Digital pick-up camera for bulletin

Abstract

The video camera includes following parts: image picking up device picks up image of object to be displayed so as to form first image data; connected to the image picking up device electrically, the image processor generates a second and third image data based on reduction information of image, magnification information of image, and first image data; connected to the image processor electrically, the position information controller calculates out position information and size information of representing marking frame from the reduction information of image, and the magnification information of image; connected to the position information controller and the image processor electrically, the image synthesizer carries out synthesis treatment for received position information and size information of the marking frame, and displays composite image frame formed from the marking frame, second image data and third image data on a image display device.

Description

technical field [0001] The invention relates to a digital video camera for briefing, especially a digital video camera for briefing applied between an object to be displayed and an image display device. Background technique [0002] The application of multimedia processing technology in electronic products sold on the market can be said to be quite popular, such as: personal digital assistant (Personal Digital Assistant, PDA for short), mobile phone, digital camera, high-definition digital TV, physical projector ( Document Camera), etc., and the digital signal processor (Digital Signal Processor, hereinafter referred to as DSP) is the indispensable main component of these electronic products. [0003] After the analog signal is converted into a digital signal by the analog / digital converter, the digital signal processor (DSP) can process a large number of input digital signals at the same time, and perform calculations quickly to achieve real-time operation (Real-Time) perfo...

AI Technical Summary

Problems solved by technology

[0008] As can be seen from the above, the prior art digital video camera 10 for briefings can usually output and play images in conjunction with the display of a television or computer system. However, the prior art digital video cameras for briefings can usually only output a single display image on the display. Information, taking Zoom In and Zoom Out functions as an example, users can zoom in or zoom out a specific area of ​​a document chart when making a presentation. Compared with traditional projectors, it can It is much more convenient, but usually when the user enlarges the image of a specific area to a certain magnification, the specific area on the display is no longer the specific area that the user originally wanted to zoom in, and the user cannot quickly zoom in on the single display screen. Knowing the relative position information of the magnified image in the full image, so that the user does not know which direction to do the digital pan when performing digital pan on the magnified image display screen, and must first zoom out the image to a smaller size. After low magnification or returning to the full image, and then looking for the desired specific area to zoom in on the image, it will indeed cause a considerable degree of inconvenience and time-consuming for the user to operate. It is an important purpose of the development of the present invention to improve the shortcomings of the digital video camera 10 used for briefing in the prior art in the image information output mode.

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