Image processing device and method for displaying images on multiple display devices
A technology of image processing device and display device, which is applied in the direction of image communication, electrical digital data processing, digital output to display equipment, etc., and can solve the problem of not being able to encode image data streams to display moving images, etc.
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no. 1 Embodiment approach
[0044] The first embodiment provides an image processing device capable of providing moving images of different resolutions on a plurality of display devices by accepting a coded image data stream that is graded according to the resolution.
[0045] figure 2 The structure of the image processing apparatus 100 of the first embodiment is shown. In terms of hardware, this structure can be realized in the CPU, memory, and other LSIs of any computer, and in terms of software, it can be realized by having a program having a decoding function loaded in the memory, but here, the description will be made by A functional module realized by using these in combination. Therefore, these functional modules can be implemented in various forms only by hardware, or only by software, or by their combination, which can be easily understood by those skilled in the art.
[0046] A stream of coded image data CI is input into the decoding unit 150 of the image processing device 100 . The decodin...
no. 2 Embodiment approach
[0059] Figure 6 The structure of the image display device 200 related to the second embodiment is shown. The image display device 200 includes two display devices: a first display device 222 that displays a high-resolution moving image, such as a monitor or a projector, and a second display device 224 that displays a low-resolution moving image.
[0060] Image decoder 212 of processing block 210, together with CPU 214 and memory 216, continuously decodes the incoming encoded image data stream. The image decoder 212 has the structure of the image processing device 100 of the first embodiment. Furthermore, the high-resolution image data is output to the first display device 222 via the display circuit 218 , and the low-resolution image data is output to the second display device 224 via the display circuit 220 . On each screen, the image data coded by the image decoder 212 is continuously displayed at a given frame rate, and reproduced as a moving image. The processing block...
no. 3 Embodiment approach
[0070] The image processing device in the third embodiment is an image processing device that decodes an image stream hierarchically classified according to resolution or image quality and displays it on a display device, and is characterized in that when a user wants to enhance a part of an image When commanding the image quality of an area, it can be controlled so that the processing amount does not exceed the maximum capability of the image processing device.
[0071] Figure 7 It is a configuration diagram showing the image processing device 300 according to the third embodiment. The image processing device 300 includes a decoding unit 310 that inputs a stream of coded image data CI and decodes an image, and an area designation unit 320 that performs processing on a region of interest designated by a user in an image. The stream analysis unit 10 , arithmetic decoding unit 12 , bit-plane decoding unit 14 , inverse quantization unit 18 , and wavelet inverse conversion unit ...
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