CN110521212A - Video record and processing system and method - Google Patents
Video record and processing system and method Download PDFInfo
- Publication number
- CN110521212A CN110521212A CN201780088380.0A CN201780088380A CN110521212A CN 110521212 A CN110521212 A CN 110521212A CN 201780088380 A CN201780088380 A CN 201780088380A CN 110521212 A CN110521212 A CN 110521212A
- Authority
- CN
- China
- Prior art keywords
- video
- frame
- display device
- screen
- screen area
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Controls And Circuits For Display Device (AREA)
Abstract
The present embodiments relate to a kind of video record and processing systems and method.In the video record and processing system, camera shooting and On-Screen Identification device carry out video record at the scene to object display device to obtain the recorded video of the screen area positioning identifier comprising the object display device and identify the screen area of the object display device in the recorded video according to the screen area positioning identifier；And screen content alternative, the camera shooting and On-Screen Identification device are connected, for the content in the screen area identified in the recorded video to be substituted for object content to obtain target video as output.Therefore the embodiment of the present invention can realize that display screen region shows different content when different regions are broadcast live.
Description
The invention relates to the technical field of display application, in particular to a video recording and processing system and a video recording and processing method.
In some environments with LED display screens as background, such as football stadiums, etc., LED display screens are mainly used as a carrier of advertisements. In the existing system, live advertisements of an LED display screen are the same as live advertisements such as television live advertisements recorded in the live broadcast mode, and due to product differences in different areas, live advertisements cannot necessarily have an advertising effect in the television live broadcast in different areas. How to replace the on-site screen advertisement with the advertisement in different areas in the live television broadcast in different areas and maximize the benefits of the live broadcast advertisers is a problem to be solved urgently at present.
Disclosure of Invention
Therefore, the invention provides a video recording and processing system and a method thereof, which are used for realizing the display and play of different contents in a target screen area when the video is directly played in different areas.
Specifically, a video recording and processing system provided in an embodiment of the present invention includes: the camera shooting and screen recognition device is used for carrying out video recording on the site where the target display device is located so as to obtain a recorded video containing a screen area positioning identifier of the target display device, and recognizing the screen area of the target display device in the recorded video according to the screen area positioning identifier; and the screen content replacing device is connected with the camera shooting and screen identifying device and is used for replacing the content in the screen area identified in the recorded video into target content so as to obtain a target video signal as output.
In one embodiment of the present invention, the screen region positioning mark is composed of a plurality of light emitting units which are arranged at the edge of the screen region and in the screen region of the target display device, have a preset distribution characteristic and are in a lighting state.
In one embodiment of the present invention, the plurality of light emitting units are a plurality of non-visible point light sources.
In one embodiment of the invention, the target display device comprises a box body and a receiving card connected with the box body, and a plurality of non-visible point light sources are arranged at the edge of a display area and inside the display area of the box body.
In one embodiment of the invention, the screen region location identifier is a picture periodically displayed in the screen region of the target display device and having a specific content feature.
In an embodiment of the present invention, the frame with the specific content feature is a black frame displayed in a periodic black field time of the target display apparatus, and the sampling time of the video recording is set to be within the periodic black field time of the target display apparatus.
In one embodiment of the invention, the frequency of the periodic black field time is equal to the field frequency of the target display device.
In an embodiment of the present invention, the frame with the specific content feature is a display frame of a specific video frame with a preset content feature and a periodic display feature in a plurality of video frames alternately displayed by the target display device, and the sampling time setting of the video recording is located within the display time of the specific video frame.
In one embodiment of the invention, the particular video frame is a monochrome video frame.
In one embodiment of the present invention, the specific video frame is a monochrome video frame generated by the target display device from one designated pixel data in an externally input video frame.
In an embodiment of the present invention, the target display device includes an LED display screen body, the LED display screen body includes a receiving card and a box body connected to the receiving card, and the receiving card includes: the system comprises an image receiving module, an internal specific video frame generating module, a first image driving module, a second image driving module, a multiplexer and a frame display phase and time length adjusting module; the first image driving module is connected with the image receiving module, the second image driving module is connected with the internal specific video frame generating module, the image receiving module is used for receiving a first video frame except the specific video frame in the plurality of video frames, the internal specific video frame generating module is used for synchronously generating the specific video frame under the action of a field synchronization signal of the first video frame, and the multiplexer is connected with the first image driving module and the second image driving module to receive the first video frame and the specific video frame synchronously output by the first image driving module and the second image driving module and alternately output the first video frame and the specific video frame under the control of a frame selection signal generated by the frame display phase and the time and length adjusting module.
