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Method for transmitting multi-camera data

A multi-camera, data transmission technology, applied in simultaneous/sequential multi-TV signal transmission, image communication, TV, etc., can solve the problem of receiving data disorder and achieve the effect of simple operation

Pending Publication Date: 2021-10-26
北京君正集成电路股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. Each ISP Channel can only transmit and receive a single Camera data
[0005] 2. The actual transmitted data must be consistent with the configured received data parameters, otherwise the received data will be confused

Method used

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  • Method for transmitting multi-camera data
  • Method for transmitting multi-camera data
  • Method for transmitting multi-camera data

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Experimental program
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Embodiment approach

[0044] Usually connecting a camera needs to occupy an ISP or an ISP Channel. When transferring the data collected by a camera to the CPU, the camera needs to be connected to the built-in ISP module of the CPU. When connecting two cameras, two ISPs or the same ISP are required. Two Channels, and transmit the image data collected by the corresponding Camera through these Channels.

[0045] For example, each Channel will configure the image data format (resolution / frame rate / image format) to be received in advance before transmitting data. This purpose is to calculate the data throughput per second, for example:

[0046] Such as figure 2 As shown, 720p / 60 frames / YUV422 format data throughput = 1280x 720x 60x 2 = 110592000Bytes = 105.46875MBytes

[0047] The numerical meanings of the above formulas:

[0048] 1280x 720: resolution (number of pixels)

[0049] 60: number of frames

[0050] 2: YUV422 format occupies two bytes of storage space per pixel

[0051] Each frame size: ...

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Abstract

The invention provides a method for transmitting multi-camera data, which comprises the following steps of: S1, configuring image data format parameters of N cameras to be received in advance before single ISP Channel data transmission so as to calculate data throughput per second, N being a natural number greater than or equal to 2, and data throughput per second = resolution * frame number * byte number of storage space occupied by each pixel in the image format; S2, splicing the image data collected by the N cameras together in sequence, and improving the resolution of the received image data in the step S1, so that the final actual transmission resolution = the resolution of each camera * N; S3, after image data format parameters of transmission data are configured, starting transmission, and enabling the N cameras to transmit the data through a single ISP Channel; and S4, enabling a processor to receive the image data transmitted by the N cameras. The invention aims to solve the problem that a single channel can only transmit single Camera data, so that a single ISP Channel can transmit multi-camera data.

Description

technical field [0001] The invention relates to the field of image capture, in particular to a method for transmitting multi-camera data. Background technique [0002] With the rapid development of computer technology, especially in the field of image capture, camera devices are becoming increasingly demanded, especially camera devices that require multiple cameras. Usually connecting a camera (Camera) needs to occupy an ISP or an ISP Channel (channel). When transferring the data collected by a Camera to the processor (CPU), it is necessary to connect the Camera to the ISP module built in the CPU, and connect two Cameras. Two ISPs or two Channels occupying the same ISP are required, and the image data collected by the corresponding Camera is transmitted through these Channels. Such as figure 1 As shown, each Camera uses its own exclusive ISP Channel to transmit the collected image data. [0003] But the shortcoming of prior art is: [0004] 1. Each ISP Channel can only t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/08
CPCH04N7/0806
Inventor 赵佳康
Owner 北京君正集成电路股份有限公司
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