Multiple-View Processing in Wide-Angle Video Camera
First Claim
Patent Images
1. A video camera comprising:
- a wide-angle optical system configured to receive an optical image;
a high-resolution image sensor coupled to the optical system and configured to convert the optical image to an electronic image;
an image processing circuit coupled to the image sensor and configured to receive and process the electronic image, one of its tasks being to correct optical distortion through reference to a table of parameters specific to a combination of the optical system and the image sensor on one or more regions of interest of the captured said electronic image;
a control circuit coupled to said image processing circuit and configured to receive movement and zoom commands to transmit a signal to said image processing circuit relating the movement and zoom commands specific to at least one region of interest in said electronic image, wherein the region of interest includes at least a portion anywhere within said electronic image; and
an output circuit coupled to said image processing circuit capable of outputting in a plurality of electronic signal formats.
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Abstract
A motion video camera that removes the need for mechanical pan, tilt, and zoom apparatus is disclosed. The video camera includes the following. A wide-angle optical system is configured to receive an optical image. An image sensor is coupled to the optical system and is configured to convert the optical image to an electronic image. An image processing circuit is coupled to the image sensor and is configured to receive the electronic image and to execute movement and zoom operations by correcting distortions in the electronic image introduced by the wide-angle optical system and image sensor.
51 Citations
30 Claims
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1. A video camera comprising:
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a wide-angle optical system configured to receive an optical image; a high-resolution image sensor coupled to the optical system and configured to convert the optical image to an electronic image; an image processing circuit coupled to the image sensor and configured to receive and process the electronic image, one of its tasks being to correct optical distortion through reference to a table of parameters specific to a combination of the optical system and the image sensor on one or more regions of interest of the captured said electronic image; a control circuit coupled to said image processing circuit and configured to receive movement and zoom commands to transmit a signal to said image processing circuit relating the movement and zoom commands specific to at least one region of interest in said electronic image, wherein the region of interest includes at least a portion anywhere within said electronic image; and an output circuit coupled to said image processing circuit capable of outputting in a plurality of electronic signal formats. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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2-11. -11. (canceled)
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19. A video camera comprising:
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at least one image sensor coupled to an optical system capturing a distorted image to convert the optical image into an electronic image; an image processing circuit coupled to the at least one image sensor receiving and processing the electronic image to correct the distorted image via factors specific to the combined optical system and at least one image sensor on one or more regions of interest of the electronic image, wherein movement and zoom commands specific to at least one region of interest anywhere within the image are executed to produce at least one zoomed electronic image while maintaining visibility of the full electronic image; a control circuit coupled to said image processing circuit; and an output circuit coupled to the image processing circuit. - View Dependent Claims (20, 21, 22, 23)
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24. A method for operating a video camera system, comprising the steps of:
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receiving a distorted wide-angle optical image converted into an electronic signal of image frames at an image processing circuit; processing the image frames to correct wide-angle optical distortion, which includes one or more regions of interest within the image frames, wherein view commands specific to the one or more regions of interest are executed via manipulating the image frame data to produce an electronic image frame for each of the one or more regions of interest anywhere within the full electronic image frame while maintaining visibility of the full electronic image frame; and outputting a plurality of electronic image frames to a coupled base station corresponding to each of the one or more regions of interest and the full electronic image. - View Dependent Claims (25, 26, 27, 28, 29, 30)
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Specification