Method and apparatus for displaying image on head-mounted display device, device, and medium

A method for displaying an image on a head-mounted display device, comprising:

• in response to satisfying one of conditions, determining that a target operating mode adapted to the head-mounted display device at a current time is a first preset operating mode, the conditions comprising:
• three angular velocities of a three-axis angular velocity of the head-mounted display device in a reference coordinate system at the current time being all less than or equal to corresponding angular velocity thresholds, and a target operating mode corresponding to a previous historical time relative to the current time being the first preset operating mode;
• and receiving a reset command input by a user;
• and
• determining a first target orientation as an orientation for processing a display image of the head-mounted display device at the current time, wherein the first target orientation comprises at least one of the following three items:
• a fixed orientation in a device coordinate system of the head-mounted display device, a corrected orientation in the device coordinate system at the current time, and an orientation used for processing a display image of the head-mounted display device at the previous historical time relative to the current time.

A method for displaying an image on a head-mounted display device, the method comprising:

• in response to at least one angular velocity of a three-axis angular velocity of the head-mounted display device in a reference coordinate system being greater than a corresponding angular velocity threshold during a time period with the current time as an ending time, determining a target operating mode corresponding to a current time as a second preset operating mode;
• determining a second target orientation in a reference coordinate system as an orientation for processing a display image of the head-mounted display device at the current time, wherein the second target orientation is determined based on an orientation error between a first estimated orientation and a second estimated orientation, wherein the first estimated orientation is an estimated orientation of the head-mounted display device in the reference coordinate system at the current time;
• and the second estimated orientation is an estimated orientation of the head-mounted display device in the reference coordinate system at a target historical time, the target historical time being a historical time that is closest to the current time among historical times at which a corresponding target operating mode is the first preset operating mode;
• and
• based on the orientation for processing the display image of the head-mounted display device at the current time, processing the display image of the head-mounted display device, to display an image through the head-mounted display device.