CN110365929B - Information transmission method, device, equipment, system and storage medium - Google Patents
Information transmission method, device, equipment, system and storage medium Download PDFInfo
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- CN110365929B CN110365929B CN201810808730.2A CN201810808730A CN110365929B CN 110365929 B CN110365929 B CN 110365929B CN 201810808730 A CN201810808730 A CN 201810808730A CN 110365929 B CN110365929 B CN 110365929B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
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- H04N7/025—Systems for the transmission of digital non-picture data, e.g. of text during the active part of a television frame
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- H—ELECTRICITY
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- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/10—Adaptations for transmission by electrical cable
Abstract
The invention discloses an information transmission method, an information transmission device, information transmission equipment, an information transmission system and a storage medium, wherein the method comprises the following steps: coding text information corresponding to a video to be transmitted to obtain image data suitable for video data line transmission; and transmitting the image data by adopting the video data line. The embodiment of the invention can directly adopt the video data line to transmit the text information corresponding to the video, thus being capable of successfully transmitting the text information corresponding to the video even under the condition of no network, and further improving the video transmission efficiency.
Description
RELATED APPLICATIONS
The present application claims priority of a prior application with application number "201810317624.4", entitled "information transmission method, apparatus, device, system, and storage medium", filed by applicant 2018-04-10 of the present application.
Technical Field
The embodiments of the present invention relate to the field of information transmission technologies, and in particular, to an information transmission method, apparatus, device, system, and storage medium.
Background
Video is a time-varying stream of images that contains richer information and content that other media cannot express. The information is transmitted in a video form, the real world can be expressed intuitively, vividly, truly and efficiently, and the transmitted information amount is very rich and far greater than text or static images, so that the information is more and more popular with people.
Currently, video data and text information corresponding to video are transmitted separately when video information is transmitted. Specifically, video data is transmitted by adopting a video data line, and text information is transmitted by adopting the internet. However, when the video transmitting device or the video receiving device does not satisfy the networking condition, the text information cannot be successfully transmitted to the video receiving device through the internet, so that the video receiving device cannot successfully play the video; or at this time, the researchers can use the existing video transmission technology and components (acquisition card, video decoder, video card, video encoder, etc. used for transmitting video signals between two computers) and the complicated video underlying protocol to encode and then transmit the text information, so that the labor cost and the time cost are increased.
Disclosure of Invention
Embodiments of the present invention provide an information transmission method, apparatus, device, system, and storage medium, which enable text information corresponding to a video to be successfully transmitted without networking.
In a first aspect, an embodiment of the present invention provides an information transmission method, including:
coding text information corresponding to a video to be transmitted to obtain image data suitable for video data line transmission;
and transmitting the image data by adopting the video data line.
In a second aspect, an embodiment of the present invention further provides an information transmission method, including:
receiving image data sent by sending equipment through a video data line, wherein the image data is data which is obtained by the sending equipment through coding text information corresponding to a video to be transmitted and is suitable for transmission of the video data line;
and decoding the image data to obtain the text information.
In a third aspect, an embodiment of the present invention further provides an information transmission method, including:
the sending device performs the information transmission method of the first aspect and the receiving device performs the information transmission method of the second aspect.
In a fourth aspect, an embodiment of the present invention further provides an information transmission apparatus, including:
the information coding module is used for coding the text information corresponding to the video to be transmitted so as to obtain image data suitable for video data line transmission;
and the information transmission module is used for transmitting the image data by adopting the video data line.
In a fifth aspect, an embodiment of the present invention further provides an information transmission apparatus, including:
the data receiving module is used for receiving image data sent by sending equipment through a video data line, wherein the image data is data which is obtained by coding text information corresponding to a video to be transmitted by the sending equipment and is suitable for video data line transmission;
and the information decoding module is used for decoding the image data to obtain the text information.
In a sixth aspect, an embodiment of the present invention further provides an information transmission system, which is characterized by including the information transmission apparatus in the fourth aspect and the information transmission apparatus in the fifth aspect.
In a seventh aspect, an embodiment of the present invention further provides an apparatus, including:
one or more processors;
a storage device for storing one or more programs,
when the one or more programs are executed by the one or more processors, the one or more processors are caused to implement the information transmission method according to the first aspect.
In an eighth aspect, an embodiment of the present invention further provides an apparatus, including:
one or more processors;
a storage device for storing one or more programs,
when the one or more programs are executed by the one or more processors, the one or more processors are caused to implement the information transmission method according to the second aspect.
In a ninth aspect, an embodiment of the present invention further provides an information transmission system, which is characterized by including the apparatus in the seventh aspect and the apparatus in the eighth aspect.
In a tenth aspect, an embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the information transmission method according to the first aspect.
In an eleventh aspect, the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to implement the information transmission method according to the second aspect.
The embodiment of the invention obtains the image data suitable for the transmission of the video data line by processing the text information corresponding to the video to be transmitted, and transmits the image data by adopting the video data line. Therefore, the embodiment of the invention can directly adopt the video data line to transmit the text information corresponding to the video, so that the text information corresponding to the video can be successfully transmitted even under the condition of no network, and the video transmission efficiency is further improved.
By means of the invention, the underlying protocols in the video line transmission technology can be spanned, i.e. anyone can use the inventive technique, the transmission of other information can be done on the basis of the existing video line transmission technology (in which an acquisition card, a video decoder, a video card, a video encoder, etc. are used for transmitting video signals between two computers) or protocols (but without knowing these protocols or encoding according to the protocols), thus saving the manpower cost, and on the other hand, the transmission of commands is achieved directly by video encoding and decoding the commands to be transmitted, thus also making the technique universal.
Compared with a common text transmission mode, the invention transmits text information by using the video line which originally transmits the video content, thereby greatly improving the transmission quantity of the information in unit time.
In addition, the invention also well avoids the text information from being exposed to the network, thereby ensuring the safety in the process of transmitting the text information.
