WO2004054223A1 - Agencement de detection de mouvement dans une station mobile - Google Patents

Agencement de detection de mouvement dans une station mobile Download PDF

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Publication number
WO2004054223A1
WO2004054223A1 PCT/FI2003/000945 FI0300945W WO2004054223A1 WO 2004054223 A1 WO2004054223 A1 WO 2004054223A1 FI 0300945 W FI0300945 W FI 0300945W WO 2004054223 A1 WO2004054223 A1 WO 2004054223A1
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WO
WIPO (PCT)
Prior art keywords
mobile station
value
threshold value
images
image
Prior art date
Application number
PCT/FI2003/000945
Other languages
English (en)
Inventor
Juhani Kallio
Tapani Salmi
Jani Helin
Tapani HUHDANMÄKI
Mika Kuusisto
Original Assignee
Patria Ailon Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Family has litigation
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Application filed by Patria Ailon Oy filed Critical Patria Ailon Oy
Priority to AU2003285381A priority Critical patent/AU2003285381A1/en
Publication of WO2004054223A1 publication Critical patent/WO2004054223A1/fr

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
    • G08B13/194—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
    • G08B13/196—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
    • G08B13/19602—Image analysis to detect motion of the intruder, e.g. by frame subtraction
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/20—Analysis of motion
    • G06T7/254—Analysis of motion involving subtraction of images
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
    • G08B13/194—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
    • G08B13/196—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
    • G08B13/19602—Image analysis to detect motion of the intruder, e.g. by frame subtraction
    • G08B13/19606—Discriminating between target movement or movement in an area of interest and other non-signicative movements, e.g. target movements induced by camera shake or movements of pets, falling leaves, rotating fan
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
    • G08B13/194—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
    • G08B13/196—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
    • G08B13/19617—Surveillance camera constructional details
    • G08B13/19621—Portable camera
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
    • G08B13/194—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
    • G08B13/196—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
    • G08B13/19678—User interface
    • G08B13/1968—Interfaces for setting up or customising the system
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
    • G08B13/194—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
    • G08B13/196—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
    • G08B13/19678—User interface
    • G08B13/19691—Signalling events for better perception by user, e.g. indicating alarms by making display brighter, adding text, creating a sound

