted to process the third video signal IM31 and output a third command signal C32. In the present embodiment, the visible light sensor 410 is, for example, the aforementioned light sensor 230, and therefore, the third command signal C32 is the aforementioned ambient light sensing signal, and details thereof can be referred to the aforementioned description, and will not be repeated herein. It should be noted that the processing unit 340 can selectively adjust the operations of the image sensor 330, the invisible light sensor 320 or the light emitting device 310 according to the third command signal C32. For example, since the visible light sensor 410 is mainly used to detect the change of the ambient light, if the ambient light becomes dark, the light intensity of the light emitting element 310 can be adjusted down to save power, or the frame rate (frame rate) of the image sensor 330 or the invisible light sensor 320 can be adjusted down to increase the processing speed of the processing unit 340.
It should be noted that, the optical sensor and the image sensor may also be integrated with a digital signal processing circuit (DSP) to transmit the processed signals to the processing unit, and the processed signals generated by the optical sensor and the image sensor may be the aforementioned image signals or command signals, wherein the processing unit may be a control unit (MCU) or a digital signal processing circuit (DSP), which is described above for illustration only, but the invention is not limited thereto.
Based on the above, the gesture recognition device and the composite optical device of the present invention have at least the following advantages. Because at least two elements of the gesture recognition device and the composite optical device are integrated in the same module, corresponding control commands can be directly output, the processing time of an external processor can be reduced, the conversion of input/output (IO) signals can be reduced, and the power consumption can be saved. In addition, the gesture recognition device and the composite optical device of the invention adopt the structure, so that the composite optical sensing mechanism is provided, and the size and the volume of the module can be effectively reduced.
It should be understood that the above description is only a preferred embodiment of the present invention, and the scope of the present invention should not be limited thereby, and that the invention is intended to cover all the modifications and equivalents of the claims and the contents of the specification. Furthermore, it is not necessary for any embodiment or claim of the invention to address all of the objects, advantages, or features disclosed herein. In addition, the abstract and the title of the invention are provided for assisting the search of patent documents and are not intended to limit the scope of the invention.
Claims (12)
1. A composite optical device, comprising:
a light emitting element adapted to provide a beam of invisible light;
an image sensor, suitable for detecting the invisible light beam, in order to produce a first image signal;
a light sensor, suitable for detecting a visible light beam to provide a second image signal; and
a processing unit, adapted to process the first image signal and output a first command signal, and adapted to process the second image signal and output a second command signal;
the image sensor, the optical sensor and the processing unit are arranged on a substrate, so that the image sensor, the optical sensor and the processing unit are integrated into a single module;
therefore, the data volume of the first command signal output by the processing unit is smaller than that of the first video signal, and the data volume of the second command signal output by the processing unit is smaller than that of the second video signal.
2. The compound optical device as claimed in claim 1, wherein the first command signal comprises a gesture command signal or a proximity sensing signal.
3. The composite optical device of claim 1, wherein the second command signal comprises an ambient light sensing signal.
4. The composite optical device as claimed in claim 1, wherein the image sensor is adapted to provide a synchronization signal such that an exposure frequency signal of the image sensor has a specific periodic correlation with an on frequency signal of the light emitting device.
5. A composite optical device, comprising:
a light emitting element adapted to provide a beam of invisible light;
the invisible light sensor is suitable for detecting the reflected invisible light beam so as to generate a first image signal;
an image sensor, suitable for detecting the reflected invisible light beam, in order to produce a second image signal; and
a processing unit, adapted to process the first image signal and output a first command signal, and adapted to process the second image signal and output a second command signal;
the image sensor, the invisible light sensor and the processing unit are arranged on a substrate, so that the image sensor, the invisible light sensor and the processing unit are integrated into a single module;
therefore, the data volume of the first command signal output by the processing unit is smaller than that of the first video signal, and the data volume of the second command signal output by the processing unit is smaller than that of the second video signal.