Drawings
Fig. 1 is a schematic flowchart of an information transmission method according to an embodiment of the present invention;
fig. 2 is a schematic flowchart of an information transmission method according to a second embodiment of the present invention;
fig. 3 is a schematic flowchart of an information transmission method according to a third embodiment of the present invention;
fig. 4 is a schematic flowchart of an information transmission method according to a fourth embodiment of the present invention;
fig. 5 is a schematic flowchart of an information transmission method according to a fifth embodiment of the present invention;
fig. 6 is a schematic flowchart of an information transmission method according to a sixth embodiment of the present invention;
fig. 7 is a schematic structural diagram of an information transmission apparatus according to a seventh embodiment of the present invention;
fig. 8 is a schematic structural diagram of an information transmission apparatus according to an eighth embodiment of the present invention;
fig. 9 is a schematic structural diagram of an apparatus provided in the tenth embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention are described in further detail below with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention.
It should be further noted that, for the convenience of description, only some but not all of the relevant aspects of the present invention are shown in the drawings. Before discussing exemplary embodiments in more detail, it should be noted that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although a flowchart may describe the operations (or steps) as a sequential process, many of the operations can be performed in parallel, concurrently or simultaneously. In addition, the order of the operations may be re-arranged. The process may be terminated when its operations are completed, but may have additional steps not included in the figure. The processes may correspond to methods, functions, procedures, subroutines, and the like.
In the present application, including in the following detailed description and claims, "transmitting the image data using the video data line" and "receiving the image data transmitted by the transmitting device via the video data line" are image transmission and reception related to an acquisition card, a video decoder, a video card, a video encoder, and the like known in the art, and are not the inventive point of the present invention, and therefore are purposely omitted and will not be described in detail.
Example one
Fig. 1 is a flowchart of an information transmission method according to an embodiment of the present invention, where the present embodiment is applicable to a case of transmitting video text information, and the method may be executed by an information transmission apparatus or device according to an embodiment of the present invention, where the information transmission apparatus may be implemented in a software and/or hardware manner, and the apparatus may be integrated in a terminal device or an application end of the terminal device. The terminal device may be, but is not limited to, a mobile terminal (tablet computer or smart phone), a fixed terminal device (e.g., desktop computer).
The application end can be a plug-in of a certain client end embedded in the terminal equipment or a plug-in of an operating system of the terminal equipment, and is matched with an information transmission client end embedded in the terminal equipment or an information transmission application program in the operating system of the terminal equipment for use; the application end may also be an independent client end capable of providing information transmission in the terminal device, which is not limited in this embodiment.
As shown in fig. 1, the method specifically includes:
s101, encoding text information corresponding to a video to be transmitted to obtain image data suitable for video data line transmission.
The text information includes, but is not limited to, video header information, pixel ratio, resolution, aspect ratio, and the like. The video header information includes, but is not limited to, information such as encoding format, video file name, etc.
The video data line is used for transmitting video signals, and includes but is not limited to any one of the following: audio and Video data lines (AV lines), S terminal lines, tristimulus lines, Video Graphics Array (VGA), Digital Video Interface (DVI) data lines, and High Definition Multimedia Interface (HDMI).
Specifically, the text information corresponding to the video can be converted into an image format, so that the corresponding text information exists in the form of image pixel values, and the corresponding image data can be transmitted through a video data line, thereby achieving the purpose of transmitting the text information.
And S102, transmitting the image data by adopting the video data line.
Specifically, the video data line may be used to transmit image data to the receiving device, and after the receiving device receives the image data, the receiving device decodes the image data to obtain corresponding information, and the receiving device may perform corresponding operations according to the information.
In the embodiment, the text information corresponding to the video to be transmitted is processed to obtain the image data suitable for the video data line transmission, and the image data is transmitted by adopting the video data line. Therefore, the embodiment of the invention can directly adopt the video data line to transmit the text information corresponding to the video, so that the text information corresponding to the video can be successfully transmitted even under the condition of no network, and the video transmission efficiency is further improved.
For example, the encoding the text information corresponding to the video to be transmitted to obtain the image data suitable for the transmission of the video data line includes:
quantizing each character contained in the text information corresponding to the video to be transmitted, and taking a quantized value corresponding to each character as a first image pixel value;
and encoding according to the first image pixel value to obtain image data suitable for transmission of a video data line.
Specifically, the numeric value corresponding to each character may be binarized, i.e., represented by 0 or 1, or represented by 0 or 255. Or, normalizing the numerical value corresponding to each character between 0 and 255 to make the quantization value corresponding to each character be any numerical value between 0 and 255, and the like.
Example two
Fig. 2 is a flowchart of an information transmission method according to a second embodiment of the present invention. This embodiment is optimized based on the above embodiment, and in this embodiment, the obtaining, according to the first image pixel value, image data suitable for transmission of a video data line includes: extracting at least one frame of static image from the video to be transmitted, and acquiring a second image pixel value of the at least one frame of static image; and taking the quantization value corresponding to each character as image data suitable for video data line transmission according to the first image pixel value and the second image pixel value.
Correspondingly, the method of the embodiment specifically includes:
s201, carrying out quantization processing on each character contained in text information corresponding to a video to be transmitted, and taking a quantization value corresponding to each character as a first image pixel value.
S202, extracting at least one frame of static image from the video to be transmitted, and acquiring a second image pixel value of the at least one frame of static image.
Specifically, when the extracted static image is a frame, the pixel value of the preset pixel point is selected from the frame of static image as the pixel value of the second image. And when the extracted static images are multiple frames, selecting the pixel value of the preset pixel point from each frame of static image as the pixel value of the second image.
S203, obtaining image data suitable for video data line transmission according to the first image pixel value and the second image pixel value.
Specifically, the first image pixel value may be used to replace the second image pixel value, resulting in image data. Or, the first image pixel value and the second image pixel value are calculated to obtain the image data.
