71 lines
2.6 KiB
C
71 lines
2.6 KiB
C
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// Copyright 2020 The MediaPipe Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef MEDIAPIPE_FACE_GEOMETRY_LIBS_VALIDATION_UTILS_H_
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#define MEDIAPIPE_FACE_GEOMETRY_LIBS_VALIDATION_UTILS_H_
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#include "mediapipe/framework/port/status.h"
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#include "mediapipe/modules/face_geometry/protos/environment.pb.h"
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#include "mediapipe/modules/face_geometry/protos/face_geometry.pb.h"
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#include "mediapipe/modules/face_geometry/protos/geometry_pipeline_metadata.pb.h"
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#include "mediapipe/modules/face_geometry/protos/mesh_3d.pb.h"
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namespace mediapipe::face_geometry {
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// Validates `perspective_camera`.
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//
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// Near Z must be greater than 0 with a margin of `1e-9`.
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// Far Z must be greater than Near Z with a margin of `1e-9`.
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// Vertical FOV must be in range (0, 180) with a margin of `1e-9` on the range
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// edges.
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absl::Status ValidatePerspectiveCamera(
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const PerspectiveCamera& perspective_camera);
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// Validates `environment`.
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//
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// Environment's perspective camera must be valid.
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absl::Status ValidateEnvironment(const Environment& environment);
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// Validates `mesh_3d`.
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//
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// Mesh vertex buffer size must a multiple of the vertex size.
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// Mesh index buffer size must a multiple of the primitive size.
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// All mesh indices must reference an existing mesh vertex.
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absl::Status ValidateMesh3d(const Mesh3d& mesh_3d);
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// Validates `face_geometry`.
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//
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// Face mesh must be valid.
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// Face pose transformation matrix must be a 4x4 matrix.
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absl::Status ValidateFaceGeometry(const FaceGeometry& face_geometry);
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// Validates `metadata`.
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//
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// Canonical face mesh must be valid.
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// Procrustes landmark basis must be non-empty.
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// All Procrustes basis indices must reference an existing canonical mesh
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// vertex.
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// All Procrustes basis landmarks must have a non-negative weight.
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absl::Status ValidateGeometryPipelineMetadata(
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const GeometryPipelineMetadata& metadata);
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// Validates frame dimensions.
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//
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// Both frame width and frame height must be positive.
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absl::Status ValidateFrameDimensions(int frame_width, int frame_height);
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} // namespace mediapipe::face_geometry
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#endif // MEDIAPIPE_FACE_GEOMETRY_LIBS_VALIDATION_UTILS_H_
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