Image transmitter
First Claim
1. An image transmitter for compressing image data and transmitting the image data to a receiver via a transmission path, wherein the image data at least contains i pixel values of pixels arranged in line along a single direction, each pixel value being expressed in n bits, the image transmitter comprising:
- a blocking section for taking every p pixel values among the i pixel values in the image data to form a data block, and sequentially outputting a plurality of said data blocks each including the p pixel values;
a data compression section for reducing an amount of data from each data block outputted from the blocking section to output a compressed block; and
a data sending section for sending the compressed block outputted from the data compression section onto the transmission path, wherein i, n, and p are predetermined natural numbers.
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0 Petitions
Accused Products
Abstract
There is provided a transmitter which is capable of compressing incoming image with a relatively small delay time and transmitting the compressed image data to a receiver. Image data TD contains at least i pixel values of pixels arranged in line along a single direction, each pixel value being expressed in n bits. A transmitter Tx for compressing such image data and transmitting the image data to a receiver Rx via a transmission path N comprises a blocking section 1, a data compression section 2, and a data sending section 3. The blocking section 1 takes every p pixel values among the i pixel values in the image data to form a data block, and sequentially outputs a plurality of said data blocks DB each including the p pixel values. The data compression section 2 reduces an amount of data from each data block DB outputted from the blocking section 1 and thereby outputs a compressed block CBr. The data sending section 3 sends the compressed block CBr outputted from the data compression section 2 onto the transmission path N.
31 Citations
23 Claims
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1. An image transmitter for compressing image data and transmitting the image data to a receiver via a transmission path,
wherein the image data at least contains i pixel values of pixels arranged in line along a single direction, each pixel value being expressed in n bits, the image transmitter comprising: -
a blocking section for taking every p pixel values among the i pixel values in the image data to form a data block, and sequentially outputting a plurality of said data blocks each including the p pixel values;
a data compression section for reducing an amount of data from each data block outputted from the blocking section to output a compressed block; and
a data sending section for sending the compressed block outputted from the data compression section onto the transmission path, wherein i, n, and p are predetermined natural numbers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A driving assistant system for assisting in the driving of a vehicle, the system comprising:
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a transmission path;
a plurality of image capturing devices each of which is fixed on the vehicle and which captures an image of surroundings of the vehicle and outputs captured image data;
a plurality of image processing sections each of which is provided following the image capturing device and which performs a clipping process for the captured image data outputted from the respective preceding image capturing device to generate partial image data, wherein each partial image data at least contains i pixel values of pixels arranged in line along a single direction, each pixel value being expressed in n bits; and
a plurality of transmitters each of which is provided following an associated one of the plurality of image processing sections, wherein each transmitter comprises;
a blocking section for taking every p pixel values among the i pixel values in the partial image data from the associated image processing section to form a data block, and sequentially outputting a plurality of said data blocks each including the p pixel values;
a data compression section for reducing an amount of data from each data block outputted from the blocking section to output a compressed block; and
a data sending section for sending the compressed block outputted from the data compression section onto the transmission path, wherein the system further comprises;
a receiver for receiving and decompressing each compressed block from the transmission path, restoring each data block, and reproducing the respective partial image data;
an image synthesis section for performing a synthesis process for the partial image data from the receiver and outputting merged image data, the merged image data representing an image in which images represented by the respective partial image data are synthesized; and
a display section for displaying the image represented by the merged image data outputted from the image synthesis section, wherein i, n, and p are predetermined natural numbers.
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20. A remote control system for exerting an action on an object via remote control, the system comprising:
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a transmission path;
an image capturing device which is provided in a neighborhood of the object and which captures an image of surroundings of the object and outputs captured image data, wherein the captured image data at least contains i pixel values of pixels arranged in line along a single direction, each pixel value being expressed in n bits; and
a transmitter wherein the transmitter comprises;
a blocking section f or taking every p pixel values among the i pixel values in the captured image data from the image capturing device to form a data block, and sequentially outputting a plurality of said data blocks each including the p pixel values;
a data compression section for reducing an amount of data from each data block outputted from the blocking section to output a compressed block; and
a data sending section for sending the compressed block outputted from the data compression section onto the transmission path, wherein the system further comprises;
a receiver for receiving and decompressing each compressed block from the transmission path, restoring each data block, and reproducing the captured image data;
a display section for displaying the image represented by the captured image data outputted from the receiver for viewing by an operator;
a control data generation section for generating and outputting control data for exerting an action on the object in accordance with control made by the operator; and
a control data sending section for sending control data from the control data generation section onto the transmission path;
a control data receiving section for receiving and outputting the control data from the transmission path; and
a manipulator section for exerting the action on the object in accordance with the control data received from the control data receiving section, wherein i, n, and p are predetermined natural numbers.
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21. An image compression method for incorporation in a transmitter for compressing image data and transmitting the image data to a receiver via a transmission path,
wherein the image data at least contains i pixel values of pixels arranged in line along a single direction, each pixel value being expressed in n bits, the method comprising: -
a blocking step of taking every p pixel values among the i pixel values in the image data to form a data block, and sequentially outputting a plurality of said data blocks each including the p pixel values;
a data compression step of reducing an amount of data from each data block outputted in the blocking step to output a compressed block; and
a data sending step of sending the compressed block outputted in the data compression step onto the transmission path, wherein i, n, and p are predetermined natural numbers. - View Dependent Claims (22, 23)
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Specification