In an embodiment of the present invention, the video recording and processing system further includes: the playing output device is used for outputting videos or images to the target display device; and a synchronization device connected to the play output device and the camera and screen recognition device to generate a synchronization signal to synchronize the play output device and the camera and screen recognition device, or connected to the target display device and the camera and screen recognition device to generate a synchronization signal to synchronize the target display device and the camera and screen recognition device.
In addition, the video recording and processing method provided by the embodiment of the invention comprises the following steps: carrying out video recording on the site where a target display device is located and enabling the sampling moment of the video recording to be located in the picture display time with the specific content characteristics and the periodic display characteristics of the target display device so as to obtain a recorded video; identifying the screen area in the recorded video according to the specific content characteristic and the periodic display characteristic of the picture displayed in the picture display time by the screen area of the target display device; and replacing the content in the screen area identified in the recorded video with target content to obtain a target video signal as output.
In an embodiment of the present invention, the picture display time is a periodic black field time of the target display apparatus, the picture displayed by the screen area of the target display apparatus in the picture display time is a black picture, and the sampling time of the video recording is partially within the periodic black field time.
In one embodiment of the invention, the field frequency of the periodic black field time is equal to the field frequency of the target display device.
In an embodiment of the present invention, the frame display time is a display time of a specific video frame having a preset content feature and a periodic display feature among a plurality of video frames alternately displayed by the target display device, and the sampling time of the video recording is only located within the display time of the specific video frame; wherein the particular video frame is a monochrome video frame.
In one embodiment of the present invention, the specific video frame is generated from a specified pixel data in one of the plurality of video frames other than the specific video frame.
Furthermore, another embodiment of the present invention provides a video recording and processing method, including: carrying out video recording on the site where a target display device is located to obtain a recorded video containing a screen area positioning identifier of the target display device; identifying the screen area of the target display device in the recorded video according to the screen area positioning identifier; and replacing the content in the screen area identified in the recorded video with target content to obtain a target video signal as output.
In one embodiment of the present invention, the screen region location indicator is composed of a plurality of non-visible point light sources having a preset distribution characteristic and being in a lighting state, which are disposed at an edge of a screen region and within the screen region of the target display device, or the screen region location indicator is a picture periodically displayed on the screen region of the target display device and having a specific content characteristic.
In one embodiment of the invention, the target video signal output is a television live signal or a webcast signal.
One of the above technical solutions has the following advantages or beneficial effects: the live broadcast method and the live broadcast device can help the live broadcast advertiser to implant different advertisement contents in the screen display area of the display device and guide the different advertisement contents into the live broadcast in different areas when live broadcast is carried out in different areas, so that the value of the advertisement is maximized.
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1A is a schematic diagram of a basic architecture of a video recording and processing system according to an embodiment of the present invention;
FIG. 1B is a block diagram of an embodiment of the video recording and processing system shown in FIG. 1A;
FIG. 2 is a schematic view of the case shown in FIG. 1B with an infrared LED lamp disposed thereon;
FIG. 3 is a schematic diagram illustrating a video recording principle when a black frame displayed in a periodic black field time is used as a screen area positioning identifier according to an embodiment of the present invention;
fig. 4 is a schematic diagram of an architecture for implementing another video recording and processing system according to an embodiment of the present invention;
FIG. 5A is a schematic diagram of one embodiment of the receiver card of FIG. 4;
FIG. 5B is a block diagram of an implementation of the receiving card of FIG. 5A;
FIG. 6 is a timing diagram of the receiving card of FIG. 5B for selectively outputting externally input video frames and internally generated specific video frames;
fig. 7 is a block diagram of a specific implementation of a receiving card according to another embodiment of the present invention.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1A, a video recording and processing system according to an embodiment of the present invention includes: a camera and screen recognition device and a screen content replacement device. The camera shooting and screen recognizing device is used for carrying out video recording on the site where the target display device is located to obtain a recorded video containing a screen area positioning mark of the target display device and recognizing the screen area of the target display device in the recorded video according to the screen area positioning mark. And the screen content replacing device is connected with the camera shooting and screen identifying device and is used for replacing the content in the screen area identified in the recorded video into target content so as to obtain a target video signal as output, for example, the target video signal is output as a television live broadcast signal or a network live broadcast signal.
Referring to fig. 1B, a schematic diagram of an implementation architecture of the video recording and processing system shown in fig. 1A is shown. In fig. 1B, the video recording and processing system 10 includes: a play output device 11, a display controller 12, an LED display screen body 13, a camera and screen recognition device 15 and a screen content replacement device 16.