Definitions

  • the invention relates to controlling a mobile station equipped with a camera and especially to arranging motion detection in a mobile station having a camera connected functionally to it.
  • the camera also has a motion detector, and a picture is taken and transmitted when the motion detector detects movement.
  • This type of camera is easy to install to monitor a summer cottage, for instance, and to transmit a picture of a person breaking in to the cottage.
  • motion detection is implemented by infrared technology. Infrared radiation- based detection is quite unreliable; even certain clothing can prevent the detection of movement, if heat output required by the infrared sensor does not radiate through the clothing. Motion detection is also not possible through glass.
  • a mobile station having a camera functionally connected to it monitors motion on the basis of a digital analysis of differences in images produced with the camera.
  • the camera is controlled to define the pixel values of monitored pixels at a minimum of two different time instants to form at least two images.
  • the differences in the images are determined and a motion value is generated on the basis of the differences.
  • the motion value refers generally to a comparison value formed by any method on the basis of differences in the image information of compared images.
  • the motion value is compared with a predefined threshold value and at least one function associated with monitoring is initiated in the mobile station, if the motion value attains the threshold value.
  • the mobile station has a sensitivity control function, on the basis of which the threshold value can be set.
  • the arrangement of the invention provides the advantage that motion detection can be made more reliable than before.
  • the solution of the invention differs completely from earlier devices that combine the functionalities of a camera and mobile station, because in the solution, the camera can repeatedly define image information, from which movement is directly analyzed. This way, no separate detection sensors are needed to trigger the taking of the image. By digital analysis of consecutive images, it is possible to detect movement very accurately within the monitored area.
  • With the mobile station of the invention it is very easy to arrange temporary monitoring, because the monitoring can be set independently and wirelessly with the mobile station that is carried along in any case.
  • With the motion detection of the invention that is based on image information generated by a camera, it is also possible to achieve a shorter reaction time when movement is detected.
  • the detection is not based on thermal radiation, targets not radiating heat are also detected, movement can be monitored even through glass, i.e. the camera can be protected from weather, it is possible to detect if the camera is covered or moved, and errors are not generated by thermal flows (for example when an electrical heater is switched on). Because the detection does not use the curtain technique generally used in infrared sensors, which requires a moving target to pass through a plane or line segment formed by one or more devices, the monitored area does not have sectors or areas, from which motion detection is not possible, and movement is detected as quickly near and far. Sensi- tivity control makes it possible to take into account different environments and the quality of the monitored movement, and consequently further improve the reliability of motion detection in various environments. With sensitivity control, it is possible to set a threshold value so that a certain type of movement does not yet trigger motion detection and a possible alarm, for instance the movement of a pet does not exceed the threshold.
  • the user is shown a sensitivity control window, which shows at least a motion value updated continuously on the basis of the comparison of differences in the monitoring values of consecutive images, and the threshold value.
  • the user is given the option of setting said threshold value and the threshold value is then set on the basis of the input from the user.
  • Figure 1 illustrates a mobile station with a camera connected thereto
  • Figure 2 illustrates a method according to a preferred embodiment of the invention
  • Figure 3 illustrates a method for motion detection according to a preferred embodiment of the invention.
  • FIG. 1 illustrates a mobile station MS having a camera functionality CA connected to it.
  • the mobile station refers generally to a device comprising the means necessary for implementing wireless data transmission.
  • devices of this type are devices capable of data transmission with a PLMN network, such as a GSM/GPRS network or a third-generation network (e.g. 3GPP system).
  • a PLMN network such as a GSM/GPRS network or a third-generation network (e.g. 3GPP system).
  • 3GPP system third-generation network
  • the invention could also be applied to mobile stations equipped with a camera, in which the camera is not integrated to the mobile station, but a camera producing image information is connected by wire or wirelessly to the mobile station.
  • the mobile station MS contains memory MEM, a user interface Ul, input/output means I/O for arranging external data transmission, and a central processing unit CPU comprising one or more processors.
  • the memory MEM has a non-volatile section for storing applications controlling the central processing unit CPU and other necessary information and a volatile section for use in temporary data processing.
  • the mobile station MS illustrated in Figure 2 also comprises a camera CA that can use any known digital imaging technique and convert light into electric charges in an image sensor, define RGB values for pixels and convert them into digital format. It should be noted that the camera CA might be capable of recording both still images and video images.
  • the central processing unit CPU performs the processing, such as compression, and storage into the memory MEM of digital image information.
  • the mobile station MS runs a monitoring application MA that detects movement in the area monitored by the camera CA on the basis of the image information received from the camera CA and initiates a function, such as alarm, associated with the monitoring application MA.
  • Computer program codes executed in the central processing unit CPU can cause the mobile station MS to run the monitoring application MA, a few embodiments of which are illustrated in Figures 2 and 3.
  • the functions of the monitoring application MA can be distributed into several separate software components that communicate with each other.
  • the computer program can be stored in any memory means, such as the hard disc of a PC or a CD-ROM disc, from which it can be loaded into the memory MEM of a device MS running it.
  • the computer program can also be loaded from the network by using a TCP/IP protocol stack, for instance. It is also possible to use hardware solutions or a combination of hardware and software solutions to implement the means of the invention.
  • FIG. 2 illustrates a preferred method for the arrangement of the monitoring application MA.
  • the monitoring application MA can be activated when the mobile station MS is placed in the correct location for monitoring.
  • the display of the mobile station MS can be utilized to find the correct monitoring area, i.e. the image is updated according to the position of the mobile station MS.
