/**
 * @fileoverview Centralized constants for the AR Engine
 */
export declare const AR_CONFIG: {
    VIEWPORT_WIDTH: number;
    VIEWPORT_HEIGHT: number;
    DEFAULT_FOVY: number;
    DEFAULT_NEAR: number;
    DEFAULT_FAR: number;
    MAX_FEATURES_PER_BUCKET: number;
    USE_LSH: boolean;
    HAMMING_THRESHOLD: number;
    HDC_RATIO_THRESHOLD: number;
    INLIER_THRESHOLD: number;
    MIN_NUM_INLIERS: number;
    MAX_MATCH_QUERY_POINTS: number;
    CLUSTER_MAX_POP: number;
    TRACKER_TEMPLATE_SIZE: number;
    TRACKER_SEARCH_SIZE: number;
    TRACKER_SIMILARITY_THRESHOLD: number;
    MIN_IMAGE_PIXEL_SIZE: number;
    SCALE_STEP_EXPONENT: number;
    TRACKING_DOWNSCALE_LEVEL_1: number;
    TRACKING_DOWNSCALE_LEVEL_2: number;
    WARMUP_TOLERANCE: number;
    MISS_TOLERANCE: number;
    ONE_EURO_FILTER_CUTOFF: number;
    ONE_EURO_FILTER_BETA: number;
    USE_COMPACT_DESCRIPTORS: boolean;
    COMPACT_HAMMING_THRESHOLD: number;
};