A relocalization method in a camera pose tracking process, applied to an electronic device having a camera, the electronic device being configured to sequentially perform camera pose tracking on a plurality of anchor images, the method comprises: obtaining a current image acquired by the camera after an i th anchor image in the plurality of anchor images, i being greater than 1, wherein the anchor image is used for feature point tracking on a subsequently acquired image relative to the anchor image; obtaining an initial feature point and an initial pose parameter in a first anchor image in the plurality of anchor images in a case that the current image satisfies a relocalization condition, wherein the first anchor image is an image being first determined to be the anchor image among the plurality of anchor images, and the relocalization condition comprises: a tracking process of the current image relative to the i th anchor image fails, or an accumulated error in historical tracking processes before a tracking process of the current image relative to the i th anchor image is greater than a preset condition; performing feature point tracking on the current image relative to the initial feature point in the first anchor image, to obtain a plurality of matching feature point pairs; filtering the plurality of matching feature point pairs according to a constraint condition, to obtain a filtered matching feature point pair, wherein the constraint condition comprises at least one of the following conditions: a target feature point is a feature point that uniquely matches the initial feature point; the initial feature point and a target feature point satisfy an Epipolar constraint; or a target feature point is a feature point with the highest matching degree in a raster area, and the raster area is an area obtained after the current image is rasterized; calculating a pose change amount of the camera from the initial pose parameter to a target pose parameter according to the filtered matching feature point pair; and performing relocalization according to the initial pose parameter and the pose change amount to obtain the target pose parameter of the camera. obtaining a current image acquired by the camera after an i th anchor image in the plurality of anchor images, i being greater than 1, wherein the anchor image is used for feature point tracking on a subsequently acquired image relative to the anchor image; obtaining an initial feature point and an initial pose parameter in a first anchor image in the plurality of anchor images in a case that the current image satisfies a relocalization condition, wherein the first anchor image is an image being first determined to be the anchor image among the plurality of anchor images, and the relocalization condition comprises: a tracking process of the current image relative to the i th anchor image fails, or an accumulated error in historical tracking processes before a tracking process of the current image relative to the i th anchor image is greater than a preset condition; performing feature point tracking on the current image relative to the initial feature point in the first anchor image, to obtain a plurality of matching feature point pairs; filtering the plurality of matching feature point pairs according to a constraint condition, to obtain a filtered matching feature point pair, wherein the constraint condition comprises at least one of the following conditions: a target feature point is a feature point that uniquely matches the initial feature point; the initial feature point and a target feature point satisfy an Epipolar constraint; or a target feature point is a feature point with the highest matching degree in a raster area, and the raster area is an area obtained after the current image is rasterized; calculating a pose change amount of the camera from the initial pose parameter to a target pose parameter according to the filtered matching feature point pair; and performing relocalization according to the initial pose parameter and the pose change amount to obtain the target pose parameter of the camera.