  • This embodiment facilitates targeting in comparison with the prior-art solutions.
  • Monitoring can be started by a timer at a set time or monitoring can be set to start after a time period specified in the settings and it may continue during a set time or until it is stopped.
  • monitoring can also be started or interrupted from another terminal for instance by using a short message SMS (short message service).
  • SMS short message service
  • the camera CA is controlled 201 to produce images at specified intervals, i.e. to define the pixel values of the pixels set for monitoring and to transmit them in digital format for the monitoring application MA to process.
  • the camera CA is preferably controlled to use only part of the pixels used in a typical image.
  • the image can be smaller or the number of pixels in the images can be rastered to be smaller, whereby the image area does not decrease.
  • the monitoring application limits the number of compared pixels. This embodiment limiting the number of pixels makes it possible to limit the need for processing capacity and thus also the consumption of battery capacity, which is important in mobile stations. Motion detection also becomes faster when only part of the available pixels is compared. Images are captured using the frame rate set in the mobile station MS.
  • the frame rate can preferably be selected in the settings of the monitoring application MA, for instance from the three alternatives: 0.5, 1 and 10 seconds.
  • a sufficient frame rate is determined for instance on the basis of the speed of the monitored movement.
  • the user Before activating the monitoring application MA, the user can test the adequacy of the selected frame rate and set it to suit the context.
  • the differences in consecutive images are defined 203, and on the basis of the differences, a motion value is generated 204 to illustrate the magnitude of the change between images.
  • the differences in the images can be derived directly from uncompressed image information (pixel values) received from the camera CA, or from compressed image information.
  • the motion value is compared 205 with a predefined threshold value to check whether the motion value attains the threshold value.
  • step 202 If the motion value does not attain 205 the threshold value, monitoring is continued and the routine moves to step 202 to wait for the pixel values of the next image that can be compared with the earlier image in step 203. If on the basis of the comparison 205, the motion value attains the threshold value, at least one function associated with monitoring is started 206 in the mobile station MS. In step 206, one or more of the functions described in the following can be performed. [0014] On the basis of the movement, the camera CA can be controlled to take a final image, for which a typically higher number of pixels is used than for just motion detection.
  • the pixel values of pixels according to the image size and quality selected in the settings are preferably received from the camera CA and the image is typically compressed to JPEG format, for example.
  • images can be taken according to the settings. If the mobile station MS is arranged to record images frequently enough, several images are available on the cause of the movement, and a moving image can be generated.
  • the pixel values defined for monitoring are used (the image is stored and/or transmitted), whereby the image is even more up-to-date.
  • the captured image can in step 206 be stored into the memory MEM of the mobile station MS.
  • a certain limit for the number of stored images can be defined in the settings or images can be stored until the memory space is full.
  • the captured image can be transmitted to another telecommunications device by using a data transmission service supported by the mobile station MS and the mobile network serving the mobile station MS.
  • the image can be transmitted for instance using an MMS service or by electronic mail.
  • the mobile station MS can be connected to the network and transmit the image immediately after it is taken.
  • a call is set up frorn the mobile station MS to a specific number, to which the image is transmitted.
  • the address, such as the IP address, of the other telecommunications device can be set in the mobile station MS, and the image is then addressed thereto.
  • the image can be transmitted according to the connection settings of the monitoring application MA for instance to another terminal of the user or to a device of the monitoring system.
  • the notification Based on detecting motion and/or taking an image, it is possible to transmit a notification to another telecommunications device. As with transmitting an image, the notification, too, can be transmitted using any service provided by the mobile station MS and the mobile network associated with it. An especially efficient manner is to transmit the notification as a short message SMS, which is transmitted to the specified number immediately. If the number cannot be reached, the short message is stored in the mobile network and transmitted to the number as soon as the terminal identified by the number connects to the network. On the basis of the received notification, the user or an employee of a security company, for instance, very quickly receives information on detected movement in the monitored area.
  • a local alarm can be given, in which case a strong sound alarm can be repeated in the mobile station and/or use other effects available in the mobile station MS, such as blinking the display.
  • the sensitivity of motion detection can be adjusted by changing the threshold value.
  • the user can set a specific threshold value or select one of the preset defaults. There may be several default values, and they can be set so as to make motion detection sufficiently sensitive.
  • the user interface Ul can display a sensitivity control window, which shows the measured motion value and the set threshold value in real time. On the basis of this sensitivity control window, the user can easily set a correct motion detection level, i.e. threshold value, for different spaces and situations. For instance, the flickering of fluorescent lamps causes changes comparable to motion in the image information, so the threshold value must be high enough not to cause erroneous motion detection due to such noise.
  • the window can display not only the current motion value but also the minimum and maximum values during the monitored time as bars and numerical values to further facilitate the setting of the correct threshold value.
  • the values can be scaled for instance within 0 to 100 for ease of use.
  • One alternative to implement the sensitivity control window is to draw a time-wise descriptor showing the motion value.
  • the control of sensitivity can also be done automatically in accordance with an embodiment by defining a sufficient threshold value on the basis of the motion value determined during the control time. This embodiment further facilitates the use of the device.
  • the threshold value is preferably adjusted before the start of monitoring so as to make sure that the threshold value is sufficient.
  • the threshold value can then be set in such a manner for example that the movement of a pet does not trigger the execution of step 206.
  • the monitoring application MA After the user has set the threshold value (in step 201 ), the monitoring application MA preferably waits until a predefined delay has elapsed before starting to monitor and controlling the camera to take images.