The play output device 11 is used for outputting played video or images, such as advertisements on a court screen; specifically, the broadcast output device 11 is, for example, a host computer in which broadcast software is installed, and can output the broadcast advertisement content.
The display controller 12 is connected to the broadcast output device 11 by signals, for example, a video input interface thereof is connected to the broadcast output device 11 through a video line (such as DVI, HDMI cable, etc.) for processing (for example, decoding, video splitting, etc.) the broadcast video or image output by the broadcast output device 11 and then transmitting the processed video or image to a receiving card 131 in the LED display screen body 13 through an image transmission channel; in addition, the display controller 12 may further connect to the play output device 11 via a data line through its own communication interface, such as a serial port, a network port or a USB port, so as to receive commands; in the present embodiment, the display controller 12 is, for example, various transmission cards.
The LED display screen body 13 includes at least one receiving card 131 and at least one box 133, and all the boxes 133 are spliced together to define a screen display area (or screen area) of the LED display screen body 13. The receiving card 131 is used for receiving the video or image from the output port of the display controller 12, processing the video or image, and displaying the processed video or image on the box 133. Here, the single housing 133 typically includes a plurality of LED lamp panels, each of which is configured with an LED driving chip and a plurality of LED lamps, such as red, green, and blue LED lamps, as display pixels, controlled by the LED driving chip.
The camera and screen recognition device 15 is used for capturing and collecting the information of the site where the LED display screen body 13 is located so as to record a video and recognize the screen area of the LED display screen body 13.
The screen content replacing device 16 is in signal connection with the image pickup and screen recognition device 15 and is used for performing content replacement on the recognized screen area to obtain a target video signal as an output, for example, the target video signal is output as a live television signal or a live network signal, the screen content replacing device 16 is, for example, an upper computer provided with image processing software, and the content replacement is, for example, to replace the content in the screen area with a required advertisement picture, so that the advertisement content displayed on the site of the LED display screen body 13 can be replaced with advertisements in different areas for live television broadcast in different areas, for example.
In light of the above, in order to complete the position recognition of the screen area of the LED display screen body 13, some information may be output on the LED display screen body 13, and the information has no influence or little influence on the audience of the site where the LED display screen body 13 is located, but can be recognized and located by the camera and screen recognition device 16.
For example, as shown in fig. 2, a plurality of non-visible light point light sources such as infrared LED lamps 1331 which are normally lit or lit at a predetermined frequency are disposed on each box 133 of the LED display screen 133, and in order to improve the accuracy of position recognition, the infrared LED lamps 1331 are disposed in the display area of the box 133 in addition to the infrared LED lamps 1331 disposed at the edge of the display area of the box 133, so that the problem that the box 133 is partially shielded by foreign objects and cannot be accurately positioned can be avoided. Accordingly, the image capturing and screen recognizing apparatus 15 includes, for example: the image processing device includes an image pickup device for recording a live video and sensing infrared signals emitted from the infrared LED lamps 1331 on the box 133, and an image processing device, such as an upper computer with image processing software, for positioning the screen area of the LED display screen body 13 according to the sensed infrared signal distribution characteristics in the recorded video of the image pickup device.
Of course, it should be noted that the infrared LED lamp 1331 is only an example of the screen area positioning mark of the LED display screen body 13, and other light emitting elements capable of auxiliary positioning may be adopted, for example, a circle of normally bright light bars is surrounded on the entire screen edge of the LED display screen body 13, as long as it can output the positioning mark signal for auxiliary positioning of the screen area.
In addition, in other embodiments, the periodic display features of the LED display screen body 13 itself when displaying the screen can also be used to realize the positioning of the screen area without additionally providing a positioning identifier (such as the infrared LED lamp 1331 shown in fig. 2).
Specifically, for example, as shown in fig. 3, a high-speed camera may be disposed in the image pickup and screen recognition device 15 to photograph the LED display panel 13 and the site, and if the field frequency of the LED display panel 13 is 60HZ, a black field time of 60HZ may exist, then the LED display panel 13 may be photographed by using the higher-speed camera, and if the photographed pictures regularly appear black pictures and the frequency of the black pictures is 60HZ, the corresponding black picture area may be considered as the screen area. As shown in fig. 3, the camera completes sampling at the video recording sampling time, the sampled pictures include a recorded live background picture and a display picture of the LED display screen body 13, the background picture is cluttered, the black and white of the picture displayed by the LED display screen body 13 are regular, and the periodically appearing black picture area is identified as a screen area by an image processing device in the image pickup and screen identification device. In addition, as can be seen from fig. 3, the video recording and capturing time of the camera is partially within the period of the black field of the LED display screen body 13.
