APPARATUS AND METHOD FOR COMPRESSING PICTURES WITH ROI-DEPENDENT COMPRESSION PARAMETERS
First Claim
1. An apparatus to compress a video, the apparatus comprising:
- a region of interest (ROI) estimating part to estimate ROI information associated with a first ROI in the video;
a parameter allocating part to allocate a first compression parameter to the first ROI in the video based on the ROI information; and
a compression part to compress the video by applying the first compression parameter allocated to the first ROI.
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Accused Products
Abstract
An apparatus and method to decrease bit rate through direct control of video compression parameters when compressing a video. The video compressing apparatus may use a Region of Interest (ROI)-dependent compression parameter and may include a ROI estimating part, a parameter allocating part, and a compression part. The ROI estimating part may estimate the
ROI of an input video. The parameter allocating part may allocate a compression parameter to each region of the input video based on the estimated ROI information. The compression part may compress the input video by applying the parameter allocated to each region. A higher compression rate may be achieved by allocating a higher bit rate to the ROI and a lower bit rate to non-ROI regions.
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Citations
19 Claims
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1. An apparatus to compress a video, the apparatus comprising:
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a region of interest (ROI) estimating part to estimate ROI information associated with a first ROI in the video; a parameter allocating part to allocate a first compression parameter to the first ROI in the video based on the ROI information; and a compression part to compress the video by applying the first compression parameter allocated to the first ROI. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method to compress a video, comprising:
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estimating region of interest (ROI) information associated with a first ROI in the video; allocating a first compression parameter to the first ROI of the video based on the ROI information; and compressing the video by applying the first compression parameter allocated to the first ROI. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification