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Adaptive compensation algorithm for digitalization processing of progressive scanned TV signal

An adaptive compensation, TV signal technology, applied in the field of TV scan format conversion and computing video, which can solve the problems of static object distortion, jaggedness, blurring of moving objects and stationary objects, etc.

Inactive Publication Date: 2002-10-23
XI AN JIAOTONG UNIV
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Problems solved by technology

However, when the current interlaced scanning TV signal is converted into a progressive scanning signal, due to the difference in time and space, it will cause blurred edges and jagged edges of moving objects in the image.
If the traditional motion compensation algorithm is used, although the moving objects in the image can be repaired better, it will also affect the still objects in the same frame of the image, causing the still objects to be distorted.
At present, there is no algorithm that can solve the blurring and distortion problems of moving objects and stationary objects well at the same time.

Method used

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  • Adaptive compensation algorithm for digitalization processing of progressive scanned TV signal
  • Adaptive compensation algorithm for digitalization processing of progressive scanned TV signal

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Embodiment Construction

[0019] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation examples.

[0020] Adaptive compensation algorithm for digitally processing progressive scan TV signals, including motion and stillness detection algorithm, motion compensation algorithm, fringe field protection algorithm. The purpose of the motion and stillness detection algorithm is to distinguish the moving object from the still object in the TV signal; the motion compensation algorithm is to effectively compensate the moving object in the TV signal, so that the subjective effect of the compensated image is greatly improved; The fringe field protection algorithm is to compensate for the compensation distortion generated at the junction of the moving part and the edge of the static part. In the realization of the algorithm, the present invention fully considers the realization factors of the hardware. The operations in the algorith...

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Abstract

This invention provides an adaptive algorithms of compensation of TV signals scanning line by line in TV digitalized process to eliminate the motion image deform generated in the process of converting TV signals from the present interleaving to line by line which contains three parts of moving and static algorithms, motion compensation algorithms and edge field protection algorithms. The aim of moving and static detecting algorithms is to separate the moving objects and the static ones and the motion compensation algorithms is for compensation to the moving objects in TV signal, to greatly improve the subjective effect of picture after compensation protected algorithms is to compensate the compensation deform generated at the border of moving part and the static one in which the operationof the algorithms is related only to addition and substraction with the most quick operation speed to make it with real time and high efficiency.

Description

[0001] 1. Field [0002] The invention belongs to the technical field of computerized video and television scan format conversion, in particular to an adaptive compensation algorithm for digitally processing progressive scan television signals. 2. Background technology [0003] Scanning format conversion is a common problem in computing video, high-definition television and traditional TV under the current network environment. Scanning format needs to be converted between different standards, which is a very important research field of digital TV. Compared with the interlaced scanning TV signal, the progressive scanning TV signal has a significant improvement in the vertical definition of the image, large-area flicker, and interline flicker. However, when the current interlaced scanning TV signal is converted into a progressive scanning signal, due to differences in time and space, edges of moving objects in the image will be blurred and jagged. If the traditional motion comp...

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Application Information

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IPC IPC(8): H04N7/01
Inventor 郑南宁梁寒吴勇
Owner XI AN JIAOTONG UNIV
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