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Serial input-parallel output video image brightness interpolating method and device

A brightness interpolation and serial input technology, applied in image communication, TV, color TV, etc., can solve the problems of time-consuming, hardware processing time extension, etc., and achieve the effect of reducing complexity, saving bandwidth and computing cycle

Inactive Publication Date: 2009-12-09
ZHEJIANG UNIV
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AI Technical Summary

Problems solved by technology

Moreover, generating a 1 / 4 fractional pixel value every nine cycles is too time-consuming, prolonging the processing time of the hardware

Method used

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  • Serial input-parallel output video image brightness interpolating method and device
  • Serial input-parallel output video image brightness interpolating method and device
  • Serial input-parallel output video image brightness interpolating method and device

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Effect test

Embodiment Construction

[0058] Such as image 3 As shown, a H.264 / AVC-based serial input parallel output luminance interpolation device includes:

[0059] (1) The serial Wiener filter can generate 4 horizontal half-pixel intermediate values ​​in 9 cycles. Such as figure 2 shown;

[0060] (2) The 6×8 register array is composed of an integer pixel point storage array and a horizontal half pixel point intermediate value storage array, and is used to store 4 columns of integer pixels and 4 horizontal half pixel point intermediate values. The 6-tap FIR filter is used to find the vertical half-pixel point;

[0061] (3) Pipeline controller, used to control the filling process of the integer pixel point and the horizontal half pixel point intermediate value in the register array, and update the register array;

[0062] (4) 4 bilinear filters. Such as Figure 4 shown. Each bilinear filter selects pixel data according to the motion vector value of the current image relative to the reference image, and ...

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Abstract

The invention discloses an H.264 / AVC-based serial input and parallel output video image brightness interpolation method and a device thereof. The integer pixels of each row are serially input into a Wiener filter to generate the intermediate value of the horizontal half pixel, and the motion vector is used to select the integer pixel, thereby reducing the register array to 6×8 and optimizing 1 / 4 pixel filtering algorithm. Compared with the original parallel input and parallel output interpolation device, at least three 6-tap FIR filters in the horizontal direction are saved. Compared with the original parallel-input-serial-output interpolation device, the register array is reduced from 6×9 to 6×8, and the complexity of the pipeline controller is reduced. Compared with the original serial-input-serial-output interpolation device, the bandwidth and calculation cycles are saved.

Description

technical field [0001] The invention relates to a video image brightness interpolation method and device, in particular to a video image brightness interpolation method and device with serial input and parallel output. Background technique [0002] Video information has the characteristics of intuition, accuracy, efficiency, and extensiveness. With the rapid development of Internet and mobile communication, digital video technology has been widely used. Compared with analog video, digital video has many advantages such as small distortion, low noise, high quality, easy processing, easy correction, large capacity and many programs. advantage. [0003] However, the amount of digital video information is too large, which makes the transmission network bandwidth requirements high. Therefore, the digital video signal is generally compressed and encoded before being transmitted on the network, so as to save transmission bandwidth and storage space. After being transmitted to th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/14
Inventor 戴郁郑伟李东晓骆凯张明
Owner ZHEJIANG UNIV
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