Image processing apparatus
First Claim
1. An image processing apparatus comprising a video camera for shooting an object, a memory for storing an image signal supplied from said video camera, and a CPU for performing prescribed processing on said image signal read out of said memory, wherein said image processing apparatus includes selective writing means for selecting, in accordance with a select command from said CPU, only a designated portion of said image signal supplied from said video camera, and for writing only said selected portion as a selected image signal into said memory.
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Abstract
The invention provides an image processing apparatus that can reduce the memory capacity of a memory forming part of the image processing apparatus and can correct the optical axis misalignment of a video camera in a simple manner. The image processing apparatus 10, which comprises a video camera 11, a memory 13 for storing an image signal supplied from the video camera, and a CPU 14 for performing prescribed processing on the image signal read out of the memory, includes a selective writing means 12 for selecting only a designated portion of the image signal in accordance with a select command C from the CPU, and for writing only the selected portion as a selected image signal S′ into the memory 13. The image processing apparatus further includes a switching means for selecting the pixel data to be stored in the memory by switching between high-density pixel data covering a designated range centralized in a horizontal direction of the image and relatively low-density pixel data covering a full image range. The switching means is capable of switching in accordance with vehicle speed.
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Citations
21 Claims
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1. An image processing apparatus comprising a video camera for shooting an object, a memory for storing an image signal supplied from said video camera, and a CPU for performing prescribed processing on said image signal read out of said memory, wherein
said image processing apparatus includes selective writing means for selecting, in accordance with a select command from said CPU, only a designated portion of said image signal supplied from said video camera, and for writing only said selected portion as a selected image signal into said memory.
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9. An image processing apparatus which stores pixel data from an imaging device into a memory, and obtains an image by processing said stored pixel data, comprising:
switching means for selecting the pixel data to be stored in said memory by switching between high-density pixel data covering a designated range centralized in a horizontal direction of said image and relatively low-density pixel data covering a full image range. - View Dependent Claims (10, 11, 12, 16, 18, 19)
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13. An image processing apparatus which stores pixel data from an imaging device into a memory, and obtains an image by processing said stored pixel data, wherein
high-density pixel data is taken from a designated range centralized in a horizontal direction of said image, and relatively low-density pixel data from the remaining range, and said taken pixel data are stored in said memory.
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14. An image processing apparatus which stores pixel data from an imaging device into a memory, and obtains an image by processing said stored pixel data, wherein
relatively low-density pixel data is taken from a designated range centralized in a horizontal direction of said image, and high-density pixel data from the remaining range, and said taken pixel data are stored in said memory.
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15. An image processing apparatus which stores pixel data from an imaging device into a memory, and obtains an image by processing said stored pixel data, comprising:
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first means for taking high-density pixel data from a designated range centralized in a horizontal direction of said image and relatively low-density pixel data from the remaining range;
second means for taking relatively low-density pixel data from said designated range centralized in the horizontal direction of said image and high-density pixel data from the remaining range; and
switching means for selecting the pixel data to be stored in said memory by switching between the pixel data taken out by said first means and the pixel data taken out by said second means.
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17. An image processing apparatus which stores pixel data from an imaging device into a memory, and obtains an image by processing said stored pixel data, comprising:
means for splitting said image between left and right ranges in a horizontal direction thereof, and for taking high-density pixel data only from one of said ranges and storing said high-density pixel data in said memory.
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20. An image processing apparatus which stores pixel data from an imaging device into a memory, and obtains an image by processing said stored pixel data, comprising:
means for setting a prescribed range in a horizontal direction of said image, and for taking high-density pixel data from said prescribed range and relatively low-density pixel data from the remaining range and storing said taken pixel data in said memory. - View Dependent Claims (21)
Specification