And S204, transmitting the image data by adopting the video data line.
In the embodiment, text information corresponding to a video to be transmitted is quantized, at least one frame of static image is extracted from the video to be transmitted, and a second image pixel value of the at least one frame of static image is obtained; and obtaining image data suitable for video data line transmission according to the first image pixel value and the second image pixel value. Therefore, the embodiment can realize that the text information corresponding to the video is directly transmitted by adopting the video data line, so that the text information corresponding to the video can be successfully transmitted even under the condition of no network, and the video transmission efficiency is further improved. Moreover, the text information and the video data are fused to obtain the image data transmitted by the video data line, so that the safety of the video data and the text information is further improved.
EXAMPLE III
Fig. 3 is a flowchart of an information transmission method according to a third embodiment of the present invention. In this embodiment, the obtaining image data suitable for transmission of a video data line according to the first image pixel value and the second image pixel value includes: selecting an image pixel value at a preset position from the at least one frame of static image as the second image pixel value; and recalculating to obtain the pixel value at the preset position according to the first image pixel value and the second image pixel value, and taking the data corresponding to at least one frame of static image obtained by recalculation as the image data.
Correspondingly, the method of the embodiment specifically includes:
s301, quantizing each character contained in the text information corresponding to the video to be transmitted, and taking a quantized value corresponding to each character as a first image pixel value.
S302, at least one frame of static image is extracted from the video to be transmitted, and an image pixel value at a preset position is selected from the at least one frame of static image to serve as the second image pixel value.
Specifically, one frame of still image or a plurality of frames of still images may be extracted from the video to be transmitted. When a frame of still image is extracted, the corresponding second image pixel value is the image pixel value at the preset position in the frame of still image, for example, the image pixel values at the preset number of positions can be selected as the second image pixel value according to the byte size contained in the text information.
When extracting multiple frames of static images, the corresponding second image pixel value is the image pixel value at the preset position in the multiple frames of static images. For example, if the selected still image is 5 frames, the image pixel values at the positions of the predetermined number may be respectively selected from the 5 frames of still images as the second image pixel values according to the byte size included in the text information. For example, image pixel values of 2 positions are selected from the first frame of still image, image pixel values of 4 positions are selected from the second frame of still image, and so on.
And S303, recalculating to obtain the pixel value at the preset position according to the first image pixel value and the second image pixel value, and taking the data corresponding to at least one frame of static image obtained by recalculation as the image data.
Specifically, when the selected static image is a frame, selecting an image pixel value at a preset position in the static image as the second image pixel value; and recalculating according to the first image pixel value and the second image pixel value to obtain a pixel value at a preset position, and taking the recalculated data corresponding to the preset static image as the image data. For example, the first image pixel value and the second image pixel value at the corresponding positions are subjected to calculation such as addition, subtraction, or weighting, the calculated pixel values are used as the pixel values of the still image and the preset positions, and the data corresponding to the still image is used as the image data suitable for transmission of the video data line.
When extracting multiple frames of static images from the video to be transmitted, respectively acquiring image pixel values from preset positions in the multiple frames of static images as second image pixel values; and recalculating to obtain a pixel value at a preset position according to the first image pixel value and the second image pixel value, and taking the recalculated data corresponding to the plurality of frames of static images as the image data. For example, the first image pixel value and the second image pixel value at the corresponding positions are subjected to calculation such as addition, subtraction or weighting, the calculated pixel values are used as the pixel values at the preset positions, and the data corresponding to the multiple frames of static images obtained through recalculation are used as the image data suitable for transmission of the video data lines.
And S304, transmitting the image data by adopting the video data line.
In the embodiment, text information corresponding to a video to be transmitted is quantized, at least one frame of static image is extracted from the video to be transmitted, and a second image pixel value of the at least one frame of static image is obtained; and taking the quantization value corresponding to each character as a first image pixel value, and obtaining image data suitable for video data line transmission according to the first image pixel value and the second image pixel value. Therefore, the embodiment can realize that the text information corresponding to the video is directly transmitted by adopting the video data line, so that the text information corresponding to the video can be successfully transmitted even under the condition of no network, and the video transmission efficiency is further improved. Moreover, the text information and the video data are fused to obtain the image data transmitted by the video data line, so that the safety of the video data is further improved.
Example four
Fig. 4 is a flowchart of an information transmission method according to a fourth embodiment of the present invention. In this embodiment, the obtaining image data suitable for transmission of a video data line according to the first image pixel value and the second image pixel value includes: adding a blank pixel point in the at least one frame of static image, and taking an image pixel value at the position of the blank pixel point as the second image pixel value; and replacing the second image pixel value with the first image pixel value to obtain image data suitable for video data line transmission.
Correspondingly, the method of the embodiment specifically includes:
s401, carrying out quantization processing on each character contained in the text information corresponding to the video to be transmitted, and taking a quantization value corresponding to each character as a first image pixel value.
S402, adding blank pixel points in the at least one frame of static image, and taking the image pixel values at the positions of the blank pixel points as the second image pixel values.
Specifically, one frame of still image or a plurality of frames of still images may be extracted from the video to be transmitted. When a frame of static image is extracted, blank pixel points are added in the frame of static image, and the number of the added blank pixel points can be determined according to the byte size contained in the text information.
When extracting multiple frames of static images, adding blank pixel points in each frame of static image, wherein the total number of the added blank pixel points of each frame can be determined according to the byte size contained in the text information. For example, if the static image is selected as 5 frames, blank pixel points can be added to the 5 frames of static image as the pixel values of the second image according to the byte size contained in the text information. For example, 2 blank pixels are added to the first frame of still image, 4 blank pixels are added to the second frame of still image, and so on.
And S403, replacing the second image pixel value with the first image pixel value to obtain image data suitable for transmission of a video data line.
