APPARATUS AND METHOD FOR ANALYZING PICTURES FOR VIDEO COMPRESSION WITH CONTENT-ADAPTIVE RESOLUTION

• US 20100034520A1
• Filed: 08/05/2009
• Published: 02/11/2010
• Est. Priority Date: 08/05/2008
• Status: Abandoned Application

• Current Assignee: Mondo Systems, Inc.
• Original Assignee: Mondo Systems, Inc.
• Inventors: CHUNG, Chul
• Application Number:
  US12/536,039
• Publication Number:
  US 20100034520A1
• Time in Patent Office: Days
• US Class Current: 386/241
• CPC Class Codes: H04N 17/004 for digital television systems
• CPC Class Codes: H04N 19/132 Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking
• CPC Class Codes: H04N 19/172 the region being a picture, frame or field
• CPC Class Codes: H04N 19/179 the unit being a scene or a shot
• CPC Class Codes: H04N 19/59 involving spatial sub-sampling or interpolation, e.g. alteration of picture size or resolution

Abstract

An apparatus and method for compressing a video in a video processing system include an adaptive video analyzing apparatus and method for compressing a video after determining a resolution per each frame or group of frames of the video. The adaptive video analyzing apparatus may include an analyzing part to determine the resolution in accordance with a pre-determined standard, and a compressing part to compress the video based on the determined resolution.

Claims

1. A video processing system, comprising:

an analyzing part to receive a video, to analyze the video per frame or scene, and to determine a resolution of the frame or scene; and

a compressing part to compress the video based on the resolution.

2. The video processing system of claim 1, wherein the analyzing part comprises:

a video analyzing part to estimate a distance between a camera and a subject obtained by the camera in at least one frame of the received video; and

a resolution determining part to determine the resolution, the resolution corresponding to the estimated distance in accordance with a mapping table.

3. The video processing system of claim 2, wherein the mapping table determines a lower resolution for a shorter distance between the camera and the subject, and a higher resolution for a longer distance between the camera and the subject, the longer distance being greater than a threshold, and the shorter distance being shorter than the threshold.

4. The video processing system of claim 1, wherein the analyzing part comprises:

a video analyzing part to detect an edge thickness in the video; and

a resolution determining part to determine the resolution, the resolution corresponding to the edge thickness in accordance with a mapping table.

5. The video processing system of claim 4, wherein the mapping table determines a lower resolution for a thick edge thickness, and a higher resolution for a thin edge thickness, the thick edge thickness being greater than a threshold, and the low edge thickness being thinner than the threshold.

6. A method to analyze a video, comprising:

receiving an input video;

analyzing the input video per frame or scene;

determining a resolution of the input video; and

compressing the input video based on the resolution.

7. The method of claim 6, wherein analyzing comprises estimating a distance between a camera and a subject obtained by the camera in at least one frame of the input video, and

wherein the resolution corresponds to the estimated distance in accordance with a mapping table.

8. The method of claim 7, wherein a lower resolution is determined if a shorter distance is estimated between the camera and the subject, and a higher resolution is determined if a longer distance is estimated between the camera and the subject, the longer distance being greater than a threshold, and the shorter distance being shorter than the threshold.

9. The method of claim 6, wherein analyzing comprises detecting an edge thickness in the received input video, and

wherein the resolution corresponds to the edge thickness in accordance with a mapping table.

10. The method of claim 9, wherein a lower resolution is determined if a thick edge thickness is estimated, and a higher resolution is determined if a thin edge thickness is estimated, the thick edge thickness being greater than a threshold, and the low edge thickness being thinner than the threshold.

11. A video processing system having a saving and recording media, the saving and recording media configured to:

analyze an input video per frame or scene;

determine a resolution of the input video; and

compress the input video based on the resolution.

12. The video processing system of claim 11, wherein analyzing comprises estimating a distance between a camera and a subject obtained by the camera in at least one frame of the input video, and

wherein the resolution corresponds to the estimated distance in accordance with a mapping table.

13. The video processing system of claim 12, wherein the saving and recording media comprises the mapping table, the mapping table being configured to determine a lower resolution for a shorter distance between the camera and the subject, and a higher resolution for a longer distance between the camera and the subject, the longer distance being greater than a threshold, and the shorter distance being shorter than the threshold.

14. The video processing system of claim 11, wherein analyzing comprises detecting an edge thickness of an edge in the received input video, and

wherein the resolution corresponds to the edge thickness in accordance with a mapping table.

15. The video processing system of claim 14, wherein the saving and recording media comprises the mapping table, the mapping table being configured to determine a lower resolution for a thick edge thickness, and a higher resolution for a thin edge thickness, the thick edge thickness being greater than a threshold, and the low edge thickness being thinner than the threshold.