Chengdu Xgimi Technology Co., Ltd.

Zhong Ning

Xin Wang

Bo Zhong

Shi Xiao

The present disclosure relates to the technical field of compensation for projection thermal defocusing, and the embodiments specifically disclose a bidirectional compensation method and apparatus for projection thermal defocusing, and a readable storage medium. The bidirectional compensation method for projection thermal defocusing provided in the present disclosure comprises determining whether to proceed to a definition value determination step according to whether a similarity value of two latest projected picture images satisfies a preset similarity value requirement; by means of the method of proceeding to first-direction thermal defocusing compensation or second-direction thermal defocusing compensation by comparing the magnitude of definition values of the latest two projected picture images, non-perception compensation for projection thermal defocusing is achieved, without using a specified compensation direction and a specific focusing map, and a compensation effect is achieved by means of real-time analysis of projected pictures, the operation being convenient and suitable for widespread popularization.

Bidirectional compensation method and apparatus for projection thermal defocusing, and readable storage medium

The disclosure relates to the technical field of projection auto-focusing, and embodiments particularly disclose a projection focusing method, a projection focusing apparatus, a projector, and a readable storage medium. According to the projection focusing method provided by this application, an initial position of a focused motor is roughly determined based on a current projection distance, a focusing direction is determined according to the current projection distance and a projection distance corresponding to the current motor position, a position of a clearest projection picture can be found by traversing a few motor positions, and the speed and precision of projection focusing are greatly increased.

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Sichuan, China

Zhong Ning