Specifically, when the selected static image is a frame, the first image pixel value is used to replace the second image pixel value at the blank pixel point added in the static image of the frame, and the data corresponding to the replaced static image is used as the image data.
When extracting multiple frames of static images from the video to be transmitted, respectively replacing second image pixel values at blank pixel points added in the multiple frames of static images by using the first image pixel values, and taking data corresponding to the multiple frames of static images after replacement as image data.
And S404, transmitting the image data by adopting the video data line.
In this embodiment, text information corresponding to a video to be transmitted is quantized, at least one frame of static image is extracted from the video to be transmitted, blank pixel points are added to the at least one frame of static image, image pixel values at positions of the blank pixel points are used as second image pixel values, and the first image pixel values are used to replace the second image pixel values, so that image data suitable for video data line transmission is obtained. Therefore, the embodiment can realize that the text information corresponding to the video is directly transmitted by adopting the video data line, so that the text information corresponding to the video can be successfully transmitted even under the condition of no network, and the video transmission efficiency is further improved. Moreover, the text information and the video data are fused to obtain the image data transmitted by the video data line, so that the safety of the video data and the text information is further improved.
EXAMPLE five
Fig. 5 is a flowchart of an information transmission method according to a fifth embodiment of the present invention, where the method is applicable to a case of transmitting video text information, and the method may be executed by an information transmission apparatus or device according to the fifth embodiment of the present invention, where the information transmission apparatus may be implemented in a software and/or hardware manner, and the apparatus may be integrated in a terminal device or an application end of the terminal device. The terminal device may be, but is not limited to, a mobile terminal (tablet computer or smart phone), a fixed terminal device (e.g., desktop computer).
The application end can be a plug-in of a certain client end embedded in the terminal equipment or a plug-in of an operating system of the terminal equipment, and is matched with an information transmission client end embedded in the terminal equipment or an information transmission application program in the operating system of the terminal equipment for use; the application end may also be an independent client end capable of providing information transmission in the terminal device, which is not limited in this embodiment.
As shown in fig. 5, the method specifically includes:
s501, receiving image data sent by sending equipment through a video data line, wherein the image data is data which is obtained by the sending equipment through coding processing on text information corresponding to a video to be transmitted and is suitable for transmission of the video data line.
The text information includes, but is not limited to, video header information, pixel ratio, resolution, aspect ratio, and the like. The video header information includes, but is not limited to, information such as encoding format, video file name, etc.
The video data line is used for transmitting video signals, and includes but is not limited to any one of the following: audio and Video data lines (AV lines), S terminal lines, tristimulus lines, Video Graphics Array (VGA), Digital Video Interface (DVI) data lines, and High Definition Multimedia Interface (HDMI).
Specifically, the sending device converts the text information corresponding to the video into an image format, so that the corresponding text information exists in the form of image pixel values, and the corresponding image data can be transmitted to the receiving device through the video data line, thereby achieving the purpose of transmitting the text information.
S502, decoding the image data to obtain the text information.
Specifically, after receiving the image data, the receiving device decodes the image data in a coding mode corresponding to the transmitting device to obtain corresponding text information, and further, the receiving device can execute corresponding operations according to the text information.
In the embodiment, the image data sent by the sending device is received through the video data line, and the image data is decoded to obtain the corresponding text information of the video to be transmitted, so that the text information corresponding to the video can be successfully transmitted even under the condition of no network, and the information transmission efficiency is further improved.
For example, the decoding the image data to obtain the text information corresponding to the video to be transmitted includes:
decoding the image data by adopting a decoding mode corresponding to the coding mode of the sending equipment to obtain a first image pixel value;
and carrying out inverse quantization processing on the first image pixel value to obtain the text information.
Specifically, the adopted coding mode may be predetermined between the transmitting device and the receiving device. Therefore, after the receiving device receives the image data, the image data can be successfully decoded by adopting a corresponding decoding mode.
For example, the decoding the image data by using a decoding method corresponding to the encoding method of the sending device to obtain the first image pixel value includes:
if the coding mode is to extract at least one frame of static image from the video to be transmitted, determining a second image pixel value of the at least one frame of static image;
and decoding according to the second image pixel value to obtain the first image pixel value.
Specifically, when the extracted static image is a frame, the pixel value of the preset pixel point is selected from the frame of static image as the pixel value of the second image. And when the extracted static images are multiple frames, selecting the pixel value of a preset pixel point in each frame of static image as a second image pixel value, and further decoding according to an encoding mode to obtain the first image pixel value.
Illustratively, the decoding the first image pixel value according to the second image pixel value comprises:
selecting an image pixel value at a preset position in the image data as a third image pixel value according to the first coding information;
acquiring an image pixel value at the preset position in the at least one frame of static image according to the first coding information as the second image pixel value;
and calculating the first image pixel value according to the third image pixel value and the second image pixel value.
The first encoding information is information included in an encoding mode agreed in advance by the sending device and the receiving device, and in this embodiment, the first encoding information includes a static image, preset position information, and a calculation mode adopted when the sending device encodes. After receiving the image data, the receiving device may determine, according to preset position information, an image pixel value at a preset position in the image data, that is, a third image pixel value, and a pixel value at the preset position in the still image, that is, a second image pixel value, and calculate the third image pixel value and the second pixel value according to a calculation method included in the image data, that is, the first image pixel value may be obtained.
Illustratively, the decoding the first image pixel value according to the second image pixel value comprises:
determining positions of blank pixel points added in the at least one frame of static image according to second coding information;
and extracting a second image pixel value corresponding to the position of the blank pixel point in the image data as the first image pixel value.
The second encoding information is information included in a coding mode agreed in advance by the sending device and the receiving device, and in this embodiment, the second encoding information includes a still image and added blank pixel point positions adopted in encoding by the sending device. After receiving the image data, the receiving device can determine the positions of blank pixel points in the image data according to the second encoding information, and directly acquire the first image pixel values from the positions.
