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Added pose landmarker result helpers

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This commit is contained in:
Prianka Liz Kariat 2023-10-21 03:52:46 +05:30
parent 8fc3a0473f
commit c4315c500d
4 changed files with 205 additions and 1 deletions
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2
mediapipe/tasks/ios/vision/pose_landmarker/sources/MPPPoseLandmarkerResult.h
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@ -46,7 +46,7 @@ NS_SWIFT_NAME(PoseLandmarkerResult)
*/
- (instancetype)initWithLandmarks:(NSArray<NSArray<MPPNormalizedLandmark *> *> *)landmarks
worldLandmarks:(NSArray<NSArray<MPPLandmark *> *> *)worldLandmarks
segmentationMasks:(NSArray<MPPMask *> *)segmentationMasks
segmentationMasks:(nullable NSArray<MPPMask *> *)segmentationMasks
timestampInMilliseconds:(NSInteger)timestampInMilliseconds NS_DESIGNATED_INITIALIZER;
- (instancetype)initWithTimestampInMilliseconds:(NSInteger)timestampInMilliseconds NS_UNAVAILABLE;

17
mediapipe/tasks/ios/vision/pose_landmarker/utils/BUILD
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@ -36,3 +36,20 @@ objc_library(
"//mediapipe/tasks/ios/vision/pose_landmarker:MPPPoseLandmarkerOptions",
],
)
objc_library(
name = "MPPPoseLandmarkerResultHelpers",
srcs = ["sources/MPPPoseLandmarkerResult+Helpers.mm"],
hdrs = ["sources/MPPPoseLandmarkerResult+Helpers.h"],
copts = [
"-ObjC++",
"-std=c++17",
"-x objective-c++",
],
deps = [
"//mediapipe/framework:packet",
"//mediapipe/framework/formats:image",
"//mediapipe/framework/formats:landmark_cc_proto",
"//mediapipe/tasks/ios/components/containers/utils:MPPLandmarkHelpers",
"//mediapipe/tasks/ios/vision/pose_landmarker:MPPPoseLandmarkerResult",
],
)

65
mediapipe/tasks/ios/vision/pose_landmarker/utils/sources/MPPPoseLandmarkerResult+Helpers.h Normal file
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@ -0,0 +1,65 @@
// Copyright 2023 The MediaPipe Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#import "mediapipe/tasks/ios/vision/pose_landmarker/sources/MPPPoseLandmarkerResult.h"
#include "mediapipe/framework/formats/image.h"
#include "mediapipe/framework/formats/landmark.pb.h"
#include "mediapipe/framework/packet.h"
NS_ASSUME_NONNULL_BEGIN
static const int kMicroSecondsPerMilliSecond = 1000;
@interface MPPPoseLandmarkerResult (Helpers)
/**
* Creates an `MPPPoseLandmarkerResult` from landmarks, world landmarks and segmentation mask
* packets.
*
* @param landmarksPacket A MediaPipe packet wrapping a `std::vector<NormalizedlandmarkListProto>`.
* @param worldLandmarksPacket A MediaPipe packet wrapping a `std::vector<LandmarkListProto>`.
* @param segmentationMasksPacket a MediaPipe packet wrapping a `std::vector<Image>`.
*
* @return An `MPPPoseLandmarkerResult` object that contains the hand landmark detection
* results.
*/
+ (MPPPoseLandmarkerResult *)
poseLandmarkerResultWithLandmarksPacket:(const mediapipe::Packet &)landmarksPacket
worldLandmarksPacket:(const mediapipe::Packet &)worldLandmarksPacket
segmentationMasksPacket:(const mediapipe::Packet *)segmentationMasksPacket;
/**
* Creates an `MPPPoseLandmarkerResult` from landmarks, world landmarks and segmentation mask
* images.
*
* @param landmarksProto A vector of protos of type `std::vector<NormalizedlandmarkListProto>`.
* @param worldLandmarksPacket A vector of protos of type `std::vector<LandmarkListProto>`.
* @param segmentationMasks A vector of type `std::vector<Image>`.
* @param timestampInMilliSeconds The timestamp of the Packet that contained the result.
*
* @return An `MPPPoseLandmarkerResult` object that contains the pose landmark detection
* results.
*/
+ (MPPPoseLandmarkerResult *)
poseLandmarkerResultWithLandmarksProto:
(const std::vector<mediapipe::NormalizedLandmarkList> &)landmarksProto
worldLandmarksProto:
(const std::vector<mediapipe::LandmarkList> &)worldLandmarksProto
segmentationMasks:(const std::vector<mediapipe::Image> *)segmentationMasks
timestampInMilliSeconds:(NSInteger)timestampInMilliseconds;
@end
NS_ASSUME_NONNULL_END

