Detection devices and methods for detecting regions of interest
First Claim
1. A detection device for detecting at least one region of interest (ROI) in a first frame captured by an image sensor:
- an image processing module to divide the first frame into a plurality of sub regions;
a calculation module to obtain a first vital-sign feature of a first sub region among the plurality of sub regions to generate a first feature signal; and
an identification module to receive the first feature signal and determine whether the first feature signal is a first valid image signal,wherein when the identification module determines the first feature signal is the first valid image signal, the identification module identifies the first sub region as a first ROI.
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Abstract
A detection method and a detection device for detection of at least one region of interest (ROI) using the same are provided. A plurality of successive frames is captured by an image sensor. A first frame among the plurality of successive frames is divided into a plurality of sub regions. A first vital-sign feature of a first sub region among the plurality of sub regions is obtained. A first feature signal is generated according to the first vital-sign feature. Whether the first feature signal is a first valid image signal is determined. When it is determined that the first feature signal is a first valid image signal, the first sub region is identified as a first ROI. In the frames occurring after the first frame, the first ROI is tracked.
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Citations
20 Claims
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1. A detection device for detecting at least one region of interest (ROI) in a first frame captured by an image sensor:
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an image processing module to divide the first frame into a plurality of sub regions; a calculation module to obtain a first vital-sign feature of a first sub region among the plurality of sub regions to generate a first feature signal; and an identification module to receive the first feature signal and determine whether the first feature signal is a first valid image signal, wherein when the identification module determines the first feature signal is the first valid image signal, the identification module identifies the first sub region as a first ROI. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A detection method for detecting at least one region of interest (ROI):
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capturing a plurality of successive frames; dividing a first frame among the plurality of successive frames into a plurality of sub regions; obtaining a first vital-sign feature of a first sub region among the plurality of sub regions generating a first feature signal according to the first vital-sign feature; determining whether the first feature signal is a first valid image signal; when it is determined that the first feature signal is the first valid image signal, identifying the first sub region as a first ROI; and tracking the first ROI in the frames occurring after the first frame. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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20. An image tracking apparatus comprising:
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an image sensor to capture a plurality of successive frames; a detection device to perform a detection operation on the successive frames by dividing one frame into a plurality of sub regions, obtain at least one vital-sign feature of at least one sub region among the plurality of sub regions to generate at least one feature signal, and determine whether the at least one feature signal is valid, wherein when the detection device determines that the at least one feature signal is valid, the detection device identifies the at least one sub region as a region of interest (ROI); and a tracking module to track the ROI in the frames occurring after the one frame.
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Specification