It should be noted that, in addition to using the picture display periodicity characteristic (such as the black field time periodicity characteristic shown in fig. 3) of the LED display screen body 13 itself to locate the screen area, it is also possible to specifically and periodically display a specific video frame on the LED display screen body 13 and make the video recording sampling time of the camera in the camera and screen recognition device 15 be within the display time of the specific video frame on the LED display screen body 13 and preferably not within the display time of the other video frames displayed in turn with the specific video frame on the LED display screen body 13, and of course, the video recording sampling time may also be partially within the display time of the other video frames as long as it is ensured that the specific video frame has the periodicity display characteristic, and the display time length of the specific video frame here is smaller than the display time length of the other video frames. In addition, a synchronization device 14 is added between the broadcast output device 11 and the camera and screen recognition device 15 to generate a synchronization signal to synchronize the two devices, as shown in fig. 4. It is understood that in other embodiments, the synchronization signal generated by the synchronization device 14 may be provided to the display controller 12 and the camera and screen recognition device 15 instead of being provided to the play output device 11, and the camera and screen recognition device 15 may also be enabled to capture a stable specific video frame.
As for the implementation of the specific periodic display of the specific video frame on the LED display screen body 13, see fig. 5A. Specifically, as shown in fig. 5A, the receiving card 131 of the present embodiment includes: the system comprises an image receiving module, an internal specific video frame generating module, two paths of image driving modules, a multi-path selector and a frame display phase and time length adjusting module; the image receiving module is used for receiving an external input video frame, the internal specific video frame generating module is used for internally generating a specific video frame under the action of a field synchronization signal of the external input video frame, and the two paths of image driving modules are respectively connected with the image receiving module and the internal specific video frame generating module so as to synchronously output the external input video frame and the internally generated specific video frame to the multi-path selector to be alternately output to the outside for displaying, so that the internally generated specific video frame is in a periodic output display characteristic; the frame display phase and time length adjusting module is used for generating a frame selection signal as a control signal of the multiplexer so as to control the display phase and time length of the internally generated specific video frame.
Referring to fig. 5B, a block diagram of an implementation of the receiving card shown in fig. 5A is shown. In fig. 5B, the reception card 131 includes: an image receiving module 1311a, an internal specific video frame generating module 1311b, an image processing module 1312, image driving modules 1314 and 1315, a memory access control module 1316, a frame display phase and time length adjustment module 1317, a multiplexer (Mux)1318, and a parameter module 1319, which are preferably multiple functional modules integrated within the same programmable logic device (e.g., FPGA device).
The image receiving module 1311a is configured to receive data of a video frame (provided by the play output device 11, for example) transmitted by the display controller 12 (see fig. 4) and store the data in a memory, such as an SDRAM (not shown), through the memory access control module 1316.
The internal specific video frame generation module 1311b is configured to locally generate a frame of data according to a command sent from the display controller 12 or a content defined by a local register configuration, and the internally generated specific video frame may be directly transmitted to the image driving module 1315 for use; in the embodiment shown in fig. 5B, the frame rate of the input video is 60HZ, but the invention is not limited thereto, and other frame rates such as 50HZ may be used; the specific video frame is internally generated as a monochrome video frame, e.g., a primary color video frame of red, green, blue, etc., and preferably a highest gray monochrome video frame, for ease of identification.
The image processing module 1312 finishes image processing of an external input video frame under a field sync signal of 60HZ, and specifically, reads original data of the external input video frame from a memory through the memory access control module 1316, then finishes Gamma (Gamma) conversion, gray extraction, and even corrects functions such as luminance or luminance and chrominance correction, and stores the functions into the memory through the memory access control module 1316; the gradation extraction here is, for example, an operation such as a Bit separation, that is, the gradation extraction is typically a manner in which gradation data after correction processing is subjected to a separation operation per Bit to convert the gradation data into a weight which is realized differently for different bits.
A display synchronization signal is configured between the two image driving modules 1314 and 1315 to perform output driving synchronization, the image driving module 1314 is configured to perform output driving on an externally input video frame, and the image driving module 1315 is configured to perform output driving on an internally generated specific video frame. It can be seen that the difference between the two image driving modules 1314 and 1315 lies in the difference between the input sources, the image driving module 1314 needs to read the data of the external input video frame after image processing by the image processing module 1312 from the memory through the memory access control module 1316 and perform output driving, and the image driving module 1315 directly obtains the data of the internally generated specific video frame from the internal specific video frame generating module 1311b to perform output driving.