122
mediapipe/tasks/ios/vision/pose_landmarker/utils/sources/MPPPoseLandmarkerResult+Helpers.mm Normal file
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@ -0,0 +1,122 @@
// Copyright 2023 The MediaPipe Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#import "mediapipe/tasks/ios/vision/pose_landmarker/utils/sources/MPPPoseLandmarkerResult+Helpers.h"
#import "mediapipe/tasks/ios/components/containers/utils/sources/MPPLandmark+Helpers.h"
namespace {
using LandmarkListProto = ::mediapipe::LandmarkList;
using NormalizedLandmarkListProto = ::mediapipe::NormalizedLandmarkList;
using ::mediapipe::Image;
using ::mediapipe::Packet;
} // namespace
@implementation MPPPoseLandmarkerResult (Helpers)
+ (MPPPoseLandmarkerResult *)emptyPoseLandmarkerResultWithTimestampInMilliseconds:
(NSInteger)timestampInMilliseconds {
return [[MPPPoseLandmarkerResult alloc] initWithLandmarks:@[]
worldLandmarks:@[]
segmentationMasks:@[]
timestampInMilliseconds:timestampInMilliseconds];
}
+ (MPPPoseLandmarkerResult *)
poseLandmarkerResultWithLandmarksProto:
(const std::vector<NormalizedLandmarkListProto> &)landmarksProto
worldLandmarksProto:
(const std::vector<LandmarkListProto> &)worldLandmarksProto
segmentationMasks:(const std::vector<Image> *)segmentationMasks
timestampInMilliSeconds:(NSInteger)timestampInMilliseconds {
NSMutableArray<NSMutableArray<MPPNormalizedLandmark *> *> *multiplePoseLandmarks =
[NSMutableArray arrayWithCapacity:(NSUInteger)landmarksProto.size()];
for (const auto &landmarkListProto : landmarksProto) {
NSMutableArray<MPPNormalizedLandmark *> *landmarks =
[NSMutableArray arrayWithCapacity:(NSUInteger)landmarkListProto.landmark().size()];
for (const auto &normalizedLandmarkProto : landmarkListProto.landmark()) {
MPPNormalizedLandmark *normalizedLandmark =
[MPPNormalizedLandmark normalizedLandmarkWithProto:normalizedLandmarkProto];
[landmarks addObject:normalizedLandmark];
}
[multiplePoseLandmarks addObject:landmarks];
}
NSMutableArray<NSMutableArray<MPPLandmark *> *> *multiplePoseWorldLandmarks =
[NSMutableArray arrayWithCapacity:(NSUInteger)worldLandmarksProto.size()];
for (const auto &worldLandmarkListProto : worldLandmarksProto) {
NSMutableArray<MPPLandmark *> *worldLandmarks =
[NSMutableArray arrayWithCapacity:(NSUInteger)worldLandmarkListProto.landmark().size()];
for (const auto &landmarkProto : worldLandmarkListProto.landmark()) {
MPPLandmark *landmark = [MPPLandmark landmarkWithProto:landmarkProto];
[worldLandmarks addObject:landmark];
}
[multiplePoseWorldLandmarks addObject:worldLandmarks];
}
NSMutableArray<MPPMask *> *confidenceMasks =
[NSMutableArray arrayWithCapacity:(NSUInteger)segmentationMasks->size()];
for (const auto &segmentationMask : *segmentationMasks) {
[confidenceMasks addObject:[[MPPMask alloc] initWithFloat32Data:(float *)segmentationMask
.GetImageFrameSharedPtr()
.get()
->PixelData()
width:segmentationMask.width()
height:segmentationMask.height()
/** Always deep copy */
shouldCopy:YES]];
}
MPPPoseLandmarkerResult *poseLandmarkerResult =
[[MPPPoseLandmarkerResult alloc] initWithLandmarks:multiplePoseLandmarks
worldLandmarks:multiplePoseWorldLandmarks
segmentationMasks:confidenceMasks
timestampInMilliseconds:timestampInMilliseconds];
return poseLandmarkerResult;
}
+ (MPPPoseLandmarkerResult *)
poseLandmarkerResultWithLandmarksPacket:(const Packet &)landmarksPacket
worldLandmarksPacket:(const Packet &)worldLandmarksPacket
segmentationMasksPacket:(const Packet *)segmentationMasksPacket {
NSInteger timestampInMilliseconds =
(NSInteger)(landmarksPacket.Timestamp().Value() / kMicroSecondsPerMilliSecond);
if (landmarksPacket.IsEmpty()) {
return [MPPPoseLandmarkerResult
emptyPoseLandmarkerResultWithTimestampInMilliseconds:timestampInMilliseconds];
}
if (!landmarksPacket.ValidateAsType<std::vector<NormalizedLandmarkListProto>>().ok() ||
!worldLandmarksPacket.ValidateAsType<std::vector<LandmarkListProto>>().ok()) {
return [MPPPoseLandmarkerResult
emptyPoseLandmarkerResultWithTimestampInMilliseconds:timestampInMilliseconds];
}
const std::vector<Image> *segmentationMasks =
segmentationMasksPacket ? &(segmentationMasksPacket->Get<std::vector<Image>>()) : nullptr;
return [MPPPoseLandmarkerResult
poseLandmarkerResultWithLandmarksProto:landmarksPacket
.Get<std::vector<NormalizedLandmarkListProto>>()
worldLandmarksProto:worldLandmarksPacket
.Get<std::vector<LandmarkListProto>>()
segmentationMasks:segmentationMasks
timestampInMilliSeconds:timestampInMilliseconds];
}
@end