Projector working time control method suitable for roller shutter exposure depth camera and application of projector working time control method

Abstract

The invention discloses a projector working time control method suitable for a roller shutter exposure depth camera, wherein the roller shutter exposure depth camera comprises at least one projector,at least one photosensitive module and at least one circuit board, the projector emits a light beam to a target object, and the light beam is received and processed by the photosensitive module; a photosensitive element of the photosensitive module is implemented as a roller shutter exposure photosensitive element, and the method comprises the following steps that the photosensitive module acquires at least one synchronization signal and at least one image data related to the target object, wherein the image data corresponds to the synchronization signal; the at least one processing unit calculates an automatic exposure time according to the image data; at least one control unit converts the automatic exposure time into a pulse signal; and the control unit controls the projector to work according to the pulse signal.

Description

technical field [0001] The present invention relates to an imaging field, in particular to a method for controlling the working time of a projector suitable for a rolling shutter exposure depth camera and its application, wherein the method for controlling the working time of a projector can control the working time of at least one projector to control The power consumption of the projector. Background technique [0002] As an important branch of artificial intelligence, machine vision is developing rapidly. Simply put, machine vision is to configure the machine so that the machine has the function of the human eye, and even makes the machine have a more powerful visual function than the human eye, so that the machine can intelligently replace the human eye to measure and judge the target object. Machine vision has a wide range of applications in many fields. For example, machine vision can be applied to automatic tracking and obstacle avoidance of aerial drones, VR (virtua...

AI Technical Summary

Problems solved by technology

[0006] In the rolling shutter exposure depth camera, since the rolling shutter exposure depth camera does not clearly give the exact time point when the exposure is started, so the projector can only be kept in a constant bright state, so that the photosensitive module can be guaranteed. The group can be exposed to obtain all image data, which makes the projector have a large power consumption that cannot be ignored

[0007] Based on power consumption considerations, the photosensitive modules currently used in infrared cameras or depth cameras on the market all use global exposure, but the cost of global exposure modules is usually higher than that of rolling shutter exposure photosensitive modules, which will increase the depth. camera production cost

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