  • Several threshold preselection alternatives can also be set for the monitoring application MA, such as sensitive, normal, rough. The user can di- rectly select from the preselection, which makes it yet easier to start to use the monitoring application MA.
  • the mobile station MS preferably also has a darkness function that observes the effect of brightness.
  • a brightness value representing the brightness of the image which is used when deciding on the light sensitivity setting, such as day or night setting, for the camera CA.
  • the brightness value can be calculated as an average of the RGB values of the pixels in the image area. Three degrees of brightness, dark, normal and bright, may for instance be defined for the sensitivity setting of the camera CA, with the middle one serving as the hysteresis area.
  • the camera CA is set in the night setting, when the brightness value is within the dark area for a predefined time, and back to day setting, when the degree of brightness is within the bright area for a predefined time. This way, the mobile station can also control the camera CA during monitoring on the basis of the image information.
  • the mobile station MS maintains historical information, a log, on detections during a monitoring period. Time instants when movement has been detected, and other information, such as the maximum and minimum motion values, can be stored in the log.
  • Figure 3 illustrates a motion detection method that can also be applied to the monitoring application illustrated above in Figure 2.
  • pixel value pairs An;Bn and An+1 ;Bn+1 of the new image called image B, and a previous image, image A
  • n and n+1 show consecutive pixels, so pixel value pairs An;Bn and An+1 ;Bn+1 show the same consecutive pixels of two consecutive images.
  • the differences in the pixel value pairs are determined 303, after which it is checked 304, whether the pixel value pairs contain a difference that exceeds a first threshold value.
  • the differences in the pixel value pairs can be summed and the summed value compared with the first threshold value.
  • the difference found in the pixel pairs is compared with the first threshold value one pixel pair at a time, and both pixel pairs must have a difference exceeding the first threshold value to be able to move on from step 304 to step 305. A discrepancy in a single pixel can be ignored in this embodiment.
  • the first threshold value is preferably set as default to the monitoring application MA in such a manner that the difference in the pixels needs to be sufficiently large.
  • step 306 it is checked, whether all pixel value pairs to be monitored have been processed. If all pixel values have not been processed, the routine returns to step 302 to define the next pixel value pairs (An+1 ;Bn+1 and An+2;Bn+2).
  • the final counter value is obtained, which represents the amount of detected movement in the image pair. It is then possible to move to step 307, in which the final counter value is processed.
  • the counter value is processed to provide the desired sensitivity with respect to the amount of movement.
  • a mathematical weighting function can be used, or a weighted value corresponding to the counter reading can be fetched from a stored weighting table. With weighting, it is possible to emphasize a change caused by a small movement in a value representing the amount of movement (motion value). One way is to apply a logarithmic curve.
  • a calibration window depicting motion can be shown to the user, whereby a counter value processed to improve clearness can be scaled within 0 to 100, for instance (within which range the threshold value of the motion value is also set).
  • the processed counter value is checked 308 to see whether it attains a preset second threshold value. If the processed counter value does not exceed the second threshold value, no essential movement has taken place between the examined consecutive images, in which case the counter is set to zero, and the routine can move to process the pixel values of a new received image in step 301. If the processed counter value attains the second threshold value, the function associated with monitoring and already illustrated above in Figure 2 is started 309.
  • step 307 is not necessary, and it is possible to directly compare the obtained counter value with the set second threshold value in step 308.
  • the processed counter value corresponds to the motion value of Figure 2
  • the second threshold value used in step 308 corresponds to the threshold value for motion detection used in step 205 of Figure 2.
  • the motion value is determined on the basis of the differences in the pixel value pairs (the counter is incremented and the obtained counter value is processed).
  • This method provides the advantage that it is possible to implement a sufficiently reliable and quickly reacting motion detection in devices with a limited processing capacity.
  • the number of pixel values monitored for motion detection can be adapted according to the available processing capacity, including also the battery capacity.
  • the motion detection method of Figure 3 used pixel pairs for comparison; in the comparison, it is possible to use any combination of adjacent pixels or to compare individual pixels directly. By comparing pixel pairs, it is, however, possible to filter random pixel noise.
  • the monitoring application MA monitors movement, and if an essential change takes place in the movement, a function associated with monitoring is activated.
  • This embodiment can be implemented utilizing the embodiments already described in connection with Figures 2 and 3, because a reduction in movement can equally well be detected on the basis of the differences in the images. When the difference exceeds the threshold value, the movement is considered to have reduced or stopped, and for instance a notification is transmitted to another telecommunications device.
  • the monitoring application MA of the mobile station MS can also notify that no movement has been detected.
  • MA is then preferably set to monitor movement during a period of time selected by the user, and if no movement is detected, MA transmits for instance a notification to another telecommunications device.
  • the user can set his or her mobile station MS to monitor the garage at 11 p.m., after which the mobile station MS transmits a short message SMS on any detected movement to a second mobile station of the user.
  • the mobile station MS can be positioned towards the door of a hotel room and to trigger a loud alarm, if there is movement at the door.
  • the mobile station MS can be left home in a suitable place when leaving home.
  • the monitoring application MA of the mobile station MS can be activated with a short message, after which the mobile station transmits an image, if motion is detected.
  • Other exemplary situations to which the solution can be applied are access control and nature watch.
  • user profiles with suitable threshold values, for instance, can be defined for these various situations. The user can select directly on the basis of the context a user profile, the settings of which are set when the monitoring of the monitoring application MA is started.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Human Computer Interaction (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Alarm Systems (AREA)
  • Closed-Circuit Television Systems (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Studio Devices (AREA)