The frame display phase and duration adjusting module 1317 outputs a frame selection signal according to the parameters issued by the parameter module 1319, selects the outputs of the image driving modules 1314 and 1315, and finally realizes 120HZ video output at the output port of the multiplexer 1318; here, the parameters issued by the parameter module 1319 include, for example, parameters such as a display phase offset and a display duration for internally generating a specific video frame, which are stored in the non-volatile memory. It is understood that the parameter module 1319 is set to facilitate setting/adjusting parameters such as the display phase offset and the display time length of a specific video frame, and the parameter module 1319 may be omitted in some applications, and the display phase offset and the display time length of the specific video frame are preset in the frame display phase and time length adjusting module 1317.
As described above, as shown in fig. 6, an external input video frame (labeled as frame a) and an internal generation specific video frame (labeled as frame B) are respectively output at the two image driving modules 1314 and 1315, and a video frame of 60HZ is selectively output by a frame selection signal to realize a video output of 120 HZ; for example, when the frame selection signal is logic "1", an internally generated specific video frame, that is, frame B, is output, and an externally input video frame, that is, frame a, is output at other times. In fig. 6, VS1 is a display start point of frame B (also one display end point of frame a), and VS2 is a display end point of frame B (also another display start point of frame a). It can also be found from fig. 6: the output display time of frame B is less than the output display time of frame a.
In another embodiment, the specific video frame generated internally may also be changed in real time with the externally input video frame, such as the embodiment shown in fig. 7. Specifically, referring to fig. 7, the receiving card 731 of the present embodiment includes an image receiving module 7311a, an internal specific video frame generating module 7311b, image processing modules 7312 and 7313, image driving modules 7314 and 7315, a memory access control module 7316, a frame display phase and time length adjusting module 7317, a multiplexer (Mux)7318, and a parameter module 7319, which are preferably multiple functional modules integrated in the same programmable logic device.
The image receiving module 7311a is used to receive data of input video frames (provided by the playing output device 11, for example) transmitted by the display controller 12 (see fig. 4) and store the data in a memory, such as an SDRAM (not shown), through the memory access control module 7316.
The internal specific video frame generation module 7311b is configured to synchronously generate a frame data according to the pixel data at the specified position in the external input video frame, for example, a certain specified pixel data, as the internal specific video frame for use, and the data of the internal specific video frame is stored in the memory through the memory access control module 7316; in the embodiment shown in fig. 7, the frame rate of the input video is 60HZ, but the invention is not limited thereto, and other frame rates such as 50HZ may be used; further, the internally generated specific video frame here is typically a monochrome video frame since it is generated from specified pixel data of the externally input video frame, for example, single pixel data, and thus can be changed in real time according to the data of the externally input video frame; and the specified pixel data here may be specified by a control command generated by the play output device 11 or the display controller 12 in fig. 4.
The image processing modules 7312 and 7313 respectively complete image processing of an external input video frame and an internal generation specific video frame under a field sync signal of 60HZ, specifically: the image processing module 7312 reads the original data of the external input video frame from the memory through the memory access control module 7316, then completes the functions of Gamma (Gamma) transformation, gray extraction and even correction such as brightness or brightness correction, and then stores the data into the memory through the memory access control module 7316; the image processing module 7313 reads data of internally generated specific video frames from the memory through the memory access control module 7316 and then performs Gamma (Gamma) conversion, gray extraction, and even correction such as luminance or luminance and chrominance correction, and then stores the data in the memory through the memory access control module 7316. The gradation extraction here is, for example, an operation such as a Bit separation, that is, the gradation extraction is typically a manner in which gradation data after correction processing is subjected to a separation operation per Bit to convert the gradation data into a weight which is realized differently for different bits.
The display synchronization signal is provided between the two image driving blocks 7314, 7315 to perform output driving synchronization, the image driving block 7314 is used to perform output driving for an externally input video frame, and the image driving block 7315 is used to perform output driving for an internally generated specific video frame. The method specifically comprises the following steps: the image driving module 7314 needs to read data of an externally input video frame subjected to image processing by the image processing module 7312 from the memory through the memory access control module 7316 and perform output driving, and the image driving module 7315 needs to read data of an internally generated specific video frame subjected to image processing by the image processing module 7313 from the memory through the memory access control module 7316 and perform output driving.