6. The composite optical device as claimed in claim 5, wherein the processing unit is adapted to provide an activation signal according to the first command signal to activate an exposure frequency signal of the image sensor.
7. The composite optical device as claimed in claim 5, wherein an exposure frequency signal of the image sensor has a specific periodic correlation with an on frequency signal of the light emitting element.
8. The composite optical device of claim 5, wherein the first command signal comprises a proximity sensing signal.
9. The compound optical device of claim 5, wherein the second command signal comprises a gesture command signal.
10. The composite optical device of claim 5, further comprising:
a visible light sensor, suitable for detecting a visible light beam to provide a third image signal.
11. The composite optical device as claimed in claim 10, wherein the processing unit is adapted to process the third image signal to output a third command signal.
12. The composite optical device of claim 11, wherein the third command signal comprises an ambient light sensing signal.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710794895.4A CN107589842B (en) | 2012-11-27 | 2012-11-27 | Composite optical device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710794895.4A CN107589842B (en) | 2012-11-27 | 2012-11-27 | Composite optical device |
| CN201210492367.0A CN103838362B (en) | 2012-11-27 | 2012-11-27 | Gesture recognition device and combined optical device |
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| CN201210492367.0A Division CN103838362B (en) | 2012-11-27 | 2012-11-27 | Gesture recognition device and combined optical device |
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| CN107589842A CN107589842A (en) | 2018-01-16 |
| CN107589842B true CN107589842B (en) | 2020-06-05 |
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| JP3518923B2 (en) * | 1995-04-04 | 2004-04-12 | オリンパス株式会社 | Automatic image forming equipment for confocal scanning optical microscope |
| US6384397B1 (en) * | 2000-05-10 | 2002-05-07 | National Semiconductor Corporation | Low cost die sized module for imaging application having a lens housing assembly |
| TW445608B (en) * | 2000-05-19 | 2001-07-11 | Siliconware Precision Industries Co Ltd | Semiconductor package and manufacturing method thereof of lead frame without flashing |
| TW466720B (en) * | 2000-05-22 | 2001-12-01 | Siliconware Precision Industries Co Ltd | Semiconductor package with flash-prevention structure and manufacture method |
| CN2465329Y (en) * | 2001-01-22 | 2001-12-12 | 胜开科技股份有限公司 | Iamge sensor |
| CN100451932C (en) * | 2004-02-13 | 2009-01-14 | 原相科技股份有限公司 | Light source control module and method suitable for cursor device |
| CN1798270A (en) * | 2004-12-28 | 2006-07-05 | 原相科技股份有限公司 | Integrated image sensor, and single chip of back end processing module |
| US8908766B2 (en) * | 2005-03-31 | 2014-12-09 | Euclid Discoveries, Llc | Computer method and apparatus for processing image data |
| KR100801087B1 (en) * | 2006-07-05 | 2008-02-11 | 삼성전자주식회사 | System and method for sensing moving body using structured light, mobile robot including the system |
| CN101813972A (en) * | 2009-02-19 | 2010-08-25 | 华硕电脑股份有限公司 | Command control system and method thereof |
| JP2010277252A (en) * | 2009-05-27 | 2010-12-09 | Toshiba Corp | Paper sheet handling apparatus |
| JP5382437B2 (en) * | 2009-08-19 | 2014-01-08 | 東芝ライテック株式会社 | Motion detection device and illumination device |
| GB2483168B (en) * | 2009-10-13 | 2013-06-12 | Pointgrab Ltd | Computer vision gesture based control of a device |
| TWI425182B (en) * | 2010-06-15 | 2014-02-01 | Pixart Imaging Inc | Distance measurement system and method thereof |
| TWI463272B (en) * | 2010-11-30 | 2014-12-01 | Ushio Electric Inc | Light irradiation device |
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| CN107589842A (en) | 2018-01-16 |
| CN103838362B (en) | 2017-10-03 |
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