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ISP verifying test system and method of CMOS image sensor

An image sensor and verification test technology, applied in image communication, TV system components, color TV components, etc., to achieve high flexibility, solve the bottleneck of data transmission, and improve performance

Inactive Publication Date: 2007-06-27
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

The designed ISP function is verified by EDA software, but EDA software simulation can only verify whether the ISP function meets the design requirements

Method used

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  • ISP verifying test system and method of CMOS image sensor
  • ISP verifying test system and method of CMOS image sensor

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Embodiment Construction

[0021] A kind of ISP verification test system of CMOS image sensor, as shown in Figure 1, comprises ISP module 1, data transmission circuit 2 and control module 3; ISP module 1 and data transmission circuit 2 two-way transmission, data transmission circuit 2 and control module 3 Two-way transmission; ISP module 1 receives the original image data output by the CMOS image sensor, performs ISP processing, and then transmits it to the control module 3 for display through the data transmission circuit 2; the control module 3 changes the ISP parameters of the ISP module 1 through the transmission of the data transmission circuit 2.

[0022] The ISP module 1 and the data transmission circuit 2 perform bidirectional transmission through the two-wire serial control bus; the data transmission circuit 2 and the control module 3 perform bidirectional transmission through the two-wire serial control bus.

[0023] ISP module 1 adopts FPGA.

[0024] Data transmission circuit 2 comprises imag...

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Abstract

The invention discloses an ISP system for testing the sensor of CMOS images, which includes a ISP module, a data transmission circuit and a control module, among which: the ISP module and the data transmission circuit bidirectional transmit, the data transmission circuits and the control module bidirectional transmit. The ISP module receives the original image data from sensor of CMOS images then sends the data to the control module for displaying through data transmission circuit after ISP processing. The control module changes the ISP parameters of the ISP module through the data transmission circuit. The invention also discloses its testing method, which collects the output of sensor of CMOS images through ISP module, and directly changes the ISP parameters of ISP module according to the dynamic image display effect, and makes improvements at the same time.

Description

technical field [0001] The invention relates to an ISP verification test system and method of a CMOS image sensor. Background technique [0002] CMOS (Complementary Metal-Oxide Semiconductor, Complementary Metal-Oxide Semiconductor) image sensor, compared with traditional CCD (Charge Coupled Device, Charge Coupled Device) image sensor, has the characteristics of low power consumption and high integration, and has been widely used in mobile phones camera, car camera and other fields. [0003] Due to the high integration feature of the CMOS image sensor, an ISP (Image Signal Process, image signal processing) function is often integrated inside the chip. Due to the high cost of chip production, if the ISP function is found to have problems or even fail after production, it will bring huge economic losses. Therefore, the pre-production verification of chips is very critical. [0004] In the past, the verification before chip production was generally completed through the inte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/335H04N17/00H04N25/00
Inventor 李立王艳李坤
Owner BYD CO LTD
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