The frame display phase and duration adjusting module 7317 outputs a frame selection signal according to the parameters sent by the parameter module 7319, selects the outputs of the image driving modules 7314 and 7315, and finally realizes 120HZ video output at the output port of the multiplexer 7318; here, the parameters issued by the parameter module 7319 include parameters such as a display phase offset and a display duration for internally generating a specific video frame, which are stored in the non-volatile memory, for example. It should be understood that the parameter module 7319 is provided to conveniently set/adjust parameters such as the display phase offset and the display time duration of a specific video frame, and certainly, in some application cases, the parameter module 7319 may be omitted and the parameters such as the display phase offset and the display time duration of the specific video frame may be preset in the frame display phase and time duration adjusting module 7317.
Finally, it should be noted that the display controller 12 and the LED display screen body 13 in the foregoing embodiments may be collectively referred to as an LED display device, and the LED display device may be replaced by other display devices configured with a specific video frame generation function and a video frame display phase and display duration adjustment function in other embodiments; the image capture and screen recognition means 15 and the screen content replacement means 16 in the foregoing embodiments may be collectively referred to as video recording and replacement means; furthermore, in other embodiments of the present invention, the internally generated specific video frames may be generated by the display controller 12, and then the display controller 12 transmits the input video frames and the specific video frames to the receiving card 531 in a periodic alternate input manner (for example, ABABAB … alternate input manner), in which case the video frames output by the play output device 11 and the specific video frames locally generated by the display controller 12 are external input video frames and internal generation video frames, respectively, with respect to the LED display device. Furthermore, the frame display phase shift and frame display duration adjustment for a particular video frame is not limited to being performed in the receiving card, but may be performed in the display controller 12, which is advantageous in that the frame display phase shift and frame display duration adjustment for a particular video frame may be performed in a full frame manner, since the receiving card may only intercept a portion of the particular video frame that is itself loaded, rather than the full frame. Alternatively, both the external input video frames and the specific video frames may be provided by the play output device 11 in fig. 4 and output to the display controller 12 periodically in turns (e.g., in an ABABAB … alternating manner).
In summary, the embodiment of the present invention records the live video including the display content in the screen area and identifies and locates the screen area by using the screen area locating identifier, so that when live broadcast is performed in different areas (live broadcast can be performed through a television or live broadcast can be performed through a network), live broadcast advertisers can implant different advertisement contents in the screen area through content replacement and introduce the advertisement contents into the live broadcast in different areas, thereby maximizing the value of the advertisement.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one logical division, and the actual implementation may have another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute some steps of the methods according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (15)
- A video recording and processing system, comprising:the camera shooting and screen recognition device is used for carrying out video recording on the site where the target display device is located so as to obtain a recorded video containing a screen area positioning identifier of the target display device, and recognizing the screen area of the target display device in the recorded video according to the screen area positioning identifier;and the screen content replacing device is connected with the camera shooting and screen identifying device and is used for replacing the content in the screen area identified in the recorded video into target content so as to obtain a target video signal as output.
- The video recording and processing system of claim 1, wherein the screen area location indicator is formed by a plurality of light emitting units having a predetermined distribution characteristic and being in an illuminated state, which are disposed at an edge of the screen area and in the screen area of the target display device.
- The video recording and processing system of claim 2, wherein said target display device comprises a housing and a receiving card connected to said housing, a plurality of said light emitting units being disposed at an edge of a display area and inside of said display area of said housing.
- The video recording and processing system of claim 1, wherein said screen area location indicator is a picture having a particular content characteristic that is periodically displayed on said screen area of said target display device.
- The video recording and processing system of claim 4, wherein the frames with specific content characteristics are black frames displayed during a periodic black field time of the target display device, and wherein a sampling time setting of the video recording is located during the periodic black field time of the target display device.
- The video recording and processing system according to claim 4, wherein the frame with the specific content feature is a display frame of a specific video frame with a preset content feature and a periodic display feature among a plurality of video frames alternately displayed by the target display device, and the sampling time of the video recording is set within the display time of the specific video frame.
- The video recording and processing system of claim 6, wherein said particular video frame is a monochrome video frame generated by said target display device based on a specified pixel data in an externally input video frame.
- The video recording and processing system of claim 6, wherein said target display device includes an LED display screen body, said LED display screen body including a receiving card and a housing connected to said receiving card, said receiving card comprising: the system comprises an image receiving module, an internal specific video frame generating module, a first image driving module, a second image driving module, a multiplexer and a frame display phase and time length adjusting module; the first image driving module is connected with the image receiving module, the second image driving module is connected with the internal specific video frame generating module, the image receiving module is used for receiving a first video frame except the specific video frame in the plurality of video frames, the internal specific video frame generating module is used for synchronously generating the specific video frame under the action of a field synchronization signal of the first video frame, and the multiplexer is connected with the first image driving module and the second image driving module to receive the first video frame and the specific video frame synchronously output by the first image driving module and the second image driving module and alternately output the first video frame and the specific video frame under the control of a frame selection signal generated by the frame display phase and the time and length adjusting module.