EXAMPLE six
Fig. 6 is a schematic flowchart of an information transmission method according to a sixth embodiment of the present invention, which is an interactive embodiment in which a sending device and a receiving device complete information transmission together. As shown in fig. 6, the method specifically includes:
s601, the sending equipment encodes text information corresponding to the video to be transmitted so as to obtain image data suitable for video data line transmission.
And S602, the sending equipment sends the image data to the receiving equipment by adopting the video data line.
S603, the receiving device receives the image data sent by the sending device through the video data line, and decodes the image data to obtain the text information.
The sending device and the receiving device can pre-determine the adopted coding mode in advance so as to facilitate the successful decoding of the receiving device.
Specifically, the sending device first performs quantization processing on each character included in text information corresponding to the video to be transmitted, and takes a quantization value corresponding to each character as a first image pixel value; and then coding according to the first image pixel value to obtain corresponding image data.
Specifically, the encoding method that can be adopted by the transmitting device is as follows:
extracting at least one frame of static image from the video to be transmitted, and acquiring a second image pixel value of the at least one frame of static image; and obtaining image data suitable for video data line transmission according to the first image pixel value and the second image pixel value.
For example, in a first encoding mode, an image pixel value at a preset position is selected from the at least one frame of still image as the second image pixel value; and recalculating to obtain the pixel value at the preset position according to the first image pixel value and the second image pixel value, and taking the data corresponding to at least one frame of static image obtained by recalculation as the image data.
In a second encoding mode, adding a blank pixel in the at least one frame of static image, and taking an image pixel value at the position of the blank pixel as the second image pixel value; and replacing the second image pixel value with the first image pixel value to obtain image data suitable for video data line transmission.
After receiving the image data, the receiving device decodes the image data according to the appointed coding mode to obtain information. Specifically, firstly, according to the encoding mode adopted by the sending device, decoding image data to obtain a first image pixel value; and then carrying out inverse quantization processing on the first image pixel value to obtain the information.
If the coding mode adopted by the sending equipment is the first type, the receiving equipment selects an image pixel value at a preset position in the image data as a third image pixel value according to the first coding information; acquiring an image pixel value at the preset position in the at least one frame of static image according to the first coding information as the second image pixel value; and calculating the first image pixel value according to the third image pixel value and the second image pixel value.
If the coding mode adopted by the sending equipment is the second type, the receiving equipment determines the positions of blank pixel points added in the at least one frame of static image according to second coding information; and extracting a second image pixel value corresponding to the position of the blank pixel point in the image data as the first image pixel value.
For a specific encoding method of the sending device and a specific decoding method of the receiving device, reference is made to the above embodiments and details are not repeated here.
EXAMPLE seven
Fig. 7 is a schematic structural diagram of an information transmission apparatus according to a seventh embodiment of the present invention, where the present embodiment is applicable to a case of transmitting video text information, the information transmission apparatus may be implemented in a software and/or hardware manner, and the apparatus may be integrated in a terminal device or an application end of the terminal device. The terminal device may be, but is not limited to, a mobile terminal (tablet computer or smart phone), a fixed terminal device (e.g., desktop computer).
The application end can be a plug-in of a certain client end embedded in the terminal equipment or a plug-in of an operating system of the terminal equipment, and is matched with an information transmission client end embedded in the terminal equipment or an information transmission application program in the operating system of the terminal equipment for use; the application end may also be an independent client end capable of providing information transmission in the terminal device, which is not limited in this embodiment.
As shown in fig. 7, the method specifically includes: an information encoding module 71 and an information transmission module 72;
the information encoding module 71 is configured to encode text information corresponding to a video to be transmitted to obtain image data suitable for video data line transmission.
The information transmission module 72 is configured to transmit the image data using the video data line.
The information transmission apparatus described in this embodiment is used to execute the information transmission method described in each of the above embodiments, and its technical principle and technical effect are similar, and will not be described again here.
Illustratively, the information encoding module 71 includes: an information quantization unit 711 and an information encoding unit 712;
the information quantization unit 711 is configured to perform quantization processing on each character included in the text information corresponding to the video to be transmitted, and use a quantization value corresponding to each character as a first image pixel value;
the information encoding unit 712 is configured to encode image data suitable for transmission of the video data line according to the first image pixel value.
Illustratively, the information encoding unit 712 is specifically configured to: extracting at least one frame of static image from the video to be transmitted, and acquiring a second image pixel value of the at least one frame of static image; and obtaining image data suitable for video data line transmission according to the first image pixel value and the second image pixel value.
Illustratively, the information encoding unit 712 is specifically configured to: selecting an image pixel value at a preset position from the at least one frame of static image as the second image pixel value; and recalculating to obtain the pixel value at the preset position according to the first image pixel value and the second image pixel value, and taking the data corresponding to at least one frame of static image obtained by recalculation as the image data.
Illustratively, the information encoding unit 712 is specifically configured to: adding a blank pixel point in the at least one frame of static image, and taking an image pixel value at the position of the blank pixel point as the second image pixel value; and replacing the second image pixel value with the first image pixel value to obtain image data suitable for video data line transmission.
Illustratively, on the basis of the above embodiment, the quantization value is 0 or 1; or the quantization value is any of 0 to 255.
The information transmission device according to the above embodiments is also used to perform the information transmission method according to the above embodiments, and the technical principle and the technical effect thereof are similar, and will not be described in detail herein.
Example eight
Fig. 8 is a schematic structural diagram of an information transmission apparatus according to an eighth embodiment of the present invention, where this embodiment is applicable to a case of transmitting video text information, the information transmission apparatus may be implemented in a software and/or hardware manner, and the apparatus may be integrated in a terminal device or an application end of the terminal device. The terminal device may be, but is not limited to, a mobile terminal (tablet computer or smart phone), a fixed terminal device (e.g., desktop computer).
