Determination of exposure time for an image frame
First Claim
1. An apparatus, comprising:
- at least one processing unit;
at least one memory, wherein the at least one memory stores program instructions that, when executed by the at least one processing unit, cause the apparatus to;
process at least two consecutive image frames;
select at least one region of interest from the at least two image frames based on the at least one region of interest having a salient object therein;
process the at least one region of interest in the at least two image frames to determine a motion field;
segment the motion field into a plurality of motion clusters;
select, based on the at least one region of interest and the plurality of motion clusters, a most relevant motion cluster from the plurality of motion clusters, the most relevant motion cluster providing one of the following;
a greatest amount of movement among the plurality of motion clusters, or a least amount of movement among the plurality of motion clusters; and
adjust an exposure time based on motion information of the selected most relevant motion cluster.
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Abstract
An apparatus for adjusting an exposure time for an image frame is presented. The apparatus comprises at least one processing unit and at least one memory. The at least one memory stores program instructions that, when executed by the at least one processing unit, cause the apparatus to process at least one image frame, select at least one region of interest from the at least one image frame, process at least two consecutive image frames to determine a motion field, segment the motion field into at least one motion cluster, select based on the at least one region of interest and the at least one motion cluster, the most relevant motion cluster, and adjust the exposure time based on motion information of the selected most relevant motion cluster.
25 Citations
20 Claims
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1. An apparatus, comprising:
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at least one processing unit; at least one memory, wherein the at least one memory stores program instructions that, when executed by the at least one processing unit, cause the apparatus to; process at least two consecutive image frames; select at least one region of interest from the at least two image frames based on the at least one region of interest having a salient object therein; process the at least one region of interest in the at least two image frames to determine a motion field; segment the motion field into a plurality of motion clusters; select, based on the at least one region of interest and the plurality of motion clusters, a most relevant motion cluster from the plurality of motion clusters, the most relevant motion cluster providing one of the following;
a greatest amount of movement among the plurality of motion clusters, or a least amount of movement among the plurality of motion clusters; andadjust an exposure time based on motion information of the selected most relevant motion cluster. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An apparatus, comprising:
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at least one processing unit; at least one memory, wherein the at least one memory stores program instructions that, when executed by the at least one processing unit, cause the apparatus to; process at least two consecutive image frames to determine a motion field; segment the motion field into different motion clusters based on motion values in the motion field; rank the motion clusters based on relevance of the motion; select a most relevant motion cluster based on a direction the most relevant motion cluster is moving; and adjust the exposure time based on motion information of the most relevant motion cluster.
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16. A method comprising:
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processing at least one image frame; selecting at least one region of interest from a first image frame; processing the first image frame and a second image frame to determine a motion field; segmenting the motion field into at least one motion cluster; selecting, based on the at least one region of interest and the at least one motion cluster, a most relevant motion cluster; and adjusting the exposure time based on motion information of the most relevant motion cluster. - View Dependent Claims (17, 18, 19, 20)
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Specification