- The video recording and processing system of claim 1, further comprising:the playing output device is used for outputting videos or images to the target display device;and the synchronizing device is connected with the playing output device and the camera and screen recognition device to generate a synchronizing signal so that the playing output device and the camera and screen recognition device are synchronized, or is connected with the target display device and the camera and screen recognition device to generate a synchronizing signal so that the target display device and the camera and screen recognition device are synchronized.
- A video recording and processing method is characterized by comprising the following steps:carrying out video recording on the site where a target display device is located and enabling the sampling moment of the video recording to be located in the picture display time with the specific content characteristics and the periodic display characteristics of the target display device so as to obtain a recorded video;identifying the screen area in the recorded video according to the specific content characteristic and the periodic display characteristic of the picture displayed in the picture display time by the screen area of the target display device; andand replacing the content in the screen area identified in the recorded video with target content to obtain a target video signal as output.
- The video recording and processing method according to claim 10, wherein the frame display time is a periodic black field time of the target display device, the frame displayed by the screen area of the target display device during the frame display time is a black frame, and the sampling time of the video recording is partially within the periodic black field time.
- The video recording and processing method according to claim 10, wherein the frame display time is a display time of a specific video frame having a preset content feature and a periodic display feature among a plurality of video frames alternately displayed by the target display device, and the sampling time of the video recording is only located within the display time of the specific video frame; wherein the particular video frame is a monochrome video frame.
- The video recording and processing method of claim 12, wherein the specific video frame is generated based on a specified pixel data in one of the plurality of video frames other than the specific video frame.
- A video recording and processing method is characterized by comprising the following steps:carrying out video recording on the site where a target display device is located to obtain a recorded video containing a screen area positioning identifier of the target display device;identifying the screen area of the target display device in the recorded video according to the screen area positioning identifier; andand replacing the content in the screen area identified in the recorded video with target content to obtain a target video signal as output.
- The video recording and processing method according to claim 14, wherein the screen area location indicator is composed of a plurality of non-visible point light sources having a predetermined distribution characteristic and being in an illuminated state, which are disposed at an edge of a screen area and within the screen area of the target display device, or the screen area location indicator is a picture having a specific content characteristic and being periodically displayed in the screen area of the target display device.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2017/082292 WO2018195879A1 (en) | 2017-04-27 | 2017-04-27 | Video recording and processing system and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110521212A true CN110521212A (en) | 2019-11-29 |
Family
ID=63919386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780088380.0A Pending CN110521212A (en) | 2017-04-27 | 2017-04-27 | Video record and processing system and method |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110521212A (en) |
| WO (1) | WO2018195879A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115334235A (en) * | 2022-07-01 | 2022-11-11 | 西安诺瓦星云科技股份有限公司 | Video processing method, device, terminal equipment and storage medium |
| CN115361541A (en) * | 2022-10-20 | 2022-11-18 | 潍坊歌尔电子有限公司 | Method and device for recording projection content of projector, projector and storage medium |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1199530A (en) * | 1995-09-08 | 1998-11-18 | 奥瑞德高技术系统有限公司 | Method and apparatus for automatic electronic replacement of billboards in video image |
| CN103873741A (en) * | 2014-04-02 | 2014-06-18 | 北京奇艺世纪科技有限公司 | Method and device for substituting area of interest in video |
| CN104618779A (en) * | 2010-07-13 | 2015-05-13 | 索尼电脑娱乐公司 | Supplemental video content on a mobile device |
| CN105611426A (en) * | 2016-01-15 | 2016-05-25 | 深圳市奥拓电子股份有限公司 | Method and device for virtually displaying image |
| CN105741753A (en) * | 2016-02-03 | 2016-07-06 | 西安诺瓦电子科技有限公司 | Receiving card, LED display control and recording system and LED display control method |
