Common digital representation of still images for data transfer with both slow and fast data transfer rates
First Claim
1. A still image display system for displaying a still image stored as a compressed data file, comprising:
- a progressive decompression component which decompresses the compressed data file and produces successive versions of the still image at progressively increasing resolutions;
a data retrieval medium operably connected to supply the compressed data file to the decompression component at a rate which is at least as fast as the decompression component can decompress the compressed data file;
a visual display device;
an image display component operably connected to successively display the successive versions of the still image produced by the decompression component on the visual display device;
wherein the decompression component acts concurrently with the data retrieval medium to decompress the compressed data file concurrently with retrieving the compressed data file.
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Accused Products
Abstract
A computer system includes a local non-volatile data storage medium and a visual display device. A still image is stored as a compressed data file in a multi-resolution compression format on the non-volatile data storage medium. The multi-resolution format is of a type that allows efficient progressive decompression and display of the selected still image. The computer system includes a data processor programmed to decompress the compressed data file, to produce successive versions of the selected still image at progressively increasing resolutions, and to display the successive versions on the visual display device. The computer system has a data retrieval medium through which the data processor retrieves the compressed data file from the local non-volatile data storage medium. The data retrieval medium has a data transfer rate that is at least as fast as the data processor can decompress the compressed data file and display the successive versions of the selected still image.
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Citations
26 Claims
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1. A still image display system for displaying a still image stored as a compressed data file, comprising:
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a progressive decompression component which decompresses the compressed data file and produces successive versions of the still image at progressively increasing resolutions; a data retrieval medium operably connected to supply the compressed data file to the decompression component at a rate which is at least as fast as the decompression component can decompress the compressed data file; a visual display device; an image display component operably connected to successively display the successive versions of the still image produced by the decompression component on the visual display device; wherein the decompression component acts concurrently with the data retrieval medium to decompress the compressed data file concurrently with retrieving the compressed data file. - View Dependent Claims (2, 3)
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4. A still image display system comprising:
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a non-volatile data storage medium; a selected still image stored as a compressed data file on the non-volatile data storage medium; a progressive decompression component which decompresses the compressed data file and produces successive versions of the selected still image at progressively increasing resolutions; a data retrieval medium operably connected to supply the compressed data file from the non-volatile data storage medium to the decompression component at a rate which is at least as fast as the decompression component can decompress the compressed data file; a visual display device; an image display component operably connected to successively display the successive versions of the selected still image produced by the decompression component on the visual display device; wherein the decompression component acts concurrently with the data retrieval medium to decompress the compressed data file concurrently with retrieving the compressed data file from the non-volatile data storage medium. - View Dependent Claims (5, 6, 7, 8, 9, 10)
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11. A computer comprising:
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a local non-volatile data storage medium; a visual display device; a selected still image stored as a compressed data file in a multi-resolution compression format on the local non-volatile data storage medium, said multi-resolution format being of a type which allows efficient progressive decompression and display of the selected still image; a data processor programmed to decompress the compressed data file;
to produce successive versions of the selected still image at progressively increasing resolutions; and
to display the successive versions on the visual display device;a data retrieval medium through which the data processor retrieves the compressed data file from the local non-volatile data storage medium, the data retrieval medium having a data transfer rate that is at least as fast as the data processor can decompress the compressed data file and display the successive versions of the selected still image; wherein the data processor is programmed to execute at least two concurrent execution threads for retrieving the compressed data file from the non-volatile data storage medium and for decompressing the compressed data file, respectively. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A method of storing and displaying a still image comprising the following steps:
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storing a selected still image on a non-volatile data storage medium as a compressed data file; retrieving the compressed data file from the non-volatile storage medium at a data transfer rate; decompressing the compressed data file to produce successive versions of the selected still image at progressively increasing resolutions at a decompression rate which is as great as the data transfer rate; successively displaying the versions of the selected still image on a visual display device; wherein the retrieving and decompressing steps are performed concurrently. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26)
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Specification