Device and method for selecting coding mode for video encoding system
OwnerSung-Kyu Choiinventor
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Abstract
A coding mode selecting method, in which an SAD between input frames is used in a video encoding system, includes the steps of: detecting the SAD value of input frame data; determining whether the detected SAD value exceeds a predetermined SAD threshold; coding the input frame in an intra-coding mode when the SAD value of the input frame exceeds the SAD threshold; and coding the input frame in an inter-coding mode when the SAD value of the input frame does not exceed the SAD threshold.
Claims3
A device for selecting a coding mode for a video encoding system, comprising:
- a first memory for storing frame data of an input image;
- a second memory for storing the previous frame data;
- a motion prediction part for comparing the present input frame data stored in the first memory with the previous frame data stored in the second memory to detect a SAD (sum of absolute pixel differences) value;
- and
- an SAD examiner for generating coding selection information for coding the frame data in an intra-coding mode when the SAD value of the input frame data output from the motion prediction part exceeds a predetermined SAD threshold, or in an inter-coding mode when the SAD value of the input frame data does not exceed the predetermined SAD threshold.
A coding mode selecting method in which an SAD value between input frames is used in a video encoding system, the coding mode selecting method comprising the steps of:
- detecting the SAD value of input frame data;
- determining whether the detected SAD value exceeds a predetermined SAD threshold;
- coding the input frame in an intra-coding mode when the SAD value of the input frame exceeds the SAD threshold;
- and
- coding the input frame in an inter-coding mode when the SAD value of the input frame does not exceed the SAD threshold.
A device for selecting a coding mode for a video encoding system, comprising:
- a motion prediction part for comparing data of a present input frame with data of a previous frame to detect a SAD (sum of absolute pixel differences) value;
- and
- an SAD examiner for generating coding selection information for coding the frame data in an intra-coding mode when the SAD value of the input frame data output from the motion prediction part exceeds a predetermined SAD threshold, or in an inter-coding mode when the SAD value of the input frame data does not exceed the predetermined SAD threshold.
Dependencies are inferred from the claim text.