The application end can be a plug-in of a certain client end embedded in the terminal equipment or a plug-in of an operating system of the terminal equipment, and is matched with an information transmission client end embedded in the terminal equipment or an information transmission application program in the operating system of the terminal equipment for use; the application end may also be an independent client end capable of providing information transmission in the terminal device, which is not limited in this embodiment.
As shown in fig. 8, the method specifically includes: a data receiving module 81 and an information decoding module 82;
the data receiving module 81 is configured to receive, through a video data line, image data sent by a sending device, where the image data is data that is obtained by the sending device by encoding text information corresponding to a video to be transmitted and is suitable for transmission of the video data line;
the information decoding module 82 is configured to decode the image data to obtain the text information.
The information transmission apparatus described in this embodiment is used to execute the information transmission method described in each of the above embodiments, and its technical principle and technical effect are similar, and will not be described again here.
Illustratively, the information decoding module 82 includes: an information decoding unit 821 and an inverse quantization unit 822;
the information decoding unit 821 is configured to decode the image data by using a decoding method corresponding to the encoding method of the sending device, so as to obtain a first image pixel value;
the inverse quantization unit 822 is configured to perform inverse quantization processing on the first image pixel value to obtain the text information.
Illustratively, the information decoding unit 821 is specifically configured to: if the coding mode is to extract at least one frame of static image from the video to be transmitted, determining a second image pixel value of the at least one frame of static image; and decoding according to the second image pixel value to obtain the first image pixel value.
Illustratively, the information decoding unit 821 is specifically configured to: selecting an image pixel value at a preset position in the image data as a third image pixel value according to the first coding information; acquiring an image pixel value at the preset position in the at least one frame of static image according to the first coding information as the second image pixel value; and calculating the first image pixel value according to the third image pixel value and the second image pixel value.
Illustratively, the information decoding unit 821 is specifically configured to: determining positions of blank pixel points added in the at least one frame of static image according to second coding information; and extracting a second image pixel value corresponding to the position of the blank pixel point in the image data as the first image pixel value.
The information transmission device according to the above embodiments is also used to perform the information transmission method according to the above embodiments, and the technical principle and the technical effect thereof are similar, and will not be described in detail herein.
Example nine
The embodiment of the present invention provides an information transmission system, which includes an information transmission device according to the seventh embodiment of the present invention and an information transmission device according to the eighth embodiment of the present invention.
Example ten
Fig. 9 is a schematic structural diagram of an apparatus provided in the tenth embodiment of the present invention. FIG. 9 illustrates a block diagram of an exemplary computer device 12 suitable for use in implementing embodiments of the present invention. The computer device 12 shown in fig. 9 is only an example and should not bring any limitations to the function and scope of use of the embodiments of the present invention.
As shown in FIG. 9, computer device 12 is in the form of a general purpose computing device. The components of computer device 12 may include, but are not limited to: one or more processors or processing units 16, a system memory 28, and a bus 18 that couples various system components including the system memory 28 and the processing unit 16.
Bus 18 represents one or more of any of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, and a processor or local bus using any of a variety of bus architectures. By way of example, such architectures include, but are not limited to, Industry Standard Architecture (ISA) bus, micro-channel architecture (MAC) bus, enhanced ISA bus, Video Electronics Standards Association (VESA) local bus, and Peripheral Component Interconnect (PCI) bus.
The system memory 28 may include computer system readable media in the form of volatile memory, such as Random Access Memory (RAM)30 and/or cache memory 32. Computer device 12 may further include other removable/non-removable, volatile/nonvolatile computer system storage media. By way of example only, storage system 34 may be used to read from and write to non-removable, nonvolatile magnetic media (not shown in FIG. 9, and commonly referred to as a "hard drive"). Although not shown in FIG. 9, a magnetic disk drive for reading from and writing to a removable, nonvolatile magnetic disk (e.g., a "floppy disk") and an optical disk drive for reading from or writing to a removable, nonvolatile optical disk (e.g., a CD-ROM, DVD-ROM, or other optical media) may be provided. In these cases, each drive may be connected to bus 18 by one or more data media interfaces. Memory 28 may include at least one program product having a set (e.g., at least one) of program modules that are configured to carry out the functions of embodiments of the invention.
A program/utility 50 having a set (at least one) of program modules 52 may be stored, for example, in memory 28, such program modules 52 including, but not limited to, an operating system, one or more application programs, other program modules, and program data, each of which examples or some combination thereof may comprise an implementation of a network environment. Program modules 52 generally carry out the functions and/or methodologies of the described embodiments of the invention.
The processing unit 16 executes various functional applications and data processing by executing programs stored in the system memory 28, for example, implementing an information transmission method provided by an embodiment of the present invention:
coding text information corresponding to a video to be transmitted to obtain image data suitable for video data line transmission;
and transmitting the image data by adopting the video data line.
Further, the encoding the text information corresponding to the video to be transmitted to obtain the image data suitable for the video data line transmission includes:
quantizing each character contained in the text information corresponding to the video to be transmitted, and taking a quantized value corresponding to each character as a first image pixel value;
and encoding according to the first image pixel value to obtain image data suitable for transmission of a video data line.
Further, the encoding of the image data suitable for transmission of the video data line according to the first image pixel value includes:
extracting at least one frame of static image from the video to be transmitted, and acquiring a second image pixel value of the at least one frame of static image;
and obtaining image data suitable for video data line transmission according to the first image pixel value and the second image pixel value.
Further, the obtaining image data suitable for transmission of a video data line according to the first image pixel value and the second image pixel value includes:
selecting an image pixel value at a preset position from the at least one frame of static image as the second image pixel value;
and recalculating to obtain the pixel value at the preset position according to the first image pixel value and the second image pixel value, and taking the data corresponding to at least one frame of static image obtained by recalculation as the image data.
