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Image transmission system and image transmission method

A technology for sending systems and images, applied in image communication, closed-circuit television systems, components of TV systems, etc., can solve problems such as stoppage and image delay

Active Publication Date: 2017-10-24
SONY SEMICON SOLUTIONS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is still the possibility that delays and stoppages in image transmission may occur

Method used

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  • Image transmission system and image transmission method
  • Image transmission system and image transmission method
  • Image transmission system and image transmission method

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0058] [Typical Configuration of Image Sending System]

[0059] Figure 5 is a block diagram showing a typical configuration of an image transmission system as the first embodiment of the present technology. Figure 5 The image transmission system includes cameras 101M, 101S-1, and 101S-2, a hub 102, a modem 103, a coaxial cable 104, and a CCU 105.

[0060] constitute Figure 5 The cameras 101M, 101S-1, and 101S-2, the hub 102, the modem 103, the coaxial cable 104, and the CCU 105 in the image transmission system are basically configured with and image 3 The cameras 11-1 to 11-3, the hub 12, the modem 13, the coaxial cable 14, and the CCU 15 of the image transmission system work in the same manner respectively.

[0061] It should be noted that the camera 101M generates a synchronization signal and sends it to the cameras 101S-1 and 101S-2. The cameras 101S-1 and 101S-2 each control the image signal output timing so that the I picture is output onto the coaxial cable 104 w...

no. 2 example

[0102] [Typical Configuration of Image Sending System]

[0103] Figure 11 is a block diagram showing a typical configuration of an image transmission system as the second embodiment of the present technology. Figure 11 The image transmission system includes cameras 201M, 201S-1, and 201S-2, a hub 202, a modem 203, a coaxial cable 204, and a CCU 205.

[0104] constitute Figure 11 The cameras 201M, 201S-1, and 201S-2, the hub 202, the modem 203, the coaxial cable 204, and the CCU 205 of the image transmission system in the image 3 The cameras 11-1 to 11-3, the hub 12, the modem 13, the coaxial cable 14, and the CCU 15 of the image transmission system work in the same manner respectively.

[0105] It should be noted that the camera 201M generates a selection signal and sends it to the cameras 201S-1 and 201S-2. The cameras 201S-1 and 201S-2 each control the image signal output timing so that an I picture is output to the coaxial cable 204 when a selection signal is receiv...

no. 3 example

[0134] [Typical Configuration of Image Sending System]

[0135] Figure 16 is a block diagram showing a typical configuration of an image transmission system as a third embodiment of the present technology. Figure 16 The image transmission system includes cameras 301 - 1 to 301 - 3 , a hub 302 , a modem 303 , a coaxial cable 304 , and a CCU 305 .

[0136] constitute Figure 16 The cameras 301-1 to 301-3, the network hub 302, the modem 303, the coaxial cable 304, and the CCU 305 of the image transmission system in the image 3 The cameras 11-1 to 11-3, the hub 12, the modem 13, the coaxial cable 14, and the CCU 15 of the image transmission system work in the same manner respectively.

[0137] It should be noted that upon receiving a selection signal from another camera, the cameras 301-1 to 301-3 each control image signal output to output an I picture onto the coaxial cable 304 while outputting a selection signal to the still camera.

[0138] Specifically, as Figure 17 A...

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PUM

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Abstract

The present invention relates to an image sending system and an image sending method. An image transmission system is disclosed, including: a plurality of cameras and a coaxial cable for transmitting image signals from the cameras, wherein: each of the cameras includes: an imaging module configured to image a subject by to obtain an image signal; an encoding module configured to compress and encode the image signal through intra-frame compression and inter-frame compression to generate an encoded signal; and a signal output module configured to output the encoded signal to the on a coaxial cable; and the camera of interest, when another of said cameras outputs said encoded signal obtained by intra-frame compression onto said coaxial cable, said coded signal obtained by inter-frame compression The signal is output onto the coaxial cable.

Description

technical field [0001] The present technology relates to an image transmission system and an image transmission method. More specifically, the present technology relates to an image transmission system and an image transmission method for preventing delay and stoppage of image transmission while reducing transmission load. Background technique [0002] Hitherto, most surveillance camera systems have a surveillance camera that obtains an image signal and transmits the image as an analog signal to a camera control unit (hereinafter referred to as a CCU) through a coaxial cable. This type of analog send setup has been used extensively. In a typical facility where a surveillance camera system is installed, cables are run in every corner of the site. [0003] In recent years, there has been a need to improve image quality through digitization. However, when it is necessary to replace densely-laid cables in a facility with new cables, the costs involved become very high. [00...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/18
CPCH04N7/181H04N23/662H04N23/66H04N23/661H04N23/00H04N19/00H04N19/156H04N19/177H04N7/06
Inventor 松本英之池田保成田哲也
Owner SONY SEMICON SOLUTIONS CORP