Abstract

La présente invention concerne l'agencement de détection de mouvement dans une station mobile possédant une caméra connectée de manière opérationnelle à celle-ci. Cette caméra est commandée de façon à définir des valeurs de pixel des pixels surveillés à un minimum de deux instants de manière à former au moins deux images. Des différences dans ces images sont définies à partir des différences présentes dans ces images, une valeur de mouvement est générée. Cette valeur de mouvement se réfère généralement à une valeur de comparaison formée par un procédé quelconque fondé sur des différences dans des informations image d'images comparées. La valeur de mouvement est comparée avec une valeur de seuil prédéfinie et la station mobile lance au moins une fonction associées à la surveillance si cette valeur de mouvement atteint cette valeur de seuil.
PCT/FI2003/000945 2002-12-12 2003-12-11 Agencement de detection de mouvement dans une station mobile WO2004054223A1 (fr)

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Application Number Priority Date Filing Date Title
AU2003285381A AU2003285381A1 (en) 2002-12-12 2003-12-11 Arranging motion detection in mobile station

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20022193A FI115277B (fi) 2002-12-12 2002-12-12 Liikkeentunnistuksen järjestäminen matkaviestimessä
FI20022193 2002-12-12

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GB2442512A (en) * 2006-09-09 2008-04-09 David Hostettler Wain Motion detector using video frame differences with noise filtering and edge change accentuation
WO2010020625A1 (fr) * 2008-08-20 2010-02-25 European Aeronautic Defence And Space Company - Eads France Procédé et un dispositif de commande, à distance, d'une caméra embarquée dans une station mobile
EP2273790A1 (fr) * 2008-04-14 2011-01-12 ZTE Corporation Procédé et terminal de surveillance capables d adopter différentes précisions de surveillance
US20110134329A1 (en) * 2009-12-04 2011-06-09 Chao-Ho Chen Stabilization method for vibrating video frames
US8233094B2 (en) 2007-05-24 2012-07-31 Aptina Imaging Corporation Methods, systems and apparatuses for motion detection using auto-focus statistics
ITMI20131793A1 (it) * 2013-10-28 2015-04-29 Omnilab S R L Monitoring system for electronic equipment
WO2015063671A1 (fr) * 2013-10-28 2015-05-07 Omnilab S.R.L. Système de surveillance pour équipement électronique

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US8233094B2 (en) 2007-05-24 2012-07-31 Aptina Imaging Corporation Methods, systems and apparatuses for motion detection using auto-focus statistics
EP2273790A1 (fr) * 2008-04-14 2011-01-12 ZTE Corporation Procédé et terminal de surveillance capables d adopter différentes précisions de surveillance
EP2273790A4 (fr) * 2008-04-14 2012-08-01 Zte Corp Procédé et terminal de surveillance capables d adopter différentes précisions de surveillance
WO2010020625A1 (fr) * 2008-08-20 2010-02-25 European Aeronautic Defence And Space Company - Eads France Procédé et un dispositif de commande, à distance, d'une caméra embarquée dans une station mobile
FR2935214A1 (fr) * 2008-08-20 2010-02-26 Eads Europ Aeronautic Defence Procede et un dispositif de commande, a distance, d'une camera embarquee dans une station mobile
CN102124491A (zh) * 2008-08-20 2011-07-13 欧洲航空防务和航天公司 在移动站远程控制装载的摄像机的方法及设备
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ITMI20131793A1 (it) * 2013-10-28 2015-04-29 Omnilab S R L Monitoring system for electronic equipment
WO2015063671A1 (fr) * 2013-10-28 2015-05-07 Omnilab S.R.L. Système de surveillance pour équipement électronique

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FI20022193A (fi) 2004-06-13
FI20022193A0 (fi) 2002-12-12
FI115277B (fi) 2005-03-31

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