Method for realizing digital TV picture graph text information storaging
A technology of digital TV and picture, applied in the parts of color TV, parts of TV system, TV, etc., can solve the difficult to adapt to the development requirements of humanized, intelligent and rationalized digital TV applications, which is not conducive to graphic information Extracting, sending, transferring, printing, difficult to meet the user's demand for high-quality images, etc., to achieve the effect of saving hard disk space, saving humanization, and occupying less space
Inactive Publication Date: 2007-06-06
SUN YAT SEN UNIV
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[0007] If a certain compression method is used for digital video recording of TV video, it will inevitably be at the cost of loss of picture quality and content clarity, and it is difficult to meet the user's demand for high-quality pictures
At the same time, use the TV video digital recording function to realize the preservation of the graphic information of the digital TV screen. The storage format is the video format, which is very unfavorable for users to extract, send, transfer, print and other operations of the graphic information.
[0008] It can be seen that simply using video format to store graphic information, instead of adopting different storage methods for different video, image, and text information according to different information attributes and usage requirements, will cause many problems. It will also be difficult to adapt to the development requirements of humanized, intelligent and rationalized digital TV applications
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[0026] The following drawings further illustrate the present invention.
[0027] Figure 1 shows a flow chart of a method for saving image and text information of a digital TV screen, including two aspects: a screen interception process and a text recognition process, which correspond to the storage of image information and the storage of text information, respectively.
[0028] First, the digital set-top box or digital TV receives the signal from the remote control, and the process of screen interception or text recognition is established.
[0029] Then, the process immediately preempts the microprocessor and occupies the resources of the microprocessor to prepare for calculation and control of the next scheduling.
[0030] Then, the resource requirements are fully satisfied, and the process immediately transfers the digital signal of the current picture from the image memory to the public memory for temporary storage, and releases the resources of the microprocessor. If the publi...
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A method for storing alphaphotographic information of digital TV picture includes launching operation signal by remote controller, using microprocessor to carry out data treatment, storing digital signal picture corresponding to current analog picture from image storage to public storage, calling caught digital signal picture out from public storage and storing it into file folder of hard disc, using ORC to carry out operation on stored image information, leading identified writing information out of hard disc in file mode and storing it correspondingly with original image information.
Description
Technical field [0001] The present invention relates to the application field of digital television, in particular to a method for storing image information and text information of a digital television screen. Background technique [0002] Digital TV technology and functions are changing with each passing day. In the current digital TV field, digital set-top boxes or digital TVs with embedded organic top box functions are constantly developing, with more and more hardware support and more powerful functions. With the continuous development of digital TV software systems and hardware equipment, the application fields of digital TV are becoming more and more extensive, and the functions tend to meet the various needs of users. The goals achieved are also more humane and intelligent. Methods and means have also become more rationalized. [0003] Now and in the future, digital TV, as a huge information carrier, spreads a large amount of different information, and as an audience user ...
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IPC IPC(8): H04N5/00H04N5/76G06K9/00
Inventor 吴捷罗笑南
Owner SUN YAT SEN UNIV