Self-adaptive precision and distance three-dimensional identification detection method and system, medium and computer equipment

The invention provides a precision and distance self-adaptive three-dimensional recognition detection method and system, a medium and computer equipment. The method comprises the following steps: acquiring a first target image, a first speckle pattern and a target distance of a recognition target; obtaining the first precision of the first target image and the first speckle density of the first speckle pattern; presetting image standard precision; detecting whether the first precision is higher than standard precision; when the first precision is higher than the standard precision, identifying the first target image and the first speckle pattern; when the first precision is lower than the standard precision, adaptively lightening the corresponding laser partition through an adjustable algorithm to obtain a second target image and a second speckle pattern of the recognition target; obtaining the second precision of the second target image and the second speckle density of the second speckle pattern; and identi