Further, the obtaining image data suitable for transmission of a video data line according to the first image pixel value and the second image pixel value includes:
adding a blank pixel point in the at least one frame of static image, and taking an image pixel value at the position of the blank pixel point as the second image pixel value;
and replacing the second image pixel value with the first image pixel value to obtain image data suitable for video data line transmission.
EXAMPLE eleven
An eleventh embodiment of the present invention provides an apparatus, and referring to fig. 9 in particular, for example, to implement the information transmission method provided in the embodiment of the present invention:
receiving image data sent by sending equipment through a video data line, wherein the image data is obtained by coding text information corresponding to a video to be transmitted by the sending equipment, and the data is suitable for the video data line transmission;
and decoding the image data to obtain the text information.
Further, the decoding the image data to obtain text information corresponding to the video to be transmitted includes:
decoding the image data by adopting a decoding mode corresponding to the coding mode of the sending equipment to obtain a first image pixel value;
and carrying out inverse quantization processing on the first image pixel value to obtain the text information.
Further, the decoding the image data by using a decoding method corresponding to the encoding method of the sending device to obtain a first image pixel value includes:
if the coding mode is to extract at least one frame of static image from the video to be transmitted, determining a second image pixel value of the at least one frame of static image;
and decoding according to the second image pixel value to obtain the first image pixel value.
Further, the decoding the first image pixel value according to the second image pixel value comprises:
selecting an image pixel value at a preset position in the image data as a third image pixel value according to the first coding information;
acquiring an image pixel value at the preset position in the at least one frame of static image according to the first coding information as the second image pixel value;
and calculating the first image pixel value according to the third image pixel value and the second image pixel value.
Further, the decoding the first image pixel value according to the second image pixel value comprises:
determining positions of blank pixel points added in the at least one frame of static image according to second coding information;
and extracting a second image pixel value corresponding to the position of the blank pixel point in the image data as the first image pixel value.
Example twelve
An embodiment of the present invention provides an information transmission system, including an apparatus described in the tenth embodiment of the present invention and an apparatus described in the eleventh embodiment of the present invention.
EXAMPLE thirteen
coding text information corresponding to a video to be transmitted to obtain image data suitable for video data line transmission;
and transmitting the image data by adopting the video data line.
Further, the encoding the text information corresponding to the video to be transmitted to obtain the image data suitable for the video data line transmission includes:
quantizing each character contained in the text information corresponding to the video to be transmitted, and taking a quantized value corresponding to each character as a first image pixel value;
and encoding according to the first image pixel value to obtain image data suitable for transmission of a video data line.
Further, the encoding of the image data suitable for transmission of the video data line according to the first image pixel value includes:
extracting at least one frame of static image from the video to be transmitted, and acquiring a second image pixel value of the at least one frame of static image;
and obtaining image data suitable for video data line transmission according to the first image pixel value and the second image pixel value.
Further, the obtaining image data suitable for transmission of a video data line according to the first image pixel value and the second image pixel value includes:
selecting an image pixel value at a preset position from the at least one frame of static image as the second image pixel value;
and recalculating to obtain the pixel value at the preset position according to the first image pixel value and the second image pixel value, and taking the data corresponding to at least one frame of static image obtained by recalculation as the image data.
Further, the obtaining image data suitable for transmission of a video data line according to the first image pixel value and the second image pixel value includes:
adding a blank pixel point in the at least one frame of static image, and taking an image pixel value at the position of the blank pixel point as the second image pixel value;
and replacing the second image pixel value with the first image pixel value to obtain image data suitable for video data line transmission.
Example fourteen
receiving image data sent by sending equipment through a video data line, wherein the image data is obtained by coding text information corresponding to a video to be transmitted by the sending equipment, and the data is suitable for the video data line transmission;
and decoding the image data to obtain the text information.
Further, the decoding the image data to obtain text information corresponding to the video to be transmitted includes:
decoding the image data by adopting a decoding mode corresponding to the coding mode of the sending equipment to obtain a first image pixel value;
and carrying out inverse quantization processing on the first image pixel value to obtain the text information.
Further, the decoding the image data by using a decoding method corresponding to the encoding method of the sending device to obtain a first image pixel value includes:
if the coding mode is to extract at least one frame of static image from the video to be transmitted, determining a second image pixel value of the at least one frame of static image;
and decoding according to the second image pixel value to obtain the first image pixel value.
Further, the decoding the first image pixel value according to the second image pixel value comprises:
selecting an image pixel value at a preset position in the image data as a third image pixel value according to the first coding information;
acquiring an image pixel value at the preset position in the at least one frame of static image according to the first coding information as the second image pixel value;
and calculating the first image pixel value according to the third image pixel value and the second image pixel value.
Further, the decoding the first image pixel value according to the second image pixel value comprises:
determining positions of blank pixel points added in the at least one frame of static image according to second coding information;
and extracting a second image pixel value corresponding to the position of the blank pixel point in the image data as the first image pixel value.
Computer storage media for embodiments of the invention may employ any combination of one or more computer-readable media. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
A computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Computer program code for carrying out operations for aspects of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, Smalltalk, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (18)
1. An information transmission method, comprising:
coding text information corresponding to a video to be transmitted to obtain image data suitable for video data line transmission;
transmitting the image data by using the video data line;
the encoding processing of the text information corresponding to the video to be transmitted to obtain the image data suitable for the video data line transmission comprises:
quantizing each character contained in the text information corresponding to the video to be transmitted, and taking a quantized value corresponding to each character as a first image pixel value, wherein the quantizing process comprises binarization of the quantized value corresponding to each character, and the quantized value is represented by 0 or 255;
and encoding according to the first image pixel value to obtain image data suitable for transmission of a video data line.
2. The method of claim 1, wherein said encoding image data suitable for transmission over a line of video data based on said first image pixel values comprises:
extracting at least one frame of static image from the video to be transmitted, and acquiring a second image pixel value of the at least one frame of static image;
and obtaining image data suitable for video data line transmission according to the first image pixel value and the second image pixel value.