| CN106412459A (en) * | 2016-09-30 | 2017-02-15 | 佛山市青松科技股份有限公司 | Image display system and method |
| WO2017063055A1 (en) * | 2015-10-13 | 2017-04-20 | Tzorya Ilan | Video advertising by virtual content placement |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8054294B2 (en) * | 2006-03-31 | 2011-11-08 | Sony Corporation | Touch screen remote control system for use in controlling one or more devices |
| CN102323868B (en) * | 2011-10-26 | 2013-07-31 | 中国人民解放军国防科学技术大学 | Man-machine multipoint interaction method and device based on infrared image |
| CN103761062B (en) * | 2014-01-24 | 2016-06-22 | 孔阳 | A kind of method at the corresponding material of two-dimension code area display and mobile terminal |
| CN104822086B (en) * | 2015-04-28 | 2018-11-23 | 深圳创维－Rgb电子有限公司 | Information-pushing method, terminal and system |
| CN106200900B (en) * | 2016-06-24 | 2019-02-01 | 北京奇思信息技术有限公司 | Trigger the method and system of virtual reality interaction in video based on identification region |
-
2017
- 2017-04-27 CN CN201780088380.0A patent/CN110521212A/en active Pending
- 2017-04-27 WO PCT/CN2017/082292 patent/WO2018195879A1/en active Application Filing
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1199530A (en) * | 1995-09-08 | 1998-11-18 | 奥瑞德高技术系统有限公司 | Method and apparatus for automatic electronic replacement of billboards in video image |
| CN104618779A (en) * | 2010-07-13 | 2015-05-13 | 索尼电脑娱乐公司 | Supplemental video content on a mobile device |
| CN103873741A (en) * | 2014-04-02 | 2014-06-18 | 北京奇艺世纪科技有限公司 | Method and device for substituting area of interest in video |
| WO2017063055A1 (en) * | 2015-10-13 | 2017-04-20 | Tzorya Ilan | Video advertising by virtual content placement |
| CN105611426A (en) * | 2016-01-15 | 2016-05-25 | 深圳市奥拓电子股份有限公司 | Method and device for virtually displaying image |
| CN105741753A (en) * | 2016-02-03 | 2016-07-06 | 西安诺瓦电子科技有限公司 | Receiving card, LED display control and recording system and LED display control method |
| CN106412459A (en) * | 2016-09-30 | 2017-02-15 | 佛山市青松科技股份有限公司 | Image display system and method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115334235A (en) * | 2022-07-01 | 2022-11-11 | 西安诺瓦星云科技股份有限公司 | Video processing method, device, terminal equipment and storage medium |
| CN115334235B (en) * | 2022-07-01 | 2024-06-04 | 西安诺瓦星云科技股份有限公司 | Video processing method, device, terminal equipment and storage medium |
| CN115361541A (en) * | 2022-10-20 | 2022-11-18 | 潍坊歌尔电子有限公司 | Method and device for recording projection content of projector, projector and storage medium |
| CN115361541B (en) * | 2022-10-20 | 2023-01-24 | 潍坊歌尔电子有限公司 | Method and device for recording projection content of projector, projector and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018195879A1 (en) | 2018-11-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5557972B1 (en) | Visible light communication signal display method and display device | |
| JP5715301B2 (en) | Display method and display device | |
| CN103167293B (en) | Display system | |
| US11336813B2 (en) | Method and device for synchronizing a digital photography camera with alternative image content shown on a physical display | |
| US20090051759A1 (en) | Equipment and methods for the synchronization of stereoscopic projection displays | |
| US20110050850A1 (en) | Video combining device, video display apparatus, and video combining method | |
| CN100369461C (en) | Image capture apparatus, image display method, and program | |
| CN105741753A (en) | Receiving card, LED display control and recording system and LED display control method | |
| CN102771109A (en) | Video delivery and control by overwriting video data | |
| CN111357286B (en) | Display apparatus, method for controlling display apparatus, and image providing apparatus | |
| JP5539297B2 (en) | Display system, calibration method, computer program, and recording medium | |
| CN107637087A (en) | Image display, image output device and its control method | |
| US20130155322A1 (en) | Display device, display method, transmitting device and transmitting method | |
| US20130016196A1 (en) | Display apparatus and method for displaying 3d image thereof | |
| CN110521212A (en) | Video record and processing system and method | |
| CN107147861A (en) | Video record and processing system and method | |
| CN107071322A (en) | Video record and processing system and method | |
| US9049495B2 (en) | Information processing system, information processing apparatus, control method of these, and storage medium | |
| US20050151746A1 (en) | Video card with interchangeable connector module | |
| US20130141426A1 (en) | Three-dimensional imaging | |
| US20130135334A1 (en) | Image processing apparatus, storage medium for storing control program, and controlling method for image processing apparatus | |
| US8842193B2 (en) | Imaging apparatus | |
| CN101803374A (en) | Digital light processing anti-camcorder switch | |
| US20200090341A1 (en) | System for Dynamically Maximizing the Contrast Between the Foreground and Background in Images and/or Image Sequences | |
| KR102592736B1 (en) | Integrated board control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191129 |