Monitoring camera with 360-degree field angle
A field of view and camera technology, applied to color TV parts, TV system parts, TVs, etc., can solve problems such as inability to guarantee image quality, large image distortion, etc.
Active Publication Date: 2013-03-27
GUANGZHOU JINGHUA PRECISION OPTICS CO LTD
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[0002] At present, ultra-wide-angle lenses or cup-shaped reflection lenses are mostly used to realize 360-degree full-field monitoring, but the image output by such lenses is very deformed, and the basic image quality cannot be guaranteed even after computer correction; in order to obtain higher quality 360-degree high-resolution images, and to achieve timely processing, so it is necessary to adopt a more favorable method under the premise that the current technology can achieve
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[0018] Such as figure 1 As shown, the monitoring camera with a 360-degree field of view of the present invention includes n cameras 1 with the same optical magnification arranged in the circumferential direction, wherein n is a natural number, n≥2, such as figure 2 As shown, each camera 1 includes a lens, a sensor for imaging, and a microcontroller for configuring and controlling the sensor, that is, the imaging parameters are adjusted by the microcontroller, such as brightness and contrast. Here, as figure 2 shown, the microcontroller can pass the I 2 The data (mainly the imaging parameters mentioned above) is transmitted between the C bus and the sensor, and the microcontroller outputs a control signal CTR to control the working state of the sensor, such as starting and resetting. The monitoring camera also includes a main controller 2, which can adopt a DSP (Digital Signal Processor), and the main controller 2 communicates with the microcontrollers of all cameras to send...
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The invention discloses a monitoring camera with a 360-degree field angle. The monitoring camera comprises n cameras and a master controller, wherein the n cameras are circumferentially distributed, and have the same optical power; the master controller provides a uniform starting control signal for the video data output of all sensors and a uniform pixel reference clock signal for own pixel clock signal generation of each sensor; video signals output by the sensors are synchronized and spliced by a synchronizer to form video spliced output signals; the synchronizer comprises memories configured in one-to-one correspondence with the cameras, writing control modules configured in one-to-one correspondence with the memories, a reading control module and an output selection module; each memory has dual asynchronous ports for asynchronously performing reading and writing operations; and the output selection module reads one line of each sensor out in a line period under the control of the reading control module, and splices the read-out line into a new line. The monitoring camera provided by the invention reduces requirements on the sensors, and can instantly obtain a panoramic image with high fidelity without subsequent complex processing.
Description
technical field [0001] The invention relates to camera equipment, in particular to a monitoring camera with a multi-camera and a 360-degree field of view. Background technique [0002] At present, ultra-wide-angle lenses or cup-shaped reflection lenses are mostly used to realize 360-degree full-field monitoring, but the image output by such lenses is very deformed, and the basic image quality cannot be guaranteed even after computer correction; in order to obtain higher quality 360-degree High-resolution images, and to achieve timely processing, so it is necessary to adopt a more favorable method under the premise that the current technology can achieve. Contents of the invention [0003] The purpose of the present invention is to provide a monitoring camera with higher image quality capable of 360-degree shooting. [0004] The technical solution adopted by the present invention is: a monitoring camera with a 360-degree field of view, including n cameras with the same opt...
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IPC IPC(8): H04N7/18H04N5/262
Inventor 夏登海
Owner GUANGZHOU JINGHUA PRECISION OPTICS CO LTD