3. The method of claim 2, wherein said encoding image data suitable for transmission over a video data line based on said first image pixel value and said second image pixel value comprises:
selecting an image pixel value at a preset position from the at least one frame of static image as the second image pixel value;
and recalculating to obtain the pixel value at the preset position according to the first image pixel value and the second image pixel value, and taking the data corresponding to at least one frame of static image obtained by recalculation as the image data.
4. The method of claim 2, wherein said encoding image data suitable for transmission over a video data line based on said first image pixel value and said second image pixel value comprises:
adding a blank pixel point in the at least one frame of static image, and taking an image pixel value at the position of the blank pixel point as the second image pixel value;
and replacing the second image pixel value with the first image pixel value to obtain image data suitable for video data line transmission.
5. An information transmission method, comprising:
receiving image data sent by sending equipment through a video data line, wherein the image data is data which is obtained by the sending equipment through coding text information corresponding to a video to be transmitted and is suitable for transmission of the video data line; the method for coding the text information corresponding to the video to be transmitted to obtain the image data suitable for the video data line transmission comprises the following steps: quantizing each character contained in the text information corresponding to the video to be transmitted, and taking a quantized value corresponding to each character as a first image pixel value, wherein the quantizing process comprises binarization of the quantized value corresponding to each character, and the quantized value is represented by 0 or 255; coding according to the first image pixel value to obtain image data suitable for transmission of a video data line;
and decoding the image data to obtain the text information.
6. The method according to claim 5, wherein the decoding the image data to obtain the text information corresponding to the video to be transmitted comprises:
decoding the image data by adopting a decoding mode corresponding to the coding mode of the sending equipment to obtain a first image pixel value;
and carrying out inverse quantization processing on the first image pixel value to obtain the text information.
7. The method of claim 6, wherein decoding the image data using a decoding scheme corresponding to the encoding scheme of the sending device to obtain a first image pixel value comprises:
if the coding mode is to extract at least one frame of static image from the video to be transmitted, determining a second image pixel value of the at least one frame of static image;
and decoding according to the second image pixel value to obtain the first image pixel value.
8. The method of claim 7, wherein the decoding the first image pixel value from the second image pixel value comprises:
selecting an image pixel value at a preset position in the image data as a third image pixel value according to the first coding information;
acquiring an image pixel value at the preset position in the at least one frame of static image according to the first coding information as the second image pixel value;
and calculating the first image pixel value according to the third image pixel value and the second image pixel value.
9. The method of claim 7, wherein the decoding the first image pixel value from the second image pixel value comprises:
determining positions of blank pixel points added in the at least one frame of static image according to second coding information;
and extracting a second image pixel value corresponding to the position of the blank pixel point in the image data as the first image pixel value.
10. An information transmission method, comprising:
the transmitting device performs the method of any of claims 1-4 and the receiving device performs the method of any of claims 5-9.
11. An information transmission apparatus, comprising:
the information coding module is used for coding the text information corresponding to the video to be transmitted so as to obtain image data suitable for video data line transmission; the method for coding the text information corresponding to the video to be transmitted to obtain the image data suitable for the video data line transmission comprises the following steps: quantizing each character contained in the text information corresponding to the video to be transmitted, and taking a quantized value corresponding to each character as a first image pixel value, wherein the quantizing process comprises binarization of the quantized value corresponding to each character, and the quantized value is represented by 0 or 255; coding according to the first image pixel value to obtain image data suitable for transmission of a video data line;
and the information transmission module is used for transmitting the image data by adopting the video data line.
12. An information transmission apparatus, comprising:
the data receiving module is used for receiving image data sent by sending equipment through a video data line, wherein the image data is data which is obtained by coding text information corresponding to a video to be transmitted by the sending equipment and is suitable for video data line transmission; the method for coding the text information corresponding to the video to be transmitted to obtain the image data suitable for the video data line transmission comprises the following steps: quantizing each character contained in the text information corresponding to the video to be transmitted, and taking a quantized value corresponding to each character as a first image pixel value, wherein the quantizing process comprises binarization of the quantized value corresponding to each character, and the quantized value is represented by 0 or 255; coding according to the first image pixel value to obtain image data suitable for transmission of a video data line;
and the information decoding module is used for decoding the image data to obtain the text information.
13. An information transmission system comprising the information transmission apparatus of claim 11 and the apparatus of claim 12.
14. A computer device, characterized in that the computer device comprises:
one or more processors;
a storage device for storing one or more programs,
when executed by the one or more processors, cause the one or more processors to implement the information transmission method of any one of claims 1-4.
15. A computer device, characterized in that the computer device comprises:
one or more processors;
a storage device for storing one or more programs,
when executed by the one or more processors, cause the one or more processors to implement the information transmission method of any one of claims 5-9.
16. An information transmission system comprising the computer device of claim 14 and the computer device of claim 15.
17. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the information transmission method according to any one of claims 1 to 4.
18. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the information transmission method according to any one of claims 5 to 9.
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| KR100970727B1 (en) * | 2002-10-15 | 2010-07-16 | 삼성전자주식회사 | Information storage medium containing sub title data for multi-languages using text data and downlodable font and apparatus therefor |
| CN100587795C (en) * | 2008-04-21 | 2010-02-03 | 哈尔滨侨航通信设备有限公司 | Method for displaying any language at hardware terminal via establishing lattice word library |
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| CN105069739A (en) * | 2015-08-04 | 2015-11-18 | 国家电网公司 | Power grid GIS (Geographic Information System) spatial image copyright control method |
| KR101657585B1 (en) * | 2015-11-13 | 2016-09-19 | (주)제이케이소프트 | System for Suggesting Product Dealing based on Hash Tag using Mobile Application and Method therefor |
| CN105898214A (en) * | 2016-03-24 | 2016-08-24 | 北京农业信息技术研究中心 | Site surveying device, site surveying confirmation method, and server |
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