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Time domain redundant information to <br> video image data have a strong correlation, that is to say there is a lot of redundant information. The redundant information can be divided into airspace redundancy information and time domain redundancy information. Compression technology is to remove the redundant information in the data (remove the correlation between the data). The compression technology includes intra-frame image data compression technology, inter-frame image data compression technology and entropy coding compression technology.
First, go to the time domain redundancy information
The inter-frame coding technique is used to remove time domain redundancy information, which includes the following three parts:
1, motion compensation
Motion compensation is to predict and compensate the current partial image through the previous partial image, which is an effective method to reduce the redundant information of the frame sequence.
2, sports representation
Images of different regions require different motion vectors to describe motion information. Motion vectors are compressed by entropy coding.
3. Motion estimation
Motion estimation is a set of techniques for extracting motion information from a video sequence.
Note: General compression standards use block-based motion estimation and motion compensation.
Video image data has a strong correlation, which means that there is a lot of redundant information. The redundant information can be divided into airspace redundancy information and time domain redundancy information. Compression technology is to remove the redundant information in the data (remove the correlation between the data). The compression technology includes intra-frame image data compression technology, inter-frame image data compression technology and entropy coding compression technology.
First, go to the time domain redundancy information
The inter-frame coding technique is used to remove time domain redundancy information, which includes the following three parts:
1, motion compensation
Motion compensation is to predict and compensate the current partial image through the previous partial image, which is an effective method to reduce the redundant information of the frame sequence.
2, sports representation
Images of different regions require different motion vectors to describe motion information. Motion vectors are compressed by entropy coding.
3. Motion estimation
Motion estimation is a set of techniques for extracting motion information from a video sequence.
Note: General compression standards use block-based motion estimation and motion compensation.
Video image data has a strong correlation, which means that there is a lot of redundant information. The redundant information can be divided into airspace redundancy information and time domain redundancy information. Compression technology is to remove the redundant information in the data (remove the correlation between the data). The compression technology includes intra-frame image data compression technology, inter-frame image data compression technology and entropy coding compression technology.
First, go to the time domain redundancy information
The inter-frame coding technique is used to remove time domain redundancy information, which includes the following three parts:
1, motion compensation
Motion compensation is to predict and compensate the current partial image through the previous partial image, which is an effective method to reduce the redundant information of the frame sequence.
2, sports representation
Images of different regions require different motion vectors to describe motion information. Motion vectors are compressed by entropy coding.
3. Motion estimation
Motion estimation is a set of techniques for extracting motion information from a video sequence.
Note: General compression standards use block-based motion estimation and motion compensation.
Time domain redundant information to <br> video image data have a strong correlation, that is to say there is a lot of redundant information. The redundant information can be divided into airspace redundancy information and time domain redundancy information. Compression technology is to remove the redundant information in the data (remove the correlation between the data). The compression technology includes intra-frame image data compression technology, inter-frame image data compression technology and entropy coding compression technology.
First, go to the time domain redundancy information
The inter-frame coding technique is used to remove time domain redundancy information, which includes the following three parts:
1, motion compensation
Motion compensation is to predict and compensate the current partial image through the previous partial image, which is an effective method to reduce the redundant information of the frame sequence.
2, sports representation
Images of different regions require different motion vectors to describe motion information. Motion vectors are compressed by entropy coding.
3. Motion estimation
Motion estimation is a set of techniques for extracting motion information from a video sequence.
Note: General compression standards use block-based motion estimation and motion compensation.
Video image data has a strong correlation, which means that there is a lot of redundant information. The redundant information can be divided into airspace redundancy information and time domain redundancy information. Compression technology is to remove the redundant information in the data (remove the correlation between the data). The compression technology includes intra-frame image data compression technology, inter-frame image data compression technology and entropy coding compression technology.
First, go to the time domain redundancy information
The inter-frame coding technique is used to remove time domain redundancy information, which includes the following three parts:
1, motion compensation
Motion compensation is to predict and compensate the current partial image through the previous partial image, which is an effective method to reduce the redundant information of the frame sequence.
2, sports representation
Images of different regions require different motion vectors to describe motion information. Motion vectors are compressed by entropy coding.
3. Motion estimation
Motion estimation is a set of techniques for extracting motion information from a video sequence.
Note: General compression standards use block-based motion estimation and motion compensation.
Video image data has a strong correlation, which means that there is a lot of redundant information. The redundant information can be divided into airspace redundancy information and time domain redundancy information. Compression technology is to remove the redundant information in the data (remove the correlation between the data). The compression technology includes intra-frame image data compression technology, inter-frame image data compression technology and entropy coding compression technology.
First, go to the time domain redundancy information
The inter-frame coding technique is used to remove time domain redundancy information, which includes the following three parts:
1, motion compensation
Motion compensation is to predict and compensate the current partial image through the previous partial image, which is an effective method to reduce the redundant information of the frame sequence.
2, sports representation
Images of different regions require different motion vectors to describe motion information. Motion vectors are compressed by entropy coding.
3. Motion estimation
Motion estimation is a set of techniques for extracting motion information from a video sequence.
Note: General compression standards use block-based motion estimation and motion compensation.
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