Method for transmission control in hybrid temporal-SNR fine granular video coding
First Claim
1. A method for determining a number of transmission bits, at a known bit-rate, for each of a current quality enhancement layer frame and a current temporal enhancement layer frame in a transmission of a fine granular enhanced encoded video frame, said method comprising the steps of:
- comparing a ratio of a first measure of said quality enhancement layer frame and a second measure of said quality enhancement layer frame and said temporal enhancement layer frame to a known threshold; and
determining said number of transmission bits using a first method when said ratio is below a known threshold and using a second method otherwise.
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Accused Products
Abstract
In a Fine Granular Video encoding system, a method for determining the number of transmission bits of SNR encoded and temporally encoded video data within a frame to balance image quality and object motion is presented. In accordance with the principles of the invention, a number of transmission bits at a known bit-rate for a quality enhanced video frame and a temporal enhanced video frame is determined to balance image quality and object motion smoothness. In one aspect of the invention, the number of bits transmitted in each frame is determined by comparing a ratio of a measure of video encoded information within the quality enhanced video frame and a measure of video encode information within the quality enhanced video frame and the temporally enhanced video frame to a known threshold level. The number of transmission bits in each enhancement layer is then determined using a first method when the ratio is above a known threshold and using a second method otherwise. In a second aspect of the invention, the number of bits is determined by first determining a measure of motion activity and complexity. The number of transmission bits is determined using a first method when the motion activity is below a known measure or the complexity if above a known threshold. Otherwise a second method is used to determine the number of transmission bits in each enhancement layer.
15 Citations
38 Claims
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1. A method for determining a number of transmission bits, at a known bit-rate, for each of a current quality enhancement layer frame and a current temporal enhancement layer frame in a transmission of a fine granular enhanced encoded video frame, said method comprising the steps of:
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comparing a ratio of a first measure of said quality enhancement layer frame and a second measure of said quality enhancement layer frame and said temporal enhancement layer frame to a known threshold; and
determining said number of transmission bits using a first method when said ratio is below a known threshold and using a second method otherwise. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 19, 20, 23)
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12. A device for determining a number of transmission bits, at a known bit-rate, for each of a current quality enhancement layer frame and a current temporal enhancement layer frame in a transmission of a fine granular encoded video frame, said device including:
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code for comparing a ratio of a first measure of said quality enhancement layer frame and a second measure of said quality enhancement layer frame and said temporal enhancement layer frame to a known threshold; and
code for determining said number of transmission bits using a first method when said ratio is above a known threshold and using a second method otherwise. - View Dependent Claims (13, 14, 15, 17, 18, 21, 22, 24)
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16. The device as recited 15 wherein said threshold monotonically decreases as said temporal enhancement layer frame measure increases.
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25. An memory module containing code therein for determining the number of transmission bits in each of a current quality enhancement layer frame and a current temporal enhancement layer frame in a transmission of a fine granular scalability encoded video frame, said memory module code being operable to:
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compare a measure of at least one next temporal enhancement layer frame to a known level;
determine said number of transmission bits in accordance with a first method when said measure is below said known level;
compare a measure of a current temporal enhancement layer frame with a second known level;
determine said number of transmission bits in accordance with a second method when said second measure is above said second known level;
compare a ratio of a measure of said quality enhancement layer frame and a measure of said quality enhancement layer frame and said temporal enhancement layer frame to a known threshold; and
determine said number of transmission bits in accordance with said first method when said ratio is above a known threshold and in accordance with said second method otherwise. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32)
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33. A method for determining a number of transmission bits, at a known bit-rate, for each of a current quality enhancement layer frame and a current temporal enhancement layer frame in a transmission of a fine granular enhanced encoded video frame, said method comprising the steps of:
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determining said number of transmission bits using a first method when a quality layer frame measure is above an known threshold;
determining said number of transmission bits using said first method when a temporal enhancement layer frame measure is below an acceptable measure;
otherwise, determining said number of transmission bits using a second method. - View Dependent Claims (34, 35, 36, 37, 38)
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Specification