Device, method and chip and cell phone for realizing image data collection

Abstract

A device for realizing image data collection provided by the present invention includes: an image input interface for receiving input image data; a FIFO unit for temporarily storing image data; a FIFO control unit for storing image data in the FIFO unit, and according to the bus Read out the image data in an idle situation, thereby completing the clock domain conversion; the channel controller reads the image data from the FIFO unit, and selects a suitable channel for the transmission of the image data; the advanced high-performance bus master interface transfers the image data Through the advanced high-performance bus output; the register file controls and selects the functions of the image input interface, the FIFO unit, the FIFO controller unit and the channel controller; the advanced high-performance bus slave interface controls the Registers in the register file are configured. In addition, the invention also provides a method for realizing image data collection, which is integrated with a chip for realizing the image data collection device and a mobile phone equipped with the chip.

Description

technical field [0001] The present invention relates to image processing technology, specifically, relates to a kind of video interface device in Camera (camera head) and its realization method. Background technique [0002] At present, more and more mobile phones begin to support the camera function, and the camera processing unit architecture of the mobile phone system generally includes an image processing subsystem and an image sensor SOC (System On Chip, System On Chip) chip. [0003] The image sensor SOC chip generally integrates image sensor, image raw data processing (such as conversion between RGB and YUV, Y / C stretching, γ correction, etc.), image output format adjustment, etc. In addition, the image sensor SOC chip also provides video Interface, which outputs digital images according to a certain video protocol. [0004] The image processing subsystem is required to complete the receiving and processing of Camera image data, which includes an image data interface...

AI Technical Summary

Problems solved by technology

The video interface collects the image data output by the image sensor (Camera Sensor), and transmits the image data to the image processing subsystem according to a certain data format and bus transmission specification, and this technical solution is highly dependent on the microprocessor and needs to rely on Software or DMA (direct memory access) method to accept image data, so the bus load is heavy, the real-time processing ability is not strong, resulting in slow processing speed, in addition, the maximum pixel that can accept the image is also limited, and only a few types can be accepted The camera has poor applicability and high power consumption

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