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Video coding method and equipment on basis of regions of interest

A region of interest and video coding technology, applied in the field of video processing technology, can solve the problems of non-ROI areas such as blurring, indistinguishability, and complex algorithms, and achieve the effect of high video quality, simple and efficient video compression

Inactive Publication Date: 2014-08-06
FUJITSU LTD
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Problems solved by technology

However, this may make non-ROI regions such as the background too blurry to be resolved
[0006] In the video coding method disclosed in the following non-patent literature 3, an improved rate control algorithm is used to calculate the quantization parameter values ​​of the macroblocks in the ROI area and the non-ROI area to achieve video compression, but the algorithm is more complicated

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  • Video coding method and equipment on basis of regions of interest
  • Video coding method and equipment on basis of regions of interest
  • Video coding method and equipment on basis of regions of interest

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Embodiment Construction

[0030] Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings. In the interest of clarity and conciseness, not all features of an actual implementation are described in this specification. It should be understood, however, that in developing any such practical embodiment, many implementation-specific decisions must be made in order to achieve the developer's specific goals, such as meeting those constraints related to the system and business, and those Restrictions may vary from implementation to implementation. Moreover, it should also be understood that development work, while potentially complex and time-consuming, would at least be a routine undertaking for those skilled in the art having the benefit of this disclosure.

[0031] Here, it should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only the device structure and / or processing steps closely related to the so...

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Abstract

The invention discloses a video coding method and equipment on basis of regions of interest. The video coding method includes an object detection step, wherein specified objects in input video frames are detected, and regions of interest and regions of no interest in the video frames are identified on the basis of the detected specified objects; a quantization parameter calculation step, wherein quantization parameter values of macro blocks in the identified regions of interest and regions of no interest are calculated; a macro block type selection step, wherein types of the macro blocks in the regions of interest and regions of no interest are selected on the basis of types of the video frames; a video coding step, wherein the video frames are coded on the basis of the calculated quantization parameter values of the macro blocks in the regions of interest and regions of no interest and the selected types of the macro blocks. According to the method and equipment, video compression can be achieved simply and efficiently, high resolution of the regions of interest is guaranteed, and meanwhile the regions of no interest cannot be too fuzzy to be distinguished.

Description

technical field [0001] The present disclosure relates to video processing technologies, and more specifically, to a region-of-interest (ROI)-based video coding method and device, which can simply and efficiently realize video compression and maintain video frames Good video quality in the ROI area, while not making the video image of the non-ROI area too blurred to be resolved. Background technique [0002] In recent years, applications based on intelligent video processing have been widely used in various electronic devices, and most applications need to transmit compressed video to back-end servers or other communication terminals for further processing. Therefore, there is a problem of conflict between high requirements for video resolution and limited network bandwidth that limits video quality, and a new video encoding method is required to solve this conflict. [0003] Therefore, the concept of ROI is proposed in the video processing technology, so that the applicatio...

Claims

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Application Information

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IPC IPC(8): H04N19/167H04N19/124H04N19/176H04N19/105H04N19/132
Inventor 王琪伍健荣
Owner FUJITSU LTD
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