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Operational method with functions of executing overlapped filtration and center conversion and device thereof

A core and inverse overlap technology, applied in the field of devices that simultaneously realize overlap filtering and core conversion

Inactive Publication Date: 2011-03-02
NOVATEK MICROELECTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In the above-mentioned traditional structure, it is necessary to complete the overlapping filtering first, and then perform the core conversion

Method used

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  • Operational method with functions of executing overlapped filtration and center conversion and device thereof
  • Operational method with functions of executing overlapped filtration and center conversion and device thereof
  • Operational method with functions of executing overlapped filtration and center conversion and device thereof

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Embodiment Construction

[0052] The present invention provides a hardware implementation method that can realize overlapping filtering and core conversion at the same time, and can make corresponding changes according to different specifications, processes, and operating frequencies. The present invention utilizes transform-level hardware sharing (Transform-level Hardware Sharing) and multi-port register arrays to efficiently implement overlapping filtering and core conversion.

[0053] The present invention provides a hardware structure for effectively implementing boosted overlapping conversion and kernel conversion. In one embodiment, the Figure 4 The hardware structure shown is realized. This hardware structure 400 is a hardware device capable of simultaneously realizing overlapping filtering and core conversion, including a data input terminal 402 for multi-port input, multiplexing selectors (MUX) 410 and 430, and an array of conversion operation modules for multi-port data input and output 420...

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Abstract

The invention relates to an operational method with functions of executing overlapped filtration and center conversion and a device thereof, and provides a hardware implementation method capable of simultaneously realizing the overlapped filtration and the center conversion and an operational method thereof, which can make corresponding changes according to different specifications, processes, operation frequencies and the like. The hardware implementation method and the operational method thereof effectively realize the overlapped filtration and the center conversion by utilizing transform-level hardwaresharing and register array of multi-port in and out.

Description

technical field [0001] The present invention relates to a data processing device and its operation method, and in particular to a device and its operation method for simultaneously realizing overlapping filtering and core conversion. Background technique [0002] Still image compression usually includes three major steps: transform, quantization, and entropy coding. In the legacy JPEG standard, refer to figure 1 , using a discrete cosine transform (DiscreteCosine Transform, DCT) with an 8 by 8 block as an independent transform unit. Although the transformation of DCT has good energy compression properties, it can obtain near-optimal data compression. However, it is still unavoidable to avoid the block effect (Block Effect) generated after the edge conversion of the cut into blocks. [0003] Microsoft Corporation of the United States has introduced a new static image compression format called HD Photo format for this point, which has entered the process of formulating the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/26H04N19/86
Inventor 黄朝宗
Owner NOVATEK MICROELECTRONICS CORP