Remote device and power saving method of interactive system
First Claim
Patent Images
1. A remote device, comprising:
- an image sensor configured to successively capture a first image and a second image containing at least one reference beacon image, and capture a pretreatment image containing the at least one reference beacon image before capturing the first image;
a readout circuit configured to read first image data of the first image and second image data of the second image from the image sensor, and read image data of partial rows of the pretreatment image from the image sensor; and
a processing unit configured to calculate an image feature of the at least one reference beacon image according to the first image data and control the readout circuit to read only the second image data of a range of interest in the second image according to the image feature, wherein the range of interest is smaller than the second image.
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Abstract
A remote device includes an image sensor, a readout circuit and a processing unit. The image sensor successively captures a first image and a second image containing at least one reference beacon image. The readout circuit is configured to read first image data of the first image and second image data of the second image from the image sensor. The processing unit is configured to calculate an image feature of the at least one reference beacon image according to the first image data and control the readout circuit to only read the second image data of a range of interest in the second image according to the image feature. There is further provided a power saving method of an interactive system.
20 Citations
20 Claims
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1. A remote device, comprising:
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an image sensor configured to successively capture a first image and a second image containing at least one reference beacon image, and capture a pretreatment image containing the at least one reference beacon image before capturing the first image; a readout circuit configured to read first image data of the first image and second image data of the second image from the image sensor, and read image data of partial rows of the pretreatment image from the image sensor; and a processing unit configured to calculate an image feature of the at least one reference beacon image according to the first image data and control the readout circuit to read only the second image data of a range of interest in the second image according to the image feature, wherein the range of interest is smaller than the second image. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A power saving method of an interactive system, comprising:
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successively capturing, using an image sensor, a pretreatment image and a first image containing at least one reference beacon image; reading, using a readout circuit, image data of partial rows of the pretreatment image; determining, using a processing unit, a first range of interest according to the at least one reference beacon image in the image data of partial rows of the pretreatment image; reading, using the readout circuit, only first image data of the first range of interest in the first image; and calculating, using the processing unit, an image feature of the at least one reference beacon image according to the first image data. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A power saving method of an interactive system, comprising:
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sequentially capturing, using an image sensor, a first image and a second image containing at least one reference beacon image; reading, using a readout circuit, all image data of the first image; calculating, using a processing unit, an image feature of the at least one reference beacon image according to the all image data of the first image; and controlling, using the processing unit, the readout circuit to read image data of a range of interest in the second image according to the image feature and read image data of partial rows of the second image outside the range of interest, wherein the range of interest is smaller than the second image. - View Dependent Claims (18, 19)
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20. A remote device, comprising:
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an image sensor configured to successively capture a first image and a second image containing at least one reference beacon image; a readout circuit configured to read first image data of the first image and second image data of the second image from the image sensor; and a processing unit configured to calculate an image feature of the at least one reference beacon image according to the first image data, and control the readout circuit to read the second image data of a range of interest in the second image according to the image feature and read the second image data of partial rows of the second image outside the range of interest, wherein the range of interest is smaller than the second image.
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Specification