FIELD: smartphone camera.
SUBSTANCE: method for automatically switching operating modes of a smartphone camera and other similar devices. The result is achieved by first capturing an image of the scene, including the target object to be tracked, in one of: close-range, long-range shooting modes, optionally, providing data from at least one of: depth sensors, motion sensors, providing at least one of: stereo data, image data in at least two consecutive frames in one of: close shooting mode, long shooting mode, when receiving stereo data: determine the disparity Dk of the scene including the target object captured by the camera based on the received stereo data at a certain moment of time for each current frame, determine the distance d1 from the camera to the target object and the measure of confidence R1 of the resulting disparity Dk based on the obtained stereo data, when receiving image data: calculate the field of motion vectors on the scene including the target object captured by the camera, calculate by at least one of: a shift factor, a rotation factor, a scene zoom factor, based on the calculated field of scene motion vectors, optionally initializing a tracker for the target object for the current frame, determining a distance d2 from the camera to the target object based on the zoom factor, and determine the measure of confidence R2, determine the distance d3 from the camera to the target object based on depth data using depth sensors and determine the measure of confidence R3, determine the distance d4 from the camera to the target object based on data from motion sensors and the measure of confidence R4, when initializing the tracker: determine the distance d5 and the confidence measure R5 and perform a hybrid estimate of the distance from the camera to the target object in the current frame based on the obtained distance values d1, d2, d3, d4, d5 from the camera to the target object and confidence measures R1, R2, R3, R4, R5, and the adjusted distance dh from the camera to the target object in the current frame is determined, then a decision is made to switch the camera to the close shooting mode or to the far shooting mode based on the adjusted distance dh.
EFFECT: reducing the time it takes for the camera to switch between modes, as well as increasing the accuracy of determining the shooting mode.
43 cl, 21 dwg
Title | Year | Author | Number |
---|---|---|---|
DEVICE AND METHOD FOR PREDICTION AUTOFOCUS FOR AN OBJECT | 2021 |
|
RU2778355C1 |
METHOD AND SYSTEM FOR AUTOMATICALLY FINDING THREE-DIMENSIONAL IMAGES | 2005 |
|
RU2315352C2 |
METHOD AND SYSTEM FOR ISOLATING FOREGROUND OBJECT IMAGE PROCEEDING FROM COLOUR AND DEPTH DATA | 2010 |
|
RU2426172C1 |
APPARATUS, METHOD AND COMPUTER PROGRAM FOR THREE-DIMENSIONAL VIDEO CODING | 2013 |
|
RU2611240C2 |
METHOD FOR PROCESSING THE SEQUENCE OF IMAGES FOR AUTOMATIC DETECTION OF TANKER AND EVALUATION OF ITS TRAJECTOR PARAMETERS FOR AIR REPLACEMENT AT THE BACKGROUND OF THE STARRY SKY | 2016 |
|
RU2624828C1 |
METHOD AND DEVICE FOR SUB-PIXEL REFINEMENT OF MOTION VECTORS | 2022 |
|
RU2803233C1 |
IMAGE CAPTURING EQUIPMENT AND CONTROL METHOD FOR IT | 2018 |
|
RU2762998C2 |
SYSTEM FOR CONSTRUCTING THREE-DIMENSIONAL SPACE MODEL | 2023 |
|
RU2812950C1 |
METHOD OF DISPLAYING ORIGINAL THREE-DIMENSIONAL SCENE BASED ON RESULTS OF CAPTURING IMAGES IN TWO-DIMENSIONAL PROJECTION | 2010 |
|
RU2453922C2 |
IMAGE CAPTURING HARDWARE AND CONTROL METHOD THEREOF | 2018 |
|
RU2741480C1 |
Authors
Dates
2023-12-06—Published
2023-03-27—Filed