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Moving distance detecting method of image sensor

A technology of image sensor and detection method, which is applied in the direction of instruments, image enhancement, image data processing, etc., and can solve problems such as obtaining picture blocks and judgment errors

Inactive Publication Date: 2004-12-15
PIXART IMAGING INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

If the moving speed of the image sensor exceeds the range allowed by the hardware, the frame block with the same gray scale value as the frame block 22A cannot be obtained in the frame 20B, resulting in a judgment error

Method used

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  • Moving distance detecting method of image sensor
  • Moving distance detecting method of image sensor
  • Moving distance detecting method of image sensor

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Embodiment Construction

[0015] According to the method for detecting the amount of movement of the image sensor described in the embodiment of the present invention, the principle of the moving inertia of the object is used to determine the position of the captured frame block in the frame obtained by the image sensor, so as to increase the image sensing capacity. The range and speed of movement allowed by the device.

[0016] According to the principle of the object's moving inertia, the moving state of the image sensor can be predicted. When an image sensor moves at a given rate during a given time frame, it can be predicted to move in the same direction in the next given time frame; similarly, when its moving speed decreases, it can be predicted to change direction of movement.

[0017] As mentioned above, according to the method for detecting the moving amount of the image sensor according to the embodiment of the present invention, the allowed moving range and speed of the image sensor are auto...

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Abstract

A method for detecting the moving distance of image sensor includes such steps as taking the first picture region in the first picture, taking the first relative region in the second picture, detecting a particular shift direction of the first relative region relative to the first picture region, judging the moving distance and speed of the image senor according to the positions of the first picture region and the first relative region, taking the second picture region from the third picture if the moving speed of the image sensor is constant, taking the second relative region from the fourth picture, and judging the moving distance of the image sensor according to the second picture regino and the second relative region.

Description

technical field [0001] The present invention relates to a method for detecting the amount of movement of an image sensor, in particular to a specific part of the image frame of a first image captured by the image sensor at a first position and the movement of the image sensor to a second position. Compared with the second image captured by the position, after obtaining the same frame as the above-mentioned specific part of the image frame, judge the moving direction of the image sensor at this time, and determine the image sensor according to the moving direction of the image sensor The position of the specific part of the image frame of the third image captured at the third position is a method for detecting the movement amount of the image sensor to successfully determine the displacement amount of the image sensor. Background technique [0002] In the prior art, a block match method is used to determine the moving amount of the image sensor. The bl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T5/50
Inventor 林俊煌蓝正丰黄建章
Owner PIXART IMAGING INC